Detailed explanation of the application of animation-list animation in android

/**
  * Applicable to animation-list animation
  * Created by _Smile on 2016/6/13.
  */

public class AnimImageViewLoader extends ImageView {

  private AnimationDrawable frameAnimation;

  public AnimImageViewLoader(Context context, AttributeSet attrs, int defStyle) {
    super(context, attrs, defStyle);
    init();
  }

  public AnimImageViewLoader(Context context, AttributeSet attrs) {
    super(context, attrs);
    init();
  }

  public AnimImageViewLoader(Context context) {
    super(context);
    init();
  }

  /**
    * Initialize animation information
    */
  private void init() {
    frameAnimation = (AnimationDrawable) getBackground();
    post(new Runnable(){
      public void run(){
        ();
      }
    });
  }

  /**
    * Start the startup display
    */
  public void startAnimation() {
    frameAnimation = (AnimationDrawable) getBackground();
    post(new Runnable() {
      @Override
      public void run() {
        ();
      }
    });
  }

  /**
    * Close animation display
    */
  public void stopAnimation() {
    post(new Runnable() {
      @Override
      public void run() {
        ();
      }
    });
  }
}

<
        android:
        style="@style/style_wrap_content"
        android:layout_alignTop="@id/iv_id_card_take_pic_main"
        android:background="@drawable/anim_id_card_positive_pic" />

AnimImageViewLoader aivIdCardPic = xFindViewById(.aiv_take_id_card_pic);
 (.anim_id_card_negative_pic);
 ();

<?xml version="1.0" encoding="utf-8"?>
<!--Picture animation-->
<animation-list xmlns:andro>
  <item android:drawable="@mipmap/ic_id_card_negative_01" android:duration="300"/>
  <item android:drawable="@mipmap/ic_id_card_negative_02" android:duration="300"/>
  <item android:drawable="@mipmap/ic_id_card_negative_03" android:duration="300"/>
  <item android:drawable="@mipmap/ic_id_card_negative_04" android:duration="300"/>
  <item android:drawable="@mipmap/ic_id_card_negative_05" android:duration="300"/>
  <item android:drawable="@mipmap/ic_id_card_negative_06" android:duration="300"/>
</animation-list>