安卓突击：Android 动画有哪几种？

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
    android:fillAfter = "false"
    android:zAdjustment="bottom"
    >
    <rotate
        android:fromDegrees="0"
        android:toDegrees="360"
        android:pivotX="50%"
        android:pivotY="50%"
        android:duration="4000"
        />
</set>

Animation anim = AnimationUtils.loadAnimation(mContext, R.anim.rotate);
//监听动画的状态（开始，结束）
anim.setAnimationListener(new EffectAnimationListener());
textWidget = (TextView)findViewById(R.id.text_widget);
textWidget.setText(" 画面转移旋转动画效果");
textWidget.startAnimation(anim);

<?xml version="1.0" encoding="utf-8"?>
<animation-list
  xmlns:android="http://schemas.android.com/apk/res/android"
  android:oneshot="true"
  >
       <item android:drawable="@drawable/p1" android:duration="1000"></item>
       <item android:drawable="@drawable/p2" android:duration="1000"></item>
       <item android:drawable="@drawable/p3" android:duration="1000"></item>
       <item android:drawable="@drawable/p4" android:duration="1000"></item>
       <item android:drawable="@drawable/p5" android:duration="1000"></item>
       <item android:drawable="@drawable/p6" android:duration="1000"></item>
</animation-list>

AnimationDrawable anim = (AnimationDrawable)getResources().
getDrawable(R.drawable.frame);
CustomAnimDrawable cusAnim = new CustomAnimDrawable(anim);
cusAnim.setAnimationListener(new FrameAnimationListener());
textWidget = (TextView)findViewById(R.id.text_widget);
textWidget.setText(" 画面逐帧动画效果");
textWidget.setBackgroundDrawable(anim);
cusAnim.start();

public class CustomAnimDrawable extends AnimationDrawable {
    private final String TAG = "xmp";
    private AnimationDrawable mOriAnim;
    private AnimationDrawable mSelf;
    private Handler mHandler;
    private boolean mStarted;
    private AnimEndListenerRunnable mEndRunnable;
    private AnimationDrawableListener mListener;
    public CustomAnimDrawable(AnimationDrawable anim) {
        mOriAnim = anim;
        initialize();
    }
    private void initialize() {
        mSelf = this;
        mStarted = false;
        mHandler = new Handler();
        mEndRunnable = new AnimEndListenerRunnable();
        for (int i = 0; i < mOriAnim.getNumberOfFrames(); i++) {
            mSelf.addFrame(mOriAnim.getFrame(i), mOriAnim.getDuration(i));
        }
    }
    @Override
    public void start() {
        mOriAnim.start();
        mStarted = true;
        mHandler.post(mEndRunnable);
        if (mListener != null) {
            mListener.onAnimationStart(mSelf);
        }
        Log.v(TAG, "------CustomAnimDrawable------>start");
    }
    
    /**
     * 循环检测 动画的状态
     */
    class AnimEndListenerRunnable implements Runnable {
        @Override
        public void run() {
            // 动画已开始
            if (!mStarted) {
                return;
            }
            // 未停止继续监听
            if (!isEnd()) {
　　　　　　　　　　//这里的延迟时间是跟你的每一帧动画时间有关，基本保持一致就可以，最后一帧也会完整播放
　　　　　　　　　　//上面动画时间为每一帧1000ms，所以这里设为了1000ms
                mHandler.postDelayed(mEndRunnable,1000);
                return;
            }
            Log.v(TAG, "----------->over");
            // 动画已结束
            if (mListener != null) {
                mStarted = false;
                mListener.onAnimationEnd(mSelf);
            }
        }
    }
    /**
     * 判断动画是否结束 采用反射机制
     * @return
     */
    private boolean isEnd(){
        Class<AnimationDrawable> animClass = AnimationDrawable.class;
        try{  
            //利用Java反射方法判断是否结束
            //获得私有方法  例如
            //Method method = animClass.getDeclaredMethod("nextFrame",boolean.class);
            
            //访问其私有变量
            Field field = animClass.getDeclaredField("mCurFrame");
            field.setAccessible(true);
            
            int currFrameNum = field.getInt(mOriAnim);
            int totalFrameNum = mOriAnim.getNumberOfFrames();
            if((currFrameNum == totalFrameNum - 1)||
               (currFrameNum == -1)){
                return true;
            }
        }
        catch (Exception e) {
            Log.v(TAG,"-------->Exception");
        }
        
        return false;
    }
    public void setAnimationListener(AnimationDrawableListener listener) {
        mListener = listener;
    }
    
    public interface AnimationDrawableListener {
        /**
         * Notifies the start of the animation
         * @param animation
         */
        public void onAnimationStart(AnimationDrawable animation);
        /**
         * Notifies the end of the animation
         * @param animation
         */
        public void onAnimationEnd(AnimationDrawable animation);
    }
}