原生iOS工程引入Flutter
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参考技术A 1.首先将flutter和原生项目放在同一级文件下面2.接下来要在原生的oc工程中引入cocoapod来做管理,打开podfile文件
3.执行pod install命令,flutter就引入进来了
4.从原生跳转flutter页面
引入头文件 import Flutter
Flutter-现有iOS工程引入Flutter
前言
Flutter 是一个很有潜力的框架,但是目前使用Flutter的APP并不算很多,相关资料并不丰富,介绍现有工程引入Flutter的相关文章也比较少。项目从零开始,引入Flutter操作比较简单,但是现有工程引入Flutter 需要费很多精力和时间,这里是我在完成现有iOS工程引入Flutter后写的一次总结文章。
Flutter 环境搭建
首先是要搭建Flutter环境,之前也写了一篇相关文章,可以参考一下
可以去官网查看:比较简单,这里不做赘述。
现有iOS工程引入Flutter
一、建立Flutter module
首先建立flutter module,主要是用于获取改flutter app中的Generated.xcconfig和framework
cd some/path/
$ flutter create -t module my_flutter
也可以用
flutter create app
建立flutter app,flutter app中也有Generated.xcconfig和framework
二、新建配置文件
根据官网,需要在工程中建立三个配置文件:
Flutter.xcconfig 、Debug.xcconfig、Release.xcconfig
在XCode工程对应目录,右击,选择新建文件(New File),选中创建xcconfig文件,如图:
在Flutter.xcconfig中填写:
//这里填写前面建立的flutter module 的Generated.xcconfig的路径
#include "../../my_flutter/.ios/Flutter/Generated.xcconfig"
ENABLE_BITCODE=NO
在 Debug.xcconfig中填写:
#include "../Flutter/Flutter.xcconfig"
在 Release.xcconfig中填写:
#include "../Flutter/Flutter.xcconfig"
FLUTTER_BUILD_MODE=release
如果工程中用cocoapods管理,需要在 Debug.xcconfig和Release.xcconfig添加pod的路径:
例如 Release.xcconfig中
#include "Flutter.xcconfig"
#include "工程路径/Pods/Target Support Files/******.release.xcconfig"//pod路径
FLUTTER_BUILD_MODE=release
在准备好这些xcconfig文件后,需要到XCode工程PROJECT(注意是PROJECT,不是Target)中的Configuration选项里,将对应的target选择成前面的xcconfig文件,Debug用Debug.xcconfig, Release用 Release.xcconfig
注意:进行Archive打包的时候,无论是Debug包还是Release包,需要切换到Release.xcconfig,不然会报错。
三、为编译Dart引入相关build phase
在工程的Build Phase中新建一个Run Script,用于编译时运行脚本,
建立方法如图:
建立Run Script后,需要移动其对应的位置,需要在Target dependencies之后,如果用cocoapods管理工程需要在,Check Pods Manifest.lock之后:
在脚本框中,填入以下代码,用于引进Flutter中的xcode_backend脚本:
"$FLUTTER_ROOT/packages/flutter_tools/bin/xcode_backend.sh" build
如图:
四、生成和添加Framework
完成前面的配置后,便可以在XCode对工程进行编译build (Command+B),在提示“ Build Success ” 后,在iOS工程文件夹中会生成一个Flutter文件夹,将其加入工程目录中,建议和刚才xcconfig所在目录并列,
右键项目目录 ,选择 Add Files to 'xxx' ,Options选Create groups,添加编译生成的Flutter文件夹。需要注意但是:Flutter目录下有个flutter_assets文件,不能使用Create groups的方式添加,只能用Creat folder references的Options, 否则Flutter页面会空白渲染不出来。可以删了flutter_assets在用Creat folder references重新添加。
在添加完Flutter 文件夹之后,去Embeded Binaries中添加App.framework和Flutter.framework
五、AppDelegate改造
Flutter需要和APP进行交互,需要对AppDelegate 进行改造:
AppDelegate.h文件中:
#import
@interface AppDelegate : FlutterAppDelegate <UIApplicationDelegate, FlutterAppLifeCycleProvider>
@end
AppDelegate.m 文件中:
#import "AppDelegate.h"
@interface AppDelegate ()
@end
@implementation AppDelegate
{
FlutterPluginAppLifeCycleDelegate *_lifeCycleDelegate;
}
- (instancetype)init {
if (self = [super init]) {
_lifeCycleDelegate = [[FlutterPluginAppLifeCycleDelegate alloc] init];
}
return self;
}
- (BOOL)application:(UIApplication*)application
didFinishLaunchingWithOptions:(NSDictionary*)launchOptions {
return [_lifeCycleDelegate application:application didFinishLaunchingWithOptions:launchOptions];
}
- (void)applicationDidEnterBackground:(UIApplication*)application {
[_lifeCycleDelegate applicationDidEnterBackground:application];
}
- (void)applicationWillEnterForeground:(UIApplication*)application {
[_lifeCycleDelegate applicationWillEnterForeground:application];
}
- (void)applicationWillResignActive:(UIApplication*)application {
[_lifeCycleDelegate applicationWillResignActive:application];
}
- (void)applicationDidBecomeActive:(UIApplication*)application {
[_lifeCycleDelegate applicationDidBecomeActive:application];
}
- (void)applicationWillTerminate:(UIApplication*)application {
[_lifeCycleDelegate applicationWillTerminate:application];
}
- (void)application:(UIApplication*)application
didRegisterUserNotificationSettings:(UIUserNotificationSettings*)notificationSettings {
[_lifeCycleDelegate application:application
didRegisterUserNotificationSettings:notificationSettings];
}
- (void)application:(UIApplication*)application
didRegisterForRemoteNotificationsWithDeviceToken:(NSData*)deviceToken {
[_lifeCycleDelegate application:application
didRegisterForRemoteNotificationsWithDeviceToken:deviceToken];
}
- (void)application:(UIApplication*)application
didReceiveRemoteNotification:(NSDictionary*)userInfo
fetchCompletionHandler:(void (^)(UIBackgroundFetchResult result))completionHandler {
[_lifeCycleDelegate application:application
didReceiveRemoteNotification:userInfo
fetchCompletionHandler:completionHandler];
}
- (BOOL)application:(UIApplication*)application
openURL:(NSURL*)url
options:(NSDictionary<UIApplicationOpenURLOptionsKey, id>*)options {
return [_lifeCycleDelegate application:application openURL:url options:options];
}
- (BOOL)application:(UIApplication*)application handleOpenURL:(NSURL*)url {
return [_lifeCycleDelegate application:application handleOpenURL:url];
}
- (BOOL)application:(UIApplication*)application
openURL:(NSURL*)url
sourceApplication:(NSString*)sourceApplication
annotation:(id)annotation {
return [_lifeCycleDelegate application:application
openURL:url
sourceApplication:sourceApplication
annotation:annotation];
}
- (void)application:(UIApplication*)application
performActionForShortcutItem:(UIApplicationShortcutItem*)shortcutItem
completionHandler:(void (^)(BOOL succeeded))completionHandler NS_AVAILABLE_IOS(9_0) {
[_lifeCycleDelegate application:application
performActionForShortcutItem:shortcutItem
completionHandler:completionHandler];
}
- (void)application:(UIApplication*)application
handleEventsForBackgroundURLSession:(nonnull NSString*)identifier
completionHandler:(nonnull void (^)(void))completionHandler {
[_lifeCycleDelegate application:application
handleEventsForBackgroundURLSession:identifier
completionHandler:completionHandler];
}
- (void)application:(UIApplication*)application
performFetchWithCompletionHandler:(void (^)(UIBackgroundFetchResult result))completionHandler {
[_lifeCycleDelegate application:application performFetchWithCompletionHandler:completionHandler];
}
- (void)addApplicationLifeCycleDelegate:(NSObject
*)delegate {
[_lifeCycleDelegate addDelegate:delegate];
}
六、新建FlutterViewController
主要配置基本上已经完成,只要在main.dart实现Flutter的业务代码即可
在原有工程中 ,建立FlutterViewController来承载main.dart实现的Flutter页面,如:
self.flutterViewController = [[FlutterViewController alloc] initWithProject:nil nibName:nil bundle:nil];
[self.navigationController pushViewController:self.flutterViewController animated:YES];
后语
到这里现有iOS工程引入Flutter的工作就完成了,一些细节上的修改需要根据场景进行修改,例如Flutter和Native的数据通信等。
链接:https://juejin.im/post/5bda622f6fb9a022523c4da8
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