Use `PackageManager` to get an `ApplicationInfo` object on your application, and check the `flags` field for `FLAG_DEBUGGABLE`.

    boolean isDebuggable = (0 != (getApplicationInfo().flags &amp; ApplicationInfo.FLAG_DEBUGGABLE));

You can now use the static boolean field `BuildConfig.DEBUG` to achieve the same thing. This class is generated during compilation and can be seen in your gen folder.



I want to convert `List&lt;String&gt;` to `List&lt;Object&gt;`.

One of the existing methods is returning `List&lt;String&gt;` and I want to convert it to `List&lt;Object&gt;`.
Is there a direct way in Java other then iterating over and converting element by element?

How to Convert List&lt;String&gt; to List&lt;Object&gt;

Is it possible to write the [Y Combinator][1] in Haskell?

It seems like it would have an infinitely recursive type. 

     Y :: f -&gt; b -&gt; c
     where f :: (f -&gt; b -&gt; c)

or something.  Even a simple slightly factored factorial

    factMaker _ 0 = 1
    factMaker fn n = n * ((fn fn) (n -1)
    
    {- to be called as
    (factMaker factMaker) 5
    -}

fails with &quot;Occurs check: cannot construct the infinite type: t = t -&gt; t2 -&gt; t1&quot;


(The Y combinator looks like this

    (define Y
        (lambda (X)
          ((lambda (procedure)
             (X (lambda (arg) ((procedure procedure) arg))))
           (lambda (procedure)
             (X (lambda (arg) ((procedure procedure) arg)))))))


in scheme)
Or, more succinctly as

    (λ (f) ((λ (x) (f (λ (a) ((x x) a))))
            (λ (x) (f (λ (a) ((x x) a))))))

For the applicative order
And

    (λ (f) ((λ (x) (f (x x)))
            (λ (x) (f (x x)))))

Which is just a eta contraction away for the lazy version.

If you prefer short variable names.

  [1]: http://www.ece.uc.edu/~franco/C511/html/Scheme/ycomb.html

Y Combinator in Haskell

I&#39;ve written a wrapper on top of Log.java that is provided by android. My Class will add some other application level features in Logs.

Now the things is that I want to check from the code whether &quot;debuggable&quot; is set to &#39;true&#39; or &#39;false&#39; in androidManifest.xml file. 

Can I do that? If yes, how?

Getting &quot;debuggable&quot; value of androidManifest from code?

I've written a wrapper on top of Log.java that is provided by android. My Class will add some other application level features in Logs.
Now the things is that I want to check from the code whether "debuggable" is set to 'true' or 'false' in androidManifest.xml file.
Can I do that? If yes, how?

Whenever I try to add a 9-patch image to the `\drawable` folder in my project, I get the same error:

    ERROR: 9-patch image C:\...\res\drawable\appwidget.9.png malformed.
    Frame pixels must be either solid or transparent (not intermediate alphas).
    Found at pixel #3 along top edge. Failure processing PNG image
    C:\...\res\drawable\appwidget.9.png

The weird thing in this example is that I&#39;ve got this image from the &quot;android-g1-icon&quot; images found in the SDK resources, so it is supposed to be OK. The same happened with any 9-patch image I&#39;ve tried so far. What could be wrong?


9-patch image error in Android

Is there a simple way to disable a user interacting with an activity.
To be done when there is an action running (and a spinning progress bar in the title bar)

EDIT: As it seems I was not clear enough I meant to say: while I already have a spinning progress bar, the user is still able to push any button on the activity, I want to disable the user from being able to do that while the task is running. I do not want to however disable each item on the screen one by one.

Thanks, Jason

Disable a whole activity from user action

I want to add a &quot;search&quot; icon to appear inside an `EditText` in the left edge? such as search box in Facebook Android app?


How to add icon inside EditText view in Android ?

I want to turn off displaying &quot;Suggested Words&quot; on the soft/virtual keyboard when someone is using my application (only on certain `Activities`). For the default Android keyboard, this can be found under &#39;Settings&#39; (under Word Suggestion Settings).

Is there a way to disable it only within your application, without requiring the user to manually go and do it? I basically want the user to type words without providing any hints.

Thanks!

How to disable displaying &quot;suggestions&quot; on the Soft Keyboard

Now I am totally confused by this error message: **Android library projects cannot be launched.** 

I carefully checked the build path and library, everything seems &quot;OK&quot;, and there is no error on Problems view, however, when I tried to run my application as an Android project, it failed and showed that message.

Any explanation for why it&#39;s happening is appreciated!

&quot;Android library projects cannot be launched&quot;?

I&#39;ve read through several posts about using this, but must be missing something as it&#39;s not working for me. My activity A has launchmode=&quot;singleTop&quot; in the manifest. It starts activity B, with launchmode=&quot;singleInstance&quot;. Activity B opens a browser and receives and intent back, which is why it&#39;s singleInstance. I&#39;m trying to override the back button so that the user is sent back to the activity A, and can then press Back to leave the activity, rather than back to activity B again.

    // activity B
    @Override
    public boolean onKeyDown(int keyCode, KeyEvent event)  {
     if (android.os.Build.VERSION.SDK_INT &lt; android.os.Build.VERSION_CODES.ECLAIR
      &amp;&amp; keyCode == KeyEvent.KEYCODE_BACK
      &amp;&amp; event.getRepeatCount() == 0) onBackPressed();
     return super.onKeyDown(keyCode, event);
    }
    @Override
    public void onBackPressed() {
     startActivity(new Intent(this, UI.class)
     .setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_NEW_TASK));
     return;
    }

After returning from the browser, the stack is...
A,B,Browser,B

I expect this code to change the stack to...
A
... so that pressing back once more takes the user back to the Home Screen.

Instead it seems to change the stack to...
A,B,Browser,B,A
...as though those flags aren&#39;t there.

I tried calling finish() in activity B after startActivity, but then the back button takes me back to the browser again!

What am I missing?


How do you use Intent.FLAG_ACTIVITY_CLEAR_TOP to clear the Activity Stack?

I would like to have a way to reference the project&#39;s manifest version number in the main part of the code. What I have been doing up until now is to link the version number in a String XML file to the manifest (@string/Version). What I would like to do is to do it the other way around, link a string XML variable to the version in the manifest. The reason? I&#39;d like to only have to change the version number in one location, the manifest file. Is there any way to do this? Thanks!

How can you get the Manifest Version number from the App&#39;s (Layout) XML variables?

I need to figure out how to get or make a build number for my Android application. I need the build number to display in the UI. 

Do I have to do something with `AndroidManifest.xml`?


How can you get the build/version number of your Android application?

I&#39;m kind of a noob at programming for the Android OS.  I noticed in the books I have been reading that the authors have placed a &quot;dot&quot; in front of the activity name when registering their activities in the manifest.  I&#39;ve looked around the Android developer site and I can&#39;t figure out why we need the &quot;dot&quot;.  Does the &quot;dot&quot; actually server a purpose? Do I need it?  I have included an example below.  Notice the &quot;dot&quot; before &quot;NewActivity&quot;:

    &lt;activity android:name=&quot;.NewActivity&quot;&gt;&lt;/activity&gt;

What&#39;s the &quot;dot&quot; for when registering an Activity

I want to know how to parse the AndroidManifest.xml file in order to get the Application Version Number through code. ***android:versionName***

Content Type	Original Author	Original Content on Stackoverflow
Question	ABDroids	View Question on Stackoverflow
Solution 1 - Android	CommonsWare	View Answer on Stackoverflow
Solution 2 - Android	Snicolas	View Answer on Stackoverflow

Getting "debuggable" value of androidManifest from code?

Android Problem Overview

Android Solutions

Solution 1 - Android

Solution 2 - Android

Y Combinator in Haskell

How to Convert List<String> to List<Object>

Attributions