How to modify Text and click Listener while using custom Dialog Class?

Question

I have a dialog class with a custom layout. Now I want to change the text value and different on button click listener from different Activities. I am trying to do that But getting error. Here is my source code. Any help or suggestion will be very appreciating.

public class MyDialog extends Dialog {

    TextView dialogTitle, dialogMessage;
    Button dialogCancel, dialogOk;

    public MyDialog(@NonNull Context context) {
        super(context);
    }

    @Override
    public void dismiss() {
        super.dismiss();
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.dialog_layout);

        //..................REFERENCE
        dialogTitle = (TextView) findViewById(R.id.txt_ttl);
        dialogMessage = (TextView) findViewById(R.id.txt_msg);

        dialogCancel = (Button) findViewById(R.id.btn_cancel_id);
        dialogOk = (Button) findViewById(R.id.btn_ok_id);

        //dialogTitle.setText("title has been changed");
    }

    private void dialogCancel(){

    }

    private void dialogOk(){

    }

    public void changeDialogTitle(String dTitle){
        dialogTitle.setText(dTitle);
    }
}

from other activities I am using this

    ...onCreate{...
    MyDialog myDialog = new MyDialog(this);
}

// on button click show dialog
public void showDialog(View view) {
    myDialog.changeDialogTitle("Title");
    myDialog.show();
}

Answer 1

it's True maybe you can pass the title, as the argument

first add the parameter in your MyDialog Class

       public class MyDialog extends Dialog {

    TextView dialogTitle, dialogMessage;
    Button dialogCancel, dialogOk;
    String title;
    public MyDialog(@NonNull Context context, String title) {
        super(context);
        this.title = title;
    }

    @Override
    public void dismiss() {
        super.dismiss();
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.dialog_layout);

        //..................REFERENCE
        dialogTitle = (TextView) findViewById(R.id.txt_ttl);
        dialogMessage = (TextView) findViewById(R.id.txt_msg);

        dialogCancel = (Button) findViewById(R.id.btn_cancel_id);
        dialogOk = (Button) findViewById(R.id.btn_ok_id);
        // set your title in here
        dialogTitle.setText(title);
    }

    private void dialogCancel(){

    }

    private void dialogOk(){

    }

    public void changeDialogTitle(String dTitle){
        dialogTitle.setText(dTitle);
    }
}

and after that on your Activity call the function like this

MyDialog myDialog = new Mydialog(this,"My New Title");
myDialog.show