private void shareToTv() {
   Toast.makeText(mContext, "开始连接电视中", Toast.LENGTH_SHORT).show();
   showProgressView(true);
   DLNAContainer.getInstance().setSelectedDevice(mDevices.get(0));
   mSelectDevice = DLNAContainer.getInstance().getSelectedDevice();
   setController(new MultiPointController());
   if (mController == null || DLNAContainer.getInstance().getSelectedDevice() == null) {
     Toast.makeText(mContext, "数据异常", Toast.LENGTH_SHORT).show();
     return;
   }
   playVideoOnTv(mNowPlayVideo.getPlayUrl().getFormatUrl());
 }
 /** 显示推送视频播放控制页面 */
 private void showDLNAController() {
   String name = DLNAContainer.getInstance().getSelectedDevice().getFriendlyName();
   String title =
       mContext
           .getResources()
           .getString(R.string.dlna_device_title, TextUtils.isEmpty(name) ? "您的电视" : name);
   mDLNARootLayout.setVisibility(VISIBLE);
   ((TextView) mDLNARootLayout.findViewById(R.id.txt_dlna_title)).setText(title);
 }
 /** 检测DLNA信息,如果有支持的设备,显示按钮 */
 private void initDLNAInfo() {
   mDevices = DLNAContainer.getInstance().getDevices();
   setController(new MultiPointController());
   setDLNAButton(mDevices.size() > 0);
 }