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.

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AlertDialog code

public class MyAlertDialog extends AlertDialog {      public MyAlertDialog(Context context)      {           super(context);      }        public MyAlertDialog(Context context, int theme)      { super(context, theme); } } 

Activity code

public void showMyDialogOK(Context context, String s, DialogInterface.OnClickListener OkListener) {             MyAlertDialog myDialog = new MyAlertDialog(context, R.style.MyDialog2);             myDialog.setTitle(null);      myDialog.setMessage(s);             myDialog.setButton(DialogInterface.BUTTON_POSITIVE ,"Ok", OkListener);     myDialog.show();     } 

Styles

<?xml version="1.0" encoding="utf-8"?>     <resources>         <style name="MyTheme" parent="@android:style/Theme.NoTitleBar.Fullscreen">             <item name="android:alertDialogStyle">@style/AlertDialog</item>           </style>              <style name="MyTheme2" parent="@android:style/Theme.Black">             <item name="android:alertDialogStyle">@style/AlertDialog</item>             </style>           <style name="AlertDialog">                     <item name="android:fullDark">@null</item>             <item name="android:fullBright">@null</item>             <item name="android:topDark">@drawable/popup_top_dark</item>             <item name="android:topBright">@null</item>             <item name="android:centerBright">@null</item>             <item name="android:centerDark">@drawable/popup_center_dark</item>             <item name="android:centerMedium">@null</item>             <item name="android:bottomDark">@null</item>             <item name="android:bottomBright">@null</item>             <item name="android:bottomMedium">@drawable/popup_bottom_medium</item>         </style>          <style name="MyDialog2" parent="@android:Theme.Dialog">                     <item name="android:windowBackground">@null</item>                 <item name="android:buttonStyle">@style/CustomButton</item>           </style>              <style name="CustomButton" parent="@android:style/Widget.Button">                     <item name="android:background">@drawable/button_stateful</item>           </style> </resources> 

Image resources

popup_center_dark.9.png

popup_bottom_medium.9.png

popup_top_dark.9.png

Answer 1

public MyAlertDialog(         Context context,          int theme     ) extends AlertDialog {       super(context, theme);     getWindow().setBackgroundDrawable(new ColorDrawable(android.graphics.Color.TRANSPARENT)); }