To make it fullscreen:
<activity android:name="YourActivity" android:theme="@android:style/Theme.NoTitleBar.Fullscreen">
In order for images to fill the screen, you must do this on your adapter by creating a View with MATCH_PARENT x MATCH_PARENT, and in your ImageView created on getView, you must fill all the space:
yourImageView.setScaleType(ImageView.ScaleType.FIT_XY);
Marcos vasconcelos
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