How to set Transparent Background as a Custom Dialog Box in android

Question

I need to make my custom dialog box as a transparent.

Sample Code :

Dialog dialog;
@Override
protected Dialog onCreateDialog(int id) 
{ 
    switch(id) 
         


        

Answer 1

This question of yours describes exactly what my problem was. I tried every single solution I stumbled upon in this thread as well as in several more threads. Nothing worked. Finally I stumbled upon this thread and the corresponding answer.

I had to create a custom dialog class. So I did and it worked. Actually the following styles were sufficient for me:

colors.xml:

    #66000000

styles.xml:

The code of the dialog class:

import android.app.Dialog;
import android.content.Context;

import my.app.com.android.R;

public class CustomDialog extends Dialog {
    public AddBookCustomDialog(final Context context) {
        super(context, R.style.custom_dialog_theme);
        this.setContentView(R.layout.add_book_dialog);
    }
}

And how I use this dialog in the activity code:

CustomDialog customDialog = new CustomDialog(this);
customDialog.show();

I don't know why I have to create a custom class in order for the theme to be taken into account. Now I have achieved what I wanted to do: transparent dialog. The next fight will be to position positive and negative buttons as long as I can no longer user the convenience methods of AlertDialog.Builder. Hopefully my code will prove of help to you.

Also notice the low value of alpha - maybe even try it with 00 so that you make sure whether your configuration works.