紧接着上次的FlutterBoost Android版本接入，这次主要讲iOS相关的接入
1.创建Flutter module
这个步骤前面的Android版本一样
flutter create -t module flutter_module
2.iOS开始接入
2.1 Pod集成
现在一般的iOS应用都是用cocopod集成的，一般都有对应的Podfile文件，在对应的Podfile文件末尾处加入以下代码
flutter_application_path = '../flutter_module'
eval(File.read(File.join(flutter_application_path, '.ios', 'Flutter', 'podhelper.rb')), binding)
最好也和Android一样，分开两个工程，iOS工程和flutter功能是平级的，这样互不影响
之后再iOS工程目录下执行 pod install 命令，会在pod下面的Development Pods文件下面看到Flutter 和FlutterPluginRegistrant 两个文件。
如果出现啥错误，记得在工程的BuildSettings 下面检查Enable BitCode是否为NO。
2.2添加编译脚本
"$FLUTTER_ROOT/packages/flutter_tools/bin/xcode_backend.sh" build
"$FLUTTER_ROOT/packages/flutter_tools/bin/xcode_backend.sh" embed
在BuildPhases 栏下，点击左上角的加号(+) 选择New Run Script Phase填入以上脚本
之后执行Build 编译，项目应该能运行起来，如果出现执行上面的步骤。
3.混编代码集成
修改AppDelegate.h/m文件
#import <UIKit/UIKit.h>
#import <Flutter/Flutter.h>
@interface AppDelegate : FlutterAppDelegate <UIApplicationDelegate>
@property (strong, nonatomic) UIWindow *window;
+ (AppDelegate *)sharedAppDelegate;
@end
h头文件需要集成FlutterAppDelegate
#import <FlutterPluginRegistrant/GeneratedPluginRegistrant.h>
#import "AppDelegate.h"
#import "AppDelegate+Init.h"
@interface AppDelegate ()
@end
@implementation AppDelegate
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
self.window.backgroundColor = [UIColor whiteColor];
[self initConfigWithOptions:launchOptions];
[self.window makeKeyAndVisible];
[GeneratedPluginRegistrant registerWithRegistry:self];
return YES;
}
在AppDelegate.m文件的didFinishLaunchingWithOptions方法中加入插件集成的方法
[GeneratedPluginRegistrant registerWithRegistry:self];
增加ViewController的业务跳转
#import <Flutter/Flutter.h>
#import "ViewController.h"
@implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
[button addTarget:self
action:@selector(handleButtonAction)
forControlEvents:UIControlEventTouchUpInside];
[button setTitle:@"点我" forState:UIControlStateNormal];
[button setBackgroundColor:[UIColor redColor]];
button.frame = CGRectMake(80.0, 210.0, 160.0, 40.0);
[self.view addSubview:button];
}
- (void)handleButtonAction {
FlutterViewController* flutterViewController = [[FlutterViewController alloc] init];
[self presentViewController:flutterViewController animated:false completion:nil];
}
@end
这样即可点击跳转到Flutter默认生成的main界面
4.FlutterBoost接入
4.1 Flutter 工程接入FlutterBoost
在对应的pubspec.yaml文件中加入依赖，pubspec.yaml就是一个配置文件
flutter_boost:
git:
url: 'https://github.com/alibaba/flutter_boost.git'
ref: '0.0.411'
之后调用Package get，右上角即可查看，之后还是在命令行工具下在flutte_module 根目下，执行flutter build ios 以及在iOS的根目录下执行pod install 使iOS和flutter都添加FlutterBoost插件。
4.2Flutter中main.dart文件中配置
可以参考前面的Android版本
4.3 iOS工程的修改
4.3.1 添加libc++
需要 将libc++ 加入 "Linked Frameworks and Libraries"
这个主要是项目的General 的Linked Frameworks and Libraries 栏下，点击加号（+）搜索libc++,找到libc++.tbd即可
4.3.2 修改AppDelegate.h/m文件
#import <UIKit/UIKit.h>
#import <flutter_boost/FlutterBoost.h>
@interface AppDelegate : FLBFlutterAppDelegate <UIApplicationDelegate, XGPushDelegate>
@property (strong, nonatomic) UIWindow *window;
+ (AppDelegate *)sharedAppDelegate;
@end
需要继承FLBFlutterAppDelegate ，而对应的.m文件可保持不变或者去掉
[GeneratedPluginRegistrant registerWithRegistry:self];
都可以
4.3.3 实现FLBPlatform协议
应用程序实现FLBPlatform协议方法，可以使用官方demo中的DemoRouter
@interface DemoRouter : NSObject<FLBPlatform>
@property (nonatomic,strong) UINavigationController *navigationController;
+ (DemoRouter *)sharedRouter;
@end
@implementation DemoRouter
- (void)openPage:(NSString *)name
params:(NSDictionary *)params
animated:(BOOL)animated
completion:(void (^)(BOOL))completion
{
if([params[@"present"] boolValue]){
FLBFlutterViewContainer *vc = FLBFlutterViewContainer.new;
[vc setName:name params:params];
[self.navigationController presentViewController:vc animated:animated completion:^{}];
}else{
FLBFlutterViewContainer *vc = FLBFlutterViewContainer.new;
[vc setName:name params:params];
[self.navigationController pushViewController:vc animated:animated];
}
}
- (void)closePage:(NSString *)uid animated:(BOOL)animated params:(NSDictionary *)params completion:(void (^)(BOOL))completion
{
FLBFlutterViewContainer *vc = (id)self.navigationController.presentedViewController;
if([vc isKindOfClass:FLBFlutterViewContainer.class] && [vc.uniqueIDString isEqual: uid]){
[vc dismissViewControllerAnimated:animated completion:^{}];
}else{
[self.navigationController popViewControllerAnimated:animated];
}
}
@end
也可以自己根据此修改。其中的openPage 方法会接收来至flutter-->native以及native-->flutter的页面跳转，可以根据用户自由的书写
4.3.5 初始化FlutterBoost
[FlutterBoostPlugin.sharedInstance startFlutterWithPlatform：router
onStart：^（FlutterViewController * fvc）{
}];
官方demo是在AppDelegate中初始化的，可以修改FLBPlatform协议实现类完成对应的操作对应的初始化做
5.页面跳转
Native-->Flutter
FLBFlutterViewContainer *vc = FLBFlutterViewContainer.new;
[vc setName:name params:params];
[self.navigationController presentViewController:vc animated:animated completion:^{}];
Flutter-->Native
FlutterBoost.singleton.openPage("pagename", {}, true);
最终都会跳转到FLBPlatform 协议实现类的openPage 方法中，很多操作都是在FLBPlatform协议实现类中，包括页面跳转，关闭，以及对应的一些Flutter 和Native通信相关的。
版本升级1.9.1
iOS的pod文件需要修改
flutter_application_path = 'path/to/my_flutter/'
load File.join(flutter_application_path, '.ios', 'Flutter', 'podhelper.rb')
target 'MyApp' do
install_all_flutter_pods(flutter_application_path)
end
target 'MyAppTests' do
install_all_flutter_pods(flutter_application_path)
end
并且需要去掉下面的脚本
"$FLUTTER_ROOT/packages/flutter_tools/bin/xcode_backend.sh" build
"$FLUTTER_ROOT/packages/flutter_tools/bin/xcode_backend.sh" embed
具体详情可以查看GitHub Flutter官方文档
