具体内容如下

使用RecyclerView+PagerSnapHelper实现

public class DouYinLayoutManager extends LinearLayoutManager implements RecyclerView.OnChildAttachStateChangeListener{  //判断是否上滑还是下滑  private int mDrift;  private OnViewPagerListener onViewPagerListener;  //吸顶，吸底  private PagerSnapHelper pagerSnapHelper;  public OnViewPagerListener getOnViewPagerListener() {    return onViewPagerListener;  }  public void setOnViewPagerListener(OnViewPagerListener onViewPagerListener) {    this.onViewPagerListener = onViewPagerListener;  }  public DouYinLayoutManager(Context context) {    super(context);  }  public DouYinLayoutManager(Context context, int orientation, boolean reverseLayout) {    super(context, orientation, reverseLayout);    pagerSnapHelper = new PagerSnapHelper();  }  /**   * 当manager完全添加到recycleview中是会被调用   * @param view   */  @Override  public void onAttachedToWindow(RecyclerView view) {    view.addOnChildAttachStateChangeListener(this);    pagerSnapHelper.attachToRecyclerView(view);    super.onAttachedToWindow(view);  }  @Override  public boolean canScrollVertically() {    return super.canScrollVertically();  }  @Override  public int scrollVerticallyBy(int dy, RecyclerView.Recycler recycler, RecyclerView.State state) {    mDrift = dy;    return super.scrollVerticallyBy(dy, recycler, state);  }  @Override  public void onChildViewAttachedToWindow(@NonNull View view) {    if (mDrift > 0){      //向上滑      if (onViewPagerListener != null && Math.abs(mDrift) == view.getHeight()){        onViewPagerListener.onPageSelected(false,view);      }    }else {      //向下滑      if (onViewPagerListener != null && Math.abs(mDrift) == view.getHeight()){        onViewPagerListener.onPageSelected(true,view);      }    }  }  @Override  public void onChildViewDetachedFromWindow(@NonNull View view) {    if (mDrift >= 0){      //向上滑      if (onViewPagerListener != null){        onViewPagerListener.onPageRelease(true,view);      }    }else {      //向下滑      if (onViewPagerListener != null){        onViewPagerListener.onPageRelease(false,view);      }    }  }  @Override  public void onScrollStateChanged(int state) {    switch (state){      case RecyclerView.SCROLL_STATE_IDLE:        //当前显示的item        View snapView = pagerSnapHelper.findSnapView(this);        if (onViewPagerListener != null){          onViewPagerListener.onPageSelected(false,snapView);        }        break;    }    super.onScrollStateChanged(state);  }}

recyclerView.setLayoutManager()即可

recyclerView = findViewById(R.id.recyclerView_dy);    douYinLayoutManager = new DouYinLayoutManager(this, OrientationHelper.VERTICAL,false);    recyclerView.setLayoutManager(douYinLayoutManager);    recyclerView.setAdapter(new MyAdapter());    douYinLayoutManager.setOnViewPagerListener(new OnViewPagerListener() {      @Override      public void onPageRelease(boolean isNest, View position) {        releaseVideo(position);      }      @Override      public void onPageSelected(boolean isButten, View position) {        playVideo(position);      }    });  }