问调用resume方法还是无效果，怎么处理？

this.localStream_.on('player-state-changed', event => {
      //console.log(`local stream ${event.type} player is ${event.state}`);
      if (event.state === 'PAUSED') {
          // 恢复本地流播放
           this.localStream_.resume();
      } else if (event.type === 'video' && event.state === 'PLAYING') {
        // dismiss the remote user UI placeholde
      } else if (event.type === 'video' && event.state === 'STOPPPED') {
        // show the remote user UI placeholde
      }
    });