动画效果 ObjectAnimator

学习了一下动画效果的使用，做一下笔记

ImageView imageView = findViewById(R.id.imageView);
ObjectAnimator.ofFloat(imageView,"translationY",0F,200F)
.setDuration(1000).start();//translationX也可以

ObjectAnimator.ofFloat(imageView,"rotation",0F,360F)
.setDuration(1000).start();//旋转360度
//这里是多个动画同时实现 Y方向上的平移与自身的旋转

 

PropertyValuesHolder p1 = PropertyValuesHolder.ofFloat("rotation",0,360F);
PropertyValuesHolder p2 = PropertyValuesHolder.ofFloat("translationX",0,200F);
PropertyValuesHolder p3 = PropertyValuesHolder.ofFloat("translationY",0,200F);
//设置三个动画
ObjectAnimator.ofPropertyValuesHolder(imageView,p1,p2,p3).setDuration(1000).start();
// 先传入控件 然后是个可变长的数组

 

ObjectAnimator animator1 = ObjectAnimator.ofFloat(imageView,"rotation",0,360F);
ObjectAnimator animator2 = ObjectAnimator.ofFloat(imageView,"translationX",0,300F);
ObjectAnimator animator3 = ObjectAnimator.ofFloat(imageView,"translationY",0,300F);

AnimatorSet set=new AnimatorSet();
set.playTogether(animator1,animator2,animator3);//同时
set.setDuration(1000);
set.start();

 

ObjectAnimator animator1 = ObjectAnimator.ofFloat(imageView,"rotation",0,360F);
ObjectAnimator animator2 = ObjectAnimator.ofFloat(imageView,"translationX",0,300F);
ObjectAnimator animator3 = ObjectAnimator.ofFloat(imageView,"translationY",0,300F);

AnimatorSet set = new AnimatorSet();
set.playSequentially(animator1,animator2,animator3);//按照顺序开始动画
set.setDuration(1000);
set.start();

 

通过with，after，before来定义多个动画之前的先后顺序

set.play(animator2).with(animator3);
set.play(animator1).after(animator2);

 

ObjectAnimator animator = ObjectAnimator.ofFloat(view,"alpha",0F,1F);//设置透明度
animator.setDuration(1000);// 1000ms
animator.addListener(new AnimatorListenerAdapter() {//设置监听器
　　//这里只重写了 end的监听，也可以重写 start等监听
    @Override
    public void onAnimationEnd(Animator animation) {
         super.onAnimationEnd(animation);//end时 toast
         Toast.makeText(MainActivity.this,"anim end",Toast.LENGTH_SHORT).show();
    }
});
animator.start();