android-4.2-jelly-bean

How do you access Android 4.2's developer settings when the method prescribed on their developer site does not work? I followed the directions on a Nexus 7 tablet. I went to Settings > About tablet , scrolled to the bottom of the screen, and clicked the Build Number 7 times. I was greeted with the message "Congratulations, you're now a developer." But apparently, I'm still not one. I checked Settings and scrolled all the way down to the bottom, but no Developer options were available. I reset the tablet and restarted it, with no result. When I click on Build Number again, it says "No need, you

Whenever I'm trying to load at least 4 mediaPlayers, one of them will corrupt the video it's trying to load and trigger an Android OS message "Can't play this video" Other information: For 3 mediaPlayers everything works fine. On other Android versions, different from 4.2, the same code with the same 4 video works. The 4 video can be played independently on the device. There is no format problem. After starting the program and getting the "Can't play this video" message, the video can no longer be played in any other application unless I reset the device. I tried this both with VideoViews or

I'm new in android programming and now i get a problem with my app. I intend to code a MediaPlayer application with feature: select a file from storage using intent then start playing that file. I use "MediaPlayer.create(context, uri)" method but currently i got error protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); //openFile(); Button openFile = (Button) this.findViewById(R.id.ButtonOpen); openFile.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { Intent chooseFile; Intent intent;

I need to programatically trigger text selection mode in a WebView, but the code I have used does not work on Jelly Bean? I have been using the following code but it no longer works on Android 4.1 (Jelly Bean) because WebView.selectText, emulateShiftHeld, and the key dispatch are no longer supported on Jelly Bean. Following code that works on all versions up to ICS is based on: How to enable the default highlight menus in android webview? public void selectAndCopyText() { try { // ICS WebView.class.getMethod("selectText").invoke(this); } catch (Exception e1) { try { Method m = WebView.class

I am developing an app for android which downloads points of interest from a server using JSON strings. Everything was working fine but since I have started testing on 4.2.1, I have been getting the following error: 01-28 15:32:14.167: E/AndroidRuntime(31174): FATAL EXCEPTION: AsyncTask #1 01-28 15:32:14.167: E/AndroidRuntime(31174): java.lang.RuntimeException: An error occured while executing doInBackground() 01-28 15:32:14.167: E/AndroidRuntime(31174): at android.os.AsyncTask$3.done(AsyncTask.java:299) 01-28 15:32:14.167: E/AndroidRuntime(31174): at java.util.concurrent.FutureTask

I have a pair of Android apps. One is a free 'reader' app and the other is a paid for 'Data' app with a text file in a sub directory of its assets. The reader app uses the following code to access the data app's text file: Intent myIntent = new Intent("myintent"); List<ResolveInfo> dataPacks = packageManager.queryIntentActivities(myIntent, 0); String packageName = dataPacks.get(0).activityInfo.packageName Resources res = packageManager.getResourcesForApplication(packageName); AssetManager assets = res.getAssets(); String[] dataFiles = assets.list("Data"); This has been working fine but apps