注：所有的进度条都要配置

android:indeterminateDrawable="样式文件名称"

1. 图片旋转

im_send_loading.png

注意：android:drawable属性使用xml文件的图片资源类型，动画可能会有问题(如闪烁)，尤其在高版本上，此时只能使用png等类型

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
 
    <item>
        <rotate
            android:drawable="@drawable/dialog_progress_round"
            android:fromDegrees="0.0"
            android:pivotX="50.0%"
            android:pivotY="50.0%"
            android:toDegrees="360.0" />
    </item>
 
</layer-list>

或者

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

2.帧动画效果

loading.png

<?xml version="1.0" encoding="UTF-8"?>
<animation-list xmlns:android="http://schemas.android.com/apk/res/android"
    android:oneshot="false" >
 
    <item
        android:drawable="@drawable/loading_01"
        android:duration="150"/>
    <item
        android:drawable="@drawable/loading_02"
        android:duration="150"/>
    <item
        android:drawable="@drawable/loading_03"
        android:duration="150"/>
    <item
        android:drawable="@drawable/loading_04"
        android:duration="150"/>
    <item
        android:drawable="@drawable/loading_05"
        android:duration="150"/>
    <item
        android:drawable="@drawable/loading_06"
        android:duration="150"/>
    <item
        android:drawable="@drawable/loading_07"
        android:duration="150"/>
 
</animation-list>

3.设置背景颜色

loading.png

<?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:toDegrees="360" >
 
    <shape
        android:innerRadiusRatio="3"
        android:shape="ring"
        android:thicknessRatio="8"
        android:useLevel="false" >
        <gradient
            android:centerColor="#FFDC35"
            android:centerY="0.50"
            android:endColor="#CE0000"
            android:startColor="#FFFFFF"
            android:type="sweep"
            android:useLevel="false" />
    </shape>
 
</rotate>