How to change theme for AlertDialog

Question

I was wondering if someone could help me out. I am trying to create a custom AlertDialog. In order to do this, I added the following line of code in styles.xml

Answer 1

Better way to do this use custom dialog and customize according your needs here is custom dialog example.....

public class CustomDialogUI {
Dialog dialog;
Vibrator vib;
RelativeLayout rl;

@SuppressWarnings("static-access")
public void dialog(final Context context, String title, String message,
        final Runnable task) {
    dialog = new Dialog(context);
    dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
    dialog.setContentView(R.layout.custom);
    dialog.setCancelable(false);
    TextView m = (TextView) dialog.findViewById(R.id.message);
    TextView t = (TextView) dialog.findViewById(R.id.title);
    final Button n = (Button) dialog.findViewById(R.id.button2);
    final Button p = (Button) dialog.findViewById(R.id.next_button);
    rl = (RelativeLayout) dialog.findViewById(R.id.rlmain);
    t.setText(bold(title));
    m.setText(message);
    dialog.show();
    n.setText(bold("Close"));
    p.setText(bold("Ok"));
    // color(context,rl);
    vib = (Vibrator) context.getSystemService(context.VIBRATOR_SERVICE);
    n.setOnClickListener(new OnClickListener() {
        @Override
        public void onClick(View arg0) {
            vib.vibrate(15);
            dialog.dismiss();
        }
    });
    p.setOnClickListener(new OnClickListener() {
        @Override
        public void onClick(View arg0) {
            vib.vibrate(20);
            dialog.dismiss();
            task.run();
        }
    });
}
 //customize text style bold italic....
public SpannableString bold(String s) {
    SpannableString spanString = new SpannableString(s);
    spanString.setSpan(new StyleSpan(Typeface.BOLD), 0,
            spanString.length(), 0);
    spanString.setSpan(new UnderlineSpan(), 0, spanString.length(), 0);
    // spanString.setSpan(new StyleSpan(Typeface.ITALIC), 0,
    // spanString.length(), 0);
    return spanString;
}

}

Here is xml layout