Can't use onDismiss() when using custom dialogs - Android

Question

I'm working on a little program, and I need to add a custom dialog that passes some info to the calling acitivity when it closes. I extended the dialog class, and when I try to capture the custom dialog when it closes,using an onDismiss listener, it never reaches it because I used a custom dialog.

This is part of my activity -

    .
    .
    .
       attributes customizeDialog = new attributes(con,position,pick.getLastVisiblePosition());
        customizeDialog.show();

(The attributes being the name of the class that extends the dialog class).

Here is the event listener I set up when the dialog finishes -

    customizeDialog.setOnDismissListener(new DialogInterface.OnDismissListener() {

        @Override
        public void onDismiss(DialogInterface dialog) {
            Log.v("LOG_CAT",attributes.selectedIndexes.get(0) + " " + attributes.selectedIndexes.get(1) + " " + attributes.selectedIndexes.get(2) + " " + attributes.selectedIndexes.get(3) + " " + attributes.selectedIndexes.get(5) + " ");
    }

});

I know i'm doing it wrong,I just don't know how to fix it.

I would really appreciate any help with this problem.

Thanks!

Answer 1

I tend to have my activity implement listeners like this...

public class MyActivity extends Activity
    implements DialogInterface.OnDismissListener {

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

        attributes customizeDialog = new attributes(con,position,pick.getLastVisiblePosition());
        customizeDialog.setOnDismissListener(this);
        customizeDialog.show();
    }

    @Override
    public void onDismiss(DialogInterface dialog) {
        // Do whatever
    }
}

Answer 2

You could have your calling activity implement a custom listener interface that is called when the dialog closes:

public interface MyDialogListener {
    void OnCloseDialog();
}

public class MyActivity implements MyDialogListener {
    public void SomeMethod() {
        MyDialog myDialog = new MyDialog(this, this);
        myDialog.show();
    }

    public void OnCloseDialog() {
        // Do whatever you want to do on close here
    }

}

public class MyDialog extends Dialog {
    MyDialogListener mListener;

    public MyDialog (Context context, MyDialogListener listener) {
        super(context, R.style.Dialog);
        mListener = listener;
    }

    public void onClick(View view) {
        switch (view.getId()) {
            case R.id.CloseButton:
                mListener.OnCloseDialog();
                dismiss()
                break;
            default:
                //...
        }
    }
}

This is especially useful if you want to send stuff back to the caller at any other time besides on dismissal.

Answer 3

And if you want to have some sort of saving inside the dialog, again, you have to use onDicmissListener since for custom dialogs onDismiss is not called by default:

public class CustomDialog extends Dialog implements DialogInterface.OnDismissListener {

    public CustomDialog(Context context) {
        super(context);
        setupLayout(context);
    }

    public CustomDialog(Context context, int theme) {
        super(context, theme);
        setupLayout(context);
    }

    protected CustomDialog(Context context, boolean cancelable, OnCancelListener cancelListener) {
        super(context, cancelable, cancelListener);
        setupLayout(context);
    }

    private void setupLayout(Context context) {
        this.context = context;
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        setContentView(R.layout.custom_dialog);
        WindowManager.LayoutParams params = getWindow().getAttributes();
        params.width = WindowManager.LayoutParams.FILL_PARENT;
        getWindow().setAttributes(params);

        setOnDismissListener(this);

        loadPreferences();
    }

    private void loadPreferences() {
      // ...
    }

    private void savePreferences() {
       // ...
    }

    @Override
    public void onDismiss(DialogInterface dialogInterface) {
        savePreferences();
    }
}

Answer 4

If you are using custom dialog and can't dismiss it, try below code. It worked for me.

 new Handler().postDelayed(new Runnable() {
        @Override
        public void run() {
           dialog.dismiss();
        }
    }, 1500);