4.2.0版本 removeListener = BoostChannel.instance.addEventListener("yourEventKey", (key, arguments) { ///deal with your event here return; });

[LiFuPeng]

4.2.0版本 按照文档接入，在flutter接收事件的方法，报错：
removeListener = BoostChannel.instance.addEventListener("yourEventKey", (key, arguments) {
///deal with your event here

  return;
});

这个方法报错，烦请完善开发文档

[lanyuzx]

需要返回一个Future

[Ldies]

state.removeListener = BoostChannel.instance.addEventListener("yourEventKey", (key, arguments) {
///deal with your event here
return Future(() => null);
});

[maolinding]

state.removeListener = BoostChannel.instance.addEventListener("yourEventKey", (key, arguments) {
///deal with your event here
return Future(() => null);
});

启动后，页面展示不出来