iOS项目嵌入Flutter模块

1.创建Flutter模块

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ksnowlv@MacBook-Pro-3 FlutterProjects % flutter create -t module flutter_module
Creating project flutter_module...
Resolving dependencies in flutter_module... 
Got dependencies in flutter_module.
Wrote 12 files.

All done!
Your module code is in flutter_module/lib/main.dart.
ksnowlv@MacBook-Pro-3 FlutterProjects % ls
README.md	base_demo	flutter_module	hello_world

2.创建iOS项目

使用XCode创建iOS项目,我使用的XCode 15.3需要修改下项目配置ENABLE_USER_SCRIPT_SANDBOXING为NO,见链接

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ksnowlv@MacBook-Pro-3 FlutterProjects % ls
FlutterModuleTest	README.md		base_demo		flutter_module		hello_world
ksnowlv@MacBook-Pro-3 FlutterProjects % 

注意FlutterModuleTest与flutter_module在同级目录。

3.创建iOS项目Podfile

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# Uncomment the next line to define a global platform for your project
 platform :ios, '12.0'

# 指定flutter模块路径
flutter_application_path = '/Users/ksnowlv/Documents/FlutterProjects/FlutterProjects/flutter_module'
load File.join(flutter_application_path, '.ios', 'flutter', 'podhelper.rb') 



target 'FlutterModuleTest' do
  # Comment the next line if you don't want to use dynamic frameworks
   use_frameworks!
    # 加载flutter模块
  install_all_flutter_pods(flutter_application_path)

  # Pods for UseFlutterModule
  pod 'Masonry', '~> 1.0'

end

# 新增的配置
post_install do |installer|
  flutter_post_install(installer) if defined?(flutter_post_install)
end

使用pod install命令安装

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ksnowlv@MacBook-Pro-3 FlutterModuleTest % pod install
Analyzing dependencies
Downloading dependencies
Installing Flutter (1.0.0)
Installing FlutterPluginRegistrant (0.0.1)
Installing Masonry (1.1.0)
Generating Pods project
Integrating client project

[!] Please close any current Xcode sessions and use `FlutterModuleTest.xcworkspace` for this project from now on.
Pod installation complete! There are 3 dependencies from the Podfile and 3 total pods installed.

[!] Your project does not explicitly specify the CocoaPods master specs repo. Since CDN is now used as the default, you may safely remove it from your repos directory via `pod repo remove master`. To suppress this warning please add `warn_for_unused_master_specs_repo => false` to your Podfile.
ksnowlv@MacBook-Pro-3 FlutterModuleTest % 

4.显示flutter页面

  • AppDelegate.swift
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import UIKit
import Flutter
import FlutterPluginRegistrant

@main
class AppDelegate: UIResponder, UIApplicationDelegate {


    lazy var flutterEngine = FlutterEngine(name: "My Flutter engine!")

    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
        // Override point for customization after application launch.
        
        flutterEngine.run()
        GeneratedPluginRegistrant.register(with: self.flutterEngine)
        
        return true
    }
 }
  • ViewController.swift
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import UIKit

import Flutter

class ViewController: UIViewController {

    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view.
    }
    
    @IBAction func showFlutterView()  {
        let flutterEngine = (UIApplication.shared.delegate as! AppDelegate).flutterEngine
        let flutterViewController = FlutterViewController(engine: flutterEngine, nibName: nil, bundle: nil)
        let navigationController = UINavigationController(rootViewController: flutterViewController)
        navigationController.navigationBar.topItem?.rightBarButtonItem = UIBarButtonItem(barButtonSystemItem: .stop, target: self, action: #selector(dismissFlutterViewController))
        present(navigationController, animated: true, completion: nil)
    }
    
    @objc func dismissFlutterViewController() {
           dismiss(animated: true, completion: nil)

   }
}

5.效果

image

image

6.可能遇见的问题

  • 问题一:libarclite库缺失

    SDK does not contain ’libarclite’ at the path ‘/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/arc/libarclite_iphonesimulator.a’; try increasing the minimum deployment target