android zoom animation

1<?xml version="1.0" encoding="utf-8"?>
2<set xmlns:android="http://schemas.android.com/apk/res/android" android:fillAfter="true">
3    <scale
4    android:duration="1000"
5    android:fromXScale="1.0"
6    android:fromYScale="1.0"
7    android:pivotX="50%"
8    android:pivotY="50%"
9    android:toXScale="0.5"
10    android:toYScale="0.5"/>
11</set>
12

1<?xml version="1.0" encoding="utf-8"?>
2<set xmlns:android="http://schemas.android.com/apk/res/android" android:fillAfter="true">
3    <scale
4    android:duration="1000"
5    android:fromXScale="1"
6    android:fromYScale="1"
7    android:pivotX="50%"
8    android:pivotY="50%"
9    android:toXScale="3"
10    android:toYScale="3"/>
11 </set>
12