Animator动画XML实现

在res下创建文件夹animator文件夹

<?xml version="1.0" encoding="utf-8"?>
<objectAnimator xmlns:android="http://schemas.android.com/apk/res/android"
                android:propertyName="TranslationY"
                android:duration="2000"
                android:valueFrom="0.0"
                android:valueTo="400.0"
                android:interpolator="@android:anim/accelerate_interpolator"
                android:valueType="floatType"
                android:repeatCount="1"
                android:repeatMode="reverse"
                android:startOffset="2000"/>

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
     android:ordering="together">
    <objectAnimator
            android:propertyName="x"
            android:duration="500"
            android:valueFrom="0"
            android:valueTo="400"
            android:valueType="floatType"/>
    <objectAnimator
            android:propertyName="y"
            android:duration="500"
            android:valueFrom="0"
            android:valueTo="300"
            android:valueType="floatType"/>
</set>

<?xml version="1.0" encoding="utf-8"?>
<animator xmlns:android="http://schemas.android.com/apk/res/android"
          android:valueFrom="0"
          android:valueTo="300"
          android:duration="1000"
          android:valueType="intType"
          android:interpolator="@android:anim/bounce_interpolator"/>

    mTv = (TextView)findViewById(R.id.tv);

        findViewById(R.id.start_anim).setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                ObjectAnimator animator = (ObjectAnimator) AnimatorInflater.loadAnimator(MainActivity.this,
                        R.animator.object_animator);
                animator.setTarget(mTv);
                animator.start();
            }
        });

 mTv = (TextView)findViewById(R.id.tv);

        findViewById(R.id.start_anim).setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                AnimatorSet set = (AnimatorSet) AnimatorInflater.loadAnimator(MainActivity.this,
                        R.animator.set_animator);
                set.setTarget(mTv);
                set.start();
            }
        });

        mTv = (TextView)findViewById(R.id.tv);
        findViewById(R.id.start_anim).setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                ValueAnimator valueAnimator = (ValueAnimator) AnimatorInflater.loadAnimator(MainActivity.this,
                        R.animator.value_animator);
                valueAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
                    public void onAnimationUpdate(ValueAnimator animation) {
                        int offset = (Integer)animation.getAnimatedValue();
                        mTv.layout( offset,offset,mTv.getWidth()+offset,mTv.getHeight() + offset);
                    }
                });
                valueAnimator.start();
            }
        });