Remove black background on custom dialog

Question

I want to remove the black background on custom dialog as shown in the picture. I\'m sure the black background was from the dialog, not from app\'s background.

Answer 1

public MyAlertDialog(
        Context context, 
        int theme
    ) extends AlertDialog { 

    super(context, theme);
    getWindow().setBackgroundDrawable(new ColorDrawable(android.graphics.Color.TRANSPARENT));
}