RecyclerView的进场动画、点击动画

下面图片即为本次的运行效果：

 

1.进场动画是在viewholder中的onViewAttachedToWindow（）中添加动画即可，动画的代码：

private ScaleInAnimation mSelectAnimation = new ScaleInAnimation();

@Override
    public void onViewAttachedToWindow(DiffVH holder) {
        super.onViewAttachedToWindow(holder);
        addAnimation(holder);
    }

private void addAnimation(DiffVH holder) {
        for (Animator anim : mSelectAnimation.getAnimators(holder.itemView)) {
            anim.setDuration(300).start();
            anim.setInterpolator(new LinearInterpolator());
        }
    }

ScaleInAnimation.java:

import android.animation.Animator;
import android.animation.ObjectAnimator;
import android.view.View;

public class ScaleInAnimation{
    private static final float DEFAULT_SCALE_FROM = .5f;
    private final float mFrom;

    public ScaleInAnimation() {
        this(DEFAULT_SCALE_FROM);
    }

    public ScaleInAnimation(float from) {
        mFrom = from;
    }

    public Animator[] getAnimators(View view) {
        ObjectAnimator scaleX = ObjectAnimator.ofFloat(view, "scaleX", mFrom, 1f);
        ObjectAnimator scaleY = ObjectAnimator.ofFloat(view, "scaleY", mFrom, 1f);
        return new ObjectAnimator[]{scaleX, scaleY};
    }
}

2.每个item的点击效果是一个自定义view，具体看BamLinearLayout.java

使用的话直接在xml中引用即可：

完整的项目地址：

https://github.com/buder-cp/base_component_learn/tree/master/diffut