listenLocation method

dynamic listenLocation (EventHandler onEvent, EventHandler onError)

set stream event callback, 设置StreamChannel的回调方法

onEvent: 接收到StreamChannel发送来事件的处理方法, onError:接收到StreamChannel发送来错误事件的处理方法

Implementation

static listenLocation(EventHandler onEvent, EventHandler onError) {
  _stream.receiveBroadcastStream().listen(onEvent, onError: onError);
}