1. 新建Flutter項(xiàng)目或者從代碼倉庫pull一個(gè)項(xiàng)目到本地，命令如下：

flutter create -t module flutter_module

2. 新建Config目錄，在這個(gè)目錄下新建3個(gè)配置文件

• Flutter.xccofig，內(nèi)容如下：

#include "../../flutter_module/.ios/Flutter/Generated.xcconfig"
ENABLE_BITCODE=NO

其中”flutter_module“為Flutter項(xiàng)目目錄，我的Flutter和iOS項(xiàng)目差了2個(gè)目錄，所以在前面有2個(gè)../../，不把2個(gè)放在同級(jí)別，是因?yàn)镕lutter項(xiàng)目是有自己的git，讓2個(gè)項(xiàng)目的git分開

項(xiàng)目目錄結(jié)構(gòu).png

• Debug.xccofig，內(nèi)容如下：

#include "Flutter.xcconfig"
#include "Pods/Target Support Files/Pods-iOS項(xiàng)目名稱/Pods-iOS項(xiàng)目名稱.debug.xcconfig"

如果沒有pod管理，第二行可以不用。其中”iOS項(xiàng)目名稱“改成自己的項(xiàng)目名稱即可

• Release.xccofig，內(nèi)容如下：

#include "Flutter.xcconfig"
#include "Pods/Target Support Files/Pods-iOS項(xiàng)目名稱/Pods-iOS項(xiàng)目名稱.debug.xcconfig"
FLUTTER_BUILD_MODE=release

3. 修改Xcode配置

• 關(guān)閉Enable Bitcode

  
  
  image.png

• 修改debug（我沒改也能運(yùn)行，不知道為啥）

  
  
  image.png
• 添加Run Script

"$FLUTTER_ROOT/packages/flutter_tools/bin/xcode_backend.sh" build
"$FLUTTER_ROOT/packages/flutter_tools/bin/xcode_backend.sh" embed

image.png

4. 修改pod，增加如下內(nèi)容

flutter_application_path = '../../flutter_module'
eval(File.read(File.join(flutter_application_path, '.ios', 'Flutter', 'podhelper.rb')), binding)

然后執(zhí)行pod install

5.修改APPDelegate.swfit

import UIKit
import SVProgressHUD
import FlutterPluginRegistrant

@UIApplicationMain
class AppDelegate: FlutterAppDelegate {
//    var window: UIWindow?
    override func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
        let loginVC = LoginViewController()
        self.window = UIWindow(frame: UIScreen.main.bounds)
        self.window?.rootViewController = loginVC
        self.window?.makeKeyAndVisible()
        
        return super.application(application, didFinishLaunchingWithOptions: launchOptions)
    }
}

6. 在項(xiàng)目中運(yùn)行代碼即可(ios編譯運(yùn)行前，先運(yùn)行編譯flutter項(xiàng)目，生成一些必要的文件)

import Flutter

let vc = FlutterViewController()
self.present(vc, animated: true, completion: nil)

參考文章：
iOS老項(xiàng)目集成Flutter（iOS混編Flutter）
添加Flutter到現(xiàn)有iOS的項(xiàng)目
iOS Native混編Flutter交互實(shí)踐