title: Cant add action bar to preference activity
body: <p>I want to add customized action bar in my Filter Activity which is a PreferenceActivity.</p>
  
  <p>Can I use addPreferencesFromResource() method with ActionBarActivity ???</p>
  
  <p>Every thing is working fine as my java file and xml file is correct. But there is no action bar, and when i attempt to call <em>getActionBar().setBackgroundDrawable(R.drawable.xyz);</em> there is a crash.
  Please help me out.</p>
  
  <p>here is my java code of the preference screen</p>
  
  <pre><code>import android.graphics.drawable.Drawable;
  import android.support.v7.app.ActionBarActivity;
  import android.os.Bundle;
  import android.preference.PreferenceActivity;
  
  public class Filter extends PreferenceActivity {
  
      @Override
      protected void onCreate(Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
          addPreferencesFromResource(R.xml.filter_screen);
          Drawable d=getResources().getDrawable(R.drawable.abfilter);
          getActionBar().setBackgroundDrawable(d);
  
      }
  } 
  </code></pre>
  
  <p>here is the logcat</p>
  
  <pre><code>11-22 16:18:13.377    7460-7460/com.example.avinash.swipetab D/dalvikvm﹕ Late-enabling CheckJNI
  11-22 16:18:13.481    7460-7460/com.example.avinash.swipetab W/ActivityThread﹕ Application com.example.avinash.swipetab is waiting for the debugger on port 8100...
  11-22 16:18:13.487    7460-7460/com.example.avinash.swipetab I/System.out﹕ Sending WAIT chunk
  11-22 16:18:13.494    7460-7468/com.example.avinash.swipetab I/dalvikvm﹕ Debugger is active
  11-22 16:18:13.687    7460-7460/com.example.avinash.swipetab I/System.out﹕ Debugger has connected
  11-22 16:18:13.688    7460-7460/com.example.avinash.swipetab I/System.out﹕ waiting for debugger to settle...
  11-22 16:18:13.888    7460-7460/com.example.avinash.swipetab I/System.out﹕ waiting for debugger to settle...
  11-22 16:18:14.088    7460-7460/com.example.avinash.swipetab I/System.out﹕ waiting for debugger to settle...
  11-22 16:18:14.289    7460-7460/com.example.avinash.swipetab I/System.out﹕ waiting for debugger to settle...
  11-22 16:18:14.489    7460-7460/com.example.avinash.swipetab I/System.out﹕ waiting for debugger to settle...
  11-22 16:18:14.689    7460-7460/com.example.avinash.swipetab I/System.out﹕ waiting for debugger to settle...
  11-22 16:18:14.889    7460-7460/com.example.avinash.swipetab I/System.out﹕ waiting for debugger to settle...
  11-22 16:18:15.090    7460-7460/com.example.avinash.swipetab I/System.out﹕ waiting for debugger to settle...
  11-22 16:18:15.290    7460-7460/com.example.avinash.swipetab I/System.out﹕ debugger has settled (1413)
  11-22 16:18:15.713    7460-7460/com.example.avinash.swipetab I/dalvikvm﹕ Could not find method android.view.ViewGroup.onNestedScrollAccepted, referenced from method android.support.v7.internal.widget.ActionBarOverlayLayout.onNestedScrollAccepted
  11-22 16:18:15.713    7460-7460/com.example.avinash.swipetab W/dalvikvm﹕ VFY: unable to resolve virtual method 11365: Landroid/view/ViewGroup;.onNestedScrollAccepted (Landroid/view/View;Landroid/view/View;I)V
  11-22 16:18:15.713    7460-7460/com.example.avinash.swipetab D/dalvikvm﹕ VFY: replacing opcode 0x6f at 0x0000
  11-22 16:18:15.714    7460-7460/com.example.avinash.swipetab I/dalvikvm﹕ Could not find method android.view.ViewGroup.onStopNestedScroll, referenced from method android.support.v7.internal.widget.ActionBarOverlayLayout.onStopNestedScroll
  11-22 16:18:15.714    7460-7460/com.example.avinash.swipetab W/dalvikvm﹕ VFY: unable to resolve virtual method 11371: Landroid/view/ViewGroup;.onStopNestedScroll (Landroid/view/View;)V
  11-22 16:18:15.714    7460-7460/com.example.avinash.swipetab D/dalvikvm﹕ VFY: replacing opcode 0x6f at 0x0000
  11-22 16:18:15.716    7460-7460/com.example.avinash.swipetab I/dalvikvm﹕ Could not find method android.support.v7.internal.widget.ActionBarOverlayLayout.stopNestedScroll, referenced from method android.support.v7.internal.widget.ActionBarOverlayLayout.setHideOnContentScrollEnabled
  11-22 16:18:15.716    7460-7460/com.example.avinash.swipetab W/dalvikvm﹕ VFY: unable to resolve virtual method 9059: Landroid/support/v7/internal/widget/ActionBarOverlayLayout;.stopNestedScroll ()V
  11-22 16:18:15.716    7460-7460/com.example.avinash.swipetab D/dalvikvm﹕ VFY: replacing opcode 0x6e at 0x000e
  11-22 16:18:15.734    7460-7460/com.example.avinash.swipetab I/dalvikvm﹕ Could not find method android.content.res.TypedArray.getChangingConfigurations, referenced from method android.support.v7.internal.widget.TintTypedArray.getChangingConfigurations
  11-22 16:18:15.734    7460-7460/com.example.avinash.swipetab W/dalvikvm﹕ VFY: unable to resolve virtual method 367: Landroid/content/res/TypedArray;.getChangingConfigurations ()I
  11-22 16:18:15.734    7460-7460/com.example.avinash.swipetab D/dalvikvm﹕ VFY: replacing opcode 0x6e at 0x0002
  11-22 16:18:15.736    7460-7460/com.example.avinash.swipetab I/dalvikvm﹕ Could not find method android.content.res.TypedArray.getType, referenced from method android.support.v7.internal.widget.TintTypedArray.getType
  11-22 16:18:15.736    7460-7460/com.example.avinash.swipetab W/dalvikvm﹕ VFY: unable to resolve virtual method 389: Landroid/content/res/TypedArray;.getType (I)I
  11-22 16:18:15.736    7460-7460/com.example.avinash.swipetab D/dalvikvm﹕ VFY: replacing opcode 0x6e at 0x0002
  11-22 16:18:15.886    7460-7460/com.example.avinash.swipetab D/dalvikvm﹕ GC_FOR_ALLOC freed 177K, 10% free 3028K/3328K, paused 10ms, total 10ms
  11-22 16:18:15.887    7460-7460/com.example.avinash.swipetab I/dalvikvm-heap﹕ Grow heap (frag case) to 3.681MB for 635812-byte allocation
  11-22 16:18:15.900    7460-7473/com.example.avinash.swipetab D/dalvikvm﹕ GC_FOR_ALLOC freed 8K, 8% free 3640K/3952K, paused 8ms, total 8ms
  11-22 16:18:16.124    7460-7460/com.example.avinash.swipetab D/dalvikvm﹕ GC_FOR_ALLOC freed 49K, 6% free 4040K/4272K, paused 10ms, total 10ms
  11-22 16:18:16.155    7460-7460/com.example.avinash.swipetab D/dalvikvm﹕ GC_FOR_ALLOC freed 323K, 13% free 3897K/4448K, paused 8ms, total 8ms
  11-22 16:18:16.220    7460-7460/com.example.avinash.swipetab D/dalvikvm﹕ GC_FOR_ALLOC freed 1K, 6% free 4220K/4448K, paused 9ms, total 9ms
  11-22 16:18:16.256    7460-7460/com.example.avinash.swipetab D/dalvikvm﹕ GC_FOR_ALLOC freed 318K, 12% free 4227K/4768K, paused 9ms, total 9ms
  11-22 16:18:16.297    7460-7460/com.example.avinash.swipetab D/dalvikvm﹕ GC_FOR_ALLOC freed &lt;1K, 5% free 4550K/4768K, paused 9ms, total 9ms
  11-22 16:18:16.375    7460-7460/com.example.avinash.swipetab D/dalvikvm﹕ GC_FOR_ALLOC freed 1K, 4% free 4887K/5088K, paused 9ms, total 9ms
  11-22 16:18:16.436    7460-7460/com.example.avinash.swipetab D/dalvikvm﹕ GC_FOR_ALLOC freed &lt;1K, 4% free 5217K/5408K, paused 9ms, total 9ms
  11-22 16:18:16.584    7460-7460/com.example.avinash.swipetab D/dalvikvm﹕ GC_FOR_ALLOC freed 1K, 3% free 5889K/6048K, paused 9ms, total 9ms
  11-22 16:18:16.641    7460-7460/com.example.avinash.swipetab E/﹕ appName=com.example.avinash.swipetab, acAppName=/system/bin/surfaceflinger
  11-22 16:18:16.641    7460-7460/com.example.avinash.swipetab E/﹕ 0
  11-22 16:18:16.645    7460-7460/com.example.avinash.swipetab I/MaliEGL﹕ [Mali]window_type=1, is_framebuffer=0, errnum = 0
  11-22 16:18:16.645    7460-7460/com.example.avinash.swipetab I/MaliEGL﹕ [Mali]surface-&gt;num_buffers=4, surface-&gt;num_frames=3, win_min_undequeued=1
  11-22 16:18:16.645    7460-7460/com.example.avinash.swipetab I/MaliEGL﹕ [Mali]max_allowed_dequeued_buffers=3
  11-22 16:18:16.649    7460-7460/com.example.avinash.swipetab D/OpenGLRenderer﹕ Enabling debug mode 0
  11-22 16:18:17.386    7460-7460/com.example.avinash.swipetab D/dalvikvm﹕ GC_FOR_ALLOC freed 173K, 5% free 6246K/6544K, paused 10ms, total 10ms
  11-22 16:18:17.471    7460-7460/com.example.avinash.swipetab D/dalvikvm﹕ GC_FOR_ALLOC freed 32K, 5% free 6989K/7312K, paused 9ms, total 9ms
  11-22 16:18:17.572    7460-7460/com.example.avinash.swipetab I/Choreographer﹕ Skipped 94 frames!  The application may be doing too much work on its main thread.
  11-22 16:18:21.307    7460-7460/com.example.avinash.swipetab D/dalvikvm﹕ GC_FOR_ALLOC freed 94K, 3% free 8280K/8500K, paused 12ms, total 12ms
  11-22 16:18:21.451    7460-7460/com.example.avinash.swipetab D/AndroidRuntime﹕ Shutting down VM
  11-22 16:18:21.451    7460-7460/com.example.avinash.swipetab W/dalvikvm﹕ threadid=1: thread exiting with uncaught exception (group=0x41541ba8)
  11-22 16:18:21.467    7460-7460/com.example.avinash.swipetab E/AndroidRuntime﹕ FATAL EXCEPTION: main
      Process: com.example.avinash.swipetab, PID: 7460
      java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.avinash.swipetab/com.example.avinash.swipetab.Filter}: java.lang.NullPointerException
              at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2184)
              at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2233)
              at android.app.ActivityThread.access$800(ActivityThread.java:135)
              at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
              at android.os.Handler.dispatchMessage(Handler.java:102)
              at android.os.Looper.loop(Looper.java:136)
              at android.app.ActivityThread.main(ActivityThread.java:5001)
              at java.lang.reflect.Method.invokeNative(Native Method)
              at java.lang.reflect.Method.invoke(Method.java:515)
              at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785)
              at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601)
              at dalvik.system.NativeStart.main(Native Method)
       Caused by: java.lang.NullPointerException
              at com.example.avinash.swipetab.Filter.onCreate(Filter.java:17)
              at android.app.Activity.performCreate(Activity.java:5231)
              at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
              at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2148)
              at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2233)
              at android.app.ActivityThread.access$800(ActivityThread.java:135)
              at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
              at android.os.Handler.dispatchMessage(Handler.java:102)
              at android.os.Looper.loop(Looper.java:136)
              at android.app.ActivityThread.main(ActivityThread.java:5001)
              at java.lang.reflect.Method.invokeNative(Native Method)
              at java.lang.reflect.Method.invoke(Method.java:515)
              at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785)
              at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601)
              at dalvik.system.NativeStart.main(Native Method)
  </code></pre>
  
  <p>Thanks in advance.</p>