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最近学习了下动画，大致分为：属性动画（继承值动画），帧动画，补间动画。下面介绍下每一种的XML文件配置
首先：普通动画：
分为translate，scale，alpha，rotate，四种动画配置大题相同；
<translate xmlns:android="http://schemas.android.com/apk/res/android"
android:duration="1000"
android:fromXDelta="0"
android:interpolator="@anim/cycle_7"
android:toXDelta="10" />解释下interpolator这个属性，这个可以设置动画结束时候的一些结束动画，例如来回振动次数cycle，还有overshoot等。
<cycleInterpolator xmlns:android="http://schemas.android.com/apk/res/android"
android:cycles="7" />这个属性说明，来回振动7次。其他三种动画的配置也相同，如果想设置多种动画的合集，XML文件外可以包裹一层Set属性。
在代码中同样可以设置补间动画。
public void translate(View v){
// ta = new TranslateAnimation(10, 100, 20, 200);
ta = new TranslateAnimation(Animation.RELATIVE_TO_SELF, -1, Animation.RELATIVE_TO_SELF, 2,
Animation.RELATIVE_TO_SELF, -0.5f, Animation.RELATIVE_TO_SELF, 1.5f);
//设置播放时间
ta.setDuration(2000);
//设置重复次数
ta.setRepeatCount(1);
ta.setRepeatMode(Animation.REVERSE);
iv.startAnimation(ta);
}
public void scale(View v){
// sa = new ScaleAnimation(fromX, toX, fromY, toY, iv.getWidth() / 2, iv.getHeight() / 2);
sa = new ScaleAnimation(0.5f, 2, 0.1f, 3, Animation.RELATIVE_TO_SELF, 0.5f,
Animation.RELATIVE_TO_SELF, 0.5f);
sa.setDuration(2000);
//填充动画的结束位置
sa.setRepeatCount(1);
sa.setRepeatMode(Animation.REVERSE);
sa.setFillAfter(true);
iv.startAnimation(sa);
}
public void alpha(View v){
aa = new AlphaAnimation(0, 1);
aa.setDuration(2000);
sa.setRepeatCount(1);
iv.startAnimation(aa);
}
public void rotate(View v){
ra = new RotateAnimation(0, 720, Animation.RELATIVE_TO_SELF, 0.5f,
Animation.RELATIVE_TO_SELF, 0.5f);
ra.setDuration(2000);
ra.setRepeatCount(1);
ra.setRepeatMode(Animation.REVERSE);
iv.startAnimation(ra);
}
public void fly(View v){
AnimationSet set = new AnimationSet(false);
set.addAnimation(ta);
set.addAnimation(sa);
set.addAnimation(ra);
set.addAnimation(aa);
iv.startAnimation(set);
}然后是帧动画，一般这种动画出现次数比较少，相对在app的开场动画中会使用。
<animation-list xmlns:android="http://schemas.android.com/apk/res/android"
android:oneshot="false">
<item android:drawable="@drawable/g1" android:duration="200" />
<item android:drawable="@drawable/g2" android:duration="200" />
<item android:drawable="@drawable/g3" android:duration="200" />
<item android:drawable="@drawable/g4" android:duration="200" />
<item android:drawable="@drawable/g5" android:duration="200" />
<item android:drawable="@drawable/g6" android:duration="300" />
<item android:drawable="@drawable/g7" android:duration="300" />
<item android:drawable="@drawable/g8" android:duration="300" />
<item android:drawable="@drawable/g9" android:duration="200" />
<item android:drawable="@drawable/g10" android:duration="200" />
<item android:drawable="@drawable/g11" android:duration="200" />
</animation-list>oneshot：动画是否只执行一次，duration：动画的持续时间。
//把帧动画的资源文件指定为iv的背景 iv.setBackgroundResource(R.drawable.frameanimation); //获取iv的背景 AnimationDrawable ad = (AnimationDrawable) iv.getBackground(); ad.start();在类中调用帧动画。
下面介绍下属性动画：这种动画与帧动画的区别在于，他是真实的去移动位移。
public void translate(View v){
// TranslateAnimation ta = new TranslateAnimation(0, 150, 0, 0);
// ta.setDuration(2000);
// ta.setFillAfter(true);
// iv.startAnimation(ta);
//target:动画作用于哪个组件
ObjectAnimator oa = ObjectAnimator.ofFloat(iv, "translationX", 10, 70, 20, 100);
oa.setDuration(2000);
oa.setRepeatCount(1);
oa.setRepeatMode(ValueAnimator.REVERSE);
oa.start();
}
public void scale(View v){
ObjectAnimator oa = ObjectAnimator.ofFloat(iv, "scaleX", 1, 1.6f, 1.2f, 2);
oa.setDuration(2000);
oa.start();
}
public void alpha(View v){
ObjectAnimator oa = ObjectAnimator.ofFloat(iv, "alpha", 0, 0.6f, 0.2f, 1);
oa.setDuration(2000);
oa.start();
}
public void rotate(View v){
ObjectAnimator oa = ObjectAnimator.ofFloat(iv, "rotationY", 0, 180, 90, 360);
oa.setDuration(2000);
oa.setRepeatCount(1);
oa.setRepeatMode(ValueAnimator.REVERSE);
oa.start();
}
public void fly(View v){
AnimatorSet set = new AnimatorSet();
ObjectAnimator oa1 = ObjectAnimator.ofFloat(iv, "translationX", 10, 70, 20, 100);
oa1.setDuration(2000);
oa1.setRepeatCount(1);
oa1.setRepeatMode(ValueAnimator.REVERSE);
ObjectAnimator oa2 = ObjectAnimator.ofFloat(iv, "translationY", 10, 70, 20, 100);
oa2.setDuration(2000);
oa2.setRepeatCount(1);
oa2.setRepeatMode(ValueAnimator.REVERSE);
ObjectAnimator oa3 = ObjectAnimator.ofFloat(iv, "scaleX", 1, 1.6f, 1.2f, 2);
oa3.setDuration(2000);
oa3.setRepeatCount(1);
oa3.setRepeatMode(ValueAnimator.REVERSE);
ObjectAnimator oa4 = ObjectAnimator.ofFloat(iv, "rotation", 0, 180, 90, 360);
oa4.setDuration(2000);
oa4.setRepeatCount(1);
oa4.setRepeatMode(ValueAnimator.REVERSE);
//设置挨个飞
// set.playSequentially(oa1, oa2, oa3, oa4);
//设置一起飞
set.playTogether(oa1, oa2, oa3, oa4);
set.start();
}
public void xml(View v){
Animator at = AnimatorInflater.loadAnimator(this, R.animator.objanimator);
//设置作用于哪个组件
at.setTarget(iv);
at.start();
}同样，他也可以加载XML动画。
<set xmlns:android="http://schemas.android.com/apk/res/android" > <objectAnimator android:propertyName="translationX" android:duration="200" android:repeatCount="1" android:repeatMode="reverse" android:valueFrom="-100" android:valueTo="100" > </objectAnimator> </set>
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原文地址：http://blog.csdn.net/baidujiangwei18/article/details/51330292
