Android: How To Override Onbackpressed() In Alertdialog?

I have an AlertDialog dlgDetails which is shown from another AlertDialog dlgMenu. I would like to be able to show dlgMenu again if the user presses the back button in dlgDetails an

Solution 1:

I finally added a key listener to my dialog to listen to the Back key. Not as elegant as overriding onBackPressed() but it works. Here is the code:

dlgDetails = new AlertDialog.Builder(this)
    .setOnKeyListener(new DialogInterface.OnKeyListener() {
        @Override
        public boolean onKey (DialogInterface dialog, int keyCode, KeyEvent event) {
            if (keyCode == KeyEvent.KEYCODE_BACK && 
                event.getAction() == KeyEvent.ACTION_UP && 
                !event.isCanceled()) {
                dialog.cancel();
                showDialog(DIALOG_MENU);
                returntrue;
            }
            returnfalse;
        }
    })
    //(Rest of the .stuff ...)

For answer in Kotlin see here:Not working onbackpressed when setcancelable of alertdialog is false

Solution 2:

Found a shorter solution :) try this:

         accountDialog = builder.create();

        accountDialog.setOnCancelListener(newOnCancelListener() {

            @OverridepublicvoidonCancel(DialogInterface dialog) {
                dialog.dismiss();
                activity.finish();

            }
        });

Solution 3:

This handles both the BACK button and the click OUTSIDE the dialog:

yourBuilder.setOnCancelListener(newOnCancelListener() {
    @OverridepublicvoidonCancel(DialogInterface dialog) {
        dialog.cancel();
        // do your stuff...
    }
});

dialog.cancel() is the key: with dialog.dismiss() this would handle only the click outside of the dialog, as answered above.

Solution 4:

I created a new function within the java class and made a call to that function from the onClick method of the dialog Builder.

publicclassFilenameextendsActivity(){

@OverrideonCreate(){
 //your stuff//some button click launches Alertdialog
}

publicvoidmyCustomDialog(){
 AlertDialog.Builder alertDialogBuilder = newAlertDialog.Builder(this);
 //other details for builder
      alertDialogBuilder.setNegativeButton("BACK",
            newDialogInterface.OnClickListener() {
        @OverridepublicvoidonClick(DialogInterface dialog, int which) {
                         dialod.dismiss;
                         myCustomBack();
                    }
      });

 AlertDialog alertDialog = alertDialogBuilder.create();
 alertDialog.setCanceledOnTouchOutside(true);
 alertDialog.show();
}

publicvoidmyCustomBack(){
  if(condition1){
    super.onBackPressed();
  }
  if(condition 2){
    //do  stuff here
  }
}

@OverridepublicvoidonBackPressed(){
  //handle case hereif (condition A)
    //Do thiselse//Do that
}

}