How to change dialog background color programmatically?

Question

I have a main activity where users can change (via preferences) the background colour to their favourite colour. My problem is that I can not change the background colour o

Answer 1

Dialogue background colour

dialog.getWindow().setBackgroundDrawableResource(R.color.glassblack);

really worked fine for me.

Answer 2

I found a one rule solution!

d.getWindow().setBackgroundDrawableResource(R.drawable.menubackground);

It works for me with a normal dialog. But I dont know if it works on an AlertDialog.

Answer 3

I have found a hack, without creating custom layout you can create multiple designs by playing with some properties of AlertDialog.

What you have to do:

When AlertDialog is visible on your screen, OnShowListener is called. So, by adding dialog.setOnShowListener(this) you will be able to customize your AlertDialog.

Code:

// Create AlertDialog
AlertDialog.Builder adb = new AlertDialog.Builder(context1);
    adb.setTitle(context1.getString(R.string.app_name))
    .setMessage(message)
    .setPositiveButton("Ok", new DialogInterface.OnClickListener() {
        @Override
        public void onClick(DialogInterface dialog, int which) {

        }
});
AlertDialog dialog = adb.create();

// Make some UI changes for AlertDialog
dialog.setOnShowListener(new DialogInterface.OnShowListener() {
    @Override
    public void onShow(final DialogInterface dialog) {

        // Add or create your own background drawable for AlertDialog window
        Window view = ((AlertDialog)dialog).getWindow();
        view.setBackgroundDrawableResource(R.drawable.your_drawable);

        // Customize POSITIVE, NEGATIVE and NEUTRAL buttons.
        Button positiveButton = ((AlertDialog)dialog).getButton(DialogInterface.BUTTON_POSITIVE);
        positiveButton.setTextColor(context1.getResources().getColor(R.color.primaryColor));
        positiveButton.setTypeface(Typeface.DEFAULT_BOLD);
        positiveButton.invalidate();

        Button negativeButton = ((AlertDialog)dialog).getButton(DialogInterface.BUTTON_NEGATIVE);
        negativeButton.setTextColor(context1.getResources().getColor(R.color.primaryColor));
        negativeButton.setTypeface(Typeface.DEFAULT_BOLD);
        negativeButton.invalidate();

        Button neutralButton = ((AlertDialog)dialog).getButton(DialogInterface.BUTTON_NEUTRAL);
        neutralButton.setTextColor(context1.getResources().getColor(R.color.primaryColor));
        neutralButton.setTypeface(Typeface.DEFAULT_BOLD);
        neutralButton.invalidate();
    }
});

Answer 4

The suggested solution

d.getWindow().setBackgroundDrawableResource(R.drawable.menubackground);

Do not work well (tested in 6.0) as it changes the dialog shadow

Here Is my solution:

 public static void changeDialogBackground(final Dialog dialog,final int resId) {
    dialog.getWindow().getDecorView().setBackgroundResource(resId);
    dialog.setOnShowListener(new DialogInterface.OnShowListener() {
        @Override
        public void onShow(final DialogInterface dialog) {
            Window window = ((AlertDialog)dialog).getWindow();
            window.getDecorView().setBackgroundResource(resId);
        }
    });
}

Answer 5

I kinda faced the same problem. And the only way to solve it was extending my own version of layout. I see that in your case it is an AlertDialog. What I recommend you to do, is to create a unique class, that is your customized AlertDialog and create a layout for this, and then you inflate this.

Here is a post that helped me a lot. http://blog.androgames.net/10/custom-android-dialog/

I followed this post and solved my problem with customizing dialogs.

Please, if you have more doubts, let me know.

Thanks.