13 flutter channel

2022-02-13 | 阅读：

channel的创建

channel的创建需要两个参数
name：channel的唯一标识
binaryMessenger:消息信使，用于消息的接收和发送,可以传入FlutterViewController的实例

+ (instancetype)methodChannelWithName:(NSString*)name
                      binaryMessenger:(NSObject<FlutterBinaryMessenger>*)messenger;

调用到内部还有一个参数：codec

channel回调的实现

self.flutterInitChannel = [FlutterMethodChannel methodChannelWithName:@"syncData" binaryMessenger:self.engine.binaryMessenger];
[self.flutterInitChannel setMethodCallHandler:^(FlutterMethodCall * _Nonnull call, FlutterResult  _Nonnull result) {
    __strong typeof(self) strongSelf = weakSelf;
    [[FZFlutterChannelManager sharedInstance] dispatchChannel:call result:result context:strongSelf];
}];