Android: Using Alertdialog When An Item From A Listview Is Long Pressed

I have a list of items, created by a listview. I would like to long press one of the items on the list and an alert dialog to open up and depending on yes or no key on that dialog

Solution 1:

AlertDialog does not wait for the selection. After you call show() method, these two lines will be executed immediately:

if (yesOrNo == 1) {
        DO SOMETHING;   
}

So value of yesOrNo variable will be its initial value.

Solution:

You can call doSomething(0) in onClick() method of positiveButton and doSomething(1) in onClick() method of negativeButton.

Solution 2:

yesOrNo is changing.But you couldn't catch it.Because AlertDialog is asynchronous it doesn't wait for the click.It execute the rest part of the scope.If you want to see the change then see the value on click on the dialog button .then you will see

Solution 3:

you cannot check the value of yesOrNo right after you have called b.show(). Just because the dialog is now shown, doesn't mean a button has been clicked. You should do your DO SOMETHING inside the OnClickListener or call a method from within the OnClickListener.

Solution 4:

The following test is not at the right place:

if (yesOrNo == 1) {
    DO SOMETHING;   
}

It is evaluated once your dialog is created, and not once the user clicks a button. So yesOrNo is still false at that time, and we never DO SEOMTHING.

DO SOMETHING should be located in b.setPositiveButton()'s onClick() handler.

Solution 5:

Call two separate functions in positivebutton and in negativebutton, and write the code what you want:

sample:

publicvoidonListItemClick(ListView parent, View view, int position, long id) {

         b = new AlertDialog.Builder(this);

        b.setMessage("Are you sure?");
        b.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
                publicvoidonClick(DialogInterface dialog, int whichButton) {

              yes();
                }
        });
        b.setNegativeButton("No", new DialogInterface.OnClickListener() {
                publicvoidonClick(DialogInterface dialog, int whichButton) {

                  no();
                }
        });
        b.show();
    Toast.makeText(this, "no", Toast.LENGTH_LONG).show();
    }

   publicvoidyes()
   {
       Toast.makeText(this, "yes", Toast.LENGTH_LONG).show();
   }
   publicvoidno()
   {
       Toast.makeText(this, "no", Toast.LENGTH_LONG).show();
   }