如何建立一個動態的drawable
首先得有幾組圖片

建立drawable

<?xml version="1.0" encoding="utf-8"?>
<animation-list
  xmlns:android="http://schemas.android.com/apk/res/android"
  android:oneshot="false">
    <item android:drawable="@mipmap/audio_animation_list_left_1" android:duration="300"></item>
 

    <item android:drawable="@mipmap/audio_animation_list_left_2" android:duration="300"></item>
    <item android:drawable="@mipmap/audio_animation_list_left_3" android:duration="300"></item>
</animation-list>

執行動態圖片的程式碼

    private void play() {
        if (animationView.getBackground() instanceof
 
 AnimationDrawable) {
            AnimationDrawable animation = (AnimationDrawable) animationView.getBackground();
            animation.start();
        }
    }

    private void stop() {
        if (animationView.getBackground() instanceof AnimationDrawable) {
            AnimationDrawable animation = (AnimationDrawable) animationView.getBackground();
            animation.stop();
            animation.selectDrawable(2
 
);
        }
    }