inside Android Dialog, how to setup onActivityResult for startActivityForResult?

Question

From an activity, I can easily setup the onActivityResult() and call startActivityForResult() and everything works fine.

Now, I need to call <

Answer 1

You can use DialogFragment instead of Dialog. Because The dialog is secondary to its activity. When you start the activity with startActivityForResult(), your dialog gets dismissed

Another Example Use Callback

Create Interface

 public interface DialogCallback {
   void getResults(String results);
 }

Create DialogFragment

public class DialogFragment extends DialogFragment {

DialogCallback dialogCallback;

public DialogFragment setCallBack(DialogCallback dialogCallback){
    this.dialogCallback = dialogCallback;
    return this;
}

@NonNull
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
    return super.onCreateDialog(savedInstanceState);
}


@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    View view = inflater.inflate(R.layout.your_layout, container, false);
    return view;
}

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

@Override
public void onDismiss(DialogInterface dialog) {
    super.onDismiss(dialog);
    dialogCallback.getResults("hello");
}

}

In your Activity

@Override
protected void onCreate(Bundle savedInstanceState) {
     super.onCreate(savedInstanceState);
     new DialogFragment().setCallBack(dialogCallback).show(getFragmentManager(),"");
}

DialogCallback dialogCallback = new DialogCallback() {
    @Override
    public void getResults(String results) {
        if(results!=null){
            Log.e(TAG,results);
        }
    }
};

Output

When you dismiss the DialogFragment you will see the "hello" Log in your Activity