I am working on Custom Progress Dialog. I've set its style like done in this SO question Positionning the spinning wheel in a custom progress dialog My progress dialog is showing no animation at all. When I changed the background to black then it was only showing a black box. I want my progress dialog to animate. 
In activity I am doing something like this
 public MyProgressDialog(Context context) {
        super(context, R.style.NewDialog);
    }
and the NewDialog is as:
<style name="NewDialog" parent="@android:style/Theme.Dialog">
    <item name="android:windowFrame">@null</item>
    <item name="android:windowBackground">@android:color/transparent</item>
    <item name="android:windowIsFloating">true</item>
    <item name="android:windowContentOverlay">@null</item>
    <item name="android:windowTitleStyle">@null</item>
    <item name="android:windowAnimationStyle">@android:style/Animation.Dialog</item>
    <item name="android:windowSoftInputMode">stateUnspecified|adjustPan</item>
    <item name="android:backgroundDimEnabled">true</item>
    <item name="android:width">50dip</item>
    <item name="android:height">50dip</item>
    <item name="android:background">@android:color/transparent</item>
</style>
Any help is appreciated in advance
 
     
    