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  • Android Layout + Programming

    - by MD
    I'm trying to create a "scrollable" layout in Android. Even using developers.android.com, though, I feel a little bit lost at the moment. I'm somewhat new to Java, but not so much that I feel I should be having these issues--being new to Android is the bigger problem right now. The layout I'm trying to create should scroll in a sort of a "grid". I THINK what I'm looking for is the Gallery view, but I'm really lost as to how to implement it at the moment. I want it to "snap" to center the frame, like in the actual Gallery application. Essentially, if I had a photo gallery of 9 pictures, the idea is to scroll between them up/down AND side to side, in a 3x3 manner. Doesn't need to dynamically adjust, or anything like that, I just want a grid I can scroll through. I'm also not asking for anyone to give me explicit code for it--I'm trying to learn, more than anything. But pointing me in the right direction for helpful layout programming resources would be greatly appreciated, and confirming if it's a Gallery view I'm looking for would also be really helpful. Thanks in advance.

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  • Android: Defined array resource not found ?!

    - by David
    Hi, i have a strange (?) error in my android application. I have defined some arrays in values/arrays.xml the following way: <?xml version="1.0" encoding="utf-8"?> <resources> <array name="perimeter"> <item>10 miles</item> <item>20 miles</item> <item>30 miles</item> </array> <array name="regvalues"> <item>1</item> <item>2</item> <item>3</item> </array> </resources> Now I want to use them in a ListPreference for a PreferenceActivity (defined by an xml file). So i set android:entries="@array/perimeter" android:entryValues="@array/regvalues" for this ListPreference. When I try to use this on my device the app crashes. (NullPointer in Dialog.close()) If I try to use the regvalues-items as Entries for the ListPreference i get a NullPointer in ArrayAdapter.createViewFromResource(int, View, ViewGroup, int) line: 355 So there seems to be sth wrong with the regvalues array. But what ?!? Eclipse shows me no errors at compile time. So everything in the xml-file and java-code is written correctly and there are no typos. Where is the problem?!?

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  • SDK Platform Tools component missing - Similar to Android Eve below

    - by Hertfordkc
    Ubuntu Linux 10.04//Eclipse 3.5.2 I'm new to Eclipse and Android. Eclipse is up and running simple Jave apps OK. I moved on to downloading the Android SDK starter package, which seemed to go OK. Ran the SDK manager and downladed Platforms 7,8 & 9. Installed the ADT package in Eclipse. I've tried to load the SDK path into the Eclipse Preferences, but it won't retain the path. After restart, Elipse says it can't find SDK package. Also,one message said that the (revision?) number of the ADT couldn't be found. I've reinstalled Eclipse a couple of times, and then gone through the SDK & ADT download procedures a couple of times and am stuck. Any suggestions will be appreciated. Hertfordkc Stupid question caused by not thoroughly reading the Android Developers Guide and the tutorials before trying to start a project. Don't know why I didn't get a message about a missing XML file.

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  • Importing external .jar file to Android project

    - by robintw
    I've read various answers to similar questions on StackOverflow, so I apologise if I'm repeating another question, but I can't seem to get this to work. I have a standard java project in which I've written code to parse some BBC Radio XML data from the internet. The project is called BBCSchedules and the class I'm interested in is called BBCChannel. I'm now trying to use the BBCChannel class in an android application. How should I go about doing this? I've tried various things, following various bits of advice on the internet, and the place I've got to at the moment is compiling my BBCSchedules project to a .jar file, and importing that to the Android project using the Build Path/Library/Add External Jar option. However, Eclispe still doesn't recognise the BBCChannel class, and won't let me run the application because of this. I guess I've done something silly wrong, but what is it? Cheers, Robin UPDATE: I've tried the steps listed in http://stackoverflow.com/questions/1334802/how-can-i-use-external-jars-in-an-android-project and various other StackOverflow questions I can find that seem to be related to this, but absolutely nothing seems to work. Any other ideas? UPDATE: The discussions I've had with the author of the first answer below suggest that it is something to do with how I am using Eclipse to attach the .jar file. The project he sent me with the .jar file already attached didn't work. Any other ideas anyone?

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  • Turning a series of raw images into movie frames in Android

    - by Nicholas Killewald
    I've got an Android project I'm working on that, ultimately, will require me to create a movie file out of a series of still images taken with a phone's camera. That is to say, I want to be able to take raw image frames and string them together, one by one, into a movie. Audio is not a concern at this stage. Looking over the Android API, it looks like there are calls in it to create movie files, but it seems those are entirely geared around making a live recording from the camera on an immediate basis. While nice, I can't use that for my purposes, as I need to put annotations and other post-production things on the images as they come in before they get fed into a movie (plus, the images come way too slowly to do a live recording). Worse, looking over the Android source, it looks like a non-trivial task to rewire that to do what I want it to do (at least without touching the NDK). Is there any way I can use the API to do something like this? Or alternatively, what would be the best way to go about this, if it's even feasible on cell phone hardware (which seems to keep getting more and more powerful, strangely...)?

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  • Synchronous Android activities

    - by rayman
    Ive made mis-leading topic in my last question, so i open this new question to clear what I realy want. sorry for the inconvenience. I wanna run two system(Android) activities one after another in specific order from my main activity. now as we know, startActivity is an asynchronous operation, so i cant keep on a specific order. so i thought maybe I should try to do it with dialogBox in the middle but also running a dialogBox is an asynchronous. now as i said the activities which i try to run are Android activities, so i cant even start them with startActivityForResult (or mybe i can, but i dont get any result back to my main(calling) activity) Any tricks how could i manage with this issue? Some code: first activity: Intent intent = new Intent(); intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); intent.setAction(Settings.ACTION_APPLICATION_SETTINGS); startActivity(intent); second activity: Intent intent = new Intent(Intent.ACTION_VIEW); intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); intent.setDataAndType(Uri.fromFile(tmpPackageFile .getAbsoluteFile()), "application/vnd.android.package-archive"); startActivity(intent); as you can see, i dont have any access to those activites, i can just run thire intents from my main activity.

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  • Android: Associating Browser to File Type in App

    - by tekmunki
    I'm attempting to write a simple app that associates a file type to the browser; this is assuming the browser will open the file locally... If this doesn't work, the local file - editor will be fine. I have an option of auto-mailing .ELC files from a custom app, they are basically html formatted TEXT or TXT only files; I would like to associate the .elc extension so that it will open direct from mail rather than just "Save to SD Card" as a mail option. Here's the code I'm at right now; AndroidManifest.xml: ELCViewer.java: package com.tekmunki.ELCViewer; import android.app.Activity; import android.os.Bundle; import android.widget.TextView; public class ELCViewer extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); TextView tv = new TextView(this); tv.setText("ELC Viewer Installed! Now, when you receive the ELC files, they will open in the browser."); setContentView(tv); } } 1) How do I make the browser associated with the ELCViewer Activity? (Do I need to make a second activity, or can that all be done in the manifest?) 2) How do I make it persist after the app has been ran once?

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  • Android debug mode not working waiting for device

    - by Blue42
    I'm trying to get my android phone working to run apps from inside an IDE. Got it working on windows no problem, currently working in fedora (18) a lot though so wanted to get it working with that. Got IntelliJ and android sdk installed, problem is when I try to run the default hello world app it wont work it just says waiting for device.. Ran adb devices got List of devices attached ???????????? no permissions Leads me to believe the driver isn't installed? Phone I'm using is a HTC Sensation. Does anyone know what I can do to try and resolve it? The HTC web page doesn't offer me drivers to install. Also noticed in /etc/udev/rules.d/..android.rules there is nothing about Sensation. Seems it recognises my nexus 7 though.. Edit: Tried my nexus.. got List of devices attached 901839238298923 offline So it doesn't even work with that.. confusing.. Any help would be appreciated. Thanks, B

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  • java.lang.NoClassDefFoundError thrown with my own packages in Android 1.5

    - by TiGer
    Hi, I have developed an application which has several packages within it's project... A class in one of those packages is called right away in the first line of code, which throws the dreaded java.lang.NoClassDefFoundError error... I don't get it, the package simply is within the project, and it works fine on my Android 1.6 device, but won't work with my 1.5 device... I do have to say that the project was originally set for 1.6, but then I changed the within the manifest from 4 to 3... Is that bad practice ? Or maybe it has nothing to do with the platform version ? Also I do get these lines as wel from the DDMS : 05-04 17:24:59.921: WARN/dalvikvm(2041): VFY: unable to resolve static field 2 (MANUFACTURER) in Landroid/os/Build; 05-04 17:24:59.921: WARN/dalvikvm(2041): VFY: rejecting opcode 0x62 at 0x0034 05-04 17:24:59.921: WARN/dalvikvm(2041): VFY: rejected Lmobilaria/android/managementModule/Management;.getDeviceSpecifics ()V 05-04 17:24:59.921: WARN/dalvikvm(2041): Verifier rejected class Lmobilaria/android/managementModule/Management; Thats the ManagementModule which also tries to retrieve several info-fields of the device itself... Again, this works just fine on the 1.6 device, even though thats a development device whilst my 1.5 device is a non-development device...

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  • No class def found error for JUnit Test on android

    - by J Bellamy
    I am having some very bizarre behaviour. I have a large number of test cases for my Android application, and they all work except for one. When I run this one I get a java.lang.NoClassDefFoundError: org.JUnit.test Yes, I have the JUnit 4 library imported into the project, and my other JUnit tests are running without any problems. What is particularly bizarre is that before I hit this problem I had an error in my code- basically, I tried writing a file to a read only folder. When that occurred, the JUnitTest would execute up to the point where it would hit an IO exception for accessing a part of memory it cannot access. I fix this problem, and suddenly the Android emulator doesn't seem to know what org.JUnit.test is. I have examined the run configuration for this test class, and it is the same as my others. It is in the same folder as the other tests as well. It also uses the same import statements. Any idea on what is going on? I am using the Android 10 emulator, and eclipse version 3.7.2. Edit: To clarify, the error I get appears on Logcat and not in my Eclipse project.

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  • Inconsistent canvas drawing in Android browser

    - by user2943466
    In putting together a small canvas app I've stumbled across a weird behavior that only seems to occur in the default browser in Android. When drawing to a canvas that has the globalCompositeOperation set to 'destination-out' to act as the 'eraser' tool, Android browser sometimes acts as expected, sometimes does not update the pixels in the canvas at all. the setup: context.clearRect(0,0, canvas.width, canvas.height); context.drawImage(img, 0, 0, canvas.width, canvas.height); context.globalCompositeOperation = 'destination-out'; draw a circle to erase pixels from the canvas: context.fillStyle = '#FFFFFF'; context.beginPath(); context.arc(x,y,25,0,TWO_PI,true); context.fill(); context.closePath(); a small demo to illustrate the issue can be seen here: http://gumbojuice.com/files/source-out/ and the javascript is here: http://gumbojuice.com/files/source-out/js/main.js this has been tested in multiple desktop and mobile browsers and behaves as expected. On Android native browser after refreshing the page sometimes it works, sometimes nothing happens. I've seen other hacks that move the canvas by a pixel in order to force a redraw but this is not an ideal solution.. Thanks all.

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  • Tips on refactoring an Android prototype

    - by Brad
    I have an Android project I've inherited from another developer. The original code was hacked together using a single View and a single Activity. The view class has a State variable that is switched on during input and rendering. Each "screen" is a single bitmap rendered directly onto the screen. There are no layouts used at all. To make things even worse each variable in both the View and Activity classes were all declared public static and would access each other frequently. I've reworked the code so it is now somewhat manageable, but it's still in those original two classes. This is my first decently sized Android app so I'm not completely sure where to go next. From the looks of things, each "screen" should have its own View and Activity. Is this the general practice? If so I need some way to share data between the separate Activities. I've read suggestions to use a Singleton class that holds generic data. Is there any other ways that are more built into the Android framework? Thanks in advance.

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  • How to approach socket programming between C# -> Java (Android)

    - by Alex
    I've recently knocked up a server/client app for Windows & Android that allows one to send a file from Windows to an android phone over a socket connection. It works great for a single file but trying to send multiple files over in a single stream is causing me problems. I've also realised that aside from the binary data, I will need to send messages over the socket to indicate error states and other application messages. I have little experience with network programming and and wondering what is the best way forward. Basically the C# server side of the app just goes into a listening state and uses Socket.SendFile to transmit the file. On Android I use the standard Java Socket.getInputStream() to receive the file. That works great for a single file transfer, but how should I handle multiple files and error/messaging information? Do I need to use a different socket for each file? Should I be using a higher level framework to handle this or can I send everything over the single socket? Any other suggestions for frameworks or learning materials?

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  • Android Game Development. Async Task. Loading Bitmap Images Sounds

    - by user2534694
    Im working on this game for android. And wanted to know if my thread architecture was right or wrong. Basically, what is happening is, i am loading All the bitmaps,sounds etc in the initializevariables() method. But sometimes the game crashes and sometimes it doesnt. So i decided to use async task. But that doesnt seem to work either (i too loads at times and crashes at times) @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setFullScreen(); initializeVariables(); new initVariables().execute(); // setContentView(ourV); } private void setFullScreen() { requestWindowFeature(Window.FEATURE_NO_TITLE); getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN); getWindow().setFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON, WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON ); } private void initializeVariables() { ourV=new OurView(this); stats = getSharedPreferences(filename, 0); ballPic = BitmapFactory.decodeResource(getResources(), R.drawable.ball5); platform = BitmapFactory.decodeResource(getResources(), R.drawable.platform3); gameB = BitmapFactory.decodeResource(getResources(), R.drawable.game_back2); waves = BitmapFactory.decodeResource(getResources(), R.drawable.waves); play = BitmapFactory.decodeResource(getResources(), R.drawable.play_icon); pause = BitmapFactory.decodeResource(getResources(), R.drawable.pause_icon); platform2 = BitmapFactory.decodeResource(getResources(), R.drawable.platform4); countdown = BitmapFactory.decodeResource(getResources(), R.drawable.countdown); bubbles = BitmapFactory.decodeResource(getResources(), R.drawable.waves_bubbles); backgroundMusic = MediaPlayer.create(this, R.raw.music); jump = MediaPlayer.create(this, R.raw.jump); click = MediaPlayer.create(this, R.raw.jump_crack); sm = (SensorManager) getSystemService(SENSOR_SERVICE); acc = sm.getDefaultSensor(Sensor.TYPE_ACCELEROMETER); sm.registerListener(this, acc, SensorManager.SENSOR_DELAY_GAME); ourV.setOnTouchListener(this); dialog = new Dialog(this,android.R.style.Theme_Translucent_NoTitleBar_Fullscreen); dialog.setContentView(R.layout.pausescreen); dialog.hide(); dialog.setOnDismissListener(this); resume = (Button) dialog.findViewById(R.id.bContinue); menu = (Button) dialog.findViewById(R.id.bMainMenu); newTry = (Button) dialog.findViewById(R.id.bNewTry); tv_time = (TextView) dialog.findViewById(R.id.tv_time); tv_day = (TextView) dialog.findViewById(R.id.tv_day); tv_date = (TextView) dialog.findViewById(R.id.tv_date); resume.setOnClickListener(this); menu.setOnClickListener(this); newTry.setOnClickListener(this); } @Override protected void onResume() { //if its running the first time it goes in the brackets if(firstStart) { ourV.onResume(); firstStart=false; } } Now what onResume in ourV does is , its responsible for starting the thread //this is ourV.onResume public void onResume() { t=new Thread(this); isRunning=true; t.start(); } Now what I want is to initialise all bitmaps sounds etc in the async background method public class initVariables extends AsyncTask<Void, Integer, Void> { ProgressDialog pd; @Override protected void onPreExecute() { pd = new ProgressDialog(GameActivity.this); pd.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL); pd.setMax(100); pd.show(); } @Override protected Void doInBackground(Void... arg0) { synchronized (this) { for(int i=0;i<20;i++) { publishProgress(5); try { Thread.sleep(89); } catch (InterruptedException e) { // TODO Auto-generated catch block e.printStackTrace(); } } } return null; } @Override protected void onProgressUpdate(Integer... values) { pd.incrementProgressBy(values[0]); } @Override protected void onPostExecute(Void result) { pd.dismiss(); setContentView(ourV); } } Now since I am new to this. You could tellme maybe if async is not required for such stuff and there is another way of doing it normally.

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  • Solution Factory for Visual Studio 2010

    - by Mendy
    I love the idea behind Solution Factory project. But, unfortunately this project have a few bugs. Is anyone using it successfully with visual studio 2010? Is there any other better option for the same task? (of creating a new project based on existed one).

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  • App.Config Transformation for Visual Studio 2010?

    - by Amitabh
    For Visual Studio 2010 Web based application we have Config Transformation features by which we can maintain multiple configuration files for different environments. But the same feature is not available for App.Config files for Windows Services/WinForms or Console Application. There is a workaround available as suggested on the following link. http://vishaljoshi.blogspot.com/2010/05/applying-xdt-magic-to-appconfig.html However it is not straightforward and requires no of steps. Is there an easier way to achieve the same for App.Config files?

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  • Visual Studio 2008: Start custom build target via project/solution context menu - without add-in

    - by Achim
    I have a custom build target in a visual studio 2008 c# project. Is there a simple way to add a context menu item to the project, so that the custom build target can be executed via the ide? The build target is not integrated into the default build process and has to be started by hand. This step should be simple for all developers and should not force them to execute msbuild from the command line. Any hint for a simple, working solution? regards, Achim

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  • Using zend studio with codeigniter

    - by Nicole Adler
    I want to use Zend Studio for a project built on CodeIgniter. But I want to be able to use the debugging functionality of Zend. Because of that, I cant seem to get the debugger to work properly cause it doesnt "understand" codeigniter. So, in order for the setup to work, do I need to install Zend server, so that the debugging is done serverside? Can someone explain this to me a bit? Thank you.

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  • Visual studio keyboard shortcuts cheat sheet - desktop size

    - by nailitdown
    OK - this is pretty specific, i'm looking for a cheat sheet for visual studio keyboard shortcuts that I can set as my desktop bg. so, something in a modest 1280 x 1024. Something like this; http://www.microsoft.com/downloads/details.aspx?FamilyID=c15d210d-a926-46a8-a586-31f8a2e576fe&DisplayLang=en but more succinct. Anyone got juicy linkage? Is this a DIY job?

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  • Android "Hello World" tutorial program. Error: [Parse Error] There is a problem parsing the package

    - by ConfusedDeveloper
    Today I decided to start developing for the Android OS. I went on their website, downloaded all the required software (Eclipse, The Android SDK, ADT Plugin for Eclipse etc.). I followed the "Hello World" tutorial supplied (link text). I have it using the Android SDK 2.1. The program worked almost flawlessly. It runs fine on the Android emulator, but doesn't install on any Android phones. I don't own an Android phone, so I had three of my friends try to install the program on theirs. The phones we used were: ROOTED G1 running 2.1 Droid running 2.1 Another Droid running 2.1 I emailed the .apk to myself in gmail, and accessed it via the Android emulator. It ran and installed the package just fine. However, when my friends tried to install it on their phones, they were all met with this error: "[Parse Error] There is a problem parsing the package" I'm wondering if anyone has any suggestions as to what may be wrong. Thanks for your help.

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  • Using ILDASM with Visual Studio 2008

    - by pianoman
    I just installed Visual Studio 2008, and am looking to use the Microsoft Intermediate Language Disassembler (ILDASM.exe) to look at some DLLs. Problem is, "ildasm" is not recognized on the command line, and I cannot find ildasm.exe anywhere in my VS 2008 install directory (e.g. c:\programs\Visual_Studio_9.0\). Any ideas? UPDATE: Found it! At C:\Program Files\Microsoft SDKs\Windows\v6.0A\bin This answer helped.

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