How do I add a watermark to each activity in my android app ?

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Android

I know to add image to any activity. But is there any possibility to add a Watermark of my logo to each screen/activity ?

What I have tried:

<ImageView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:src="@drawable/silver"
        android:layout_marginTop="120dp"
        />

I could insert an Image to my activity but is it possible to make this image my Watermark logo at the background of all activity ?