一、flutter提供的FlutterMethodChanel与原生(ios&android)进行交换

       flutter与原生交互图：

ios注册flutter调用通道

//oc 注册flutter通信频道，方便flutter调用FlutterMethodChannel* batteryChannel = [FlutterMethodChannelmethodChannelWithName:@"samples.flutter.dev/battery"binaryMessenger:self.binaryMessenger];__weak typeof(self) weakSelf = self;[batteryChannel setMethodCallHandler:^(FlutterMethodCall* call, FlutterResult result) {// Note: this method is invoked on the UI thread.NSLog(@"flutter call: %@  %@",call.method,call.arguments);if([@"jimi" isEqualToString:call.method]){NSDictionary*  dic = call.arguments;NSMutableDictionary* param = [BHB2cSingel getBaohongHeader];NSMutableString* data = [BHB2cSingel getBaohongHeaderParam:dic];result(@{@"code":@(200),@"token":[[BHUserCenter defaultCenter] token] ? [[BHUserCenter defaultCenter] token] : @"" ,@"data":data,@"header":param,});}}];

flutter 调用原生通道

static const platform = const MethodChannel('samples.flutter.dev/battery');
static  Future<Map> jimi(Map param) async {String batteryLevel;try {//等待返回结果// final int result = await platform.invokeMethod('jimi',{"buque":"时间分开了"}).then((value) {//   print(value);//// });Map  res = await platform.invokeMethod('jimi',param == null ? {} : param);print(res);return res;} on PlatformException catch (e) {batteryLevel = "Failed to get battery level: '${e.message}'.";}}

二、App与b2c交换关系图

三、b2c依赖原生接口，原生必须实现一下接口

   接口名      功能

   jimi.          获取token, 获取头信息，对参数进行加密

isHiddeTabbar   隐藏原生底部导航菜单

pay.   调用支付功能，支付宝，微信

 back.   原生返回上一个界面

share 调用原生分享功能

openWeb 原生打开一个h5界面