RecyclerView 横向滑动，选中Item默认滚动到屏幕中间

qq_30730419

于 2020-09-04 11:22:29 发布

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文章标签： android 安卓

本文链接：https://blog.youkuaiyun.com/qq_30730419/article/details/108400746

版权

本文介绍如何在Android的RecyclerView中实现横向滑动，并确保被选中的Item自动滚动到屏幕中央。主要涉及步骤包括创建相关类以及设置点击事件来触发滚动功能。

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1、创建类

public class CenterLayoutManager extends LinearLayoutManager {
    public CenterLayoutManager(Context context) {
        super(context);
    }

    public CenterLayoutManager(Context context, int orientation, boolean reverseLayout) {
        super(context, orientation, reverseLayout);
    }

    public CenterLayoutManager(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
        super(context, attrs, defStyleAttr, defStyleRes);
    }

    @Override
    public void smoothScrollToPosition(RecyclerView recyclerView, RecyclerView.State state, int position) {
        RecyclerView.SmoothScroller smoothScroller = new CenterSmoothScroller(recyclerView.getContext());
        smoothScroller.setTargetPosition(position);
        startSmoothScroll(smoothScroller);
    }

    private static class CenterSmoothScroller extends LinearSmoothScroller {

        public CenterSmoothScroller(Context context) {
            super(context);
        }