先來看看效果圖
關鍵代碼
1.監聽滾動事件
首先要給listview添加setOnScrollListener監聽,注意這個監聽在recyclerView上是addOnScrollListener，也就是說下面代碼同時支持recyclerView。
public int firstVisible=0,visibleCount=0, totalCount=0; videoList.setOnScrollListener(new AbsListView.OnScrollListener() { @Override public void onScrollStateChanged(AbsListView view, int scrollState) { switch (scrollState) { case AbsListView.OnScrollListener.SCROLL_STATE_FLING: Log.e("videoTest", "SCROLL_STATE_FLING"); break; case AbsListView.OnScrollListener.SCROLL_STATE_IDLE: Log.e("videoTest", "SCROLL_STATE_IDLE"); autoPlayVideo(view); break; case AbsListView.OnScrollListener.SCROLL_STATE_TOUCH_SCROLL: Log.e("videoTest", "SCROLL_STATE_TOUCH_SCROLL"); break; default: break; } } @Override public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) { // firstVisibleItem 當前第一個可見的item // visibleItemCount 當前可見的item個數 if (firstVisible == firstVisibleItem) { return; } firstVisible = firstVisibleItem; visibleCount = visibleItemCount; totalCount = totalItemCount; } });監聽里會有兩個方法，我們用onScroll方法記錄 當前第一個可見Item，以及可見Item總數，用onScrollStateChanged來監聽手滑動屏幕的整個過程。 當onScrollStateChanged 中的scrollState字段值等于SCROLL_STATE_IDLE 時，代表本次滑動完畢并停止滾動🙄感興趣的朋友可以自行百度另外兩個參數的意思，沒準對你的需求有幫助🙄。
2.處理視頻邏輯
void autoPlayVideo(AbsListView view){ Log.e("videoTest", "firstVisiblePos = " + firstVisible + "visibleItemCount = " + visibleCount); for (int i = 0; i < visibleCount; i++) { if (view!=null&&view.getChildAt(i)!=null&&view.getChildAt(i).findViewById(R.id.videoplayer) != null) { JCVideoPlayerStandard videoPlayerStandard1 = (JCVideoPlayerStandard) view.getChildAt(i).findViewById(R.id.videoplayer); Rect rect = new Rect(); videoPlayerStandard1.getLocalVisibleRect(rect); int videoheight3 = videoPlayerStandard1.getHeight(); Log.e("videoTest","i="+i+"==="+"videoheight3:"+videoheight3+"==="+"rect.top:"+rect.top+"==="+"rect.bottom:"+rect.bottom); if (rect.top==0&&rect.bottom==videoheight3) { if (videoPlayerStandard1.currentState == JCVideoPlayer.CURRENT_STATE_NORMAL || videoPlayerStandard1.currentState == JCVideoPlayer.CURRENT_STATE_ERROR) { Log.e("videoTest", videoPlayerStandard1.currentState + "======================performClick======================"); videoPlayerStandard1.startButton.performClick(); VPApplication.instance.VideoPlaying=videoPlayerStandard1; } return; } } } Log.e("videoTest", "======================releaseAllVideos====================="); JCVideoPlayer.releaseAllVideos(); VPApplication.instance.VideoPlaying=null;}首先是根據總數循環判斷 Item 是否有視頻，如果有再利用Rect類獲取視圖在屏幕坐標中的可視區域。
小結
好了，基本核心代碼就是以上的這些，是不是很簡單呢？感興趣的大家快快自己動手操作起來吧，希望這篇文章對大家能有所幫助，如果有疑問大家可以留言交流。
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