CODEWITHSUNDEEP
android
Usman Riaz
Usman Riaz

Reputation: 3020

Can not create Alert Dialog

I am overriding the back button . i want to show user a confirmation dialog when leaving my application. while creating the dialog i got the following error

 Activity com.example.netlogger.ActivityLogin has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView@49ffa7b8 that was originally added here
04-16 16:47:40.885: E/WindowManager(7757): android.view.WindowLeaked: Activity com.example.netlogger.ActivityLogin has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView@49ffa7b8 that was originally added here
04-16 16:47:40.885: E/WindowManager(7757):  at android.view.ViewRoot.<init>(ViewRoot.java:247)
04-16 16:47:40.885: E/WindowManager(7757):  at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:148)
04-16 16:47:40.885: E/WindowManager(7757):  at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:91)
04-16 16:47:40.885: E/WindowManager(7757):  at android.view.Window$LocalWindowManager.addView(Window.java:424)
04-16 16:47:40.885: E/WindowManager(7757):  at android.app.Dialog.show(Dialog.java:241)
04-16 16:47:40.885: E/WindowManager(7757):  at com.example.netlogger.ActivityLogin.onBackPressed(ActivityLogin.java:130)
04-16 16:47:40.885: E/WindowManager(7757):  at android.app.Activity.onKeyUp(Activity.java:1888)
04-16 16:47:40.885: E/WindowManager(7757):  at android.view.KeyEvent.dispatch(KeyEvent.java:1063)
04-16 16:47:40.885: E/WindowManager(7757):  at android.app.Activity.dispatchKeyEvent(Activity.java:2068)
04-16 16:47:40.885: E/WindowManager(7757):  at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchKeyEvent(PhoneWindow.java:1703)
04-16 16:47:40.885: E/WindowManager(7757):  at android.view.ViewRoot.deliverKeyEventToViewHierarchy(ViewRoot.java:2473)
04-16 16:47:40.885: E/WindowManager(7757):  at android.view.ViewRoot.handleFinishedEvent(ViewRoot.java:2443)
04-16 16:47:40.885: E/WindowManager(7757):  at android.view.ViewRoot.handleMessage(ViewRoot.java:1735)
04-16 16:47:40.885: E/WindowManager(7757):  at android.os.Handler.dispatchMessage(Handler.java:99)
04-16 16:47:40.885: E/WindowManager(7757):  at android.os.Looper.loop(Looper.java:123)
04-16 16:47:40.885: E/WindowManager(7757):  at android.app.ActivityThread.main(ActivityThread.java:4633)
04-16 16:47:40.885: E/WindowManager(7757):  at java.lang.reflect.Method.invokeNative(Native Method)
04-16 16:47:40.885: E/WindowManager(7757):  at java.lang.reflect.Method.invoke(Method.java:521)
04-16 16:47:40.885: E/WindowManager(7757):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:858)
04-16 16:47:40.885: E/WindowManager(7757):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
04-16 16:47:40.885: E/WindowManager(7757):  at dalvik.system.NativeStart.main(Native Method)

My code is the following

@Override
    public void onBackPressed() {
        super.onBackPressed();
        SharedPreferences prefs = PreferenceManager
                .getDefaultSharedPreferences(this);
        if (!prefs.getBoolean("ask_for_exit", false)) {
            exitAlertDialog = new Builder(ActivityLogin.this)
                    .setTitle("Are You Sure?")
                    .setMessage("Are you sure you want to exit")
                    .setPositiveButton("YES",
                            new DialogInterface.OnClickListener() {

                                @Override
                                public void onClick(DialogInterface dialog,
                                        int which) {
                                    finish();
                                }
                            })
                    .setNegativeButton("NO", new DialogInterface.OnClickListener() {

                                @Override
                                public void onClick(DialogInterface dialog, int which) {
                                    exitAlertDialog.dismiss();
                                }
                    }).create();
            exitAlertDialog.show();

        }
    }

What's this error means? if there is any clue please let me know. Thanks!

Upvotes: 0

Views: 110

Answers (3)

Alex Chengalan
Alex Chengalan

Reputation: 8281

The problem is at super.onBackPressed(); delete that line.

super.onBackPressed();

exits the app. you are trying to add a alert dialoge after it. Thats the problem.

Upvotes: 0

Sino Raj
Sino Raj

Reputation: 6441

Remove super.onBackPressed(); from the function, when use that, Activity automatiacally calls onStop();

Upvotes: 0

Krishnabhadra
Krishnabhadra

Reputation: 34265

If you call 

super.onBackPressed();

from your onBackPressed() method then default back button behavior will happen, and your activity will be destroyed without cleaning (or showing) up your AlertDialog. You should comment out that line.

Also if your SharedPreference is to not show AlertDialog, then you should explicitly call finish() in an else block. 

if (!prefs.getBoolean("ask_for_exit", false)){
  //show alert
}else{
   finish();
}

Upvotes: 2

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