Of course, never fails.  Found the solution about a minute after posting the above question... solution for those that may have had the same issue:

    ContextWrapper.getFilesDir()

Found [here][1].


  [1]: http://developer.android.com/reference/android/content/ContextWrapper.html#getFilesDir%28%29

You can try `Context.getApplicationInfo().dataDir`
if you want the package&#39;s persistent data folder. 

`getFilesDir()` returns a subroot of this.

To get the path of file in application package;

    ContextWrapper c = new ContextWrapper(this);
    Toast.makeText(this, c.getFilesDir().getPath(), Toast.LENGTH_LONG).show();

I&#39;m working with Intellij Idea 10 and Java 6 JDK Update 7. When I run `Build --&gt; Rebuild Project` command, and the (javac) compilation generates warnings, Idea doesn&#39;t display *what* those warnings exactly are in the `Messages` view. I just see an &quot;Information: XX warnings&quot; node, but no way to expand it to see the actual warnings. Or I just see a message &quot;Compilation completed successfully with XX warnings&quot; on the status bar. For errors, Idea displays the error information (error message, filename, line number etc.) automatically. How can I get it to work similarly with warnings?

(For the record, I&#39;ve already tried using additional command line parameters such as `-Xlint`, but it does not make a difference.)

How to get Intellij Idea to display compilation warnings?

So I edited my csproj file on an MVC 3 RTM application to set the following property:

    &lt;MvcBuildViews&gt;true&lt;/MvcBuildViews&gt;

This should cause my views to be complied during build and force a build error if my view is broken. This is the only change I made, however, when I try to build the application, I get the following error:

&gt;It is an error to use a section registered as allowDefinition=&#39;MachineToApplication&#39; beyond application level.  This error can be caused by a virtual directory not being configured as an application in IIS.

The project compiles and runs successfully if I change back to  false,

The following are the build tasks configured in the csproj file (these were never manually edited, they were added by Visual Studio 2010)

    &lt;Target Name=&quot;BeforeBuild&quot;&gt;
    &lt;/Target&gt;
    &lt;Target Name=&quot;AfterBuild&quot;&gt;
    &lt;/Target&gt; --&gt;
    &lt;Target Name=&quot;MvcBuildViews&quot; AfterTargets=&quot;AfterBuild&quot; Condition=&quot;&#39;$(MvcBuildViews)&#39;==&#39;true&#39;&quot;&gt;
      &lt;AspNetCompiler VirtualPath=&quot;temp&quot; PhysicalPath=&quot;$(WebProjectOutputDir)&quot; /&gt;
    &lt;/Target&gt;

Am I missing something here? How do I get MVC 3 / Visual Studio 2010 configured correctly to validate my views at build time?

MVCBuildViews not working correctly

A simple question, relating to the default &#39;home&#39; directory when an app writes to the internal memory. By default, any files created are placed by the OS (2.2) in:

    /data/data/your.package/files

When reading in files, the same default is used, when keeping in proper context via `openFileInput()`, `openFileOutput()`.  But if I need to check file existence, for instance, using the File class, I need to specify the whole path in the constructor.

I see there are `Environment.getDataDirectory()` (returns `/data`), `Environment.getRootDirectory()` (returns `/system`), etc, but nothing related to getting the app&#39;s &#39;home&#39; directory.

It&#39;s not a huge deal, but I&#39;d rather not hard-code the full path into my App for File to use (say the package name changes, say the path changes in a future OS release) if there is some way to reference the app&#39;s &#39;home&#39; directory programmatically.

Android Get Application&#39;s &#39;Home&#39; Data Directory

A simple question, relating to the default 'home' directory when an app writes to the internal memory. By default, any files created are placed by the OS (2.2) in:
<pre><code class="hljs language-kotlin">/data/data/your.package/files
</code></pre>
When reading in files, the same default is used, when keeping in proper context via <code>openFileInput()</code>, <code>openFileOutput()</code>. But if I need to check file existence, for instance, using the File class, I need to specify the whole path in the constructor.
I see there are <code>Environment.getDataDirectory()</code> (returns <code>/data</code>), <code>Environment.getRootDirectory()</code> (returns <code>/system</code>), etc, but nothing related to getting the app's 'home' directory.
It's not a huge deal, but I'd rather not hard-code the full path into my App for File to use (say the package name changes, say the path changes in a future OS release) if there is some way to reference the app's 'home' directory programmatically.

How can I get the screen width and height and use this value in:

    @Override protected void onMeasure(int widthSpecId, int heightSpecId) {
        Log.e(TAG, &quot;onMeasure&quot; + widthSpecId);
        setMeasuredDimension(SCREEN_WIDTH, SCREEN_HEIGHT - 
            game.findViewById(R.id.flag).getHeight());
    }

Get screen width and height in Android

I have written following code to add new contact in android phone book, it is working but when i open contact menu, i cannot see the new contact added. Can anyone help me to find out what&#39;s wrong here? 

    import android.app.Activity;
    import android.os.Bundle;
    
    import android.content.ContentResolver;
    import android.content.ContentValues;
    import android.provider.ContactsContract;
    
    import android.widget.TextView;
    import android.widget.Toast;

    public class AddContacts extends Activity {
        /** Called when the activity is first created. */
        @Override
        public void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.main);
            try {
    	        ContentResolver cr = this.getContentResolver();
    	        ContentValues cv = new ContentValues();
    	        cv.put(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME, &quot;New Name&quot;);
    	        cv.put(ContactsContract.CommonDataKinds.Phone.NUMBER, &quot;1234567890&quot;);
    	        cv.put(ContactsContract.CommonDataKinds.Phone.TYPE, ContactsContract.CommonDataKinds.Phone.TYPE_MOBILE);
    	        cr.insert(ContactsContract.RawContacts.CONTENT_URI, cv);
    	        
    	        Toast.makeText(this, &quot;Contact added&quot;, Toast.LENGTH_LONG).show();
            } catch(Exception e) {
            	TextView tv = new TextView(this);
            	tv.setText(e.toString());
            	setContentView(tv);
            }
        }
    }

How to add new contacts in android

Is there a way in Android to detect if the software (a.k.a. &quot;soft&quot;) keyboard is visible on screen?

How do I detect if software keyboard is visible on Android Device or not?

I would like to reference a string from another string in my strings.xml file, like below (specifically note the end of the &quot;message_text&quot; string content):

    &lt;?xml version=&quot;1.0&quot; encoding=&quot;utf-8&quot;?&gt;
    &lt;resources&gt;
        &lt;string name=&quot;button_text&quot;&gt;Add item&lt;/string&gt;
        &lt;string name=&quot;message_text&quot;&gt;You don&#39;t have any items yet! Add one by pressing the \&#39;@string/button_text\&#39; button.&lt;/string&gt;
    &lt;/resources&gt;

I&#39;ve tried the above syntax but then the text prints out the &quot;@string/button_text&quot; as clear text. Not what I want. I would like the message text to print &quot;You don&#39;t have any items yet! Add one by pressing the &#39;Add item&#39; button.&quot;

Is there any known way to achieve what I want? 

**RATIONALE:**&lt;br/&gt;
My application has a list of items, but when that list is empty I show a &quot;@android:id/empty&quot; TextView instead. The text in that TextView is to inform the user how to add a new item. I would like to make my layout fool-proof to changes (yes, I&#39;m the fool in question :-)

Reference one string from another string in strings.xml?

I have the following code to take a video as a raw resource, start the video and loop it but I need the video to loop seamlessly as of now when it comes to an end of the clip and starts the clip again the transition between causes a flicker for a split second, which I really can&#39;t have for my app. 

    public class Example extends Activity {
    	VideoView vv;
        /** Called when the activity is first created. */
        @Override
        public void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.main);
            
            vv = (VideoView)findViewById(R.id.VideoView01);

            //Video Loop
            vv.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
                public void onCompletion(MediaPlayer mp) {
                    vv.start(); //need to make transition seamless.
                }
            });

            Uri uri = Uri.parse(&quot;android.resource://com.example/&quot;
                    + R.raw.video);
            
            vv.setVideoURI(uri);
            vv.requestFocus();    
            vv.start();
        }
    }

The clip is only 22 seconds long but was created to be seamless so it is possible to work without the delay.

Seamless video Loop with VideoView

I couldn&#39;t find a satisfying answer to this, so here we go: what&#39;s the deal with `Activity/Service.getApplication()` and `Context.getApplicationContext()`?

In our application, both return the same object. In an `ActivityTestCase` however, mocking the application will make `getApplication()` come back with the mock, but `getApplicationContext` will still return a different context instance (one injected by Android). Is that a bug? Is it on purpose?

I don&#39;t even understand the difference in the first place. Are there cases outside a test suite where both calls may come back with different objects? When and why? Moreover, why is `getApplication` defined on `Activity` and `Service`, but not on `Context`? Shouldn&#39;t there always be a valid application instance available from *anywhere*?

getApplication() vs. getApplicationContext()

If I have a reference to `Context`, is it possible to finish the current activity? 

**I don&#39;t have the reference to current activity.**

Close the current activity when you only have a reference to Context

Getting the context inside `onClick(View view)`, the callback for a button&#39;s `onClickListener()`, is easy:

    view.getContext()

But I can&#39;t figure out how to get the context inside `onClick(DialogInterface v, int buttonId)`, the callback for a **dialog**&#39;s `onClickListener`

    public class MainActivity extends Activity implements android.content.DialogInterface.OnClickListener

Is this possible?

Get context inside onClick(DialogInterface v, int buttonId)?

My Activity is trying to create an AlertDialog which requires a Context as a parameter. This works as expected if I use:

    AlertDialog.Builder builder = new AlertDialog.Builder(this);

However, I am leery of using &quot;this&quot; as a context due to the potential for memory leaks when Activity is destroyed and recreated even during something simple like a screen rotation. From a [related post on the Android developer&#39;s blog][1]: 

&gt; There are two easy ways to avoid context-related memory leaks. The most obvious one is to avoid escaping the context outside of its own scope. The example above showed the case of a static reference but inner classes and their implicit reference to the outer class can be equally dangerous. The second solution is to use the Application context. This context will live as long as your application is alive and does not depend on the activities life cycle. If you plan on keeping long-lived objects that need a context, remember the application object. You can obtain it easily by calling Context.getApplicationContext() or Activity.getApplication().


But for the `AlertDialog()` neither `getApplicationContext()` or `getApplication()` is acceptable as a Context, as it throws the exception: 

&gt; &quot;Unable to add window — token null is not for an application”

per references: [1][2], [2][3], [3][4], etc.

So, should this really be considered a &quot;bug&quot;, since we are officially advised to use `Activity.getApplication()` and yet it doesn&#39;t function as advertised?

Jim



  [1]: http://android-developers.blogspot.com/2009/01/avoiding-memory-leaks.html
  [2]: https://stackoverflow.com/questions/1561803/android-progressdialog-show-crashes-with-getapplicationcontext
  [3]: https://stackoverflow.com/questions/2634991/android-1-6-android-view-windowmanagerbadtokenexception-unable-to-add-window
  [4]: http://groups.google.com/group/android-developers/browse_thread/thread/7a648edddccf6f7d

Dialog throwing &quot;Unable to add window — token null is not for an application” with getApplication() as context

I have a fragment (F1) with a public method like this

    public void asd() {
        if (getActivity() == null) {
            Log.d(&quot;yes&quot;,&quot;it is null&quot;);
        }
    }

and yes when I call it (from the Activity), it is null...

    FragmentTransaction transaction1 = getSupportFragmentManager().beginTransaction();
    F1 f1 = new F1();
    transaction1.replace(R.id.upperPart, f1);
    transaction1.commit();
    f1.asd();

It must be something that I am doing very wrong, but I don&#39;t know what that is.


getActivity() returns null in Fragment function

Is the following the best way of obtaining the running user&#39;s home directory? Or is there a specific function that I&#39;ve ovelooked?

    os.Getenv(&quot;HOME&quot;)

If the above is correct, does anyone happen to know whether this approach is guaranteed to work on non-Linux platforms, e.g. Windows?

Obtain user&#39;s home directory

Process.platform returns &quot;win32&quot; for Windows. On Windows a user&#39;s home directory might be C:\Users\[USERNAME] or C:\Documents and Settings\[USERNAME] depending on which version of Windows is being used. On Unix this isn&#39;t an issue.

Node.js - Find home directory in platform agnostic way

I&#39;m trying to use the command prompt to move some files,
I am used to the linux terminal where I use `~` to specify the my home directory
I&#39;ve looked everywhere but I couldn&#39;t seem to find it for windows command prompt (`Documents and Settings\[user]`)

What is the alternative for ~ (user&#39;s home directory) on Windows command prompt?

Hi I&#39;m trying to copy my rails_projects directory from haseebjaved/Desktop/rails_projects to my home directory, which is haseebjaved.

How can I do this via the Command Line?

Also, can I see my home directory on the UI or only via the Command Line in Mac OS X? 

Is it possible to copy directories to and from my home directory via the UI? Or only via Command Line?

Thank you

Content Type	Original Author	Original Content on Stackoverflow
Question	Unpossible	View Question on Stackoverflow
Solution 1 - Android	Unpossible	View Answer on Stackoverflow
Solution 2 - Android	Learn OpenGL ES	View Answer on Stackoverflow
Solution 3 - Android	Ali Imran	View Answer on Stackoverflow

Android Get Application's 'Home' Data Directory

Android Problem Overview

Android Solutions

Solution 1 - Android

Solution 2 - Android

Solution 3 - Android

MVCBuildViews not working correctly

How to get Intellij Idea to display compilation warnings?

Attributions