RecycleView动画

LinearLayoutManager layoutManager = new LinearLayoutManager(mContext, LinearLayoutManager.VERTICAL, false);
mGoodsRecycle.setLayoutManager(layoutManager);
mGoodsListAdapter = new RecycleGoodsListAdapter(mContext, adapterListDatas);
mGoodsRecycle.setLayoutAnimation(AnimationUtils.loadLayoutAnimation(this, R.anim.layout_animation_fall_down));
mGoodsRecycle.setAdapter(mGoodsListAdapter);

layout_animation_fall_down：
<?xml version="1.0" encoding="utf-8"?>
<layoutAnimation xmlns:android="http://schemas.android.com/apk/res/android"
android:animation="@anim/item_animation_fall_down"
android:delay="15%"
android:animationOrder="normal" />

item_animation_fall_down：

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
android:duration="1000">

<translate
    android:fromYDelta="-20%"
    android:interpolator="@android:anim/decelerate_interpolator"
    android:toYDelta="0" />

<alpha
    android:fromAlpha="0"
    android:interpolator="@android:anim/decelerate_interpolator"
    android:toAlpha="1" />

<scale
    android:fromXScale="105%"
    android:fromYScale="105%"
    android:interpolator="@android:anim/decelerate_interpolator"
    android:pivotX="50%"
    android:pivotY="50%"
    android:toXScale="100%"
    android:toYScale="100%" />

</set>