Animation

Android中动画Animation Overview

1. Drawable Animation(帧动画)
2. View Animation
3. Property Animation

01-Drawable Animation(帧动画)

1.XML文件的代码方式实现: 核心类 AnimationDrawable

AnimationDrawable rocketAnimation;

public void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.main);

  ImageView rocketImage = (ImageView) findViewById(R.id.rocket_image);
  rocketImage.setBackgroundResource(R.drawable.rocket_thrust);
  rocketAnimation = (AnimationDrawable) rocketImage.getBackground();
}

public boolean onTouchEvent(MotionEvent event) {
  if (event.getAction() == MotionEvent.ACTION_DOWN) {
    rocketAnimation.start();
    return true;
  }
  return super.onTouchEvent(event);
}

//在res/drawable/中定义XML文件rocket_thrust.xml

    
    
    

注:把xml文件设置给Image控件属性设置:

1. 通过XML来是实现:android:src="@drawable/frame_anim"
2. 通过代码实现::iv.setImageResource(R.drawable.frame_anim);

2.直接以代码的方式实现:

// 创建一个帧动画
AnimationDrawable drawable = new AnimationDrawable();
// 添加一帧的动画
drawable.addFrame(context.getResources()
    .getDrawable(R.drawable.desktop_rocket_launch_1), 200);
drawable.addFrame(context.getResources()
    .getDrawable(R.drawable.desktop_rocket_launch_2), 200);
 // 为Imageview设置帧动画
 rocketView.setImageDrawable(drawable);
 drawable.start();

02-View Animation(补间动画)

注:

1.透明 : AlphaAnimation

//方式1:直接以代码的方式实现
public void alpha1(View view) {
    /*
     * 参数1:从完全透明 啥都看不见 参数2:到完全不透明 啥的看的见
     */
    AlphaAnimation alphaAnimation = new AlphaAnimation(0, 1);
    alphaAnimation.setDuration(100);
    // 设置重复次数
    alphaAnimation.setRepeatCount(Animation.INFINITE);
    // 设置重复模式
    alphaAnimation.setRepeatMode(Animation.REVERSE);
    // 让ImageView执行这个动画效果
    iv.startAnimation(alphaAnimation);

    // iv.setAnimation(alphaAnimation);
    // alphaAnimation.start(); 不兼容高版本

}

//方式2:XML文件的方式实现,XML文件定义在res/anim/中



public void alpha2(View view){
    Animation animation = AnimationUtils.loadAnimation(this, R.anim.alpha_anim);
    iv.startAnimation(animation); 
}

2.平移: TranslateAnimation

public void translate(View view){
    /*
     * 坐标系相对自己的
     * 参数1/2:从x的哪个坐标到x的哪个坐标
     * 参数3/4:从y的哪个坐标到y的哪个坐标
     */
    TranslateAnimation translateAnimation = new TranslateAnimation(0, 100, 0, 100);
    translateAnimation.setDuration(2000);
    //让动画保持执行完后的效果
    translateAnimation.setFillAfter(true);
    view2.startAnimation(translateAnimation);
}

3.缩放: ScaleAnimation

public void scale(View view){
    /*
     * 参数1:x方向从哪个倍数开始
     * 参数2:x方向到哪个倍数
     * 参数3:y方向从哪个倍数开始
     * 参数4:y向下到哪个倍数
     * 参数5:x中心的类型(x方向参考的坐标系)
     * 参数6:中心点的x坐标(如果参考自己,传递的是百分比)
     * 参数7:y中心的类型(y方向参考的坐标系)
     * 参数8:中心点的y坐标(如果参考自己,传递的是百分比)
     */
    ScaleAnimation scaleAnimation = new ScaleAnimation(0.1f, 10, 0.1f, 10, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.25f);
    scaleAnimation.setDuration(5000);
    iv.startAnimation(scaleAnimation);
}

4.旋转: RotateAnimation

public void rotate(View view){
    RotateAnimation rotateAnimation = new RotateAnimation(0, 45, Animation.RELATIVE_TO_SELF, 0, Animation.RELATIVE_TO_SELF, 0);
    //long duration = rotateAnimation.getDuration();
    rotateAnimation.setDuration(1000);
    rotateAnimation.setRepeatCount(Animation.INFINITE);
    rotateAnimation.setRepeatMode(Animation.REVERSE);
    rotateAnimation.setFillAfter(true);
    iv.startAnimation(rotateAnimation);
}

5.集合: AnimationSet

public void set(View view){
    AnimationSet animationSet = new AnimationSet(true);
    AlphaAnimation alphaAnimation = new AlphaAnimation(0, 1);
    alphaAnimation.setDuration(1000);
    //设置重复次数
    alphaAnimation.setRepeatCount(Animation.INFINITE);
    //设置重复模式
    alphaAnimation.setRepeatMode(Animation.REVERSE);
    //将透明动画添加到集合
    animationSet.addAnimation(alphaAnimation);

    RotateAnimation rotateAnimation = new RotateAnimation(0, 45, Animation.RELATIVE_TO_SELF, 0, Animation.RELATIVE_TO_SELF, 0);
    rotateAnimation.setDuration(1000);
    rotateAnimation.setRepeatCount(Animation.INFINITE);
    rotateAnimation.setRepeatMode(Animation.REVERSE);
    //将旋转动画添加到集合
    animationSet.addAnimation(rotateAnimation);
    //让ImageView执行动画集合
    iv.startAnimation(animationSet);
}

03-Property Animation(属性动画)

1.透明 : ObjectAnimator-alpha

public void alpha1(View view) {
    // iv.setAlpha(alpha)
    /*
     * 参数1:要修改哪个控件 参数2:要修改的控件的属性的名称 参数3:要将属性的值修改为(可变参数)
     */
    ObjectAnimator objectAnimator = ObjectAnimator.ofFloat(iv, "alpha", 0, 1, 0.5f);
    objectAnimator.setDuration(2000);
    objectAnimator.start();
}
//方式一:以XML文件的方式实现,定义在res/animator/




public void alpha2(View view) {
    ObjectAnimator objectAnimator = (ObjectAnimator) AnimatorInflater.loadAnimator(this, R.animator.alpha_animtor);
    // 要作用在哪个控件上
    objectAnimator.setTarget(iv);
    objectAnimator.start();

}

2.平移,旋转,缩放 : ObjectAnimator-alpha-translationX-rotationY

ObjectAnimator objectAnimator = ObjectAnimator.ofFloat(iv, "translationX", 0,200);
ObjectAnimator objectAnimator = ObjectAnimator.ofFloat(iv, "scaleX", 1,0.1f);
ObjectAnimator objectAnimator = ObjectAnimator.ofFloat(iv, "rotationY", 0,10);

3.集合 : AnimatorSet

public void set(View view) {
    AnimatorSet animatorSet = new AnimatorSet();
    ObjectAnimator rotationX = ObjectAnimator.ofFloat(iv, "rotationX", 0, 45);
    rotationX.setDuration(1000);
    ObjectAnimator rotationY = ObjectAnimator.ofFloat(iv, "rotationY", 0, 45);
    rotationY.setDuration(1000);
    // 让他们同时执行
    // animatorSet.playTogether(rotationX,rotationY);
    // 连续执行
    animatorSet.playSequentially(rotationX, rotationY);
    // 开始
    animatorSet.start();
}

4.ValueAnimator.

private void moveRocket2Original() {
    int startX = paramsRocket.x;
    int endX = 0;
    //只负责值的变化.
    ValueAnimator animatorX = ValueAnimator.ofInt(startX, endX);
    //值变化的监听
    animatorX.addUpdateListener(new AnimatorUpdateListener() {
        @Override
        public void onAnimationUpdate(ValueAnimator animation) {
            int value = (Integer) animation.getAnimatedValue();
            paramsRocket.x = value;
            mWM.updateViewLayout(rocketView, paramsRocket);
        }
    });
    //动画一个监听
    animatorX.addListener(new AnimatorListener() {
        @Override
        public void onAnimationStart(Animator animation) {}
        @Override
        public void onAnimationRepeat(Animator animation) {}
        @Override
        public void onAnimationEnd(Animator animation) {
            rocketView.setImageResource(R.drawable.desktop_bg_2);
        }
        @Override
        public void onAnimationCancel(Animator animation) {}
    });
    animatorX.start();
}