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• Android Facebook SDK : post message without showing facebook page

  - by someone_ smiley

  I am trying to integrate Facebook to my Android app for social post. I have downloaded latest Facebook sdk from here and apply all setup require to post to facebook. Now i can post to facebook. But problem is that, when i run sample program from facebook sdk, a browser like page is open and user have to enter message himself there. but i dont want this page to showed up. i want a fixed message to post directly without opening facebook dialog box. But if there is noway to avoid this, please tell me how can i fixed certain part of message so that user can't modified it. Thanks in Advance Edit: this is message i got after using this project 04-10 11:44:34.691: I/dalvikvm(719): Failed resolving Lnet/xeomax/TestRocket/TestRocket; interface 22 'Lnet/xeomax/FBRocket/LoginListener;' 04-10 11:44:34.691: W/dalvikvm(719): Link of class 'Lnet/xeomax/TestRocket/TestRocket;' failed 04-10 11:44:34.691: D/AndroidRuntime(719): Shutting down VM 04-10 11:44:34.701: W/dalvikvm(719): threadid=1: thread exiting with uncaught exception (group=0x40015560) 04-10 11:44:34.781: E/AndroidRuntime(719): FATAL EXCEPTION: main 04-10 11:44:34.781: E/AndroidRuntime(719): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{net.xeomax.TestRocket/net.xeomax.TestRocket.TestRocket}: java.lang.ClassNotFoundException: net.xeomax.TestRocket.TestRocket in loader dalvik.system.PathClassLoader[/data/app/net.xeomax.TestRocket-1.apk] 04-10 11:44:34.781: E/AndroidRuntime(719): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1569) 04-10 11:44:34.781: E/AndroidRuntime(719): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1663) 04-10 11:44:34.781: E/AndroidRuntime(719): at android.app.ActivityThread.access$1500(ActivityThread.java:117) 04-10 11:44:34.781: E/AndroidRuntime(719): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:931) 04-10 11:44:34.781: E/AndroidRuntime(719): at android.os.Handler.dispatchMessage(Handler.java:99) 04-10 11:44:34.781: E/AndroidRuntime(719): at android.os.Looper.loop(Looper.java:130) 04-10 11:44:34.781: E/AndroidRuntime(719): at android.app.ActivityThread.main(ActivityThread.java:3683) 04-10 11:44:34.781: E/AndroidRuntime(719): at java.lang.reflect.Method.invokeNative(Native Method) 04-10 11:44:34.781: E/AndroidRuntime(719): at java.lang.reflect.Method.invoke(Method.java:507) 04-10 11:44:34.781: E/AndroidRuntime(719): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839) 04-10 11:44:34.781: E/AndroidRuntime(719): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597) 04-10 11:44:34.781: E/AndroidRuntime(719): at dalvik.system.NativeStart.main(Native Method) 04-10 11:44:34.781: E/AndroidRuntime(719): Caused by: java.lang.ClassNotFoundException: net.xeomax.TestRocket.TestRocket in loader dalvik.system.PathClassLoader[/data/app/net.xeomax.TestRocket-1.apk] 04-10 11:44:34.781: E/AndroidRuntime(719): at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:240) 04-10 11:44:34.781: E/AndroidRuntime(719): at java.lang.ClassLoader.loadClass(ClassLoader.java:551) 04-10 11:44:34.781: E/AndroidRuntime(719): at java.lang.ClassLoader.loadClass(ClassLoader.java:511) 04-10 11:44:34.781: E/AndroidRuntime(719): at android.app.Instrumentation.newActivity(Instrumentation.java:1021) 04-10 11:44:34.781: E/AndroidRuntime(719): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1561) 04-10 11:44:34.781: E/AndroidRuntime(719): ... 11 more

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• Contact Bubble EditText

  - by toobsco42

  I am trying to create contact bubbles in the MultiAutoCompleteTextView similiar to how it is implemented in the Google+ app. Below is a screen shot: . I have tried to extend the DynamicDrawableSpan class in order to get a spannable drawable in the background of a span of text public class BubbleSpan extends DynamicDrawableSpan { private Context c; public BubbleSpan(Context context) { super(); c = context; } @Override public Drawable getDrawable() { Resources res = c.getResources(); Drawable d = res.getDrawable(R.drawable.oval); d.setBounds(0, 0, 100, 20); return d; } } Where my oval.xml drawable is defined as so: <?xml version="1.0" encoding="utf-8"?> <shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="oval"> <solid android:color="#00000000"/> <stroke android:width="4dp" android:color="#99000000" android:dashWidth="4dp" android:dashGap="2dp" /> <padding android:left="7dp" android:top="7dp" android:right="7dp" android:bottom="7dp" /> <corners android:radius="4dp" /> </shape> In my Activity class that has the MulitAutoCompleteTextView, I set the bubble span like so: final Editable e = tv.getEditableText(); final SpannableStringBuilder sb = new SpannableStringBuilder(); sb.append("some sample text"); sb.setSpan(new BubbleSpan(getApplicationContext()), 0, 6, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); e.append(sb); However, instead of the oval shape displaying behind the first 6 characters in the string, the characters are not visible and there is no oval drawable in the background. If i change the BubbleSpan's getDrawable() method to use a .png instead of a shape drawable: public Drawable getDrawable() { Resources res = c.getResources(); Drawable d = res.getDrawable(android.R.drawable.bottom_bar); d.setBounds(0, 0, 100, 20); return d; } Then the .png will show up but the characters in the string that are a part of the span will not show up. How can I make it so that the characters in the span are displayed in the foreground, meanwhile a custom shape drawable gets displayed in the background? I attempted to also use an ImageSpan instead of subclassing DynamicDrawableSpan but was unsuccessful.

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• Hibernate Communications Link Failure in Hibernate Based Java Servlet application powered by MySQL

  - by Vatsala

  Let me describe my question - I have a Java application - Hibernate as the DB interfacing layer over MySQL. I get the communications link failure error in my application. The occurence of this error is a very specific case. I get this error , When I leave mysql server unattended for more than approximately 6 hours (i.e. when there are no queries issued to MySQL for more than approximately 6 hours). I am pasting a top 'exception' level description below, and adding a pastebin link for a detailed stacktrace description. javax.persistence.PersistenceException: org.hibernate.exception.JDBCConnectionException: Cannot open connection - Caused by: org.hibernate.exception.JDBCConnectionException: Cannot open connection - Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure - The last packet successfully received from the server was 1,274,868,181,212 milliseconds ago. The last packet sent successfully to the server was 0 milliseconds ago. - Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure - The last packet successfully received from the server was 1,274,868,181,212 milliseconds ago. The last packet sent successfully to the server was 0 milliseconds ago. - Caused by: java.net.ConnectException: Connection refused: connect the link to the pastebin for further investigation - http://pastebin.com/4KujAmgD What I understand from these exception statements is that MySQL is refusing to take in any connections after a period of idle/nil activity. I have been reading up a bit about this via google search, and came to know that one of the possible ways to overcome this is to set values for c3p0 properties as c3p0 comes bundled with Hibernate. Specifically, I read from here http://www.mchange.com/projects/c3p0/index.html that setting two properties idleConnectionTestPeriod and preferredTestQuery will solve this for me. But these values dont seem to have had an effect. Is this the correct approach to fixing this? If not, what is the right way to get over this? The following are related Communications Link Failure questions at stackoverflow.com, but I've not found a satisfactory answer in their answers. http://stackoverflow.com/questions/2121829/java-db-communications-link-failure http://stackoverflow.com/questions/298988/how-to-handle-communication-link-failure Note 1 - i dont get this error when I am using my application continuosly. Note 2 - I use JPA with Hibernate and hence my hibernate.dialect,etc hibernate properties reside within the persistence.xml in the META-INF folder (does that prevent the c3p0 properties from working?) edit - Here are the c3p0 parameters I tried out - select 1; 2

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• Postgresql: Implicit lock acquisition from foreign-key constraint evaluation

  - by fennec

  So, I'm being confused about foreign key constraint handling in Postgresql. (version 8.4.4, for what it's worth). We've got a couple of tables, mildly anonymized below: device: (id, blah, blah, blah, blah, blah x 50)… primary key on id whooooole bunch of other junk device_foo: (id, device_id, left, right) Foreign key (device_id) references device(id) on delete cascade; primary key on id btree index on 'left' and 'right' So I set out with two database windows to run some queries. db1> begin; lock table device in exclusive mode; db2> begin; update device_foo set left = left + 1; The db2 connection blocks. It seems odd to me that an update of the 'left' column on device_stuff should be affected by activity on the device table. But it is. In fact, if I go back to db1: db1> select * from device_stuff for update; *** deadlock occurs *** The pgsql log has the following: blah blah blah deadlock blah. CONTEXT: SQL statement "SELECT 1 FROM ONLY "public"."device" x WHERE "id" OPERATOR(pg_catalog.=) $1 FOR SHARE OF X: update device_foo set left = left + 1; I suppose I've got two issues: the first is that I don't understand the precise mechanism by which this sort of locking occurs. I have got a couple of useful queries to query pg_locks to see what sort of locks a statement invokes, but I haven't been able to observe this particular sort of locking when I run the update device_foo command in isolation. (Perhaps I'm doing something wrong, though.) I also can't find any documentation on the lock acquisition behavior of foreign-key constraint checks. All I have is a log message. Am I to infer from this that any change to a row will acquire an update lock on all the tables which it's foreign-keyed against? The second issue is that I'd like to find some way to make it not happen like that. I'm ending up with occasional deadlocks in the actual application. I'd like to be able to run big update statements that impact all rows on device_foo without acquiring a big lock on the device table. (There's a lot of access going on in the device table, and it's kind of an expensive lock to get.)

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• -(void)... does not work/appeal (iOS)

  - by user1012535

  Hi I've got a problem with my -(void) in my Xcode project for iOS. First of all here is the code ViewController.h #import <UIKit/UIKit.h> @interface ViewController : UIViewController { IBOutlet UIWebView *webview; IBOutlet UIActivityIndicatorView *active; UIAlertView *alert_start; UIAlertView *alert_error; } -(IBAction)tele_button:(id)sender; -(IBAction)mail_button:(id)sender; -(IBAction)web_button:(id)sender; -(IBAction)news_button:(id)sender; @end ViewController.m #import "ViewController.h" @implementation ViewController - (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; // Release any cached data, images, etc that aren't in use. } #pragma mark - View lifecycle - (void)viewDidLoad { [super viewDidLoad]; //Stop Bounce for WebView for (id subview in webview.subviews) if ([[subview class] isSubclassOfClass: [UIScrollView class]]) ((UIScrollView *)subview).bounces = NO; //First Start Alert [alert_start show]; NSLog(@"first alert"); NSString *start_alert = [[NSUserDefaults standardUserDefaults] objectForKey:@"alert_start"]; if(start_alert == nil) { [[NSUserDefaults standardUserDefaults] setValue:@"1" forKey:@"alert_start"]; [[NSUserDefaults standardUserDefaults] synchronize]; UIAlertView *alert_start = [[UIAlertView alloc] initWithTitle:@"iOptibelt" message:@"On some points this application need a internet connection." delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil]; [alert_start show]; [alert_start release]; } // Do any additional setup after loading the view, typically from a nib. [webview loadRequest:[NSURLRequest requestWithURL:[NSURL fileURLWithPath:[[NSBundle mainBundle] pathForResource:@"home-de" ofType:@"html"]isDirectory:NO]]]; NSLog(@"webview fertig"); } -(void)webViewDidStartLoad:(UIWebView *) webview { [UIApplication sharedApplication].networkActivityIndicatorVisible = YES; [active startAnimating]; NSLog(@"lade"); } -(void)webViewDidFinishLoad:(UIWebView *) webview { [UIApplication sharedApplication].networkActivityIndicatorVisible = NO; [active stopAnimating]; NSLog(@"fertig"); } -(void)webView: (UIWebView *) webview didFailLoadWithError:(NSError *)error{ NSLog(@"lade error"); UIAlertView *alert_error = [[UIAlertView alloc] initWithTitle:@"Error" message:@"Can't connect. Please check your internet Connection" delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil]; [alert_error show]; [alert_error release]; }; - (IBAction)tele_button:(id)sender{ NSLog(@"it's connected!"); //Local HTML Call Button NSURLRequest *theRequest = [NSURLRequest requestWithURL:[NSURL fileURLWithPath:[[NSBundle mainBundle] pathForResource:@"phone" ofType:@"html"]isDirectory:NO]]; [webview loadRequest:theRequest]; } - (IBAction)mail_button:(id)sender{ NSLog(@"it's connected!"); //Mail App Mail Button [[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"mailto://[email protected]"]]; } - (IBAction)web_button:(id)sender{ NSLog(@"it's connected!"); //Local HTML Button NSURLRequest *theRequest = [NSURLRequest requestWithURL:[NSURL URLWithString: @"http://optibelt.com"]]; [webview loadRequest:theRequest]; } - (IBAction)news_button:(id)sender{ NSLog(@"it's connected!"); //local Home Button NSURLRequest *theRequest = [NSURLRequest requestWithURL:[NSURL fileURLWithPath:[[NSBundle mainBundle] pathForResource:@"home-de" ofType:@"html"]isDirectory:NO]]; [webview loadRequest:theRequest]; } - (void)viewDidUnload { [super viewDidUnload]; // Release any retained subviews of the main view. // e.g. self.myOutlet = nil; } - (void)viewWillAppear:(BOOL)animated { [super viewWillAppear:animated]; } - (void)viewDidAppear:(BOOL)animated { [super viewDidAppear:animated]; } - (void)viewWillDisappear:(BOOL)animated { [super viewWillDisappear:animated]; } - (void)viewDidDisappear:(BOOL)animated { [super viewDidDisappear:animated]; } - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation { // Return YES for supported orientations return (interfaceOrientation != UIInterfaceOrientationPortraitUpsideDown); } @end At last my 3. -(void) does not work and i ve no more idea what could be the problem.... -(void)webViewDidStartLoad:(UIWebView *) webview { [UIApplication sharedApplication].networkActivityIndicatorVisible = YES; [active startAnimating]; NSLog(@"lade"); } -(void)webViewDidFinishLoad:(UIWebView *) webview { [UIApplication sharedApplication].networkActivityIndicatorVisible = NO; [active stopAnimating]; NSLog(@"fertig"); } -(void)webView: (UIWebView *) webview didFailLoadWithError:(NSError *)error{ NSLog(@"lade error"); UIAlertView *alert_error = [[UIAlertView alloc] initWithTitle:@"Error" message:@"Can't connect. Please check your internet Connection" delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil]; [alert_error show]; [alert_error release];

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• Android spinner inside a custom control - OnItemSelectedListener does not trigger

  - by Idan

  I am writing a custom control that extends LinearLayout. Inside that control I am using a spinner to let the user select an item from a list. The problem I have is that the OnItemSelectedListener event does not fire. When moving the same code to an Activity/Fragment all is working just fine. I have followed some answers that was given to others asking about the same issue, and nothing helped. still the event does not fire. This is my code after I followed the answers that suggested to put the spinner inside my layout XML instead of by code. I am getting the same result when I try to just "new Spinner(ctx)"... layout XML: <Spinner android:id="@+id/accSpinner" android:layout_width="0dip" android:layout_height="0dip" /> Initialization function of the control (called on the control constructor): private void init() { LayoutInflater layoutInflater = LayoutInflater.from(mContext); mAccountBoxView = layoutInflater.inflate(R.layout.control_accountselector, null); mTxtAccount = (TextView)mAccountBoxView.findViewById(R.id.txtAccount); mSpinner = (Spinner)mAccountBoxView.findViewById(R.id.accSpinner); mAccountBoxView.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { mSpinner.performClick(); } }); setSpinner(); addView(mAccountBoxView); } private void setSpinner() { ArrayAdapter<String> dataAdapter = new ArrayAdapter<String>(mContext, android.R.layout.simple_spinner_item, mItems); dataAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); mSpinner.setAdapter(dataAdapter); mSpinner.setOnItemSelectedListener(new OnItemSelectedListener() { @Override public void onItemSelected(AdapterView<?> parent, View view, int position, long id) { String selectedItem = mItems.get(position); handleSelectedItem(selectedItem); } @Override public void onNothingSelected(AdapterView<?> parent) { } }); } The spinner raises just fine when i touch my control and the list of items is there as it should. When I click an item the spinner closes but I am never getting to onItemSelected nor onNothingSelected.. Any ideas?

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• Adding GestureOverlayView to my SurfaceView class, how to add to view hierarchy?

  - by Codejoy

  I was informed in a later answer that I have to add the GestureOverlayView I create in code to my view hierarchy, and I am not 100% how to do that. Below is the original question for completeness. I want my game to be able to recognize gestures. I have this nice SurfaceView class that I do an onDraw to draw my sprites, and I have a thread thats running it to call the onDraw etc . This all works great. I am trying to add the GestureOverlayView to this and it just isn't working. Finally hacked to where it doesn't crash but this is what i have public class Panel extends SurfaceView implements SurfaceHolder.Callback, OnGesturePerformedListener { public Panel(Context context) { theContext=context; mLibrary = GestureLibraries.fromRawResource(context, R.raw.myspells); GestureOverlayView gestures = new GestureOverlayView(theContext); gestures.setOrientation(gestures.ORIENTATION_VERTICAL); gestures.setEventsInterceptionEnabled(true); gestures.setGestureStrokeType(gestures.GESTURE_STROKE_TYPE_MULTIPLE); gestures.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT)); //GestureOverlayView gestures = (GestureOverlayView) findViewById(R.id.gestures); gestures.addOnGesturePerformedListener(this); } ... ... onDraw... surfaceCreated(..); ... ... public void onGesturePerformed(GestureOverlayView overlay, Gesture gesture) { ArrayList<Prediction> predictions = mLibrary.recognize(gesture); // We want at least one prediction if (predictions.size() > 0) { Prediction prediction = predictions.get(0); // We want at least some confidence in the result if (prediction.score > 1.0) { // Show the spell Toast.makeText(theContext, prediction.name, Toast.LENGTH_SHORT).show(); } } } } The onGesturePerformed is never called. Their example has the GestureOverlay in the xml, I am not using that, my activity is simple: @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); requestWindowFeature(Window.FEATURE_NO_TITLE); Panel p = new Panel(this); setContentView(p); } So I am at a bit of a loss of the missing piece of information here, it doesn't call the onGesturePerformed and the nice pretty yellow "you are drawing a gesture" never shows up.

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• ArrayAdapter throwing ArrayIndexOutOfBoundsException

  - by alex

  I am getting an error of an array out of bounce error when i am using my custom array adapter. I am wondering if there are any coding errors I have overlooked. Here is the error log 06-10 20:21:53.254: E/AndroidRuntime(315): FATAL EXCEPTION: main 06-10 20:21:53.254: E/AndroidRuntime(315): java.lang.RuntimeException: Unable to start activity ComponentInfo{alex.android.galaxy.tab.latest/alex.android.galaxy.tab.latest.Basic_db_output}: java.lang.ArrayIndexOutOfBoundsException 06-10 20:21:53.254: E/AndroidRuntime(315): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2663) 06-10 20:21:53.254: E/AndroidRuntime(315): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679) 06-10 20:21:53.254: E/AndroidRuntime(315): at android.app.ActivityThread.access$2300(ActivityThread.java:125) 06-10 20:21:53.254: E/AndroidRuntime(315): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033) 06-10 20:21:53.254: E/AndroidRuntime(315): at android.os.Handler.dispatchMessage(Handler.java:99) 06-10 20:21:53.254: E/AndroidRuntime(315): at android.os.Looper.loop(Looper.java:123) 06-10 20:21:53.254: E/AndroidRuntime(315): at android.app.ActivityThread.main(ActivityThread.java:4627) 06-10 20:21:53.254: E/AndroidRuntime(315): at java.lang.reflect.Method.invokeNative(Native Method) 06-10 20:21:53.254: E/AndroidRuntime(315): at java.lang.reflect.Method.invoke(Method.java:521) 06-10 20:21:53.254: E/AndroidRuntime(315): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868) 06-10 20:21:53.254: E/AndroidRuntime(315): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626) 06-10 20:21:53.254: E/AndroidRuntime(315): at dalvik.system.NativeStart.main(Native Method) 06-10 20:21:53.254: E/AndroidRuntime(315): Caused by: java.lang.ArrayIndexOutOfBoundsException 06-10 20:21:53.254: E/AndroidRuntime(315): at alex.android.galaxy.tab.latest.Basic_db_output.onCreate(Basic_db_output.java:44) 06-10 20:21:53.254: E/AndroidRuntime(315): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047) 06-10 20:21:53.254: E/AndroidRuntime(315): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627) I am basing my code example on this How to use ArrayAdapter<myClass> ArrayList list = new ArrayList(); for(int i=1; i <= 3; i++) { Reader reader = new ResultsReader("android_galaxy_tab_latest/src/quiz"+i+".txt"); reader.read(); String str = ((ResultsReader)reader).getInput(); String data[] = str.split("<.>"); Question q = new Question(); q.question = data[0]; q.answer = Integer.parseInt(data[1]); q.choice1 = data[2]; q.choice2 = data[3]; q.choice3 = data[4]; list.add(q); }

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• Strange behaviour with mediaplayer and seekTo

  - by Mathias Lin

  I'm implementing a custom video player because I need custom video controls. I have an app with only one activity, which on startup shall start playing a video right away. Now, the problem I have is: I don't want the video to start from the beginning, but from a later position. Therefore I do a seekTo(16867). Since seekTo is asynchronous, I place the start call of the mediaplayer (player.start()) in the onSeekComplete of the onSeekCompleteListener. The strange behaviour I experience though is that I can see/hear the video playing from the beginning for a few millisecs before it actually plays from/jumps to the position I seeked to. But - on the other hand - the Log output I call before the player.start returns the correct position 16867, where I seeked to. Below is the relevant code section, the complete class is at http://pastebin.com/jqAAFsuX (I'm on Nexus One / 2.2 StageFright) private void playVideo(String url) { try { btnVideoPause.setEnabled(false); if (player==null) { player=new MediaPlayer(); player.setScreenOnWhilePlaying(true); } else { player.stop(); player.reset(); } url = "/sdcard/myapp/main/videos/main.mp4"; // <--- just for test purposes hardcoded here now player.setDataSource(url); player.setDisplay(holder); player.setAudioStreamType(AudioManager.STREAM_MUSIC); player.setOnCompletionListener(this); player.setOnPreparedListener(this); player.setOnSeekCompleteListener(new MediaPlayer.OnSeekCompleteListener() { public void onSeekComplete(MediaPlayer mediaPlayer) { Log.d("APP", "current pos... "+ player.getCurrentPosition() ); player.start(); // <------------------ start video on seek completed player.setOnSeekCompleteListener(null); } }); player.prepareAsync(); } catch (Throwable t) { Log.e(TAG, "Exception in btnVideoPause prep", t); } } public void onPrepared(MediaPlayer mediaplayer) { width=player.getVideoWidth(); height=player.getVideoHeight(); if (width!=0 && height!=0) { holder.setFixedSize(width, height); progressBar.setProgress(0); progressBar.setMax(player.getDuration()); player.seekTo(16867); // <------------------ seeking to position } btnVideoPause.setEnabled(true); }

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• get Phone numbers from android phone

  - by Luca

  Hi! First of all i'm sorry for my english... I've a problem getting phone numbers from contacts. That's my code import android.app.ListActivity; import android.database.Cursor; import android.os.Bundle; import android.provider.ContactsContract; import android.widget.SimpleAdapter; import android.widget.Toast; import java.util.ArrayList; import java.util.HashMap; public class TestContacts extends ListActivity { private ArrayList<HashMap<String,String>> list = new ArrayList<HashMap<String,String>>(); private SimpleAdapter numbers; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.contacts); numbers = new SimpleAdapter( this, list, R.layout.main_item_two_line_row, new String[] { "line1","line2" }, new int[] { R.id.text1, R.id.text2 } ); setListAdapter( numbers ); Cursor cursor = getContentResolver().query(ContactsContract.Contacts.CONTENT_URI, null, null, null, null); while (cursor.moveToNext()) { String contactId = cursor.getString(cursor.getColumnIndex( ContactsContract.Contacts._ID)); String hasPhone = cursor.getString(cursor.getColumnIndex( ContactsContract.Contacts.HAS_PHONE_NUMBER)); //check if the contact has a phone number if (Boolean.parseBoolean(hasPhone)) { Cursor phones = getContentResolver().query( ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null, ContactsContract.CommonDataKinds.Phone.CONTACT_ID +" = "+ contactId, null, null); while (phones.moveToNext()) { // Get the phone number!? String contactName = phones.getString( phones.getColumnIndex( ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME)); String phoneNumber = phones.getString( phones.getColumnIndex( ContactsContract.CommonDataKinds.Phone.NUMBER)); Toast.makeText(this, phoneNumber, Toast.LENGTH_LONG).show(); drawContact(contactName, phoneNumber); } phones.close(); } }cursor.close(); } private void drawContact(String name, String number){ HashMap<String,String> item = new HashMap<String,String>(); item.put( "line1",name); item.put( "line2",number); list.add( item ); numbers.notifyDataSetChanged(); } } It'seems that no contact have a phone number (i've added 2 contacts on the emulator and i've tried also on my HTC Desire). The problem is that if (Boolean.parseBoolean(hasPhone)) returns always false.. How can i get correctly phone numbers? I've tried to call drawContact(String name, String number) before the if statement without querying for the phone number, and it worked (it draws two times the name). but on the LinearLayout they are not ordered alphabetically... how can i order alphabetically (similar to the original contacts app)? thank you in advice, Luca

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• JSF : How to refresh required field in ajax request

  - by Tama

  Ok, here you are the core problem. The page. I have two required "input text". A command button that changes the bean value and reRenderes the "job" object. <a4j:form id="pervForm"> SURNAME:<h:inputText id="surname" label="Surname" value="#{prevManager.surname}" required="true" /> <br/> JOB:<h:inputText value="#{prevManager.job}" id="job" maxlength="10" size="10" label="#{msg.common_label_job}" required="true" /> <br/> <a4j:commandButton value="Set job to Programmer" ajaxSingle="true" reRender="job"> <a4j:actionparam name="jVal" value="Programmer" assignTo="#{prevManager.job}"/> </a4j:commandButton> <h:commandButton id="save" value="save" action="save" class="HATSBUTTON"/> </a4j:form> Here the simple manager: public class PrevManager { private String surname; private String job; public String getSurname() { return surname; } public void setSurname(String surname) { this.surname = surname; } public String getJob() { return job; } public void setJob(String job) { this.job = job; } public String save() { //do something } } Let's do this: Write something on the Job input text (such as "teacher"). Leave empty the surname. Save. Validation error appears (surname is mandatory). Press "Set job to Programmer": nothing happens. Checking the bean value, I discovered that it is correctly updated, indeed the component on the page is not updated! Well, according to the JBoss Docs I found: Ajax region is a key ajax component. It limits the part of the component tree to be processed on the server side when ajax request comes. Processing means invocation during Decode, Validation and Model Update phase. Most common reasons to use a region are: -avoiding the aborting of the JSF lifecycle processing during the validation of other form input unnecessary for given ajax request; -defining the different strategies when events will be delivered (immediate="true/false") -showing an individual indicator of an ajax status -increasing the performance of the rendering processing (selfRendered="true/false", renderRegionOnly="true/false") The following two examples show the situation when a validation error does not allow to process an ajax input. Type the name. The outputText component should reappear after you. However, in the first case, this activity will be aborted because of the other field with required="true". You will see only the error message while the "Job" field is empty. Here you are the example: <ui:composition xmlns="http://www.w3.org/1999/xhtml" xmlns:ui="http://java.sun.com/jsf/facelets" xmlns:h="http://java.sun.com/jsf/html" xmlns:f="http://java.sun.com/jsf/core" xmlns:a4j="http://richfaces.org/a4j" xmlns:rich="http://richfaces.org/rich"> <style> .outergridvalidationcolumn { padding: 0px 30px 10px 0px; } </style> <a4j:outputPanel ajaxRendered="true"> <h:messages style="color:red" /> </a4j:outputPanel> <h:panelGrid columns="2" columnClasses="outergridvalidationcolumn"> <h:form id="form1"> <h:panelGrid columns="2"> <h:outputText value="Name" /> <h:inputText value="#{userBean.name}"> <a4j:support event="onkeyup" reRender="outname" /> </h:inputText> <h:outputText value="Job" /> <h:inputText required="true" id="job2" value="#{userBean.job}" /> </h:panelGrid> </h:form> <h:form id="form2"> <h:panelGrid columns="2"> <h:outputText value="Name" /> <a4j:region> <h:inputText value="#{userBean.name}"> <a4j:support event="onkeyup" reRender="outname" /> </h:inputText> </a4j:region> <h:outputText value="Job" /> <h:inputText required="true" id="job1" value="#{userBean.job}" /> </h:panelGrid> </h:form> </h:panelGrid> <h:outputText id="outname" style="font-weight:bold" value="Typed Name: #{userBean.name}" /> <br /> </ui:composition> Form1: the behaviour is incorrect. I need to fill the job and then the name. Form2: the behaviour is correct. I do not need to fill the job to see the correct value. Unfortunately using Ajax region does not help (indeed I used it in a bad way ...) because my fields are both REQUIRED. That's the main different. Any idea? Many thanks.

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• XmlHttpRequest bug?

  - by valdo

  Hello all. I'm writing a program that among other things needs to download a file given its URL. I'm too lazy to implement the Http/Https protocols manually, so that I needed some library/object/function that'll do the job. Critical requirement: The download must be asynchronous. That is, the thread that issued the download must be able to do something else "while" downloading the file, plus the download must be able to be aborted anytime without any barbaric side effects (such as internal call to TerminateThread). Nice-to-have requirements: Should be able to download the file "into memory". Means - read the contents of the file as they arrive, not necessarily save it into some "file system" file. It'd be nice to have some convenient Win32 progress notification mechanism (waitable event, semahpore, completion port, etc.), rather than just periodically polling the download status. I've chosen the XmlHttpRequest COM object to do the work. It seemed to work fine enough, plus it supported asynchronous mode. However I noticed that after some period it just stops working. That is, after several successful file downloads it stops downloading anything. I periodically poll it to get its status, it reports "in-progress", but nothing actually happens, and there's no network activity. Moreover, when the same process creates another instance of XmlHttpRequest object to perform new downloads - the effect is the same. The object reports "in progress", whereas it doesn't even try to connect to the server (according to network sniffers and system TCP state). The only way to make this object work back is to restart the process. This makes me suspect that there's a sort of a bug (sorry, I meant undocumented feature) in the object. Also it's not a bug at the level of an individual object, since the problem persists when the object is destroyed and another one is created. It's probably some global state of the DLL that implements this object. Does anyone know something about this? Is this a known bug? I'm pretty sure there's no chance that I have another bug in my code, because of which it seems to me to be the bug is in the XmlHttpRequest. I've done enoughtests and spent time with the debugger to conclude without reasonable doubt that it's just the object stops working. BTW, while the object should work, I do all the waiting via MsgWaitXXXX API calls. So that if this object needs the message loop to work properly (for instance, it may create a hidden notification window and bind it to a socket via WSAAsyncSelect) - I give it the opportunity.

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• Java app makes screen display unresponsive after 10 minutes of user idle time

  - by Ross

  I've written a Java app that allows users to script mouse/keyboard input (JMacro, link not important, only for the curious). I personally use the application to automate character actions in an online game overnight while I sleep. Unfortunately, I keep coming back to the computer in the morning to find it unresponsive. Upon further testing, I'm finding that my application causes the computer to become unresponsive after about 10 minutes of user idle time (even if the application itself it simulating user activity). I can't seem to pin-point the issue, so I'm hoping somebody else might have a suggestion of where to look or what might be causing the issue. The relevant symptoms and characteristics: Unresponsiveness occurs after user is idle for 10 minutes User can still move the mouse pointer around the screen Everything but the mouse appears frozen... mouse clicks have no effect and no applications update their displays, including the Windows 7 desktop I left the task manager up along the with the app overnight so I could see the last task manager image before the screen freezes... the Java app is at normal CPU/Memory usage and total CPU usage is only ~1% After moving the mouse (in other words, the user comes back from being idle), the screen image starts updating again within 30 minutes (this is very hit and miss... sometimes 10 minutes, sometimes no results after two hours) User can CTRL-ALT-DEL to get to Windows 7's CTRL-ALT-DEL screen (after a 30 second pause). User is still able to move mouse pointer, but clicking any of the button options causes the screen to appear to freeze again On some very rare occasions, the system never freezes, and I come back to it in the morning with full responsiveness The Java app automatically stops input scripting in the middle of the night, so Windows 7 detects "real" idleness and turns the monitors into Standby mode... which they successfully come out of upon manually moving the mouse in the morning when I wake up, even though the desktop display still appears frozen Given the symptoms and characteristics of the issue, it's as if the Java app is causing the desktop display of the logged in user to stop updating, including any running applications. Programming concepts and Java packages used: Multi-threading Standard out and err are rerouted to a javax.swing.JTextArea The application uses a Swing GUI awt.Robot (very heavily used) awt.PointerInfo awt.MouseInfo System Specs: Windows 7 Professional Java 1.6.0 u17 In conclusion, I should stress that I'm not looking for any specific solutions, as I'm not asking a very specific question. I'm just wondering if anybody has run into a similar problem when using the Java libraries that I'm using. I would also gladly appreciate any suggestions for things to try to attempt to further pinpoint what is causing my problem. Thanks! Ross PS, I'll post an update/answer if I manage to stumble across anything else while I continue to debug this.

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• C program using inotify to monitor multiple directories along with sub-directories?

  - by lakshmipathi

  I have program which monitors a directory (/test) and notify me. I want to improve this to monitor another directory (say /opt). And also how to monitor it's subdirectories , current i'll get notified if any changes made to files under /test . but i'm not getting any inotifcation if changes made sub-directory of /test, that is touch /test/sub-dir/files.txt .. Here my current code - hope this will help /* Simple example for inotify in Linux. inotify has 3 main functions. inotify_init1 to initialize inotify_add_watch to add monitor then inotify_??_watch to rm monitor.you the what to replace with ??. yes third one is inotify_rm_watch() */ #include <sys/inotify.h> int main(){ int fd,wd,wd1,i=0,len=0; char pathname[100],buf[1024]; struct inotify_event *event; fd=inotify_init1(IN_NONBLOCK); /* watch /test directory for any activity and report it back to me */ wd=inotify_add_watch(fd,"/test",IN_ALL_EVENTS); while(1){ //read 1024 bytes of events from fd into buf i=0; len=read(fd,buf,1024); while(i<len){ event=(struct inotify_event *) &buf[i]; /* check for changes */ if(event->mask & IN_OPEN) printf("%s :was opened\n",event->name); if(event->mask & IN_MODIFY) printf("%s : modified\n",event->name); if(event->mask & IN_ATTRIB) printf("%s :meta data changed\n",event->name); if(event->mask & IN_ACCESS) printf("%s :was read\n",event->name); if(event->mask & IN_CLOSE_WRITE) printf("%s :file opened for writing was closed\n",event->name); if(event->mask & IN_CLOSE_NOWRITE) printf("%s :file opened not for writing was closed\n",event->name); if(event->mask & IN_DELETE_SELF) printf("%s :deleted\n",event->name); if(event->mask & IN_DELETE) printf("%s :deleted\n",event->name); /* update index to start of next event */ i+=sizeof(struct inotify_event)+event->len; } } }

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• How can i put the thumbnail beside the list item in Android?

  - by Srikanth Naidu

  public class ShootList extends ListActivity implements OnItemClickListener { String[] listItems = {"HeadShot", "BodyShot ", "ExtraShot", "Video Take1", "Video Take2", "Video Take3", }; public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.list); setListAdapter(new ArrayAdapter(this,android.R.layout.simple_list_item_1, listItems)); ListView shot = getListView(); shot.setOnItemClickListener(this); } @Override public void onItemClick(AdapterView<?> arg0, View arg1, int Position, long arg3) { // TODO Auto-generated method stub int P = Position; switch ( P ) { case 0: Intent intent = new Intent("android.media.action.IMAGE_CAPTURE"); startActivityForResult(intent, 1); break; case 1: AlertDialog.Builder alertbox1 = new AlertDialog.Builder(this); alertbox1.setMessage("BodyShot").show(); break; case 2: AlertDialog.Builder alertbox2 = new AlertDialog.Builder(this); alertbox2.setMessage("ExtraShot").show(); break; case 3: Intent Take1 = new Intent("android.media.action.VIDEO_CAPTURE"); startActivityForResult(Take1, 0); break; case 4: AlertDialog.Builder alertbox4 = new AlertDialog.Builder(this); alertbox4.setMessage("Take2").show(); break; case 5: AlertDialog.Builder alertbox5 = new AlertDialog.Builder(this); alertbox5.setMessage("Take3").show(); break; default: break; } } public void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); int i; // if Activity was canceled, display a Toast message if (resultCode == RESULT_CANCELED) { Toast toast = Toast.makeText(this,"camera cancelled", 10000); toast.show(); return; } // lets check if we are really dealing with a picture if (requestCode == 1 && resultCode == RESULT_OK) { Bundle extras = data.getExtras(); Bitmap b = (Bitmap) extras.get("data"); //setContentView(R.layout.main); ImageView mImg; mImg = (ImageView) findViewById(R.id.img); mImg.setImageBitmap(b); // save image to gallery String timestamp = Long.toString(System.currentTimeMillis()); MediaStore.Images.Media.insertImage(getContentResolver(), b, timestamp, timestamp); } } }

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• Getting instance crashes on IntelliJ IDEA with scala plugin.

  - by egervari

  I am building a scala web project using scala test, lift, jpa, hibernate, mercurial plugin, etc. I am getting instant crashes, where the ide just bombs, the window shuts down, and it gives no error messages whatsoever when I am doing any amount of copy/pasting of code. This started happening once my project got to about 100 unit tests. This problem is incredibly annoying, because when the crash happens, 30-60 seconds of activity is not saved. Even IDEA will forget which files were last opened and will forget where the cursor was, which makes it really hard to continue where you left off after the crash. A lot can happen in 60 seconds! Now, I've given up, because it seems like all sorts of things cause the IntelliJ IDEA to crash over and over. For example, if I were to copy and paste this code, to write a similar test for another collection type, it would crash shortly after: it should "cascade save and delete status messages" in { val statusMessage = new StatusMessage("message") var user = userDao.find(1).get user.addToStatusMessages(statusMessage) userDao.save(user) statusMessage.isPersistent should be (true) userDao.delete(user) statusMessageDao.find(statusMessage.id) should equal (None) } There is nothing special about this piece of code. It's code that is working just fine. However, IDEA bombs shortly after I paste something like this. For example, I might change StatusMessage to the new class I want to test cascading on... and then have to import that class into the test... and BOOM... it crashed. On windows 7, the IDEA window literally just minimizes and crashes with no warning. The next time I startup IDEA, it has no memory of what happened. Now, I've had this problem before. I posted it way back on IDEA's YouTrack. I was told to invalidate my caches. That never fixed it then, and it's not fixing it now. Please help. This error is fairly random, but it's happening constantly now. I could program for hours and not see it before... and the fact that my work just gets destroyed and I can't remember what I did during the last minute causes me to swear at my monitor at a db level higher than my stereo can go.

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• how to check if internal storage file has any data

  - by user3720291

  public class Save extends Activity { int levels = 2; int data_block = 1024; //char[] data = new char[] {'0', '0'}; String blankval = "0"; String targetval = "0"; String temp; String tempwrite; String string = "null"; TextView tex1; TextView tex2; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.save); Intent intent = getIntent(); Bundle b = intent.getExtras(); tex1 = (TextView) findViewById(R.id.textView1); tex2 = (TextView) findViewById(R.id.textView2); if(b!=null) { string =(String) b.get("string"); } loadprev(); save(); } public void save() { if (string.equals("Blank")) blankval = "1"; if (string.equals("Target")) targetval = "1"; temp = blankval + targetval; try { FileOutputStream fos = openFileOutput("data.gds", MODE_PRIVATE); fos.write(temp.getBytes()); fos.close(); } catch (FileNotFoundException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();} tex1.setText(blankval); tex2.setText(targetval); } public void loadprev() { String final_data = ""; try { FileInputStream fis = openFileInput("data.gds"); InputStreamReader isr = new InputStreamReader(fis); char[] data = new char[data_block]; int size; while((size = isr.read(data))>0) { String read_data = String.copyValueOf(data, 0, size); final_data += read_data; data = new char[data_block]; } } catch (FileNotFoundException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();} char[] tempread = final_data.toCharArray();; blankval = "" + tempread[0]; targetval = "" + tempread[1]; } } After much tinkering i have finally managed to get my save/load function to work, but it does have an error, pretty much i got it to work then i did a fresh reintall deleting data.gds, afterwards the save/load function crashes because the data.gds file has no previous values. can i use a if statment to check if data.gds has any values in it, if so how do i do it and if not, then what could i use instead?

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• Expandable list with animated effect

  - by Naveen Chauhan

  I am using this animation class to create the animation when i shrink and expand the list on some click event import android.view.View; import android.view.animation.Animation; import android.view.animation.Transformation; import android.widget.LinearLayout.LayoutParams; public class ExpandAnimation extends Animation{ private View mAnimatedView; private LayoutParams mViewLayoutParams; private int mMarginStart, mMarginEnd; private boolean mIsVisibleAfter = false; private boolean mWasEndedAlready = false; public ExpandAnimation(View view, int duration){ setDuration(duration); mAnimatedView = view; System.out.println(view.getVisibility()); mViewLayoutParams = (LayoutParams)view.getLayoutParams(); mIsVisibleAfter = (view.getVisibility() == View.VISIBLE); System.out.println("mIsVisibleAfter:- "+ mIsVisibleAfter); mMarginStart = mViewLayoutParams.bottomMargin; System.out.println("mMarginStart:- "+ mMarginStart); mMarginEnd = (mMarginStart == 0 ?(0 - view.getHeight()):0); System.out.println("mMarginEnd:- "+mMarginEnd); view.setVisibility(View.VISIBLE); } @Override protected void applyTransformation(float interpolatedTime, Transformation t){ super.applyTransformation(interpolatedTime, t); System.out.println("mMarginEnd:- "+interpolatedTime); if(interpolatedTime<1.0f){ System.out.println("Inside if true"); mViewLayoutParams.bottomMargin = mMarginStart + (int) ((mMarginEnd - mMarginStart)*interpolatedTime); System.out.println("mViewLayoutParams.bottomMargin:- "+mViewLayoutParams.bottomMargin); mAnimatedView.requestLayout(); }else if(!mWasEndedAlready){ mViewLayoutParams.bottomMargin = mMarginEnd; mAnimatedView.requestLayout(); System.out.println("mIsVisibleAfter:- "+mIsVisibleAfter); if(mIsVisibleAfter){ mAnimatedView.setVisibility(View.GONE); } mWasEndedAlready = true; } } } i am using following lines on some click event in my activity class to create the object of my animation class View toolbar = (View) findViewById(R.id.toolbar1); ExpandAnimation expandani = new ExpandAnimation(toolbar,500); toolbar.startAnimation(expandani); My probem is that when click event occurs, my list expand and then shrink but it must stop when it grows completely and shrink when i click on up image. please let me know that how my animation class is working. i have also tried myself by using SOP statements which you can see in my animation class.

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• Uploading files to varbinary(max) in SQL Server -- works on one server, not the other

  - by pjabbott

  I have some code that allows users to upload file attachments into a varbinary(max) column in SQL Server from their web browser. It has been working perfectly fine for almost two years, but all of a sudden it stopped working. And it stopped working on only the production database server -- it still works fine on the development server. I can only conclude that the code is fine and there is something up with the instance of SQL Server itself. But I have no idea how to isolate the problem. I insert a record into the ATTACHMENT table, only inserting non-binary data like the title and the content type, and then chunk-upload the uploaded file using the following code: // get the file stream System.IO.Stream fileStream = postedFile.InputStream; // make an upload buffer byte[] fileBuffer; fileBuffer = new byte[1024]; // make an update command SqlCommand fileUpdateCommand = new SqlCommand("update ATTACHMENT set ATTACHMENT_DATA.WRITE(@Data, NULL, NULL) where ATTACHMENT_ID = @ATTACHMENT_ID", sqlConnection, sqlTransaction); fileUpdateCommand.Parameters.Add("@Data", SqlDbType.Binary); fileUpdateCommand.Parameters.AddWithValue("@ATTACHMENT_ID", newId); while (fileStream.Read(fileBuffer, 0, fileBuffer.Length) > 0) { fileUpdateCommand.Parameters["@Data"].Value = fileBuffer; fileUpdateCommand.ExecuteNonQuery(); <------ FAILS HERE } fileUpdateCommand.Dispose(); fileStream.Close(); Where it says "FAILS HERE", it sits for a while and then I get a SQL Server timeout error on the very first iteration through the loop. If I connect to the development database instead, everything works fine (it runs through the loop many, many times and the commit is successful). Both servers are identical (SQL Server 9.0.3042) and the schemas are identical as well. When I open Activity Monitor right after the timeout to see what's going it, it says the last command is (@Data binary(1024),@ATTACHMENT_ID decimal(4,0))update ATTACHMENT set ATTACHMENT_DATA.WRITE(@Data, NULL, NULL) where ATTACHMENT_ID = @ATTACHMENT_ID which I would expect but it also says it has a status of "Suspended" and a wait type of "PAGEIOLATCH_SH". I looked this up and it seems to be a bad thing but I can't find anything specific to my stuation. Ideas?

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• In Google Glass, Menu Items are not shown after XE 17.2 Update, any Solutions?

  - by Amalan Dhananjayan

  This worked when the Glass in on XE12, I have opened the solution after about 2 Months and now with XE17 the menu items are not shown when tapped on the Live card, instead the live card is disappearing. I have updated the GDK, I have changed the code to support the latest GDK sneak peek version 2 changes according to this (https://developers.google.com/glass/release-notes#xe12) This is the code public class MenuActivity extends Activity { private static final String TAG = MenuActivity.class.getSimpleName(); private VisionService.VisionBinder mVisionService; private ServiceConnection mConnection = new ServiceConnection() { @Override public void onServiceConnected(ComponentName name, IBinder service) { if (service instanceof VisionService.VisionBinder) { mVisionService = (VisionService.VisionBinder) service; openOptionsMenu(); } // No need to keep the service bound. unbindService(this); } @Override public void onServiceDisconnected(ComponentName name) { } }; private boolean mResumed; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); bindService(new Intent(this, VisionService.class), mConnection, 0); } @Override protected void onResume() { super.onResume(); mResumed = true; openOptionsMenu(); } @Override protected void onPause() { super.onPause(); mResumed = false; } @Override public void openOptionsMenu() { if (mResumed && mConnection != null) { super.openOptionsMenu(); } } @Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.menu, menu); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { int id = item.getItemId(); if (id == R.id.action_send) { mVisionService.requestWorkOrderCard(); finish(); return true; } else if (id == R.id.action_refresh) { mVisionService.requestTopWorkOrders(); finish(); return true; } else if (id == R.id.action_finish) { stopService(new Intent(this, VisionService.class)); finish(); return true; } else { return super.onOptionsItemSelected(item); } } @Override public void onOptionsMenuClosed(Menu menu) { super.onOptionsMenuClosed(menu); } } It would be great if any body could help on this. Thank You

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• Running out of memory.. How?

  - by maxdj

  I'm attempting to write a solver for a particular puzzle. It tries to find a solution by trying every possible move one at a time until it finds a solution. The first version tried to solve it depth-first by continually trying moves until it failed, then backtracking, but this turned out to be too slow. I have rewritten it to be breadth-first using a queue structure, but I'm having problems with memory management. Here are the relevant parts: int main(int argc, char *argv[]) { ... int solved = 0; do { solved = solver(queue); } while (!solved && !pblListIsEmpty(queue)); ... } int solver(PblList *queue) { state_t *state = (state_t *) pblListPoll(queue); if (is_solution(state->pucks)) { print_solution(state); return 1; } state_t *state_cp; puck new_location; for (int p = 0; p < puck_count; p++) { for (dir i = NORTH; i <= WEST; i++) { if (!rules(state->pucks, p, i)) continue; new_location = in_dir(state->pucks, p, i); if (new_location.x != -1) { state_cp = (state_t *) malloc(sizeof(state_t)); state_cp->move.from = state->pucks[p]; state_cp->move.direction = i; state_cp->prev = state; state_cp->pucks = (puck *) malloc (puck_count * sizeof(puck)); memcpy(state_cp->pucks, state->pucks, puck_count * sizeof(puck)); /*CRASH*/ state_cp->pucks[p] = new_location; pblListPush(queue, state_cp); } } } return 0; } When I run it I get the error: ice(90175) malloc: *** mmap(size=2097152) failed (error code=12) *** error: can't allocate region *** set a breakpoint in malloc_error_break to debug Bus error The error happens around iteration 93,000. From what I can tell, the error message is from malloc failing, and the bus error is from the memcpy after it. I have a hard time believing that I'm running out of memory, since each game state is only ~400 bytes. Yet that does seem to be what's happening, seeing as the activity monitor reports that it is using 3.99GB before it crashes. I'm using http://www.mission-base.com/peter/source/ for the queue structure (it's a linked list). Clearly I'm doing something dumb. Any suggestions?

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• Hibernate Communications Link Failure in Restlet-Hibernate Based Java application powered by MySQL

  - by Vatsala

  Let me describe my question - I have a Java application - Hibernate as the DB interfacing layer over MySQL. I get the communications link failure error in my application. The occurence of this error is a very specific case. I get this error , When I leave mysql server unattended for more than approximately 6 hours (i.e. when there are no queries issued to MySQL for more than approximately 6 hours). I am pasting a top 'exception' level description below, and adding a pastebin link for a detailed stacktrace description. javax.persistence.PersistenceException: org.hibernate.exception.JDBCConnectionException: Cannot open connection - Caused by: org.hibernate.exception.JDBCConnectionException: Cannot open connection - Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure - The last packet successfully received from the server was 1,274,868,181,212 milliseconds ago. The last packet sent successfully to the server was 0 milliseconds ago. - Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure - The last packet successfully received from the server was 1,274,868,181,212 milliseconds ago. The last packet sent successfully to the server was 0 milliseconds ago. - Caused by: java.net.ConnectException: Connection refused: connect the link to the pastebin for further investigation - http://pastebin.com/4KujAmgD What I understand from these exception statements is that MySQL is refusing to take in any connections after a period of idle/nil activity. I have been reading up a bit about this via google search, and came to know that one of the possible ways to overcome this is to set values for c3p0 properties as c3p0 comes bundled with Hibernate. Specifically, I read from here http://www.mchange.com/projects/c3p0/index.html that setting two properties idleConnectionTestPeriod and preferredTestQuery will solve this for me. But these values dont seem to have had an effect. Is this the correct approach to fixing this? If not, what is the right way to get over this? The following are related Communications Link Failure questions at stackoverflow.com, but I've not found a satisfactory answer in their answers. http://stackoverflow.com/questions/2121829/java-db-communications-link-failure http://stackoverflow.com/questions/298988/how-to-handle-communication-link-failure Note 1 - i dont get this error when I am using my application continuosly. Note 2 - I use JPA with Hibernate and hence my hibernate.dialect,etc hibernate properties reside within the persistence.xml in the META-INF folder (does that prevent the c3p0 properties from working?)

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• Android - exception from an AsynchTask call

  - by GeekedOut

  I have an Activity that makes a remote server call and tries to populate a list. The call to the server works fine, and the call returns some JSON which is good. But then the system throws this exception: 04-06 18:43:19.626: D/AndroidRuntime(2564): Shutting down VM 04-06 18:43:19.626: W/dalvikvm(2564): threadid=1: thread exiting with uncaught exception (group=0x409c01f8) 04-06 18:43:19.686: E/AndroidRuntime(2564): FATAL EXCEPTION: main 04-06 18:43:19.686: E/AndroidRuntime(2564): java.lang.NullPointerException 04-06 18:43:19.686: E/AndroidRuntime(2564): at android.widget.ArrayAdapter.createViewFromResource(ArrayAdapter.java:394) 04-06 18:43:19.686: E/AndroidRuntime(2564): at android.widget.ArrayAdapter.getView(ArrayAdapter.java:362) 04-06 18:43:19.686: E/AndroidRuntime(2564): at android.widget.AbsListView.obtainView(AbsListView.java:2033) 04-06 18:43:19.686: E/AndroidRuntime(2564): at android.widget.ListView.measureHeightOfChildren(ListView.java:1244) 04-06 18:43:19.686: E/AndroidRuntime(2564): at android.widget.ListView.onMeasure(ListView.java:1155) 04-06 18:43:19.686: E/AndroidRuntime(2564): at android.view.View.measure(View.java:12723) 04-06 18:43:19.686: E/AndroidRuntime(2564): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4698) 04-06 18:43:19.686: E/AndroidRuntime(2564): at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1369) 04-06 18:43:19.686: E/AndroidRuntime(2564): at android.widget.LinearLayout.measureVertical(LinearLayout.java:660) 04-06 18:43:19.686: E/AndroidRuntime(2564): at android.widget.LinearLayout.onMeasure(LinearLayout.java:553) 04-06 18:43:19.686: E/AndroidRuntime(2564): at android.view.View.measure(View.java:12723) 04-06 18:43:19.686: E/AndroidRuntime(2564): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4698) 04-06 18:43:19.686: E/AndroidRuntime(2564): at android.widget.FrameLayout.onMeasure(FrameLayout.java:293) 04-06 18:43:19.686: E/AndroidRuntime(2564): at android.view.View.measure(View.java:12723) 04-06 18:43:19.686: E/AndroidRuntime(2564): at android.widget.LinearLayout.measureVertical(LinearLayout.java:812) 04-06 18:43:19.686: E/AndroidRuntime(2564): at android.widget.LinearLayout.onMeasure(LinearLayout.java:553) 04-06 18:43:19.686: E/AndroidRuntime(2564): at android.view.View.measure(View.java:12723) 04-06 18:43:19.686: E/AndroidRuntime(2564): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4698) 04-06 18:43:19.686: E/AndroidRuntime(2564): at android.widget.FrameLayout.onMeasure(FrameLayout.java:293) 04-06 18:43:19.686: E/AndroidRuntime(2564): at com.android.internal.policy.impl.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2092) 04-06 18:43:19.686: E/AndroidRuntime(2564): at android.view.View.measure(View.java:12723) 04-06 18:43:19.686: E/AndroidRuntime(2564): at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1064) 04-06 18:43:19.686: E/AndroidRuntime(2564): at android.view.ViewRootImpl.handleMessage(ViewRootImpl.java:2442) 04-06 18:43:19.686: E/AndroidRuntime(2564): at android.os.Handler.dispatchMessage(Handler.java:99) 04-06 18:43:19.686: E/AndroidRuntime(2564): at android.os.Looper.loop(Looper.java:137) 04-06 18:43:19.686: E/AndroidRuntime(2564): at android.app.ActivityThread.main(ActivityThread.java:4424) 04-06 18:43:19.686: E/AndroidRuntime(2564): at java.lang.reflect.Method.invokeNative(Native Method) 04-06 18:43:19.686: E/AndroidRuntime(2564): at java.lang.reflect.Method.invoke(Method.java:511) 04-06 18:43:19.686: E/AndroidRuntime(2564): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784) 04-06 18:43:19.686: E/AndroidRuntime(2564): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551) 04-06 18:43:19.686: E/AndroidRuntime(2564): at dalvik.system.NativeStart.main(Native Method) Why would this happen? It doesn't point to any of my code so its a bit strange. the protected void onPostExecute(String result) never gets called on the callback. Thanks!

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• How to make html image clickable inside a TextView

  - by Gonan

  I have the following text in a string in the resources file: <a href="mailto:[email protected]">&lt;img src="mail_big" /&gt;</a> It shows the image fine (I implemented ImageGetter) but it is not clickable. I have tried adding the Linkify thingy but I don't think it's meant for this case, and so it doesn't work. The setMovementMethod doesn't work either. I have tried different combinations of the above: <a href="mailto:[email protected]">&lt;img src="mail_big" /&gt;hello</a> Here, even the "hello" part is not clickable (neither blue nor underlined). <a href="mailto:[email protected]"><img src="mail_big" /></a> This doesn't even show the image. &lt;a href="mailto:[email protected]"&gt;&lt;img src="mail_big" /&gt;&lt;/a&gt; If I just write the email, without the <a> tag it works perfectly, but I would like to use the image of an envelope that the user can click on. It's not possible to use an imagebutton because this text is in the middle of a string and so I can't split it. Any ideas? Thanks! EDIT: I found a solution or rather found how to do it correctly. All I had to do was adding the setMovementMethod call before the call to setText in the TextView and ALSO, and COMPLETELY NECESSARY, remove the attribute "android:autoLink="all" from the layout. Apparently, parsing mails and urls in a string is mutually exclusive to interpreting the link tags in a string. So one or the other but not both. Finally my layout is just a TextView with nothing special, just width and height. The activity is like this: TextView tv = (TextView)findViewById(R.id.about_text); tv.setMovementMethod(LinkMovementMethod.getInstance()); tv.setText(Html.fromHtml(getString(R.string.about_content), new ImageGetter(), null)); And the string is like this: <string name="about_content"><a href="mailto:[email protected]"><img src="mail" /></a></string>

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• Android Google Analytics

  - by ibenot

  I'm trying to use Google Analytics in my Android application with Google Configuration Add .jar in my project Insert this in AndroidManifest Add this in my java file public class MainActivity extends Activity { GoogleAnalyticsTracker tracker; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); tracker = GoogleAnalyticsTracker.getInstance(); tracker.startNewSession("My-UA–XXXXXXXX", this); setContentView(R.layout.main); Button createEventButton = (Button)findViewById(R.id.NewEventButton); createEventButton.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { tracker.trackEvent( "Clicks", // Category "Button", // Action "clicked", // Label 77); // Value } }); setContentView(R.layout.main); Button createPageButton = (Button)findViewById(R.id.NewPageButton); createPageButton.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { // Add a Custom Variable to this pageview, with name of "Medium" and value "MobileApp" and // scope of session-level. tracker.setCustomVar(1, "Navigation Type", "Button click", 2); // Track a page view. This is probably the best way to track which parts of your application // are being used. // E.g. // tracker.trackPageView("/help"); to track someone looking at the help screen. // tracker.trackPageView("/level2"); to track someone reaching level 2 in a game. // tracker.trackPageView("/uploadScreen"); to track someone using an upload screen. tracker.trackPageView("/testApplicationHomeScreen"); } }); Button quitButton = (Button)findViewById(R.id.QuitButton); quitButton.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { finish(); } }); Button dispatchButton = (Button)findViewById(R.id.DispatchButton); dispatchButton.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { // Manually start a dispatch, not needed if the tracker was started with a dispatch // interval. tracker.dispatch(); } }); } @Override protected void onDestroy() { super.onDestroy(); // Stop the tracker when it is no longer needed. tracker.stopSession(); } } == And it's ok, no error, compiling and executing but i have created my ua account yesterday (more 24h) and i have nothing in my google analytics panel. My Question : is there an error in my code or i want to wait again ? Live trafic works for Android application (like tradicional website) ??? I have no information about Live trafic (when i play my app, i would like to show the number of person using my application) and Saved trafic (with viewed pages, time) Thank you for your replies and excuse my poor english :) bye

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