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一、Flutter調(diào)用原生方法

這里我是原生跳轉(zhuǎn)到flutter頁(yè)面，然后通過(guò)點(diǎn)擊flutter頁(yè)面的按鈕和原生交互調(diào)用原生的返回方法回到原生頁(yè)面

iOS代碼

 // 跳轉(zhuǎn)到Flutter頁(yè)面
  let flutterVC = FlutterViewController.init()
  flutterVC.setInitialRoute("presentPage")
  flutterVC.modalPresentationStyle = .fullScreen
  self.navigationController?.setNavigationBarHidden(true, animated: true)
        
  self.navigationController?.pushViewController(flutterVC, animated: true)

// 初始化交互通道FlutterMethodChannel
  let presentChannel:FlutterMethodChannel = FlutterMethodChannel.init(name: "sf.flutter.io/sf_present", binaryMessenger: flutterVC as! FlutterBinaryMessenger)


  weak var weakSelf = self
// 添加監(jiān)聽(tīng)回調(diào)
  presentChannel.setMethodCallHandler { (call, result) in
            
            print(call.method)
            print(result)
            // 當(dāng)flutter調(diào)用了原生方法后，此回調(diào)會(huì)調(diào)用
           // call.method 為方法名，call對(duì)象里面還有參數(shù)屬性
            if call.method == "getNativeResult" {
                 weakSelf?.navigationController?.popViewController(animated: true)
                
            }else if call.method == "dismiss" {
                
                print("dismiss")
            }else{
                print(FlutterMethodNotImplemented)
            }
  }

flutter代碼

// 交互通道
  static const platform = const MethodChannel('sf.flutter.io/sf_present');

  Future<void> invokeNativeGetResult() async {
    try {
      // 調(diào)用原生方法并傳參，以及等待原生返回結(jié)果數(shù)據(jù),getNativeResult是方法名，{"key": "value"}是參數(shù)
      var result =
          await platform.invokeListMethod('getNativeResult', {"key": "參數(shù)1"});
    } catch (e) {}
  }

當(dāng)點(diǎn)擊某個(gè)按鈕的時(shí)候，調(diào)用invokeNativeGetResult函數(shù)，通過(guò)MethodChannel通道調(diào)用對(duì)應(yīng)的原生中的getNativeResult函數(shù)，即可。同時(shí)也可以攜帶參數(shù)，比如：{"key": "參數(shù)1"}

參考：http://www.itdecent.cn/p/ca0e47ffef71