android - Allow outside touch for DialogFragment

Question

I have a Fragment in my app that shows a DialogFragment.
I have in the fragment a button that closes the dialog. But when I show the dialogFragment, the touches outside from the dialog do nothing and I can't click the buttons outside from the dialog fragment.

How can I allow outside touches for DialogFragment?

Answer 1

In order to do that, a flag of the Window that allows the outside touch should be turned on and for the good appearance the background dim flag should be cleared.
Since it must be done after dialog is created, I've implemented it via the Handler.

@Override
public void onViewCreated(final View view, Bundle savedInstanceState) {
    super.onViewCreated(view, savedInstanceState);

    // This is done in a post() since the dialog must be drawn before locating.
    getView().post(new Runnable() {

        @Override
        public void run() {

            Window dialogWindow = getDialog().getWindow();

            // Make the dialog possible to be outside touch
            dialogWindow.setFlags(WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL,
                    WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL);
            dialogWindow.clearFlags(WindowManager.LayoutParams.FLAG_DIM_BEHIND);

            getView().invalidate();
        }
    });
}

At this moment the outside touch is possible.

In case we want to make it nicer and without the frame, the following code can be added:

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    // Hide title of the dialog
    setStyle(STYLE_NO_FRAME, 0);
}