android - 一次刷一个项目 Recyclerview

Question

我尝试为回收站 View 添加滚动监听器并制定了一些逻辑，但我无法一次滑动一项。我在互联网上进行了一些搜索，但我得到了一些具有自定义回收器 View 的第三方库。我们可以在回收站 View 中一次实现一项滑动吗？如果是请告诉如何？ 像这样一次滑动一项 image .

Answer 1

这软化了项目之间的移动:

public class SnapHelperOneByOne extends LinearSnapHelper {

    @Override
    public int findTargetSnapPosition(RecyclerView.LayoutManager layoutManager, int velocityX, int velocityY) {

        if (!(layoutManager instanceof RecyclerView.SmoothScroller.ScrollVectorProvider)) {
            return RecyclerView.NO_POSITION;
        }

        final View currentView = findSnapView(layoutManager);

        if (currentView == null) {
            return RecyclerView.NO_POSITION;
        }

        LinearLayoutManager myLayoutManager = (LinearLayoutManager) layoutManager;

        int position1 = myLayoutManager.findFirstVisibleItemPosition();
        int position2 = myLayoutManager.findLastVisibleItemPosition();

        int currentPosition = layoutManager.getPosition(currentView);

        if (velocityX > 400) {
            currentPosition = position2;
        } else if (velocityX < 400) {
            currentPosition = position1;
        }

        if (currentPosition == RecyclerView.NO_POSITION) {
            return RecyclerView.NO_POSITION;
        }

        return currentPosition;
    }
}

例子:

LinearSnapHelper linearSnapHelper = new SnapHelperOneByOne();
linearSnapHelper.attachToRecyclerView(recyclerView);