How to give animation to the ViewSwitcher

Try setting animation inside xml as

<ViewSwitcher
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:inAnimation="@android:anim/slide_in_left"
    android:outAnimation="@android:anim/slide_out_right" >

In addition to this :

Take care of switcher.showNext(); or switcher.showPrevious();

If you set an animation to the switcher, both action will result in the same animation.