Create AlertDialog in Android

Question

I'm trying to create an Aler Dialog but when I click on button my application crash.Any idea what's happening and how can I fix that?

Here is the code :

    Button deactivate = (Button) findViewById(R.id.deactivate);
    deactivate.setOnClickListener(new View.OnClickListener() {
        public void onClick(View v) {
            new AlertDialog.Builder( MyCollectionId.this )
            .setTitle( "Invalid selection" )
            .setMessage( "Drbr" )
            .setPositiveButton( "Confirm", new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialog, int which) {
                    Log.d("AlertDialog", "Positive");
                }
            })
            .setNegativeButton( "Cancel", new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialog, int which) {
                    Log.d("AlertDialog","Negative");
                }
            })
            .show();    

        }

    });

LogCat :

08-08 11:51:39.794: ERROR/AndroidRuntime(551): Uncaught handler: thread main exiting due to uncaught exception
08-08 11:51:39.824: ERROR/AndroidRuntime(551): android.view.WindowManager$BadTokenException: Unable to add window -- token android.app.LocalActivityManager$LocalActivityRecord@44c1d9f0 is not valid; is your activity running?
08-08 11:51:39.824: ERROR/AndroidRuntime(551):     at android.view.ViewRoot.setView(ViewRoot.java:468)
08-08 11:51:39.824: ERROR/AndroidRuntime(551):     at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:177)
08-08 11:51:39.824: ERROR/AndroidRuntime(551):     at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:91)
08-08 11:51:39.824: ERROR/AndroidRuntime(551):     at android.view.Window$LocalWindowManager.addView(Window.java:424)
08-08 11:51:39.824: ERROR/AndroidRuntime(551):     at android.app.Dialog.show(Dialog.java:239)
08-08 11:51:39.824: ERROR/AndroidRuntime(551):     at android.app.AlertDialog$Builder.show(AlertDialog.java:802)
08-08 11:51:39.824: ERROR/AndroidRuntime(551):     at com.stampii.stampii.mystampii.MyCollectionId$3.onClick(MyCollectionId.java:67)
08-08 11:51:39.824: ERROR/AndroidRuntime(551):     at android.view.View.performClick(View.java:2364)
08-08 11:51:39.824: ERROR/AndroidRuntime(551):     at android.view.View.onTouchEvent(View.java:4179)
08-08 11:51:39.824: ERROR/AndroidRuntime(551):     at android.widget.TextView.onTouchEvent(TextView.java:6541)
08-08 11:51:39.824: ERROR/AndroidRuntime(551):     at android.view.View.dispatchTouchEvent(View.java:3709)
08-08 11:51:39.824: ERROR/AndroidRuntime(551):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884)
08-08 11:51:39.824: ERROR/AndroidRuntime(551):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884)
08-08 11:51:39.824: ERROR/AndroidRuntime(551):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884)
08-08 11:51:39.824: ERROR/AndroidRuntime(551):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884)
08-08 11:51:39.824: ERROR/AndroidRuntime(551):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884)
08-08 11:51:39.824: ERROR/AndroidRuntime(551):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884)
08-08 11:51:39.824: ERROR/AndroidRuntime(551):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884)
08-08 11:51:39.824: ERROR/AndroidRuntime(551):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884)
08-08 11:51:39.824: ERROR/AndroidRuntime(551):     at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:1659)
08-08 11:51:39.824: ERROR/AndroidRuntime(551):     at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1107)
08-08 11:51:39.824: ERROR/AndroidRuntime(551):     at android.app.Activity.dispatchTouchEvent(Activity.java:2061)
08-08 11:51:39.824: ERROR/AndroidRuntime(551):     at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:1643)
08-08 11:51:39.824: ERROR/AndroidRuntime(551):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884)
08-08 11:51:39.824: ERROR/AndroidRuntime(551):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884)
08-08 11:51:39.824: ERROR/AndroidRuntime(551):     at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:1659)
08-08 11:51:39.824: ERROR/AndroidRuntime(551):     at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1107)
08-08 11:51:39.824: ERROR/AndroidRuntime(551):     at android.app.Activity.dispatchTouchEvent(Activity.java:2061)
08-08 11:51:39.824: ERROR/AndroidRuntime(551):     at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:1643)
08-08 11:51:39.824: ERROR/AndroidRuntime(551):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884)
08-08 11:51:39.824: ERROR/AndroidRuntime(551):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884)
08-08 11:51:39.824: ERROR/AndroidRuntime(551):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884)
08-08 11:51:39.824: ERROR/AndroidRuntime(551):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884)
08-08 11:51:39.824: ERROR/AndroidRuntime(551):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884)
08-08 11:51:39.824: ERROR/AndroidRuntime(551):     at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:1659)
08-08 11:51:39.824: ERROR/AndroidRuntime(551):     at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1107)
08-08 11:51:39.824: ERROR/AndroidRuntime(551):     at android.app.Activity.dispatchTouchEvent(Activity.java:2061)
08-08 11:51:39.824: ERROR/AndroidRuntime(551):     at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:1643)
08-08 11:51:39.824: ERROR/AndroidRuntime(551):     at android.view.ViewRoot.handleMessage(ViewRoot.java:1691)
08-08 11:51:39.824: ERROR/AndroidRuntime(551):     at android.os.Handler.dispatchMessage(Handler.java:99)
08-08 11:51:39.824: ERROR/AndroidRuntime(551):     at android.os.Looper.loop(Looper.java:123)
08-08 11:51:39.824: ERROR/AndroidRuntime(551):     at android.app.ActivityThread.main(ActivityThread.java:4363)
08-08 11:51:39.824: ERROR/AndroidRuntime(551):     at java.lang.reflect.Method.invokeNative(Native Method)
08-08 11:51:39.824: ERROR/AndroidRuntime(551):     at java.lang.reflect.Method.invoke(Method.java:521)
08-08 11:51:39.824: ERROR/AndroidRuntime(551):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860)
08-08 11:51:39.824: ERROR/AndroidRuntime(551):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)
08-08 11:51:39.824: ERROR/AndroidRuntime(551):     at dalvik.system.NativeStart.main(Native Method)

Thanks in advance!

score 1 · Answer 1 · answered May 17 '12 at 12:00

Try this.

AlertDialog.Builder builder1=new AlertDialog.Builder(MyAlertdialogActivity.this);
builder1.setMessage("Please Press Ok");
builder1.setNeutralButton("OK",new DialogInterface.OnClickListener() {
  @Override
  public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
  Toast.makeText(getApplicationContext(), "Ok is pressed", Toast.LENGTH_LONG).show();
  }
  });
builder1.show();

Do check my humble blog too if you find it useful..I've have discussed about AlertDialog in detail there: http://androiddesk.wordpress.com/2012/01/25/dialog/

Blundell · Accepted Answer · 2011-08-08T12:08:17.593

1

This line:

 new AlertDialog.Builder( MyCollectionId.this )

is setting the context for your dialog to attach to the activity.

You either need to use

 YourActivity.this

 new AlertDialog.Builder( YourActivity.this )

or set the context to a variable and use that:

 Context mContext;

 onCreate(){
   mContext = this;
 }

 yourOnClick{
   new AlertDialog.Builder( mContext )
 }

If this isn't your issue you need more 'context' around your question, where are you calling the dialog from what Activity are you in what is the state of Activity.

edited Aug 08 '11 at 12:08

answered Aug 08 '11 at 12:01

Blundell

75,855
30
208
233

Actually I realize that I can't use context = this; in my situation,because I forgot to mention that my Activity is part of TabGroupActivity,so I need to replace content=this; with getParent() and everything works fine! Thanks for helping me to realize that! – hardartcore Aug 08 '11 at 12:14

Create AlertDialog in Android

2 Answers2