Android仿新浪微博滑动播放视频

   <p><strong>效果图</strong></p>    <p style="text-align:center"><img src="https://simg.open-open.com/show/77c13061fb49b7d9d13947bf0cbec924.gif"> <img src="https://simg.open-open.com/show/8bbd6fdbf5c131c21ba350e18915c91f.gif"></p>    <h2><strong>关键代码</strong></h2>    <p><strong>1.监听滚动事件</strong></p>    <p>首先要给listview添加setOnScrollListener监听,注意这个监听在recyclerView上是addOnScrollListener，也就是说下面代码同时支持recyclerView。</p>    <pre>  <code class="language-java">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   当前第一个可见的item              // visibleItemCount   当前可见的item个数              if (firstVisible == firstVisibleItem) {                  return;              }              firstVisible = firstVisibleItem;              visibleCount = visibleItemCount;              totalCount = totalItemCount;          }      });</code></pre>    <p>监听里会有两个方法， 我们用onScroll方法记录 当前第一个可见Item，以及可见Item总数，用onScrollStateChanged来监听手滑动屏幕的整个过程。 当onScrollStateChanged 中的scrollState字段值等于SCROLL_STATE_IDLE 时，代表本次滑动完毕并停止滚动��感兴趣的朋友可以自行百度另外两个参数的意思，没准对你的需求有帮助��。</p>    <p><strong>2.处理视频逻辑</strong></p>    <pre>  <code class="language-java">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&▭.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;  }</code></pre>    <p>首先是根据总数循环判断 Item 是否有视频，如果有再利用Rect类获取视图在屏幕坐标中的可视区域。基本核心代码就这些是不是非常简单？</p>    <h3><strong>视频播放器依赖</strong></h3>    <pre>  <code class="language-java">compile 'fm.jiecao:jiecaovideoplayer:4.6.3' </code></pre>    <p> </p>    <p>来自：http://zhangliwei.date/2016/09/05/Android仿新浪微博滑动播放视频/</p>    <p> </p>