Handling Back key while showing a dialog in android

in my application i prompt for password in onResume(), and Before this i have already created view in onCreate() so it is compulsory for user to enter password But if user press the Back key password dialog get disappered and user easily use the application

when dialog is Be开发者_开发问答ing shown,if get key event for Back key then i can easily handle this for that purpose i implemented onBackPressed()/onKeyDown() methods of Activity But none get event for this key when dialog is on screen after dialog disappered these methods get event for Back key can anyone tell me how can i handle this case

thanks in advance

Call setCancelable() on your Dialog or your AlertDialog.Builder, depending on how you are creating this dialog.

dialog.setcancellable(false);

it works perfect

You can do something like this :

public boolean onKeyDown(int keyCode, KeyEvent event) 
{
   if (keyCode == KeyEvent.KEYCODE_BACK && progressDialog.isShowing())
   {
       // DO SOMETHING
   }

   // Call super code so we dont limit default interaction
   super.onKeyDown(keyCode, event);

   return true;
}