iOS项目集成react native就这几步

七牛的图片在这里竟然显示不了... 能够到简书上看图node

没事写个记录, 也算是温故而知新吧. 以下效果:react

react-native-cli和npm安装不在本文范围.如下react native简称RN.ios

如今RN也愈来愈方便了,集成进原生项目也很是简单.就这下面几个步骤.git

咱们有一个iOS原生项目叫 Helloworld, 是使用Cocoapods作包管理, RN也是Cocoapods接入. 目录结构以下:github

1.建立RN

  1. 在项目目录下建立reactnative文件夹, 在这个文件夹里建立两个文件index.ios.jspackage.json;npm

  2. package.json添加如下内容json

    {
        "name": "Helloworld",
        "version": "0.0.1",
        "private": true,
        "scripts": {
          "start": "node node_modules/react-native/local-cli/cli.js start"
        },
        "dependencies": {
            "react": "15.3.1",
            "react-native": "^0.33.0"
        },
        "devDependencies": {
          "babel-plugin-transform-decorators-legacy": "^1.3.4"
        }
    }
  3. index.ios.js添加如下内容react-native

    import React, { Component } from 'react';
    
    import {
      AppRegistry,
      StyleSheet,
      Text,
      View,
    } from 'react-native';
    
    class Main extends Component {
      render() {
        return (
          <View style={{backgroundColor:'yellow', flex:1, alignItems:'center', justifyContent:'center'}}>
            <Text>Hello World</Text>
          </View>
        );
      }
    }
    
    AppRegistry.registerComponent('Helloworld', () => Main);
  4. reactnative文件夹下用终端命令: npm installbabel

2.接RN入项目

  1. 打开项目中的Podfile文件, 添加如下内容:ide

    pod 'React', :path => './reactnative/node_modules/react-native', :subspecs => [
    'Core',
    'ART',
    'RCTActionSheet',
    'RCTAdSupport',
    'RCTGeolocation',
    'RCTImage',
    'RCTNetwork',
    'RCTPushNotification',
    'RCTSettings',
    'RCTText',
    'RCTVibration',
    'RCTWebSocket',
    'RCTLinkingIOS',
    # Add any other subspecs you want to use in your project
      ]

    注意 path => 后面的路径是否正确.

  2. 在项目下执行命令: pod install

  3. RN是以view的形式在项目中使用的, 因此再项目中新建一个控制器RNMainViewControllerRNView

    RNMainViewController.m

    #import "RNMainViewController.h"
    #import "ViewController.h"
    #import "RNView.h"
    
    @interface RNMainViewController ()
    
    @end
    
    @implementation RNMainViewController
    
    - (void)viewDidLoad {
        [super viewDidLoad];
        
        self.title = @"RN模块首页";
        
        RNView * rnView = [[RNView alloc] initWithFrame:self.view.bounds];
        self.view = rnView;
    }
    
    @end

    RNView.m

    #import "RNView.h"
    #import "RCTBundleURLProvider.h"
    #import "RCTRootView.h"
    
    @implementation RNView
    
    - (instancetype)initWithFrame:(CGRect)frame {
        
        if (self = [super initWithFrame:frame]) {
    #if TARGET_IPHONE_SIMULATOR
            [[RCTBundleURLProvider sharedSettings] setJsLocation:@"localhost"];
    #else
            [[RCTBundleURLProvider sharedSettings] setDefaults];
    #endif
            NSURL *jsCodeLocation;
            jsCodeLocation = [[RCTBundleURLProvider sharedSettings] jsBundleURLForBundleRoot:@"index.ios" fallbackResource:nil];
            
            RCTRootView *rootView = [[RCTRootView alloc] initWithBundleURL:jsCodeLocation
                                                                moduleName:@"Helloworld"
                                                         initialProperties:nil
                                                             launchOptions:nil];
            
            [self addSubview:rootView];
            rootView.frame = self.bounds;
        }
        return self;
    }
    
    @end
  4. 在项目info.plist加上 App Transport Security Settings:

  5. Build Phases中添加一个Run Script, 注意其中的路径正确:

  6. reactnative文件夹下用终端命令: npm start

  7. 运行项目,不出意外就大功告成了.

最后项目目录结构:

项目代码 github

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