现有iOS工程添加Futter模块
首先要安装flutter环境，参考：Flutter 环境搭建（Mac）
虽然能混合但还不支持用Xcode直接开发，可以用VSCode。
创建flutter模块
cd到项目根目录
执行命令 flutter create -t module my_flutterpodfile添加依赖
添加：
flutter_application_path = '../my_flutter'
eval(File.read(File.join(flutter_application_path, '.ios', 'Flutter', 'podhelper.rb')), binding)
'../my_flutter'
flutter_application_path 路径是 1 生成的文件夹
保存
安装 pod install 将Flutter模块作为依赖添加到主项目
3.配置build phase，为编译Dart 代码添加编译选项
xcode->build phase->如果没有点➕号->New Run Script Phase
添加脚本
"$FLUTTER_ROOT/packages/flutter_tools/bin/xcode_backend.sh" build
"$FLUTTER_ROOT/packages/flutter_tools/bin/xcode_backend.sh" embed
编译如果报bitcode错误，关闭bitcode，目前flutter不支持。
- AppDelegate设置
方法一：
添加头文件
#import <Flutter/Flutter.h>
#import <FlutterPluginRegistrant/GeneratedPluginRegistrant.h>
flutter协议 FlutterAppLifeCycleProvider
@interface AppDelegate : UIResponder <UIApplicationDelegate, FlutterAppLifeCycleProvider>
添加FlutterPluginAppLifeCycleDelegate的生命周期
@implementation AppDelegate
{
FlutterPluginAppLifeCycleDelegate *_lifeCycleDelegate;
}
- (instancetype)init {
if (self = [super init]) {
_lifeCycleDelegate = [[FlutterPluginAppLifeCycleDelegate alloc] init];
}
return self;
}
- (BOOL)application:(UIApplication*)application
didFinishLaunchingWithOptions:(NSDictionary*)launchOptions {
[GeneratedPluginRegistrant registerWithRegistry:self]; // Only if you are using Flutter plugins.
return [_lifeCycleDelegate application:application didFinishLaunchingWithOptions:launchOptions];
}
// Returns the key window's rootViewController, if it's a FlutterViewController.
// Otherwise, returns nil.
- (FlutterViewController*)rootFlutterViewController {
UIViewController* viewController = [UIApplication sharedApplication].keyWindow.rootViewController;
if ([viewController isKindOfClass:[FlutterViewController class]]) {
return (FlutterViewController*)viewController;
}
return nil;
}
- (void)touchesBegan:(NSSet*)touches withEvent:(UIEvent*)event {
[super touchesBegan:touches withEvent:event];
// Pass status bar taps to key window Flutter rootViewController.
if (self.rootFlutterViewController != nil) {
[self.rootFlutterViewController handleStatusBarTouches:event];
}
}
- (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<FlutterPlugin>*)delegate {
[_lifeCycleDelegate addDelegate:delegate];
}
@end
方法二：
也可以修改 AppDelegate 继承自 FlutterAppDelegate
#import <Flutter/Flutter.h>
@interface AppDelegate : FlutterAppDelegate
@end
修改AppDelegate.m文件：
#import <FlutterPluginRegistrant/GeneratedPluginRegistrant.h>
#include "AppDelegate.h"
@implementation AppDelegate
- (BOOL)application:(UIApplication *)application
didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
[GeneratedPluginRegistrant registerWithRegistry:self];
return [super application:application didFinishLaunchingWithOptions:launchOptions];
}
@end
5.简单使用 FlutterViewController
跳转到一个flutter的VC:
#import <Flutter/Flutter.h>
#import "ViewController.h"
@implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
FlutterViewController* flutterVC = [[FlutterViewController alloc] init];
[self presentViewController:flutterVC animated:YES completion:nil];
}
设置路由跳转的别的组件上:
[flutterVC setInitialRoute:@"xxxx"];
Flutter的程序入口：你的flutter模块目录/lib/main.dart，Flutter开发使用的语言是dart，百度百科：
Dart是面向对象的、类定义的、单继承的语言。它的语法类似C语言，可以转译为JavaScript，支持接口(interfaces)、混入(mixins)、抽象类(abstract classes)、具体化泛型(reified generics)、可选类型(optional typing)和sound type system [3] 。
