http://blog.csdn.net/yegongheng/article/details/38435553
#######ObjectAnimator
ofFloat 对象 ，属性名（对象存在get set的属性） ，变化的范围
一组属性动画
ImageView imageView= (ImageView) findViewById(R.id.img);
//旋转360度
ObjectAnimator.ofFloat(imageView,"rotation",0f,360f).setDuration(1000).start();
//x坐标变换
ObjectAnimator.ofFloat(imageView,"translationX",0f,200f).setDuration(1000).start();
//y坐标变换
ObjectAnimator.ofFloat(imageView,"translationY",0f,200f).setDuration(1000).start();
一组属性动画
常见的属性
PropertyValuesHolder p1=PropertyValuesHolder.ofFloat("rotation",0f,360f);
PropertyValuesHolder p2=PropertyValuesHolder.ofFloat("translationX",0f,200f);
PropertyValuesHolder p3=PropertyValuesHolder.ofFloat("translationY",0f,200f);
ObjectAnimator.ofPropertyValuesHolder(imageView,p1,p2,p3).setDuration(1000).start();
用AnimatorSet 执行一组动画 可以设置执行顺序
ObjectAnimator oa1=ObjectAnimator.ofFloat(imageView,"rotation",0f,360f);
ObjectAnimator oa2=ObjectAnimator.ofFloat(imageView,"translationX",0f,200f);
ObjectAnimator oa3=ObjectAnimator.ofFloat(imageView,"translationY",0f,200f);
AnimatorSet set=new AnimatorSet();
//一起执行
//set.playTogether(oa1,oa2,oa3);
//依次执行
//set.playSequentially(oa1,oa2,oa3);
//3 2一起执行
set.play(oa2).with(oa3);
//执行完 2在执行1
set.play(oa1).after(oa2);
set.setDuration(1000);
set.start();
#######动画的监听 （监听动画的开始 结束 取消 …）
ObjectAnimator objectAnimator=ObjectAnimator.ofFloat(v,"alpha",0f,1f);
//全部重写
objectAnimator.addListener(new Animator.AnimatorListener() {
@Override
public void onAnimationStart(Animator animation) {
}
@Override
public void onAnimationEnd(Animator animation) {
Toast.makeText(AnimationListenEventActivity.this,"anim end",Toast.LENGTH_SHORT).show();
}
@Override
public void onAnimationCancel(Animator animation) {
}
@Override
public void onAnimationRepeat(Animator animation) {
}
});
//按 需求重写
objectAnimator.addListener(new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
super.onAnimationEnd(animation);
Toast.makeText(AnimationListenEventActivity.this,"anim stop",Toast.LENGTH_SHORT).show();
}
});
objectAnimator.setDuration(1000);
objectAnimator.start();
两种方式 第一种 实例化 AnimatorListener 需要重写所有监听
第二种 实例化 AnimatorListenerAdapter 需要哪个监听就重写哪个
#######valueAnimator
Valueanimator实现的定时器
5秒内从0走到100
在onAnimationUpdate给button重新赋值
final Button button=(Button)v;
ValueAnimator valueAnimator=ValueAnimator.ofInt(0,100);
valueAnimator.setDuration(5000);
valueAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
@Override
public void onAnimationUpdate(ValueAnimator animation) {
//获取每次修改的值
Integer value= (Integer) animation.getAnimatedValue();
button.setText(""+value);
}
});
valueAnimator.start();