android_107_ProgressBar旋转

效果:

布局:

<ProgressBar android:layout_width="30dp"            android:layout_centerInParent="true"            android:layout_height="30dp"            android:visibility="invisible"            android:id="@+id/pb_rotate"            android:indeterminateDuration="1000"           android:indeterminateDrawable="@drawable/indeterminate_drawable"            />

动画:位于res/drawable目录下

<?xml version="1.0" encoding="utf-8"?><rotate xmlns:android="http://schemas.android.com/apk/res/android"     android:fromDegrees="0"    android:pivotX="50%"    android:pivotY="50%"    android:drawable="@drawable/indicate_rotate"    android:toDegrees="360">    </rotate>