Android DialogFragment vs Dialog

android, android-dialog, android-dialogfragment, android-fragments

Solution

Yes, use `DialogFragment` and in `onCreateDialog` you can simply use an AlertDialog builder anyway to create a simple `AlertDialog` with Yes/No confirmation buttons. Not very much code at all.

With regards handling events in your fragment there would be various ways of doing it but I simply define a message `Handler` in my `Fragment`, pass it into the `DialogFragment` via its constructor and then pass messages back to my fragment's handler as approprirate on the various click events. Again various ways of doing that but the following works for me.

In the dialog hold a message and instantiate it in the constructor:

private Message okMessage;
...
okMessage = handler.obtainMessage(MY_MSG_WHAT, MY_MSG_OK);

Implement the `onClickListener` in your dialog and then call the handler as appropriate:

public void onClick(.....
    if (which == DialogInterface.BUTTON_POSITIVE) {
        final Message toSend = Message.obtain(okMessage);
        toSend.sendToTarget();
    }
 }

Edit

And as `Message` is parcelable you can save it out in `onSaveInstanceState` and restore it

outState.putParcelable("okMessage", okMessage);

Then in `onCreate`

if (savedInstanceState != null) {
    okMessage = savedInstanceState.getParcelable("okMessage");
}

Problem

Google recommends that we use `DialogFragment` instead of a simple `Dialog` by using `Fragments API`, but it is absurd to use an isolated `DialogFragment` for a simple Yes-No confirmation message box. What is the best practice in this case?

Original source