android-context

Is there any way to dynamically view the application specific cache in Android? I'm saving images to the cache (/data/data/my_app_package/cache) and I'm 99% sure they're saving there, but not sure how long they're staying around. When I look in the cache using the DDMS File Explorer within Eclipse, it's always empty. I've also tried examining the appropriate cache dir in ADB and again it's always empty. Any suggestions? Unless ADB is running as root (as it would on an emulator) you cannot generally view anything under /data unless an application which owns it has made it world readable.

I've been working with AsyncTasks in Android and I am dealing with an issue. Take a simple example, an Activity with one AsyncTask. The task on the background does not do anything spectacular, it just sleeps for 8 seconds. At the end of the AsyncTask in the onPostExecute() method I am just setting a button visibility status to View.VISIBLE, only to verify my results. Now, this works great until the user decides to change his phones orientation while the AsyncTask is working (within the 8 second sleep window). I understand the Android activity life cycle and I know the activity gets destroyed

I'd like to extend Application in my Android app. I've done this such that I've created an extended Application object called MyApplication and added it to the manifest. I'd now like to add some getters and setters to hold some information. It looks like I'll need to pass the application Context to any classes which do not contain a Context. For example, say I create a class called MyObject (in its own java file): public class MyObject { public void doStuff() { // do stuff } } How might I access MyApplication from doStuff()? It looks like I'll need to pass the application Context to MyObject.

I extended the Application class in order to create singleton-like object in android. in this object I have all the HTTP work with my server, and all the other activities can access it and call methods to GET, POST etc. Code: public class HttpManagerInstance extends Application { private HttpClient httpClient; private HttpGet get; @Override public void onCreate() { httpClient = new DefaultHttpClient(); get = new HttpGet("http://10.100.102.9:8000/users/"); super.onCreate(); } public Void getUsers() throws Exception { new executeRequest().execute(get); return null; } private class executeRequest

The background is : I'm using xposed framework to hook a third party app. When I hook method XXX, xposed gave me "ClassNotFound" error. I checked and found the method XXX is in a dex file and would be loaded by DexClassLoader on the run. To hook the method XXX, I need to change the default ClassLoader in xposed to DexClassLoader . To get a DexClassLoader instance, I need a Context instance of the third party app. Here comes the question: how to get the context instance? I searched stackoverflow and found someone said you can hook the method in Activity or Receiver to retrieve their context.

I am currently trying to call a method from a utility class that will reference a new cursor created for this utility method. Unfortunately, my new class will not let me create the cursor without context. I have tried numerous ways of passing context from the calling activity, but get null pointer exceptions in most cases. Here is the portion of my code: findViewById(R.id.button).setOnClickListener(new View.OnClickListener() { public void onClick(View v) { Tools.pickRandomItem(); } }); and in the Tools Class: public static void pickRandomItem() { Cursor cur = getContentResolver().query

I have class App which contain context of my Application . But when I compiled I got an error in other class in this line: App app = (App) getApplication(); Class App : import android.app.Application; import android.app.Notification; import android.app.NotificationManager; import android.app.PendingIntent; import android.content.Context; import android.content.Intent; import android.media.MediaPlayer; import android.support.v4.app.NotificationCompat; import android.util.Log; import com.example.Radio_KPI.R; import com.example.Radio_KPI.Utils.Const; public class App extends Application { private

Can you please tell me whats the best practice to pass activity or context to other instance(;) But..., What is better to pass? Activity or Context Is good idea to have the Activity as Global (public static Activity activity) here is my code. What would you change? (based on good android practices) Passing an Activity into another object that does not specifically require the Activity object is usually a bad idea. Activity extends Context so it works to satisfy a method that requires Context . In your case, you can get the Context from the View that is passed into the method. However, if you