Android App Crashes after Sharing using Facebook D

Question

I'm trying to integrate Facebook SDK into an Android project. I'm posting a wall message in the Facebook Dialog, when I hit "Share", the message gets posted successfully on my Facebook wall. But my game still crashes!

I call it from my main class that extends Activity. To popup the facebook UI dialogs, I use runOnUiThread. (AsyncTask doesn't work in my code.)

public static int fbShareScores( final String sBody ) 
{
try 
{   
  oThis.runOnUiThread ( 
    new Runnable ( ) 
    { 
      @Override
      public void run ( ) 
      { 
        Bundle params = new Bundle();
        params.putString("caption", "Caption");
        params.putString("description", sBody);
    params.putString("picture", URL_TO_PNG);
        params.putString("name", "Name");
        oThis.mFacebook.dialog(oThis, "feed", params, null);
      } 
    } 
  );
}
catch ( Exception e ) 
{ 
  Log.d(Globals.sApplicationName, "share scores: Dialog: " + e.getMessage());
}

return 1;
}

Here are my errors from logcat:

D/Facebook-WebView(957): Webview loading URL: https://m.facebook.com/dialog/feed W/AudioFlinger(32): write blocked for 80 msecs, 275 delayed writes, thread 0xff88 D/dalvikvm(957): GC_CONCURRENT freed 539K, 15% free 7403K/8647K, paused 3ms+47ms D/webviewglue(957): nativeDestroy view: 0x925250 D/Facebook-WebView(957): Redirect URL: fbconnect://success?post_id=570020602_418386674846932 D/AndroidRuntime(957): Shutting down VM W/dalvikvm(957): threadid=1: thread exiting with uncaught exception (group=0x40014760) E/AndroidRuntime(957): FATAL EXCEPTION: main E/AndroidRuntime(957): java.lang.NullPointerException E/AndroidRuntime(957): at com.facebook.android.FbDialog$FbWebViewClient.shouldOverrideUrlLoading(FbDialog.java:143) E/AndroidRuntime(957): at android.webkit.CallbackProxy.uiOverrideUrlLoading(CallbackProxy.java:219) E/AndroidRuntime(957): at android.webkit.CallbackProxy.handleMessage(CallbackProxy.java:319) E/AndroidRuntime(957): at android.os.Handler.dispatchMessage(Handler.java:99) E/AndroidRuntime(957): at android.os.Looper.loop(Looper.java:126) E/AndroidRuntime(957): at android.app.ActivityThread.main(ActivityThread.java:3997) E/AndroidRuntime(957): at java.lang.reflect.Method.invokeNative(Native Method) E/AndroidRuntime(957): at java.lang.reflect.Method.invoke(Method.java:491) E/AndroidRuntime(957): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:841) E/AndroidRuntime(957): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:599) E/AndroidRuntime(957): at dalvik.system.NativeStart.main(Native Method) W/ActivityManager(67): Force finishing activity com.companyname.mainclassname/.MainClassName

Answer 1

The error is gone when I change the line in the above code to:

oThis.mFacebook.dialog(oThis, "feed", params, new PostStatusDialogListener());

Then add a new DialogListener:

public class PostStatusDialogListener implements DialogListener 
{
  @Override
  public void onComplete(Bundle values) {
    Log.d(Globals.sApplicationName, "PostStatusDialogListener::onComplete");
  }

  @Override
  public void onFacebookError(FacebookError error) {
    Log.d(Globals.sApplicationName, "PostStatusDialogListener::onFacebookError: " + error.getMessage());
  }

  @Override
  public void onError(DialogError error) {
    Log.d(Globals.sApplicationName, "PostStatusDialogListener::DialogError: " + error.getMessage());
  }

  @Override
  public void onCancel() {
    Log.d(Globals.sApplicationName, "PostStatusDialogListener::onCancel");
  }
}