成品app直播源码，RecyclerView实现自动滚动效果

成品app直播源码，RecyclerView实现自动滚动效果实现的相关代码

public class PzAutoPageScrollRecyclerView extends RecyclerView implements Runnable {
    private String TAG = "PzAutoPageScrollRecyclerView";

    private int itemPageCount;
    private int itemAllCount;
    private int scrollTime;
    private int nowPage = 0;

    private HandlerThread mHandlerThread = new HandlerThread("PzAutoPageScrollRecyclerView");
    private Handler       mHandler;

    public PzAutoPageScrollRecyclerView(@NonNull Context context) {
        super(context);
    }

    public PzAutoPageScrollRecyclerView(@NonNull Context context, @Nullable AttributeSet attrs) {
        super(context, attrs);
    }

    public PzAutoPageScrollRecyclerView(@NonNull Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
    }

    public void init(int itemPageCount, int itemAllCount, int scrollTime) {
        this.itemPageCount = itemPageCount;
        this.itemAllCount = itemAllCount;
        this.scrollTime = scrollTime;
        mHandlerThread.start();
        mHandler = new Handler(mHandlerThread.getLooper());
    }

    public void starAuto(int scrollTime) {
        this.scrollTime = scrollTime;
        mHandler.postDelayed(this, scrollTime);
    }

    void stopAuto() {
        removeCallbacks(this);
    }

    void last() {
        if ((nowPage - 1) >= 0) {
            nowPage--;
            smoothScrollToPosition(nowPage * itemPageCount);
        }
    }


    void next() {
        if ((nowPage + 1) * itemPageCount < itemAllCount) {
            nowPage++;
            smoothScrollToPosition(nowPage * itemPageCount);
        }
    }

    @Override
    public void run() {
        if (itemPageCount < itemAllCount) {
            if ((nowPage + 1) * itemPageCount < itemAllCount) {
                nowPage++;
                smoothScrollToPosition(nowPage * itemPageCount);
            } else {
                nowPage = 1;
                smoothScrollToPosition(nowPage * itemPageCount);
                nowPage = 0;
                smoothScrollToPosition(nowPage * itemPageCount);
            }
        } else {
            mHandler.postDelayed(this, scrollTime);
        }
    }

    @Override
    public void onScrollStateChanged(int state) {
        super.onScrollStateChanged(state);
        if (getScrollState() == 0) {
            mHandler.postDelayed(this, scrollTime);
        }
    }

    public int getItemAllCount() {
        return itemAllCount;
    }

    public void setItemAllCount(int itemAllCount) {
        this.itemAllCount = itemAllCount;
    }

    public int getItemPageCount() {
        return itemPageCount;
    }

    public void setItemPageCount(int itemPageCount) {
        this.itemPageCount = itemPageCount;
    }

    public int getScrollTime() {
        return scrollTime;
    }

    public void setScrollTime(int scrollTime) {
        this.scrollTime = scrollTime;
    }
}