1 CameraViewHolder中有一些回调，用来更新状态
但是好像没有生效 回调函数也执行了，但是状态没有更新
代码如下

 class CameraViewHolder extends RecyclerView.ViewHolder implements Item {  @BindView(R.id.title_ll) LinearLayout cameraHeadGroup; @BindView(R.id.camera_title_tv) TextView cameraTitleTv; @BindView(R.id.camera_empty_iv) ImageView cameraEmptyIv; @BindView(R.id.camera_live) TextureVideoView playView; @BindView(R.id.camera_label_iv) ImageView cameraLabelIv; @BindView(R.id.camera_status_iv) ImageView cameraStatusIv; @BindView(R.id.live_progress) ProgressBar mProgressBar; @BindView(R.id.btn_refresh) ImageButton btnRefresh;  private Device realDevice;  private int videoState = START_IDLE;    private static final int START_IDLE = 0; private static final int START_ACTIVED = 1; private static final int START_DEACTIVED = 2;   private CameraListAdapter mCameraListAdapter;  CameraViewHolder(View view,CameraListAdapter cameraListAdapter){      super(view);      mCameraListAdapter = cameraListAdapter;      ButterKnife.bind(this,view);  }  public void onBind(final int position , Device item){      realDevice = item;     cameraTitleTv.setText(item.getTitle());     btnRefresh.setVisibility(View.GONE);     mProgressBar.setVisibility(View.VISIBLE);     TextureVideoView.PlayerCallback callback = new TextureVideoView.PlayerCallback() {         @Override         public void cameraPlayFailed(View view, String error) {             mProgressBar.setVisibility(View.GONE);             btnRefresh.setVisibility(View.VISIBLE);             KLog.d("播放失败");              cameraEmptyIv.setVisibility(View.GONE);             mCameraListAdapter.notifyItemChanged(position,null);          }          @Override         public void cameraPlayGotData(View view) {             KLog.d("播放成功");             mProgressBar.setVisibility(View.GONE);             btnRefresh.setVisibility(View.GONE);             cameraStatusIv.setBackgroundResource(R.drawable.mon_green);             cameraEmptyIv.setVisibility(View.GONE);             mCameraListAdapter.notifyItemChanged(position,null);           }          @Override         public void cameraStop() {             cameraEmptyIv.setVisibility(View.VISIBLE);             cameraStatusIv.setBackgroundResource(R.drawable.mon_red);             mCameraListAdapter.notifyItemChanged(position,null);         }     };      playView.setPlayerCallback(callback);     playView.setRealDevice(item);    }  private void reset(){             }  @OnClick(R.id.btn_refresh) void refresh(){     mProgressBar.setVisibility(View.VISIBLE);     btnRefresh.setVisibility(View.GONE);     playView.start(); }   @Override public void setActive(View newActiveView, int newActiveViewPosition) {     videoState = START_ACTIVED;               KLog.d("active:" + newActiveViewPosition); }  @Override public void deactivate(View currentView, int position) {     KLog.d("deactivate :" + position);     videoState = START_DEACTIVED; } }