How to fix the BadTokenException error in android??

Question

I have developed an application in which i have 4 tabs A,B,C,D. Each of the Tab contains an Activity. In the fourth tab D I have added an ActivityGroup in which I am having 3 more Activities X,Y,Z.In the fourth Tab where I have added the activity group I am getting StackOverflow error.Please help me out in fixing this error.

this is my stackTrace:--

06-30 18:22:26.521: ERROR/AndroidRuntime(1293): android.view.WindowManager$BadTokenException: Unable to add window -- token android.app.LocalActivityManager$LocalActivityRecord@62668448 is not valid; is your activity running?
06-30 18:22:26.521: ERROR/AndroidRuntime(1293):     at android.view.ViewRoot.setView(ViewRoot.java:468)
06-30 18:22:26.521: ERROR/AndroidRuntime(1293):     at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:177)
06-30 18:22:26.521: ERROR/AndroidRuntime(1293):     at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:91)
06-30 18:22:26.521: ERROR/AndroidRuntime(1293):     at android.view.Window$LocalWindowManager.addView(Window.java:424)
06-30 18:22:26.521: ERROR/AndroidRuntime(1293):     at android.app.Dialog.show(Dialog.java:239)
06-30 18:22:26.521: ERROR/AndroidRuntime(1293):     at android.app.AlertDialog$Builder.show(AlertDialog.java:802)
06-30 18:22:26.521: ERROR/AndroidRuntime(1293):     at android.widget.Spinner.performClick(Spinner.java:257)
06-30 18:22:26.521: ERROR/AndroidRuntime(1293):     at android.view.View.onTouchEvent(View.java:4179)
06-30 18:22:26.521: ERROR/AndroidRuntime(1293):     at android.view.View.dispatchTouchEvent(View.java:3709)
06-30 18:22:26.521: ERROR/AndroidRuntime(1293):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:852)
06-30 18:22:26.521: ERROR/AndroidRuntime(1293):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884)
06-30 18:22:26.521: ERROR/AndroidRuntime(1293):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884)
06-30 18:22:26.521: ERROR/AndroidRuntime(1293):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884)
06-30 18:22:26.521: ERROR/AndroidRuntime(1293):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884)
06-30 18:22:26.521: ERROR/AndroidRuntime(1293):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884)
06-30 18:22:26.521: ERROR/AndroidRuntime(1293):     at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:1659)
06-30 18:22:26.521: ERROR/AndroidRuntime(1293):     at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1107)
06-30 18:22:26.521: ERROR/AndroidRuntime(1293):     at android.app.Activity.dispatchTouchEvent(Activity.java:2061)
06-30 18:22:26.521: ERROR/AndroidRuntime(1293):     at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:1643)
06-30 18:22:26.521: ERROR/AndroidRuntime(1293):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884)
06-30 18:22:26.521: ERROR/AndroidRuntime(1293):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884)
06-30 18:22:26.521: ERROR/AndroidRuntime(1293):     at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:1659)
06-30 18:22:26.521: ERROR/AndroidRuntime(1293):     at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1107)
06-30 18:22:26.521: ERROR/AndroidRuntime(1293):     at android.app.Activity.dispatchTouchEvent(Activity.java:2061)
06-30 18:22:26.521: ERROR/AndroidRuntime(1293):     at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:1643)
06-30 18:22:26.521: ERROR/AndroidRuntime(1293):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884)
06-30 18:22:26.521: ERROR/AndroidRuntime(1293):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884)
06-30 18:22:26.521: ERROR/AndroidRuntime(1293):     at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:1659)
06-30 18:22:26.521: ERROR/AndroidRuntime(1293):     at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1107)
06-30 18:22:26.521: ERROR/AndroidRuntime(1293):     at android.app.Activity.dispatchTouchEvent(Activity.java:2061)
06-30 18:22:26.521: ERROR/AndroidRuntime(1293):     at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:1643)
06-30 18:22:26.521: ERROR/AndroidRuntime(1293):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884)
06-30 18:22:26.521: ERROR/AndroidRuntime(1293):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884)
06-30 18:22:26.521: ERROR/AndroidRuntime(1293):     at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:1659)
06-30 18:22:26.521: ERROR/AndroidRuntime(1293):     at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1107)
06-30 18:22:26.521: ERROR/AndroidRuntime(1293):     at android.app.Activity.dispatchTouchEvent(Activity.java:2061)
06-30 18:22:26.521: ERROR/AndroidRuntime(1293):     at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:1643)
06-30 18:22:26.521: ERROR/AndroidRuntime(1293):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884)
06-30 18:22:26.521: ERROR/AndroidRuntime(1293):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884)
06-30 18:22:26.521: ERROR/AndroidRuntime(1293):     at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:1659)
06-30 18:22:26.521: ERROR/AndroidRuntime(1293):     at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1107)
06-30 18:22:26.521: ERROR/AndroidRuntime(1293):     at android.app.Activity.dispatchTouchEvent(Activity.java:2061)
06-30 18:22:26.521: ERROR/AndroidRuntime(1293):     at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:1643)
06-30 18:22:26.521: ERROR/AndroidRuntime(1293):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884)
06-30 18:22:26.521: ERROR/AndroidRuntime(1293):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884)
06-30 18:22:26.521: ERROR/AndroidRuntime(1293):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884)
06-30 18:22:26.521: ERROR/AndroidRuntime(1293):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884)
06-30 18:22:26.521: ERROR/AndroidRuntime(1293):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884)
06-30 18:22:26.521: ERROR/AndroidRuntime(1293):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884)
06-30 18:22:26.521: ERROR/AndroidRuntime(1293):     at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:1659)
06-30 18:22:26.521: ERROR/AndroidRuntime(1293):     at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow

THIS IS THE WAY I AM CONSTRUCTING THE TABS-------

Resources res = getResources();   
TabHost tabHost = getTabHost();  // The activity TabHost
TabHost.TabSpec spec;  // Reusable TabSpec for each tabO
Intent intent;  // Reusable Intent for each tab

// Create an Intent to launch an Activity for the tab (to be reused)

intent = new Intent().setClass(this,FirstActivity.class);
spec = tabHost.newTabSpec("tab_First");
spec.setIndicator("First",res.getDrawable(R.drawable.ic_tab));
spec.setContent(intent);      
tabHost.addTab(spec);

// 2nd tab
intent = new Intent().setClass(this,SecondActivity.class);
spec = tabHost.newTabSpec("tab_Second");
spec.setIndicator("Second",res.getDrawable(R.drawable.ic_tab));
spec.setContent(intent);
tabHost.addTab(spec);

//3rd Tab
intent = new Intent().setClass(this,ThirdActivity.class);
spec = tabHost.newTabSpec("tab_Third");
spec.setIndicator("Third",res.getDrawable(R.drawable.ic_tab));
spec.setContent(intent);
tabHost.addTab(spec);        

// 4th tab    
intent = new Intent().setClass(this,FourthActivity.class);
spec = tabHost.newTabSpec("tab_Fourth");
spec.setIndicator("Fourth",res.getDrawable(R.drawable.ic_create));
spec.setContent(intent);
tabHost.addTab(spec);           

tabHost.setCurrentTab(0);     

Answer 1

where you have create the tabs make a static context and use any where in activity where you want to create the dialog box

Answer 2

This is a common error that can be fixed using 'getApplicationContext' instead of 'this' in your dialog. See also FATAL EXCEPTION: main. The error occurs when you (from the dialog) attempt to use the context of the activity that started the dialog, when that activity is no longer in the foreground.

Answer 3

As @Cristian has mentioned, i can also say you are trying to display a dialog inside an activity or referring context of the current activity, but whenever you are supposed to use context while using ActivityGroup with Tabs, at that time you need to use getParent() to get context of parent view.

While displaying dialog, you need a parent activity's context:

  // define at Global level and use it inside the activity whenever you want to refer                
  //activity context;
  private Activity activity;  

  //Write this inside onCreate() method.        
  activity = getParent();

Now, whenever you are supposed to refer context, then use this activity context value.

Answer 4

I don't see any Stackoverflow Error (are you sure you know what a Stackoverflow is?)... your problem is that somehow you are trying to display a dialog inside an activity that is already finished or is not in the foreground. At least, that's what we can infer from your logcat trace.