Android Question Iphone animation in activity

[ArminKH]

hi all
a few hours ago i download the (flickr view example with activity animation example)
and in this example the activity animations are similar 2 iphone's animation
but that use just single animation 4 activity start and activity finish
in anim folder in res we have 2 xml file for zoom enter and zoom exit

<set xmlns:android="http://schemas.android.com/apk/res/android"
        android:interpolator="@android:anim/decelerate_interpolator">
    <scale android:fromXScale="2.0" android:toXScale="1.0"
           android:fromYScale="2.0" android:toYScale="1.0"
           android:pivotX="50%p" android:pivotY="50%p"
           android:duration="@android:integer/config_mediumAnimTime" />
</set>

<set xmlns:android="http://schemas.android.com/apk/res/android"
        android:interpolator="@android:anim/decelerate_interpolator"
        android:zAdjustment="top">
    <scale android:fromXScale="1.0" android:toXScale=".5"
           android:fromYScale="1.0" android:toYScale=".5"
           android:pivotX="50%p" android:pivotY="50%p"
           android:duration="@android:integer/config_mediumAnimTime" />
    <alpha android:fromAlpha="1.0" android:toAlpha="0"
            android:duration="@android:integer/config_mediumAnimTime"/>
</set>

and in my activity i use

SetAnimation("zoom_enter1", "zoom_exit1")

'SetAnimation is a sub 4 load animations

but i want to use this animation reverse for animation finish and i dont want 2 use same animation

i use this codes 4 reverse animation

<set xmlns:android="http://schemas.android.com/apk/res/android"
        android:interpolator="@android:anim/decelerate_interpolator">
    <scale android:fromXScale=".5" android:toXScale="1.0"
           android:fromYScale=".5" android:toYScale="1.0"
           android:pivotX="50%p" android:pivotY="50%p"
           android:duration="@android:integer/config_mediumAnimTime" />
</set>

<set xmlns:android="http://schemas.android.com/apk/res/android"
        android:interpolator="@android:anim/decelerate_interpolator"
        android:zAdjustment="top">
    <scale android:fromXScale="1.0" android:toXScale="2.0"
           android:fromYScale="1.0" android:toYScale="2.0"
           android:pivotX="50%p" android:pivotY="50%p"
           android:duration="@android:integer/config_mediumAnimTime" />
    <alpha android:fromAlpha="1.0" android:toAlpha="0"
            android:duration="@android:integer/config_mediumAnimTime"/>
</set>

and in activity use(in back key)

SetAnimation("zoom_enter2", "zoom_exit2")

but this is not exactly the reverse of first animation

plz help me tnx

 

[ArminKH]

and this is my code
the first animation is okaaaaay but second animation in animation2is not smooth