Flutter調(diào)用原生方法并且傳參

Flutter

Future reportError(errorJson)async{
  const platform = const MethodChannel("com.xxx.xxx");
  var result;
  try{
    result = await platform.invokeMethod('reportErrorMethod',errorJson);
    return Future.value(result);
  }on PlatformException catch(e){
    return Future.error(e.toString());
  }
}

OC

新建文件.h
#import <Foundation/Foundation.h>
#import <Flutter/Flutter.h>
NS_ASSUME_NONNULL_BEGIN

@interface FlutterNativePlugin : NSObject<FlutterPlugin>

@end

NS_ASSUME_NONNULL_END


新建文件.m
#import "FlutterNativePlugin.h"

@implementation FlutterNativePlugin
+ (void)registerWithRegistrar:(NSObject<FlutterPluginRegistrar> *)registrar{
    FlutterMethodChannel *channel = [FlutterMethodChannel methodChannelWithName:@"com.xxx.xxx" binaryMessenger:[registrar messenger]];
    FlutterNativePlugin *instance = [[FlutterNativePlugin alloc]init];
    [registrar addMethodCallDelegate:instance channel:channel];
}

- (void)handleMethodCall:(FlutterMethodCall *)call result:(FlutterResult)result{
    if ([@"isChinese" isEqualToString:call.method]) {
        result([NSNumber numberWithBool:YES]);
    }else if([@"reportErrorMethod" isEqualToString:call.method]){
        //flutter傳給原生的參數(shù)
        NSString * para = call.arguments;
        if (para.length != 0) {
            //OC傳參給Flutter
            result([NSString stringWithFormat:@"從原生返回過來的==>%@",para]);
        }else{
      //向flutter拋出異常
        result([FlutterError errorWithCode:@"404" message:[NSString stringWithFormat:@"我是異常信息"] details:@"我是異常描述"]);
        }
    }else{
        result (FlutterMethodNotImplemented);
    }
}
@end

MethodChannel方式
待續(xù)

Plugin包

 ##需要引用iOS自定義framework庫。 
 在podspec下， 通過s.subspec的方式，指定正確的framework路徑
  s.subspec 'xxxxFramework' do |ss|
        ss.source_files = 'xxxxFramework/**/*.{h,m}'
        ss.resource = 'xxxxFramework/**/*.{bundle,lic}'
        ss.vendored_frameworks = 'xxxxFramework/xxxx.framework'
  end
##需要引用iOS系統(tǒng)framework庫。
在podspec下
#依賴系統(tǒng)Accelerate.framework
  s.frameworks = 'Accelerate'
#依賴libc++.tbd , 去除lib前綴
  s.libraries = 'c++'