iOS 老项目集成Flutter

1) 创建flutter module

1) 将iOS项目放在一个新建的文件夹里面

2) cd到新建的文件夹

3) 执行

$ flutter create -t module flutter_module

会在项目同级目录下生成一个flutter_module文件夹

2) 导入flutter库

1) 在项目的Podfile文件里添加以下内容(如果iOS项目里面没用cocoapod那么新建一个Podfile文件)

flutter_application_path = '../flutter_module'

load File.join(flutter_application_path, '.ios', 'Flutter', 'podhelper.rb')

install_all_flutter_pods(flutter_application_path)

2) 执行

$ pod install

可以看到导入相关的Flutter库

3) AppDelegate 配置

1) 导入 Flutter 和 FlutterPluginRegistrant

2) AppDelegate继承FlutterAppDelegate

3) 申明一个FlutterEngine类型的属性

4) 初始化engine

具体配置如下

import Flutter

import FlutterPluginRegistrant

class AppDelegate: FlutterAppDelegate {

 var flutterEngine:FlutterEngine?

 override func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {

 window = UIWindow(frame: UIScreen.main.bounds)

 window?.backgroundColor = UIColor.white

 window?.makeKeyAndVisible()

 window?.rootViewController = UIViewController()

 self.flutterEngine = FlutterEngine(name:"io.flutter", project: nil)

 self.flutterEngine?.run(withEntrypoint: nil)

 GeneratedPluginRegistrant.register(with: self)

 return super.application(application, didFinishLaunchingWithOptions: launchOptions)

 }

4) 页面跳转

if let flutterEngine =(UIApplication.shared.delegate as? AppDelegate)?.flutterEngine {

let vc = FlutterViewController(engine: flutterEngine, nibName: nil, bundle: nil)

navigationController?.pushViewController(vc, animated: true)

}