DialogFragment and onDismiss

Question

I am using a DialogFragment, which I am showing like this from an Activity:

DialogFragmentImage dialog = DialogFragmentImage.newIns         


        

Answer 1

Here is my answer. It's a bit late but it's maybe benefit someone passing by.

FragmentManager fm = getFragmentManager();

YourDialogFragment dialog = new YourDialogFragment();
dialog.show(fm,"MyDialog");

fm.executePendingTransactions();
dialog.getDialog().setOnDismissListener(new DialogInterface.OnDismissListener() {
                    @Override
                    public void onDismiss(DialogInterface dialogInterface) {
                       //do whatever you want when dialog is dismissed
                    }
                });

We need to call

fm.executePendingTransactions(); 

To make sure that FragmentTransaction work has been performed. Otherwise NullPointerException can occur when calling setOnDismissListener().

Sorry if there is any mistake. Hope this help.