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

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();
    }
});