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  • Where can I get the 10k common English dictionary words which Stack overflow uses in related question? [migrated]

    - by itpian.com
    Where can I get the 10k common English dictionary words which Stack overflow uses in related question? Here in SE podcast - http://blog.stackoverflow.com/2008/12/podcast-32/ One of our major performance optimizations for the “related questions” query is removing the top 10,000 most common English dictionary words (as determined by Google search) before submitting the query to the SQL Server 2008 full text engine. It’s shocking how little is left of most posts once you remove the top 10k English dictionary words. This helps limit and narrow the returned results, which makes the query dramatically faster.

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  • Problem with currency formats and big numbers [on hold]

    - by user132750
    I am working on a dollars to euros/euros to dollars converter in C#. I got the formula, $ times 0.73361 = euro, and I have checked Google with the answers. They were right, (1 dollar equals 0.73 euros). However, it stops working properly when the dollar input value is higher than $1363. This is what I get with $1364: $1364 = 1 000,64 €. I don't know what to do, will someone please help me? Thanks. decimal toEuro; Val.doy = "$" + decimal.Parse(richTextBox1.Text); //Ignore this, it's for the output form CultureInfo eu = new CultureInfo("fr-FR"); toEuro = decimal.Parse(richTextBox1.Text.Trim()); toEuro = toEuro * 0.73361m; richTextBox1.Clear(); Val.duh = toEuro.ToString("C2", eu);

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  • Using bone joints

    - by raser
    I am trying to save bone joints to a file, and am using this format. I was wondering if anyone could clear up a few questions I have why do I need to provide rotation data for the bone, if I already gave it the location? How do I calculate the rotation of each axis if I have the relative location from the parent joint? ** EDIT ** After doing some more digging, I think that it has something to do with quaternions, so, could someone point me to a good resource on using quaternions for bone joints? ** EDIT AGAIN ** I think I've solved it, but I don't understand how it works. I can't seem to find any google results explaining it. I'd appreciate if anyone could send resources explaining it to me.

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  • Why do int when add up in java keeps on adding? [closed]

    - by Trycon
    I'm developing a game. I'm really new in java and researched google: why does an int when added, keeps on adding java Most of the times, it always adds even: STOP_DAMAGE+=1; Even sometimes, it subtract till negative. I'm annoyed. Sometimes it doesn't add too much. I do not understand. Here is my code: if(isPressed==true) { if(STOP_DAMAGE<=5) { if(WAIT_DAMAGE>=3000) { ENEMY_SHIP_HEALTH-=SHIP_DAMAGE_ENEMY; STOP_DAMAGE+=1; } } } for(;WAIT_DAMAGE>=3003;) { WAIT_DAMAGE-=WAIT_DAMAGE;//time is deducted } //WAIT_DAMAGE is a time int

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  • IPC (inter-process communication) server to connect different runtimes

    - by wvxvw
    Couple days ago I've spoken to someone who mentioned a server product that has as its main goal the ability to create inter-runtime layer that allows sharing in-memory object between different languages. The person also described the process of creating such layer as defining a number of structs in a special way such that different languages which access the objects would have the same idea of what the data they access looks like. Unfortunately, I forgot what this product is called, and Google didn't help me finding it so far. Would you happen to know what he was talking about?

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  • what do you do when you are stuck at programming and you don't have access to internet? [migrated]

    - by minusSeven
    This is a question most of us have faced while programming. Getting stuck! It might be a programmatic problem or tool problem, most of us eventually face it. You know something is supposed to work some way but just doesn't. You tried a number of things to solve it but isn't helping and you are not sure why. I once remember being stuck hours at programming job. Eventually I figured out for some reason or other my IDE wasn't recompiling my new changes in some of the classes .This is just an example but I am sure most you have faced similar situation. So how would you go about solving it if you didn't have access to Google or Stack Exchange? Lets be honest, using internet you aren't solving the problem, somebody else is doing it for you. So if you didn't have access to internet or a friend who might help, how would you go about solving it?

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  • Does the .ending on a domain need to be relevant? [closed]

    - by Mat Doidge
    Possible Duplicate: Does Google penalize .me or .tv sites? I see a lot of people now opting to use myname.im or myname.me But after doing some checking, i found that .im domain names are meant to be Isle of Man endings. Is this correct, and does it matter that people opt to use this domain ending if they are not even based anywhere near the Isle of Man. It is Ok to use a domain ending purely for how good it sounds is what I'm really after. Or is it bad practice to do this.

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  • Building a simple web app with database? [on hold]

    - by Zooce
    I'm building a simple airline reservation system (web app) for a class. I'm trying to find out where to start learning about implementing and integrating a sql database. User's should be able to search for available flights based on destination and departure cities and the like. A good example would be Google Flights. I'd like to access a data base with all of the flight information and display it within tables on the web page. Admins should be able to modify the databases as well. I've tried to learn about things like Node.js, PHP, and AJAX, but most of the tutorials that I've found have been difficult to understand. Any suggestions would be really appreciated, thanks!

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  • FTP client says directory permissions are 0000

    - by nnnmmm
    I encountered a problem that appears to be related to permissions (same as this one). When I looked at the permissions of various directories in FireFTP, they all were 0000, which is obviously nonsense, since all the other pages are served without any problems. I only have ftp access, and I think it’s a Windows server (The header says "Server: Microsoft-IIS/7.5"). I’ve tried a different ftp client, with the same result. Changing the permissions results in a "'SITE CHMOD 764 [directory]': command not understood" error. A search on Google and SO for "permissions windows 0000" and similar queries didn’t turn up anything. How can I view and change the actual permissions?

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  • MoodScope : l'outil qui détermine l'humeur d'un utilisateur de smartphone, quelle application intéressante voyez-vous à ce projet Microsoft Research ?

    MoodScope : l'outil qui peut determiner l'humeur de l'utilisateur d'un smartphone Quelle application intéressante voyez-vous à ce projet de Microsoft Research ?Google a dévoilé une API qui permet de déterminer si l'utilisateur marche, court ou fait du vélo. Microsoft, lui, travaille sur un outil qui va encore plus loin dans l'analyse du contexte. Un outil qui permet de déterminer l'humeur de l'utilisateur à l'instant T.Baptisé MoodScope, l'outil des Labos R&D de l'éditeur analyse plusieurs facteurs parmi lesquels le degré d'activité sur le téléphone, l'heure de la journée, le jour de la semaine (au bureau, en week-end, etc.) ou les appl...

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  • How do I get the wireless card on a Lenovo S205 working?

    - by user206829
    I tried to install 12.04, 13.04, and now 13.10 on the machine and followed all the instructions that made sense that I could find and still have not gotten wifi to work. It keeps it hard blocked for some reason, not sure why and not sure anyone out there either has figured it out because I would have found it on Google. When I boot from the formatted USB drive, I have WiFi and everything working, why doesn't work after the USB drive is removed? What driver is the USB/wubi or whatever using so that I can install it and have things working? I could have used wubi and installed Ubuntu like that, but I want to make this machine a fully dedicated Ubuntu machine. The laptop is a Lenovo S205 in case anyone can help. I really would like to use 12.04 or higher, i don't want to downgrade to an older version of Ubuntu if at all possible.

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  • 'outlier': I/O ???

    - by katsumii
    ??? outlier ???????????????????????????????? - Wikipedia???(????)????????????????????????????????????????????????????????????????outlier site:docs.oracle.com - Google SearchOutlier Update Percent (MRP and Supply Chain Planning Help) Oracle Demantra Implementation Guide OraSVMClassificationSettings (Oracle Data Mining Java API ... Defining a Forecast Set (MRP and Supply Chain Planning Help)????????????????????? I/O ???????????? ????????? 'Exadata' ? 'outlier' ???????????????????????????????Guy Harrison - Yet Another Database Blog - Exadata Smart Flash Logging–Outliersflash log feature was effective in eliminating or at least reducing very extreme outlying redo log sync times.????????? Solaris 11.1 ?? I/O ??????????????????????Oracle Announces Availability of Oracle Solaris 11.1 and Oracle Solaris Cluster 4.1Oracle Solaris 11.1 exposes OracleSolaris DTraceI/O interfaces that allow an Oracle Database administrator to identify I/O outliers and subsequently isolate network or storage bottlenecks.

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  • simple app for salary calculation [on hold]

    - by user17981
    I am very new to webdevelopment. I've been given this task to built an application to calculate final salary in the end of the month. The employees are callers and after every call they will get some form on which they will give their call summery like time duration. They are payed for each call depending on time duration. In the back end there will be sql database and some code to calculate the the final salary. Current they have to calculate the salary manually, they are just using google docs form.I have some idea that i need php in the front end sql in the back end but i am not clear about the whole picture please can someone give me a clear skeleton. My main question is what to use to calculate the salary from the database??And what should i use to create a front end form ??

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  • Brevets : Motorola gagne à son tour contre Microsoft, un tribunal allemand tranche en faveur du constructeur dans l'affaire Android

    Brevets : Microsoft gagne contre Motorola en Allemagne les terminaux Android du constructeur interdits de ventes sur le territoire Les procès Android se poursuivent avec leurs lots de rebondissements, et laissent peu à peu place à des décisions de justice. Après le verdict de l'affaire Google contre Oracle pour violation de brevets Java dans Android, dont le géant de la recherche en est sorti vainqueur, c'est au tour d'un autre gros feuilleton IT qui dure depuis plus d'un an de livrer sa sentence. Un tribunal régional de Munich en Allemagne a arrêté que les téléphones Android de Motorola Mobility violent les brevets de Microsoft. Plus précisément, ces dispositifs empièten...

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  • Android programming. Application stopped unexpectedly.

    - by user277704
    I've just created a prototype of interface for my android app and tried to run it. Unfortunately I get an error that my app has stopped unexpectedly (my reputation doesn't allow me to post images so follow my links): screenshot of error message This is layout mode of editing. Everything looks as I want so there shouldn't be errors: mobileka.freehostia.com/3.png (I can post only one hyperlink...) This is my main.xml code: <code> <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent" android:gravity="top" android:background="@drawable/back" > <TextView android:id="@+id/score" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text = "@string/scoreT" android:textColor="@string/scoreColor" android:gravity = "left" android:typeface="serif" android:textStyle="bold|italic" android:textSize="16sp" android:paddingLeft = "10px" android:paddingTop="4px"/ <TextView android:id = "@+id/scoreTxt" android:layout_toRightOf="@+id/score" android:textSize="16sp" android:paddingTop = "5px" android:paddingLeft="4px" android:typeface="serif" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text=" 0" android:textColor="@string/scoreTextColor" android:gravity = "left"/> <TextView android:id = "@+id/scoreSeparator" android:layout_toRightOf="@+id/scoreTxt" android:textSize="16sp" android:paddingTop = "3px" android:paddingLeft="4px" android:typeface="serif" android:textStyle="bold" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="|" android:textColor="@string/scoreColor" android:gravity = "left"/> <TextView android:id = "@+id/timerTxt" android:layout_alignParentRight="true" android:textSize="16sp" android:paddingRight="10px" android:paddingTop="4px" android:typeface="serif" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textColor="@string/scoreTextColor" android:gravity = "right" android:text="00:00" /> <TextView android:id = "@+id/timer" android:layout_toLeftOf="@+id/timerTxt" android:textColor="@string/scoreColor" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textSize="16sp" android:padding = "3px" android:typeface="serif" android:textStyle="bold|italic" android:text="@string/timerT" android:gravity = "left"/> <TextView android:id = "@+id/timerSeparator" android:layout_toLeftOf="@+id/timer" android:textSize="16sp" android:paddingTop = "3px" android:paddingLeft="4px" android:typeface="serif" android:textStyle="bold" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="|" android:textColor="@string/scoreColor" android:gravity = "left"/> <ImageButton android:id="@+id/buttonOne" android:layout_below="@+id/score" android:layout_marginTop="40px" android:layout_marginLeft="14px" android:layout_width="wrap_content" android:layout_height="wrap_content" android:clickable="true" android:src="@drawable/inactive"/> <ImageButton android:id="@+id/buttonTwo" android:layout_toRightOf="@+id/buttonOne" android:layout_marginTop="63px" android:layout_marginLeft="10px" android:layout_width="wrap_content" android:layout_height="wrap_content" android:src="@drawable/inactive" /> <ImageButton android:id="@+id/buttonThree" android:layout_toRightOf="@+id/buttonTwo" android:layout_marginTop="63px" android:layout_marginLeft="10px" android:layout_width="wrap_content" android:layout_height="wrap_content" android:src="@drawable/inactive" /> <ImageButton android:id="@+id/buttonFour" android:layout_toRightOf="@+id/buttonThree" android:layout_marginTop="63px" android:layout_marginLeft="10px" android:layout_width="wrap_content" android:layout_height="wrap_content" android:src="@drawable/inactive" /> <ImageButton android:id="@+id/buttonFive" android:layout_below="@+id/buttonOne" android:layout_marginTop="40px" android:layout_marginLeft="14px" android:layout_width="wrap_content" android:layout_height="wrap_content" android:src="@drawable/inactive" /> <ImageButton android:id="@+id/buttonSix" android:layout_toRightOf="@+id/buttonFive" android:layout_marginTop="164px" android:layout_marginLeft="10px" android:layout_width="wrap_content" android:layout_height="wrap_content" android:src="@drawable/inactive" /> <ImageButton android:id="@+id/buttonSeven" android:layout_toRightOf="@+id/buttonSix" android:layout_marginTop="164px" android:layout_marginLeft="10px" android:layout_width="wrap_content" android:layout_height="wrap_content" android:src="@drawable/inactive" /> <ImageButton android:id="@+id/buttonEight" android:layout_toRightOf="@+id/buttonSeven" android:layout_marginTop="164px" android:layout_marginLeft="10px" android:layout_width="wrap_content" android:layout_height="wrap_content" android:src="@drawable/inactive" /> <ImageButton android:id="@+id/buttonNine" android:layout_below="@+id/buttonEight" android:layout_marginTop="40px" android:layout_marginLeft="14px" android:layout_width="wrap_content" android:layout_height="wrap_content" android:src="@drawable/inactive" /> <ImageButton android:id="@+id/buttonTen" android:layout_toRightOf="@+id/buttonNine" android:layout_marginTop="264px" android:layout_marginLeft="10px" android:layout_width="wrap_content" android:layout_height="wrap_content" android:src="@drawable/inactive" /> <ImageButton android:id="@+id/buttonEleven" android:layout_toRightOf="@+id/buttonTen" android:layout_marginTop="264px" android:layout_marginLeft="10px" android:layout_width="wrap_content" android:layout_height="wrap_content" android:src="@drawable/inactive" /> <ImageButton android:id="@+id/buttonTwelve" android:layout_toRightOf="@+id/buttonEleven" android:layout_marginTop="264px" android:layout_marginLeft="10px" android:layout_width="wrap_content" android:layout_height="wrap_content" android:src="@drawable/inactive" /> And this is my logcat errors (p.s. line #12 is the first TextView in main.xml): 03-26 22:59:31.670: WARN/dalvikvm(185): threadid=3: thread exiting with uncaught exception (group=0x4001b188) 03-26 22:59:31.727: ERROR/AndroidRuntime(185): Uncaught handler: thread main exiting due to uncaught exception 03-26 22:59:31.784: ERROR/AndroidRuntime(185): java.lang.RuntimeException: Unable to start activity ComponentInfo{kz.androidmarket.www.randomtest1/kz.androidmarket.www.randomtest1.randomTest1}: android.view.InflateException: Binary XML file line #12: Error inflating class 03-26 22:59:31.784: ERROR/AndroidRuntime(185): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2496) 03-26 22:59:31.784: ERROR/AndroidRuntime(185): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2512) 03-26 22:59:31.784: ERROR/AndroidRuntime(185): at android.app.ActivityThread.access$2200(ActivityThread.java:119) 03-26 22:59:31.784: ERROR/AndroidRuntime(185): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1863) 03-26 22:59:31.784: ERROR/AndroidRuntime(185): at android.os.Handler.dispatchMessage(Handler.java:99) 03-26 22:59:31.784: ERROR/AndroidRuntime(185): at android.os.Looper.loop(Looper.java:123) 03-26 22:59:31.784: ERROR/AndroidRuntime(185): at android.app.ActivityThread.main(ActivityThread.java:4363) 03-26 22:59:31.784: ERROR/AndroidRuntime(185): at java.lang.reflect.Method.invokeNative(Native Method) 03-26 22:59:31.784: ERROR/AndroidRuntime(185): at java.lang.reflect.Method.invoke(Method.java:521) 03-26 22:59:31.784: ERROR/AndroidRuntime(185): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860) 03-26 22:59:31.784: ERROR/AndroidRuntime(185): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618) 03-26 22:59:31.784: ERROR/AndroidRuntime(185): at dalvik.system.NativeStart.main(Native Method) 03-26 22:59:31.784: ERROR/AndroidRuntime(185): Caused by: android.view.InflateException: Binary XML file line #12: Error inflating class 03-26 22:59:31.784: ERROR/AndroidRuntime(185): at android.view.LayoutInflater.createView(LayoutInflater.java:513) 03-26 22:59:31.784: ERROR/AndroidRuntime(185): at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:56) 03-26 22:59:31.784: ERROR/AndroidRuntime(185): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:563) 03-26 22:59:31.784: ERROR/AndroidRuntime(185): at android.view.LayoutInflater.rInflate(LayoutInflater.java:618) 03-26 22:59:31.784: ERROR/AndroidRuntime(185): at android.view.LayoutInflater.inflate(LayoutInflater.java:407) 03-26 22:59:31.784: ERROR/AndroidRuntime(185): at android.view.LayoutInflater.inflate(LayoutInflater.java:320) 03-26 22:59:31.784: ERROR/AndroidRuntime(185): at android.view.LayoutInflater.inflate(LayoutInflater.java:276) 03-26 22:59:31.784: ERROR/AndroidRuntime(185): at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:198) 03-26 22:59:31.784: ERROR/AndroidRuntime(185): at android.app.Activity.setContentView(Activity.java:1622) 03-26 22:59:31.784: ERROR/AndroidRuntime(185): at kz.androidmarket.www.randomtest1.randomTest1.onCreate(randomTest1.java:11) 03-26 22:59:31.784: ERROR/AndroidRuntime(185): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047) 03-26 22:59:31.784: ERROR/AndroidRuntime(185): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2459) 03-26 22:59:31.784: ERROR/AndroidRuntime(185): ... 11 more 03-26 22:59:31.784: ERROR/AndroidRuntime(185): Caused by: java.lang.reflect.InvocationTargetException 03-26 22:59:31.784: ERROR/AndroidRuntime(185): at android.widget.TextView.(TextView.java:320) 03-26 22:59:31.784: ERROR/AndroidRuntime(185): at java.lang.reflect.Constructor.constructNative(Native Method) 03-26 22:59:31.784: ERROR/AndroidRuntime(185): at java.lang.reflect.Constructor.newInstance(Constructor.java:446) 03-26 22:59:31.784: ERROR/AndroidRuntime(185): at android.view.LayoutInflater.createView(LayoutInflater.java:500) 03-26 22:59:31.784: ERROR/AndroidRuntime(185): ... 22 more 03-26 22:59:31.784: ERROR/AndroidRuntime(185): Caused by: android.content.res.Resources$NotFoundException: File #ffff9900 from drawable resource ID #0x7f040002: .xml extension required 03-26 22:59:31.784: ERROR/AndroidRuntime(185): at android.content.res.Resources.loadColorStateList(Resources.java:1820) 03-26 22:59:31.784: ERROR/AndroidRuntime(185): at android.content.res.TypedArray.getColorStateList(TypedArray.java:289) 03-26 22:59:31.784: ERROR/AndroidRuntime(185): at android.widget.TextView.(TextView.java:627) 03-26 22:59:31.784: ERROR/AndroidRuntime(185): ... 26 more Could anybody help me?

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  • Programming an Android Button to update EditText views

    - by bergler77
    Ok guys, I have a button in android that i'm trying to use to update 8 EditText Views with different random numbers. Everything works up until I click the button. It appears I am missing a resource according to the debugger, but I'm not sure what. I've tried several different ways of implementing the button. Here is what I have after looking at several posts. import java.util.Random; import android.os.Bundle; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.EditText; public class MyCharNewChar extends MyCharActivity { private OnClickListener randomButtonListener = new OnClickListener(){ public void onClick(View v) { //Button creates a set of random numbers and updates the values //of the EditText views. Random rand = new Random(); int STR = 1 + rand.nextInt(12); int AGI = 1 + rand.nextInt(12); int DEX = 1 + rand.nextInt(12); int WIS = 1 + rand.nextInt(12); int INT = 1 + rand.nextInt(12); int CON = 1 + rand.nextInt(12); int HP = 1 + rand.nextInt(20); int AC = 1 + rand.nextInt(6); EditText str = (EditText) findViewById(R.id.str); str.setText(STR); EditText agi = (EditText) findViewById(R.id.agi); agi.setText(AGI); EditText dex = (EditText) findViewById(R.id.dex); dex.setText(DEX); EditText wis = (EditText) findViewById(R.id.wis); wis.setText(WIS); EditText intel = (EditText) findViewById(R.id.intel); intel.setText(INT); EditText con = (EditText) findViewById(R.id.con); con.setText(CON); EditText hp = (EditText) findViewById(R.id.baseHP); hp.setText(HP); EditText ac = (EditText) findViewById(R.id.baseAC); ac.setText(AC); } }; @Override public void onCreate(Bundle savedInstanceState){ super.onCreate(savedInstanceState); setContentView(R.layout.newchar); Button randomButton = (Button) findViewById(R.id.randomButton); randomButton.setOnClickListener(randomButtonListener); } } Here is the xml: <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/linearlayoutNew1" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" android:background="@drawable/background" > <TextView android:id="@+id/newCharLabel" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="@string/new_character_screen" android:textSize="24dp" android:textColor="@color/splash" android:textStyle="bold" android:gravity="center"/> <TextView android:id="@+id/nameLabel" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="@string/nameLabel" android:textSize="18dp" android:textColor="@color/splash"/> <EditText android:id="@+id/editText1" android:layout_width="match_parent" android:layout_height="wrap_content" android:ems="10" android:inputType="textPersonName" > <requestFocus /> </EditText> <TableLayout android:id="@+id/statsLayout" android:layout_width="match_parent" android:layout_height="wrap_content" android:padding="5dp"> <TableRow android:id="@+id/tableRow01" android:orientation="horizontal" android:layout_width="match_parent" android:layout_height="wrap_content" android:padding="5dp"> <TextView android:id="@+id/strLabel" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/strLabel" android:textSize="18dp" android:textColor="@color/splash"/> <EditText android:id="@+id/str" android:layout_width="wrap_content" android:layout_height="wrap_content" android:ems="3" android:inputType="number" /> <TextView android:id="@+id/agiLabel" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/agiLabel" android:textSize="18dp" android:textColor="@color/splash"/> <EditText android:id="@+id/agi" android:layout_width="wrap_content" android:layout_height="wrap_content" android:ems="3" android:inputType="number"/> <TextView android:id="@+id/dexLabel" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/dexLabel" android:textSize="18dp" android:textColor="@color/splash"/> <EditText android:id="@+id/dex" android:layout_width="wrap_content" android:layout_height="wrap_content" android:ems="3" android:inputType="number"/> </TableRow> <TableRow android:id="@+id/tableRow02" android:orientation="horizontal" android:layout_width="match_parent" android:layout_height="wrap_content" android:padding="5dp"> <TextView android:id="@+id/intLabel" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/intLabel" android:textSize="18dp" android:textColor="@color/splash"/> <EditText android:id="@+id/intel" android:layout_width="wrap_content" android:layout_height="wrap_content" android:ems="3" android:inputType="number"/> <TextView android:id="@+id/wisLabel" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/wisLabel" android:textSize="18dp" android:textColor="@color/splash"/> <EditText android:id="@+id/wis" android:layout_width="wrap_content" android:layout_height="wrap_content" android:ems="3" android:inputType="number"/> <TextView android:id="@+id/conLabel" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/conLabel" android:textSize="18dp" android:textColor="@color/splash"/> <EditText android:id="@+id/con" android:layout_width="wrap_content" android:layout_height="wrap_content" android:ems="3" android:inputType="number"/> </TableRow> </TableLayout> <LinearLayout android:id="@+id/linearlayoutNew02" android:layout_width="match_parent" android:layout_height="wrap_content" android:padding="5dp" android:gravity="center"> <TextView android:id="@+id/baseHPLabel" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/hpLabel" android:textSize="18dp" android:textColor="@color/splash"/> <EditText android:id="@+id/baseHP" android:layout_width="wrap_content" android:layout_height="wrap_content" android:ems="3" android:inputType="number"/> <TextView android:id="@+id/baseACLabel" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/acLabel" android:textSize="18dp" android:textColor="@color/splash"/> <EditText android:id="@+id/baseAC" android:layout_width="wrap_content" android:layout_height="wrap_content" android:ems="3" android:inputType="number"/> </LinearLayout> <LinearLayout android:id="@+id/linearlayoutNew03" android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="horizontal"> <Button android:id="@+id/randomButton" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:text="@string/randomButton" android:textSize="16dp" android:clickable="true"/> </LinearLayout> </LinearLayout> I have also tried setting the onClick in xml to setup a specific onClick method. Still the same error so I must have a problem elsewhere. Any suggestions would be great!

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  • Simple Adapter error

    - by Rahul Varma
    Hi, I have the following errors when i try to access the simple adapter from my program... Plz can anyone help me solving the error... Desperate to get it done.... android.widget.SimpleAdapter.getCount(SimpleAdapter.java:95) android.widget.ListView.setAdapter(ListView.java:431) com.stellent.gorinka.MusicListActivity.list(MusicListActivity.java:76) com.stellent.gorinka.MusicListActivity$1.run(MusicListActivity.java:67) android.os.Handler.handleCallback(Handler.java:587) android.os.Handler.dispatchMessage(Handler.java:92) at android.os.Looper.loop(Looper.java:123) android.os.Handler.handleCallback(Handler.java:587) android.os.Handler.dispatchMessage(Handler.java:92) android.os.Looper.loop(Looper.java:123) Here' the code for Adapter... public class SongsAdapter extends SimpleAdapter{ static List<HashMap<String,String>> songsList; Context context; LayoutInflater inflater; public SongsAdapter(Context context,List<HashMap<String,String>> imgListWeb,int layout,String[] from,int[] to,LayoutInflater inflater) { super(context,songsList,layout,from,to); this.songsList=songsList; this.context=context; this.inflater=inflater; // TODO Auto-generated constructor stub }@Override public View getView(int postition,View convertView,ViewGroup parent)throws java.lang.OutOfMemoryError{ try { View v = ((LayoutInflater) inflater).inflate(R.layout.row,null); ImageView images=(ImageView)v.findViewById(R.id.image); TextView tvTitle=(TextView)v.findViewById(R.id.text1); TextView tvAlbum=(TextView)v.findViewById(R.id.text2); TextView tvArtist=(TextView)v.findViewById(R.id.text3); HashMap<String,String> songsHash=songsList.get(postition); String path=songsHash.get("path"); String title=songsHash.get("title"); String album=songsHash.get("album"); String artist=songsHash.get("artist"); String imgPath=path; final ImageView imageView = (ImageView) v.findViewById(R.id.image); AsyncImageLoaderv asyncImageLoader=new AsyncImageLoaderv(); Bitmap cachedImage = asyncImageLoader.loadDrawable(imgPath, new AsyncImageLoaderv.ImageCallback() { public void imageLoaded(Bitmap imageDrawable, String imageUrl) { imageView.setImageBitmap(imageDrawable); } }); imageView.setImageBitmap(cachedImage); tvTitle.setText(title); tvAlbum.setText(album); tvArtist.setText(artist); return v; } catch(Exception e){ Log.e("error",e.toString()); } return null; } And also in my main program the focus is not entering the loop... The implementation in the loop isnt getting executed...Here's the code for it... public void list() { Log.d("#####","#####"); LayoutInflater inflater=getLayoutInflater(); String[] from={}; int[] n={}; adapter=new SongsAdapter(getApplicationContext(),songNodeDet,R.layout.row,from,n,inflater); lv.setAdapter(adapter);} private Handler handler = new Handler() { public void handleMessage(Message msg){ Log.d("*****","handler"); removeDialog(0); p.dismiss(); } }; public void webObjectList(Object[] imgListObj,String logInSess) throws XMLRPCException{ songNodeWeb = new HashMap<?,?>[imgListObj.length]; if(imgListObj!=null){ Log.e("completed","completed"); for(int i=0;i<imgListObj.length;i++){ //imgListObj.length songNodeWeb[i]=(HashMap<?,?>)imgListObj[i]; String nodeid=(String) songNodeWeb[i].get("nid"); Log.e("img",i+"completed"); HashMap<String,String> nData=new HashMap<String,String>(); nData.put("nid",nodeid); Object nodeget=client.call("node.get",logInSess,nodeid); HashMap<?,?> imgNode=(HashMap<?,?>)nodeget; String titleName=(String) imgNode.get("titles"); String movieName=(String) imgNode.get("album"); String singerName=(String) imgNode.get("artist"); nData.put("titles", titleName); nData.put("album", movieName); nData.put("artist", singerName); Object[] imgObject=(Object[])imgNode.get("title_format"); HashMap<?,?>[] imgDetails=new HashMap<?,?>[imgObject.length]; imgDetails[0]=(HashMap<?, ?>)imgObject[0]; String path=(String) imgDetails[0].get("filepath"); if(path.contains(" ")){ path=path.replace(" ", "%20"); } String imgPath="http://www.gorinka.com/"+path; paths.add(imgPath); nData.put("path", imgPath); Log.e("my path",path); String mime=(String)imgDetails[0].get("filemime"); nData.put("mime", mime); SongsList songs=new SongsList(titleName,movieName,singerName,imgPath,imgPath); SngList.add(i,songs); songNodeDet.add(i,nData); } Log.e("paths values",paths.toString()); // return imgNodeDet; handler.sendEmptyMessage(0); } } public void getSongs() throws MalformedURLException, XMLRPCException { String ur="http://www.gorinka.com/?q=services/xmlrpc"; URL u=new URL(ur); client = new XMLRPCClient(u); //Connecting to the website HashMap<?, ?> siteConn =(HashMap<?, ?>) client.call("system.connect"); // Getting initial sessio id String initSess=(String)siteConn.get("sessid"); //Login to the site using session id HashMap<?, ?> logInConn =(HashMap<?, ?>) client.call("user.login",initSess,"prakash","stellentsoft2009"); //Getting Login sessid logInSess=(String)logInConn.get("sessid"); websongListObject =(Object[]) client.call("nodetype.get",logInSess,""); webObjectList(websongListObject,logInSess); Log.d("webObjectList","webObjectList"); runOnUiThread(returnRes); } }

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  • How to set a imageButton is an RSS

    - by L?c Song
    I have a feed_layout.xml <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" > <LinearLayout android:baselineAligned="false" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_marginTop="10dp" android:orientation="horizontal" > <LinearLayout android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:orientation="vertical" > <ImageButton android:layout_width="138dp" android:layout_height="138dp" android:layout_gravity="center" android:onClick="homeImageButton" android:scaleType="fitStart" android:src="@drawable/home" android:tag="1" /> </LinearLayout> <LinearLayout android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:orientation="vertical" > <ImageButton android:layout_width="138dp" android:layout_height="138dp" android:layout_gravity="center" android:scaleType="centerCrop" android:onClick="thegioiImageButton" android:src="@drawable/home" android:tag="2" /> </LinearLayout> </LinearLayout> <LinearLayout android:baselineAligned="false" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_marginTop="10dp" android:orientation="horizontal" > <LinearLayout android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:orientation="vertical" > <ImageButton android:layout_width="138dp" android:layout_height="138dp" android:layout_gravity="center" android:scaleType="centerCrop" android:onClick="giaitriImageButton" android:src="@drawable/home" android:tag="3" /> </LinearLayout> <LinearLayout android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:orientation="vertical" > <ImageButton android:layout_width="138dp" android:layout_height="138dp" android:layout_gravity="center" android:scaleType="centerCrop" android:onClick="thethaoImageButton" android:src="@drawable/home" android:tag="4" /> </LinearLayout> </LinearLayout> <LinearLayout android:baselineAligned="false" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_marginTop="10dp" android:orientation="horizontal" > <LinearLayout android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:orientation="vertical" > <ImageButton android:layout_width="138dp" android:layout_height="138dp" android:layout_gravity="center" android:scaleType="centerCrop" android:onClick="khoahocImageButton" android:src="@drawable/home" android:tag="5" /> </LinearLayout> <LinearLayout android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:orientation="vertical" > <ImageButton android:layout_width="138dp" android:layout_height="138dp" android:layout_gravity="center" android:scaleType="centerCrop" android:onClick="xeImageButton" android:src="@drawable/home" android:tag="6" /> </LinearLayout> </LinearLayout> </LinearLayout> and feedActivity.java package com.dqh.vnexpressrssreader; import android.R.string; import android.app.Activity; import android.content.Intent; import android.os.Bundle; import android.util.Log; import android.view.View; import android.widget.ImageButton; import android.widget.Toast; public class FeedActivity extends Activity { public String tagImg; private static final String TAG = "FeedActivity"; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.feed_layout); } public void homeImageButton(View v) { ImageButton imageButtonClicked = (ImageButton)v; tagImg = imageButtonClicked.getTag().toString(); setTagImg(tagImg); String tt = getTagImg(); Log.d(TAG, "FeedId: " + tt); Intent intent = new Intent(getApplicationContext(), ItemsActivity.class); startActivityForResult(intent, 0); } public void thegioiImageButton(View v) { ImageButton imageButtonClicked = (ImageButton)v; tagImg = imageButtonClicked.getTag().toString(); //Log.d(TAG, "FeedId: " + imageButtonClicked.getTag()); Log.d(TAG, "FeedId: " + tagImg); Intent intent = new Intent(getApplicationContext(), ItemsActivity.class); startActivityForResult(intent, 0); } } and RssReader.java /** * */ package com.dqh.vnexpressrssreader.reader; import java.util.ArrayList; import java.util.List; import org.json.JSONException; import org.json.JSONObject; import com.dqh.vnexpressrssreader.FeedActivity; import com.dqh.vnexpressrssreader.NewsRssReaderDB; import com.dqh.vnexpressrssreader.util.RSSHandler; import com.dqh.vnexpressrssreader.util.Tintuc; import android.content.Context; import android.text.Html; import android.util.Log; /** * @author rob * */ public class RssReader { private final static String TAG = "RssReader"; private final static String BOLD_OPEN = "<B>"; private final static String BOLD_CLOSE = "</B>"; private final static String BREAK = "<BR>"; private final static String ITALIC_OPEN = "<I>"; private final static String ITALIC_CLOSE = "</I>"; private final static String SMALL_OPEN = "<SMALL>"; private final static String SMALL_CLOSE = "</SMALL>"; /** * This method defines a feed URL and then calles our SAX Handler to read the tintuc list * from the stream * * @return List<JSONObject> - suitable for the List View activity */ public static List<JSONObject> getLatestRssFeed(Context context) { NewsRssReaderDB newsRssReaderDB = new NewsRssReaderDB(context); List<Tintuc> tintucsFromDB = newsRssReaderDB.getLists(); return fillData(tintucsFromDB); } public static void getLatestRssFeed(Context context, String feed) { NewsRssReaderDB newsRssReaderDB = new NewsRssReaderDB(context); feed = "http://vnexpress.net/rss/the-gioi.rss"; //RSS 2 feed = "http://vnexpress.net/rss/the-thao.rss"; //RSS 3 feed = "http://vnexpress.net/rss/home.rss"; RSSHandler rh = new RSSHandler(); List<Tintuc> tintucs = rh.getLatestTintucs(feed); if ((tintucs != null) && (tintucs.size() > 0)) { for (Tintuc tintuc : tintucs) { if ((tintuc.getUrl() != null) && !newsRssReaderDB.checkUrlExist(tintuc.getUrl().toString())) { long tintucId = newsRssReaderDB.insertTintuc(tintuc); if (tintucId > 0) { Log.d(TAG, "saved tintucId: " + tintucId); } else { Log.e(TAG, "saved tintucId fail"); } } else { Log.e(TAG, "tintucs exist!"); } } } } /** * This method takes a list of Tintuc objects and converts them in to the * correct JSON format so the info can be processed by our list view * * @param tintucs - list<Tintuc> * @return List<JSONObject> - suitable for the List View activity */ private static List<JSONObject> fillData(List<Tintuc> tintucs) { List<JSONObject> items = new ArrayList<JSONObject>(); for (Tintuc tintuc : tintucs) { JSONObject current = new JSONObject(); try { buildJsonObject(tintuc, current); } catch (JSONException e) { Log.e("RSS ERROR", "Error creating JSON Object from RSS feed"); } items.add(current); } return items; } /** * This method takes a single Tintuc Object and converts it in to a single JSON object * including some additional HTML formating so they can be displayed nicely * * @param tintuc * @param current * @throws JSONException */ private static void buildJsonObject(Tintuc tintuc, JSONObject current) throws JSONException { String title = tintuc.getTieude(); String description = tintuc.getMota(); ///////////////////////// //////// 2 ///////////// String date = tintuc.getPubDate(); String imgLink = tintuc.getImgLink(); StringBuffer sb = new StringBuffer(); sb.append(BOLD_OPEN).append(title).append(BOLD_CLOSE); sb.append(BREAK); sb.append(description); sb.append(BREAK); sb.append(SMALL_OPEN).append(ITALIC_OPEN).append(date).append(ITALIC_CLOSE).append(SMALL_CLOSE); current.put("text", Html.fromHtml(sb.toString())); current.put("imageLink", imgLink); current.put("url", tintuc.getUrl().toString()); current.put("title", tintuc.getTieude()); } } I have 1 array RSS and I want each ImageButton is assigned a Rss??. I have attempt to call to FeedActivity from RSSReader but not be help me !

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  • Dojo - How to position tooltip close to text?

    - by user244394
    Like the title says i want to be able to display the tooltip close to the text, currently it is displayed far away in the cell. Tobe noted the tooltip positions correctly for large text, only fails for small text. In DOJO How can i position the tooltip close to the text? I have this bit of code snippet that display the tooltip in the grid cells. Screenshot attached, html <div class="some_app claro"></div> ... com.c.widget.EnhancedGrid = function ( aParent, options ) { var grid, options; this.theParentApp = aParent; dojo.require("dojox.grid.EnhancedGrid"); dojo.require("dojox.grid.enhanced.plugins.Menu"); dojo.require("dojox.grid.enhanced.plugins.Selector"); dojo.require("dojox.grid.enhanced.plugins.Pagination"); dojo.require("dojo.store.Memory"); dojo.require("dojo.data.ObjectStore"); dojo.require("dojo._base.xhr"); dojo.require("dojo.domReady!"); dojo.require("dojo.date.locale"); dojo.require("dojo._base.connect"); dojo.require("dojox.data.JsonRestStore"); dojo.require("dojo.data.ItemFileReadStore"); dojo.require("dijit.Menu"); dojo.require("dijit.MenuItem"); dojo.require('dijit.MenuSeparator'); dojo.require('dijit.CheckedMenuItem'); dojo.require('dijit.Tooltip'); dojo.require('dojo/query'); dojo.require("dojox.data.QueryReadStore"); // main initialization function this.init = function( options ) { var me = this; // default options var defaultOptions = { widgetName: ' Enhancedgrid', render: true, // immediately render the grid draggable: true, // disables column dragging containerNode: false, // the Node to hold the Grid (optional) mashupUrl: false, // the URL of the mashup (required) rowsPerPage: 20, //Default number of items per page columns: false, // columns (required) width: "100%", // width of grid height: "100%", // height of grid rowClass: function (rowData) {}, onClick: function () {}, headerMenu: false, // adding a menu pop-up for the header. selectedRegionMenu: false, // adding a menu pop-up for the rows. menusObject: false, //object to start-up the menus using the plug-in. sortInfo: false, // The column default sort infiniteScrolling: false //If true, the enhanced grid will have an infinite scrolling. }; // merge user provided options me.options = jQuery.extend( {}, defaultOptions, options ); // check we have minimum required options if ( ! me.options.mashupUrl ){ throw ("You must supply a mashupUrl"); } if ( ! me.options.columns ){ throw ("You must supply columns"); } // make the column for formatting based on its data type. me.preProcessColumns(); // create the Contextual Menu me.createMenu(); // create the grid object and return me.createGrid(); }; // Loading the data to the grid. this.loadData = function () { var me = this; if (!me.options.infiniteScrolling) { var xhrArgs = { url: me.options.mashupUrl, handleAs: "json", load: function( data ){ var store = new dojo.data.ItemFileReadStore({ data : {items : eval( "data."+me.options.dataRoot)}}); store.fetch({ onComplete : function(items, request) { if (me.grid.selection !== null) { me.grid.selection.clear(); } me.grid.setStore(store); }, onError : function(error) { me.onError(error); } }); }, error: function (error) { me.onError(error); } }; dojo.xhrGet(xhrArgs); } else { dojo.declare('NotificationQueryReadStore', dojox.data.QueryReadStore, { // // hacked -- override to map to proper data structure // from mashup // _xhrFetchHandler : function(data, request, fetchHandler, errorHandler) { // // TODO: need to have error handling here when // data has "error" data structure // // // remap data object before process by super method // var dataRoot = eval ("data."+me.options.dataRoot); var dataTotal = eval ("data."+me.options.dataTotal); data = { numRows : dataTotal, items : dataRoot }; // call to super method to process mapped data and // set rowcount // for proper display this.inherited(arguments); } }); var queryStore = new NotificationQueryReadStore({ url : me.options.mashupUrl, urlPreventCache: true, requestMethod : "get", onError: function (error) { me.onError(error); } }); me.grid.setStore(queryStore); } }; this.preProcessColumns = function () { var me = this; var options = me.options; for (i=0;i<this.options.columns.length;i++) { if (this.options.columns[i].formatter==null) { switch (this.options.columns[i].datatype) { case "string": this.options.columns[i].formatter = me.formatString; break; case "date": this.options.columns[i].formatter = me.formatDate; var todayDate = new Date(); var gmtTime = c.util.Date.parseDate(todayDate.toString()).toString(); var gmtval = gmtTime.substring(gmtTime.indexOf('GMT'),(gmtTime.indexOf('(')-1)); this.options.columns[i].name = this.options.columns[i].name + " ("+gmtval+")"; } } if (this.options.columns[i].sortDefault) { me.options.sortInfo = i+1; } } }; // create GRID object using supplied options this.createGrid = function () { var me = this; var options = me.options; // create a new grid this.grid = new dojox.grid.EnhancedGrid ({ width: options.width, height: options.height, query: { id: "*" }, keepSelection: true, formatterScope: this, structure: options.columns, columnReordering: options.draggable, rowsPerPage: options.rowsPerPage, //sortInfo: options.sortInfo, plugins : { menus: options.menusObject, selector: {"row":"multi", "cell": "disabled" }, }, //Allow the user to decide if a column is sortable by setting sortable = true / false canSort: function(col) { if (options.columns[Math.abs(col)-1].sortable) return true; else return false; }, //Change the row colors depending on severity column. onStyleRow: function (row) { var grid = me.grid; var item = grid.getItem(row.index); if (item && options.rowClass(item)) { row.customClasses += " " +options.rowClass(item); if (grid.selection.selectedIndex == row.index) { row.customClasses += " dojoxGridRowSelected"; } grid.focus.styleRow(row); grid.edit.styleRow(row); } }, onCellMouseOver: function (e){ // var pos = dojo.position(this, true); // alert(pos); console.log( e.rowIndex +" cell node :"+ e.cellNode.innerHTML); // var pos = dojo.position(this, true); console.log( " pos :"+ e.pos); if (e.cellNode.innerHTML!="") { dijit.showTooltip(e.cellNode.innerHTML, e.cellNode); } }, onCellMouseOut: function (e){ dijit.hideTooltip(e.cellNode); }, onHeaderCellMouseOver: function (e){ if (e.cellNode.innerHTML!="") { dijit.showTooltip(e.cellNode.innerHTML, e.cellNode); } }, onHeaderCellMouseOut: function (e){ dijit.hideTooltip(e.cellNode); }, }); // ADDED CODE FOR TOOLTIP var gridTooltip = new Tooltip({ connectId: "grid1", selector: "td", position: ["above"], getContent: function(matchedNode){ var childNode = matchedNode.childNodes[0]; if(childNode.nodeType == 1 && childNode.className == "user") { this.position = ["after"]; this.open(childNode); return false; } if(matchedNode.className && matchedNode.className == "user") { this.position = ["after"]; } else { this.position = ["above"]; } return matchedNode.textContent; } }); ... //Construct the grid this.buildGrid = function(){ var datagrid = new com.emc.widget.EnhancedGrid(this,{ Url: "/dge/api/-resultFormat=json&id="+encodeURIComponent(idUrl), dataRoot: "Root.ATrail", height: '100%', columns: [ { name: 'Time', field: 'Time', width: '20%', datatype: 'date', sortable: true, searchable: true, hidden: false}, { name: 'Type', field: 'Type', width: '20%', datatype: 'string', sortable: true, searchable: true, hidden: false}, { name: 'User ID', field: 'UserID', width: '20%', datatype: 'string', sortable: true, searchable: true, hidden: false } ] }); this.grid = datagrid; };

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  • Rtsp Live Stream Android

    - by Filiz Gökçe
    I try to make live stream on android, I try lots of ways, but none of them doesnt work. Could you help me ? This is example of rtsp; mMediaPlayer = new MediaPlayer(); mMediaPlayer.setDataSource(KralStream.getTvStreamUrl().toString()); mMediaPlayer.setDisplay(holder); mMediaPlayer.prepareAsync(); mMediaPlayer.setOnBufferingUpdateListener(this); mMediaPlayer.setOnCompletionListener(this); mMediaPlayer.setOnPreparedListener(this); mMediaPlayer.setOnVideoSizeChangedListener(this); mMediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC); mMediaPlayer.setLooping(true); Exeption :05-26 10:22:46.186: ERROR/MediaPlayerService(10157): create PVPlayer 05-26 10:23:06.382: ERROR/PlayerDriver(10157): Command PLAYER_INIT completed with an error or info -1 05-26 10:23:06.382: ERROR/MediaPlayer(23800): error (1, -1) 05-26 10:23:06.382: ERROR/MediaPlayer(23800): Error (1,-1) rtsp; VideoView videoView=(VideoView)findViewById(R.id.videoView1); Uri uri = Uri.parse("rtsp://strm-3.tr.medianova.tv/rkraltv/rkraltv"); videoView.setVideoURI(uri); videoView.start(); Gives message;"Sorry, this video connot ve played." Exeptions;05-26 10:40:08.979: ERROR/MediaPlayerService(10157): create PVPlayer 05-26 10:40:09.188: INFO/ActivityManager(10163): Displayed activity com.giantrabbit.nagare/.KralTvNow: 433 ms (total 433 ms) 05-26 10:40:11.702: WARN/PowerManagerService(10163): Timer 0x3-0x3|0x1 05-26 10:40:29.061: WARN/MediaPlayer(24284): info/warning (1, 26) 05-26 10:40:29.061: INFO/MediaPlayer(24284): Info (1,26) 05-26 10:40:29.100: ERROR/PlayerDriver(10157): Command PLAYER_INIT completed with an error or info -1 05-26 10:40:29.104: ERROR/MediaPlayer(24284): error (1, -1) 05-26 10:40:29.108: ERROR/MediaPlayer(24284): Error (1,-1) rtsp; mPreview = (SurfaceView) findViewById(R.id.surface); holder = mPreview.getHolder(); holder.addCallback(this); holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); extras = getIntent().getExtras(); public void play() { try { Uri video = KralStream.getTvStreamUrl(); Toast.makeText(this, video.toString(), Toast.LENGTH_SHORT).show(); mMediaPlayer = new MediaPlayer(); mMediaPlayer.setDataSource(path); mMediaPlayer.setDisplay(holder); mMediaPlayer.prepare(); mMediaPlayer.setOnBufferingUpdateListener(this); mMediaPlayer.setOnCompletionListener(this); mMediaPlayer.setOnPreparedListener(this); mMediaPlayer.setOnVideoSizeChangedListener(this); mMediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC); } catch (Exception e) { Log.e(TAG, "error: " + e.getMessage(), e); } } Exeption ; 05-26 10:36:57.589: ERROR/MediaPlayerService(10157): create PVPlayer 05-26 10:37:20.542: ERROR/PlayerDriver(10157): Command PLAYER_INIT completed with an error or info -1 05-26 10:37:20.542: ERROR/MediaPlayer(24240): error (1, -1) 05-26 10:37:20.565: WARN/PlayerDriver(10157): PVMFInfoErrorHandlingComplete 05-26 10:37:20.682: ERROR/MediaPlayerDemo(24240): error: Prepare failed.: status=0x1 05-26 10:37:20.682: ERROR/MediaPlayerDemo(24240): java.io.IOException: Prepare failed.: status=0x1 05-26 10:37:20.682: ERROR/MediaPlayerDemo(24240): at android.media.MediaPlayer.prepare(Native Method) 05-26 10:37:20.682: ERROR/MediaPlayerDemo(24240): at com.giantrabbit.nagare.KralTvNow.play(KralTvNow.java:162) 05-26 10:37:20.682: ERROR/MediaPlayerDemo(24240): at com.giantrabbit.nagare.KralTvNow.surfaceCreated(KralTvNow.java:215) 05-26 10:37:20.682: ERROR/MediaPlayerDemo(24240): at android.view.SurfaceView.updateWindow(SurfaceView.java:536) 05-26 10:37:20.682: ERROR/MediaPlayerDemo(24240): at android.view.SurfaceView.dispatchDraw(SurfaceView.java:339) 05-26 10:37:20.682: ERROR/MediaPlayerDemo(24240): at android.view.ViewGroup.drawChild(ViewGroup.java:1638) 05-26 10:37:20.682: ERROR/MediaPlayerDemo(24240): at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1367) 05-26 10:37:20.682: ERROR/MediaPlayerDemo(24240): at android.view.ViewGroup.drawChild(ViewGroup.java:1638) 05-26 10:37:20.682: ERROR/MediaPlayerDemo(24240): at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1367) 05-26 10:37:20.682: ERROR/MediaPlayerDemo(24240): at android.view.View.draw(View.java:6796) 05-26 10:37:20.682: ERROR/MediaPlayerDemo(24240): at android.widget.FrameLayout.draw(FrameLayout.java:352) 05-26 10:37:20.682: ERROR/MediaPlayerDemo(24240): at android.view.ViewGroup.drawChild(ViewGroup.java:1640) 05-26 10:37:20.682: ERROR/MediaPlayerDemo(24240): at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1367) 05-26 10:37:20.682: ERROR/MediaPlayerDemo(24240): at android.view.View.draw(View.java:6796) 05-26 10:37:20.682: ERROR/MediaPlayerDemo(24240): at android.widget.FrameLayout.draw(FrameLayout.java:352) 05-26 10:37:20.682: ERROR/MediaPlayerDemo(24240): at com.android.internal.policy.impl.PhoneWindow$DecorView.draw(PhoneWindow.java:1894) 05-26 10:37:20.682: ERROR/MediaPlayerDemo(24240): at android.view.ViewRoot.draw(ViewRoot.java:1407) 05-26 10:37:20.682: ERROR/MediaPlayerDemo(24240): at android.view.ViewRoot.performTraversals(ViewRoot.java:1163) 05-26 10:37:20.682: ERROR/MediaPlayerDemo(24240): at android.view.ViewRoot.handleMessage(ViewRoot.java:1727) 05-26 10:37:20.682: ERROR/MediaPlayerDemo(24240): at android.os.Handler.dispatchMessage(Handler.java:99) 05-26 10:37:20.682: ERROR/MediaPlayerDemo(24240): at android.os.Looper.loop(Looper.java:123) 05-26 10:37:20.682: ERROR/MediaPlayerDemo(24240): at android.app.ActivityThread.main(ActivityThread.java:4627) 05-26 10:37:20.682: ERROR/MediaPlayerDemo(24240): at java.lang.reflect.Method.invokeNative(Native Method) 05-26 10:37:20.682: ERROR/MediaPlayerDemo(24240): at java.lang.reflect.Method.invoke(Method.java:521) 05-26 10:37:20.682: ERROR/MediaPlayerDemo(24240): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:871) 05-26 10:37:20.682: ERROR/MediaPlayerDemo(24240): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:629) 05-26 10:37:20.682: ERROR/MediaPlayerDemo(24240): at dalvik.system.NativeStart.main(Native Method) 05-26 10:37:20.737: INFO/MediaPlayer(24240): Info (1,26) 05-26 10:37:20.737: ERROR/MediaPlayer(24240): Error (1,-1) 05-26 10:37:20.868: INFO/ActivityManager(10163): Displayed activity com.giantrabbit.nagare/.KralTvNow: 25864 ms (total 25864 ms) 05-26 10:37:23.777: WARN/PowerManagerService(10163): Timer 0x3-0x3|0x1 This is example of http ; mMediaPlayer = new MediaPlayer(); mMediaPlayer.setDataSource("http://ikral.garantisistem.com:1935/ikral/smil:kral.smil/playlist.m3u8"); mMediaPlayer.setDisplay(holder); mMediaPlayer.prepareAsync(); mMediaPlayer.setOnBufferingUpdateListener(this); mMediaPlayer.setOnCompletionListener(this); mMediaPlayer.setOnPreparedListener(this); mMediaPlayer.setOnVideoSizeChangedListener(this); mMediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC); mMediaPlayer.setLooping(true); Exeption: 05-26 10:16:24.276: ERROR/MediaPlayerService(10157): create PVPlayer 05-26 10:16:24.292: ERROR/(10157): IIIIIII Inside Constructor of PVMFMemoryBufferWriteDataStreamImpl 05-26 10:16:24.346: INFO/PlayerDriver(10157): buffering (100) 05-26 10:16:24.346: ERROR/(10157): IIIIIII Inside Constructor of PVMFMemoryBufferReadDataStreamImpl 05-26 10:16:24.346: ERROR/(10157): IIIIIII Inside Constructor of PVMFMemoryBufferReadDataStreamImpl 05-26 10:16:24.346: ERROR/(10157): IIIIIII Inside Constructor of PVMFMemoryBufferReadDataStreamImpl 05-26 10:16:24.346: ERROR/(10157): IIIIIII Inside Constructor of PVMFMemoryBufferReadDataStreamImpl 05-26 10:16:24.346: ERROR/(10157): IIIIIII Inside Constructor of PVMFMemoryBufferReadDataStreamImpl 05-26 10:16:24.346: ERROR/(10157): IIIIIII Inside Constructor of PVMFMemoryBufferReadDataStreamImpl 05-26 10:16:24.346: ERROR/(10157): IIIIIII Inside Constructor of PVMFMemoryBufferReadDataStreamImpl 05-26 10:16:24.346: ERROR/(10157): IIIIIII Inside Constructor of PVMFMemoryBufferReadDataStreamImpl 05-26 10:16:24.346: ERROR/(10157): IIIIIII Inside Constructor of PVMFMemoryBufferReadDataStreamImpl 05-26 10:16:24.346: ERROR/(10157): IIIIIII Inside Constructor of PVMFMemoryBufferReadDataStreamImpl 05-26 10:16:24.346: ERROR/(10157): IIIIIII Inside Constructor of PVMFMemoryBufferReadDataStreamImpl 05-26 10:16:24.346: ERROR/(10157): IIIIIII Inside Constructor of PVMFMemoryBufferReadDataStreamImpl 05-26 10:16:24.350: WARN/MediaPlayer(23736): info/warning (1, 26) 05-26 10:16:24.354: ERROR/PlayerDriver(10157): Command PLAYER_INIT completed with an error or info -10 05-26 10:16:24.354: ERROR/MediaPlayer(23736): error (-10, -10) 05-26 10:16:24.354: WARN/PlayerDriver(10157): PVMFInfoErrorHandlingComplete 05-26 10:16:24.393: INFO/MediaPlayer(23736): Info (1,26) 05-26 10:16:24.393: ERROR/MediaPlayer(23736): Error (-10,-10) Htttp; VideoView videoView=(VideoView)findViewById(R.id.videoView1); Uri uri = Uri.parse("http://ikral.garantisistem.com:1935/ikral/smil:kral.smil/playlist.m3u8"); videoView.setVideoURI(uri); videoView.start(); Gives message;"Sorry, this video connot ve played." Filiz Gökçe

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  • Using HTML 5 SessionState to save rendered Page Content

    - by Rick Strahl
    HTML 5 SessionState and LocalStorage are very useful and super easy to use to manage client side state. For building rich client side or SPA style applications it's a vital feature to be able to cache user data as well as HTML content in order to swap pages in and out of the browser's DOM. What might not be so obvious is that you can also use the sessionState and localStorage objects even in classic server rendered HTML applications to provide caching features between pages. These APIs have been around for a long time and are supported by most relatively modern browsers and even all the way back to IE8, so you can use them safely in your Web applications. SessionState and LocalStorage are easy The APIs that make up sessionState and localStorage are very simple. Both object feature the same API interface which  is a simple, string based key value store that has getItem, setItem, removeitem, clear and  key methods. The objects are also pseudo array objects and so can be iterated like an array with  a length property and you have array indexers to set and get values with. Basic usage  for storing and retrieval looks like this (using sessionStorage, but the syntax is the same for localStorage - just switch the objects):// set var lastAccess = new Date().getTime(); if (sessionStorage) sessionStorage.setItem("myapp_time", lastAccess.toString()); // retrieve in another page or on a refresh var time = null; if (sessionStorage) time = sessionStorage.getItem("myapp_time"); if (time) time = new Date(time * 1); else time = new Date(); sessionState stores data that is browser session specific and that has a liftetime of the active browser session or window. Shut down the browser or tab and the storage goes away. localStorage uses the same API interface, but the lifetime of the data is permanently stored in the browsers storage area until deleted via code or by clearing out browser cookies (not the cache). Both sessionStorage and localStorage space is limited. The spec is ambiguous about this - supposedly sessionStorage should allow for unlimited size, but it appears that most WebKit browsers support only 2.5mb for either object. This means you have to be careful what you store especially since other applications might be running on the same domain and also use the storage mechanisms. That said 2.5mb worth of character data is quite a bit and would go a long way. The easiest way to get a feel for how sessionState and localStorage work is to look at a simple example. You can go check out the following example online in Plunker: http://plnkr.co/edit/0ICotzkoPjHaWa70GlRZ?p=preview which looks like this: Plunker is an online HTML/JavaScript editor that lets you write and run Javascript code and similar to JsFiddle, but a bit cleaner to work in IMHO (thanks to John Papa for turning me on to it). The sample has two text boxes with counts that update session/local storage every time you click the related button. The counts are 'cached' in Session and Local storage. The point of these examples is that both counters survive full page reloads, and the LocalStorage counter survives a complete browser shutdown and restart. Go ahead and try it out by clicking the Reload button after updating both counters and then shutting down the browser completely and going back to the same URL (with the same browser). What you should see is that reloads leave both counters intact at the counted values, while a browser restart will leave only the local storage counter intact. The code to deal with the SessionStorage (and LocalStorage not shown here) in the example is isolated into a couple of wrapper methods to simplify the code: function getSessionCount() { var count = 0; if (sessionStorage) { var count = sessionStorage.getItem("ss_count"); count = !count ? 0 : count * 1; } $("#txtSession").val(count); return count; } function setSessionCount(count) { if (sessionStorage) sessionStorage.setItem("ss_count", count.toString()); } These two functions essentially load and store a session counter value. The two key methods used here are: sessionStorage.getItem(key); sessionStorage.setItem(key,stringVal); Note that the value given to setItem and return by getItem has to be a string. If you pass another type you get an error. Don't let that limit you though - you can easily enough store JSON data in a variable so it's quite possible to pass complex objects and store them into a single sessionStorage value:var user = { name: "Rick", id="ricks", level=8 } sessionStorage.setItem("app_user",JSON.stringify(user)); to retrieve it:var user = sessionStorage.getItem("app_user"); if (user) user = JSON.parse(user); Simple! If you're using the Chrome Developer Tools (F12) you can also check out the session and local storage state on the Resource tab:   You can also use this tool to refresh or remove entries from storage. What we just looked at is a purely client side implementation where a couple of counters are stored. For rich client centric AJAX applications sessionStorage and localStorage provide a very nice and simple API to store application state while the application is running. But you can also use these storage mechanisms to manage server centric HTML applications when you combine server rendering with some JavaScript to perform client side data caching. You can both store some state information and data on the client (ie. store a JSON object and carry it forth between server rendered HTML requests) or you can use it for good old HTTP based caching where some rendered HTML is saved and then restored later. Let's look at the latter with a real life example. Why do I need Client-side Page Caching for Server Rendered HTML? I don't know about you, but in a lot of my existing server driven applications I have lists that display a fair amount of data. Typically these lists contain links to then drill down into more specific data either for viewing or editing. You can then click on a link and go off to a detail page that provides more concise content. So far so good. But now you're done with the detail page and need to get back to the list, so you click on a 'bread crumbs trail' or an application level 'back to list' button and… …you end up back at the top of the list - the scroll position, the current selection in some cases even filters conditions - all gone with the wind. You've left behind the state of the list and are starting from scratch in your browsing of the list from the top. Not cool! Sound familiar? This a pretty common scenario with server rendered HTML content where it's so common to display lists to drill into, only to lose state in the process of returning back to the original list. Look at just about any traditional forums application, or even StackOverFlow to see what I mean here. Scroll down a bit to look at a post or entry, drill in then use the bread crumbs or tab to go back… In some cases returning to the top of a list is not a big deal. On StackOverFlow that sort of works because content is turning around so quickly you probably want to actually look at the top posts. Not always though - if you're browsing through a list of search topics you're interested in and drill in there's no way back to that position. Essentially anytime you're actively browsing the items in the list, that's when state becomes important and if it's not handled the user experience can be really disrupting. Content Caching If you're building client centric SPA style applications this is a fairly easy to solve problem - you tend to render the list once and then update the page content to overlay the detail content, only hiding the list temporarily until it's used again later. It's relatively easy to accomplish this simply by hiding content on the page and later making it visible again. But if you use server rendered content, hanging on to all the detail like filters, selections and scroll position is not quite as easy. Or is it??? This is where sessionStorage comes in handy. What if we just save the rendered content of a previous page, and then restore it when we return to this page based on a special flag that tells us to use the cached version? Let's see how we can do this. A real World Use Case Recently my local ISP asked me to help out with updating an ancient classifieds application. They had a very busy, local classifieds app that was originally an ASP classic application. The old app was - wait for it: frames based - and even though I lobbied against it, the decision was made to keep the frames based layout to allow rapid browsing of the hundreds of posts that are made on a daily basis. The primary reason they wanted this was precisely for the ability to quickly browse content item by item. While I personally hate working with Frames, I have to admit that the UI actually works well with the frames layout as long as you're running on a large desktop screen. You can check out the frames based desktop site here: http://classifieds.gorge.net/ However when I rebuilt the app I also added a secondary view that doesn't use frames. The main reason for this of course was for mobile displays which work horribly with frames. So there's a somewhat mobile friendly interface to the interface, which ditches the frames and uses some responsive design tweaking for mobile capable operation: http://classifeds.gorge.net/mobile  (or browse the base url with your browser width under 800px)   Here's what the mobile, non-frames view looks like:   As you can see this means that the list of classifieds posts now is a list and there's a separate page for drilling down into the item. And of course… originally we ran into that usability issue I mentioned earlier where the browse, view detail, go back to the list cycle resulted in lost list state. Originally in mobile mode you scrolled through the list, found an item to look at and drilled in to display the item detail. Then you clicked back to the list and BAM - you've lost your place. Because there are so many items added on a daily basis the full list is never fully loaded, but rather there's a "Load Additional Listings"  entry at the button. Not only did we originally lose our place when coming back to the list, but any 'additionally loaded' items are no longer there because the list was now rendering  as if it was the first page hit. The additional listings, and any filters, the selection of an item all were lost. Major Suckage! Using Client SessionStorage to cache Server Rendered Content To work around this problem I decided to cache the rendered page content from the list in SessionStorage. Anytime the list renders or is updated with Load Additional Listings, the page HTML is cached and stored in Session Storage. Any back links from the detail page or the login or write entry forms then point back to the list page with a back=true query string parameter. If the server side sees this parameter it doesn't render the part of the page that is cached. Instead the client side code retrieves the data from the sessionState cache and simply inserts it into the page. It sounds pretty simple, and the overall the process is really easy, but there are a few gotchas that I'll discuss in a minute. But first let's look at the implementation. Let's start with the server side here because that'll give a quick idea of the doc structure. As I mentioned the server renders data from an ASP.NET MVC view. On the list page when returning to the list page from the display page (or a host of other pages) looks like this: https://classifieds.gorge.net/list?back=True The query string value is a flag, that indicates whether the server should render the HTML. Here's what the top level MVC Razor view for the list page looks like:@model MessageListViewModel @{ ViewBag.Title = "Classified Listing"; bool isBack = !string.IsNullOrEmpty(Request.QueryString["back"]); } <form method="post" action="@Url.Action("list")"> <div id="SizingContainer"> @if (!isBack) { @Html.Partial("List_CommandBar_Partial", Model) <div id="PostItemContainer" class="scrollbox" xstyle="-webkit-overflow-scrolling: touch;"> @Html.Partial("List_Items_Partial", Model) @if (Model.RequireLoadEntry) { <div class="postitem loadpostitems" style="padding: 15px;"> <div id="LoadProgress" class="smallprogressright"></div> <div class="control-progress"> Load additional listings... </div> </div> } </div> } </div> </form> As you can see the query string triggers a conditional block that if set is simply not rendered. The content inside of #SizingContainer basically holds  the entire page's HTML sans the headers and scripts, but including the filter options and menu at the top. In this case this makes good sense - in other situations the fact that the menu or filter options might be dynamically updated might make you only cache the list rather than essentially the entire page. In this particular instance all of the content works and produces the proper result as both the list along with any filter conditions in the form inputs are restored. Ok, let's move on to the client. On the client there are two page level functions that deal with saving and restoring state. Like the counter example I showed earlier, I like to wrap the logic to save and restore values from sessionState into a separate function because they are almost always used in several places.page.saveData = function(id) { if (!sessionStorage) return; var data = { id: id, scroll: $("#PostItemContainer").scrollTop(), html: $("#SizingContainer").html() }; sessionStorage.setItem("list_html",JSON.stringify(data)); }; page.restoreData = function() { if (!sessionStorage) return; var data = sessionStorage.getItem("list_html"); if (!data) return null; return JSON.parse(data); }; The data that is saved is an object which contains an ID which is the selected element when the user clicks and a scroll position. These two values are used to reset the scroll position when the data is used from the cache. Finally the html from the #SizingContainer element is stored, which makes for the bulk of the document's HTML. In this application the HTML captured could be a substantial bit of data. If you recall, I mentioned that the server side code renders a small chunk of data initially and then gets more data if the user reads through the first 50 or so items. The rest of the items retrieved can be rather sizable. Other than the JSON deserialization that's Ok. Since I'm using SessionStorage the storage space has no immediate limits. Next is the core logic to handle saving and restoring the page state. At first though this would seem pretty simple, and in some cases it might be, but as the following code demonstrates there are a few gotchas to watch out for. Here's the relevant code I use to save and restore:$( function() { … var isBack = getUrlEncodedKey("back", location.href); if (isBack) { // remove the back key from URL setUrlEncodedKey("back", "", location.href); var data = page.restoreData(); // restore from sessionState if (!data) { // no data - force redisplay of the server side default list window.location = "list"; return; } $("#SizingContainer").html(data.html); var el = $(".postitem[data-id=" + data.id + "]"); $(".postitem").removeClass("highlight"); el.addClass("highlight"); $("#PostItemContainer").scrollTop(data.scroll); setTimeout(function() { el.removeClass("highlight"); }, 2500); } else if (window.noFrames) page.saveData(null); // save when page loads $("#SizingContainer").on("click", ".postitem", function() { var id = $(this).attr("data-id"); if (!id) return true; if (window.noFrames) page.saveData(id); var contentFrame = window.parent.frames["Content"]; if (contentFrame) contentFrame.location.href = "show/" + id; else window.location.href = "show/" + id; return false; }); … The code starts out by checking for the back query string flag which triggers restoring from the client cache. If cached the cached data structure is read from sessionStorage. It's important here to check if data was returned. If the user had back=true on the querystring but there is no cached data, he likely bookmarked this page or otherwise shut down the browser and came back to this URL. In that case the server didn't render any detail and we have no cached data, so all we can do is redirect to the original default list view using window.location. If we continued the page would render no data - so make sure to always check the cache retrieval result. Always! If there is data the it's loaded and the data.html data is restored back into the document by simply injecting the HTML back into the document's #SizingContainer element:$("#SizingContainer").html(data.html); It's that simple and it's quite quick even with a fully loaded list of additional items and on a phone. The actual HTML data is stored to the cache on every page load initially and then again when the user clicks on an element to navigate to a particular listing. The former ensures that the client cache always has something in it, and the latter updates with additional information for the selected element. For the click handling I use a data-id attribute on the list item (.postitem) in the list and retrieve the id from that. That id is then used to navigate to the actual entry as well as storing that Id value in the saved cached data. The id is used to reset the selection by searching for the data-id value in the restored elements. The overall process of this save/restore process is pretty straight forward and it doesn't require a bunch of code, yet it yields a huge improvement in the usability of the site on mobile devices (or anybody who uses the non-frames view). Some things to watch out for As easy as it conceptually seems to simply store and retrieve cached content, you have to be quite aware what type of content you are caching. The code above is all that's specific to cache/restore cycle and it works, but it took a few tweaks to the rest of the script code and server code to make it all work. There were a few gotchas that weren't immediately obvious. Here are a few things to pay attention to: Event Handling Logic Timing of manipulating DOM events Inline Script Code Bookmarking to the Cache Url when no cache exists Do you have inline script code in your HTML? That script code isn't going to run if you restore from cache and simply assign or it may not run at the time you think it would normally in the DOM rendering cycle. JavaScript Event Hookups The biggest issue I ran into with this approach almost immediately is that originally I had various static event handlers hooked up to various UI elements that are now cached. If you have an event handler like:$("#btnSearch").click( function() {…}); that works fine when the page loads with server rendered HTML, but that code breaks when you now load the HTML from cache. Why? Because the elements you're trying to hook those events to may not actually be there - yet. Luckily there's an easy workaround for this by using deferred events. With jQuery you can use the .on() event handler instead:$("#SelectionContainer").on("click","#btnSearch", function() {…}); which monitors a parent element for the events and checks for the inner selector elements to handle events on. This effectively defers to runtime event binding, so as more items are added to the document bindings still work. For any cached content use deferred events. Timing of manipulating DOM Elements Along the same lines make sure that your DOM manipulation code follows the code that loads the cached content into the page so that you don't manipulate DOM elements that don't exist just yet. Ideally you'll want to check for the condition to restore cached content towards the top of your script code, but that can be tricky if you have components or other logic that might not all run in a straight line. Inline Script Code Here's another small problem I ran into: I use a DateTime Picker widget I built a while back that relies on the jQuery date time picker. I also created a helper function that allows keyboard date navigation into it that uses JavaScript logic. Because MVC's limited 'object model' the only way to embed widget content into the page is through inline script. This code broken when I inserted the cached HTML into the page because the script code was not available when the component actually got injected into the page. As the last bullet - it's a matter of timing. There's no good work around for this - in my case I pulled out the jQuery date picker and relied on native <input type="date" /> logic instead - a better choice these days anyway, especially since this view is meant to be primarily to serve mobile devices which actually support date input through the browser (unlike desktop browsers of which only WebKit seems to support it). Bookmarking Cached Urls When you cache HTML content you have to make a decision whether you cache on the client and also not render that same content on the server. In the Classifieds app I didn't render server side content so if the user comes to the page with back=True and there is no cached content I have to a have a Plan B. Typically this happens when somebody ends up bookmarking the back URL. The easiest and safest solution for this scenario is to ALWAYS check the cache result to make sure it exists and if not have a safe URL to go back to - in this case to the plain uncached list URL which amounts to effectively redirecting. This seems really obvious in hindsight, but it's easy to overlook and not see a problem until much later, when it's not obvious at all why the page is not rendering anything. Don't use <body> to replace Content Since we're practically replacing all the HTML in the page it may seem tempting to simply replace the HTML content of the <body> tag. Don't. The body tag usually contains key things that should stay in the page and be there when it loads. Specifically script tags and elements and possibly other embedded content. It's best to create a top level DOM element specifically as a placeholder container for your cached content and wrap just around the actual content you want to replace. In the app above the #SizingContainer is that container. Other Approaches The approach I've used for this application is kind of specific to the existing server rendered application we're running and so it's just one approach you can take with caching. However for server rendered content caching this is a pattern I've used in a few apps to retrofit some client caching into list displays. In this application I took the path of least resistance to the existing server rendering logic. Here are a few other ways that come to mind: Using Partial HTML Rendering via AJAXInstead of rendering the page initially on the server, the page would load empty and the client would render the UI by retrieving the respective HTML and embedding it into the page from a Partial View. This effectively makes the initial rendering and the cached rendering logic identical and removes the server having to decide whether this request needs to be rendered or not (ie. not checking for a back=true switch). All the logic related to caching is made on the client in this case. Using JSON Data and Client RenderingThe hardcore client option is to do the whole UI SPA style and pull data from the server and then use client rendering or databinding to pull the data down and render using templates or client side databinding with knockout/angular et al. As with the Partial Rendering approach the advantage is that there's no difference in the logic between pulling the data from cache or rendering from scratch other than the initial check for the cache request. Of course if the app is a  full on SPA app, then caching may not be required even - the list could just stay in memory and be hidden and reactivated. I'm sure there are a number of other ways this can be handled as well especially using  AJAX. AJAX rendering might simplify the logic, but it also complicates search engine optimization since there's no content loaded initially. So there are always tradeoffs and it's important to look at all angles before deciding on any sort of caching solution in general. State of the Session SessionState and LocalStorage are easy to use in client code and can be integrated even with server centric applications to provide nice caching features of content and data. In this post I've shown a very specific scenario of storing HTML content for the purpose of remembering list view data and state and making the browsing experience for lists a bit more friendly, especially if there's dynamically loaded content involved. If you haven't played with sessionStorage or localStorage I encourage you to give it a try. There's a lot of cool stuff that you can do with this beyond the specific scenario I've covered here… Resources Overview of localStorage (also applies to sessionStorage) Web Storage Compatibility Modernizr Test Suite© Rick Strahl, West Wind Technologies, 2005-2013Posted in JavaScript  HTML5  ASP.NET  MVC   Tweet !function(d,s,id){var js,fjs=d.getElementsByTagName(s)[0];if(!d.getElementById(id)){js=d.createElement(s);js.id=id;js.src="//platform.twitter.com/widgets.js";fjs.parentNode.insertBefore(js,fjs);}}(document,"script","twitter-wjs"); (function() { var po = document.createElement('script'); po.type = 'text/javascript'; po.async = true; po.src = 'https://apis.google.com/js/plusone.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(po, s); })();

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  • Info on UIDeviceFamily key in Info.plist

    - by dbv
    The iPad programming guide says I have to include the UIDeviceFamily key in Info.plist. It also says that the transitioning a target to iPad should have added the key. It didn't. I tried creating blank projects, both iPad-only and universal, and neither got that key. Google comes up short too. What's the story on this mysterious key? The simulator doesn't mind the fact it's missing.

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  • How to Mock HttpWebRequest and HttpWebResponse using the Moq Framework?

    - by Nicholas
    How do you use the Moq Framework to Mock HttpWebRequest and HttpWebResponse in the following Unit Test? [Test] public void Verify_That_SiteMap_Urls_Are_Reachable() { // Arrange - simplified Uri uri = new Uri("http://www.google.com"); // Act HttpWebRequest request = (HttpWebRequest)WebRequest.Create(uri); HttpWebResponse response = (HttpWebResponse)request.GetResponse(); // Asset Assert.AreEqual("OK", response.StatusCode.ToString()); }

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  • WPF Login Screen

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    I have search on google about the login screens which are design in WPF , as I have to using one of the best login screen for my application, Is the any good login screen avaialble so that I can see them and choose one of them, I am having no idean about the good design of the login screen. Please help me, thanks in advance

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