Android 帧动画，加载动画，AnimationDrawable

1、创建drawable文件ring_animation.xml

<?xml version="1.0" encoding="utf-8"?>
<animation-list xmlns:android="http://schemas.android.com/apk/res/android"
  >
    <item android:drawable="@mipmap/windmill_1"
        android:duration="10">
    </item>
    <item android:drawable="@mipmap/windmill_2"
        android:duration="10">
    </item>
    <item android:drawable="@mipmap/windmill_3"
        android:duration="10">
    </item>
    <item android:drawable="@mipmap/windmill_4"
        android:duration="10">
    </item>
    <item android:drawable="@mipmap/windmill_5"
        android:duration="10">
    </item>
    <item android:drawable="@mipmap/windmill_6"
        android:duration="10">
    </item>
    <item android:drawable="@mipmap/windmill_7"
        android:duration="10">
    </item>

</animation-list>

2、imageview启动帧动画

ImageView iv = (ImageView)findViewById(R.id.iv);

iv.setImageResource(R.drawable.ring_animation);
AnimationDrawable animationDrawable = (AnimationDrawable) iv.getDrawable();
animationDrawable.start();