android 图片自动切换

图片自动切换
res/drawable/update.xml

    xmlns:android="http://schemas.android.com/apk/res/android"
    android:oneshot="false">
    "@drawable/update_1" android:duration="200" />
    "@drawable/update_2" android:duration="200" />
    "@drawable/update_3" android:duration="200" />
    "@drawable/update_4" android:duration="200" />
    "@drawable/update_5" android:duration="200" />
    "@drawable/update_6" android:duration="200" />
    "@drawable/update_7" android:duration="200" />

res/layout/xx.xml

"10dp"
        android:layout_width="fill_parent" android:layout_height="fill_parent"
        android:layout_weight="1" android:src="@drawable/update"/>