React-Native iOS – 如何通过按下按钮从React-Native视图导航到非React-Native视图（本机iOS视图控制器）？

RN doco和其他示例显示了如何从本机iOS视图控制器启动React-Native视图，但不是相反。 有人可以解释我怎么做到这一点？

Answer 1

我能够弄清楚这一点。 在我的例子中，我使用我自己的Swift本机视图控制器的Obj-C基础项目（这是RN默认值）。 我的解决方案就在这里，以防其他人出现：

简单地说，答案是使用RTCBridge模块允许RN javascript调用本机iOS方法。

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以下是组件的概述，然后是实现：

1. AppDelegate.h / .m – 初始化初始RN视图的RN javascript索引文件，还设置了将根视图控制器交换到本机视图控制器的方法（此方法将从RTCBridge模块调用。
2. MyViewController.swift – 具有标准实现的普通UIViewController。
3. MyProject-Bridging-Header.h – 提供Obj-C < - > Swift通信
4. ChangeViewBridge.h / .m – 这提供了绑定，允许您从RN javascript调用本机iOS方法
5. index.ios.js – 初始化自定义RCTBridge模块并调用绑定方法，按下按钮切换到本机视图。

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AppDelegate.h

#import  @interface AppDelegate : UIResponder  { NSDictionary *options; UIViewController *viewController; } @property (nonatomic, strong) UIWindow *window; - (void) setInitialViewController; - (void) goToRegisterView; // called from the RCTBridge module @end 

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AppDelegate.m

 #import "AppDelegate.h" #import  #import  #import "FidoTestProject-Swift.h" // Xcode generated import to reference MyViewController.swift from Obj-C @implementation AppDelegate - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { options = launchOptions; [self setInitialViewController]; return YES; } - (void) setInitialViewController { NSURL *jsCodeLocation; jsCodeLocation = [NSURL URLWithString:@"http://192.168.208.152:8081/index.ios.bundle?platform=ios&dev=true"]; RCTRootView *rootView = [[RCTRootView alloc] initWithBundleURL:jsCodeLocation moduleName:@"FidoTestProject" initialProperties:nil launchOptions:options]; self.window = [[UIWindow alloc] initWithFrame:[UIScreen mainScreen].bounds]; UIViewController *rootViewController = [UIViewController new]; rootViewController.view = rootView; self.window.rootViewController = rootViewController; viewController = rootViewController; [self.window makeKeyAndVisible]; } // this method will be called from the RCTBridge - (void) goToNativeView { NSLog(@"RN binding - Native View - MyViewController.swift - Load From "main" storyboard); UIViewController *vc = [UIStoryboard storyboardWithName:@"main" bundle:nil].instantiateInitialViewController; self.window.rootViewController = vc; } @end 

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MyViewController.swift

 class RegisterViewController: UIViewController { override func viewDidLoad() { super.viewDidLoad() print("MyViewController loaded...") // standard view controller will load from RN } } 

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MyProject的桥接，Header.h

 @import Foundation; @import UIKit; @import CoreLocation; @import AVFoundation; #import "React/RCTBridge.h" #import "React/RCTBridgeModule.h" #import "React/RCTBundleURLProvider.h" #import "React/RCTRootView.h" #import "AppDelegate.h" 

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ChangeViewBridge.h

 #import  @interface ChangeViewBridge : NSObject  - (void) changeToNativeView; @end 

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ChangeViewBridge.m

 #import "RegisterBridge.h" #import "FidoTestProject-Swift.h" #import "AppDelegate.h" @implementation ChangeViewBridge // reference "ChangeViewBridge" module in index.ios.js RCT_EXPORT_MODULE(ChangeViewBridge); RCT_EXPORT_METHOD(changeToNativeView) { NSLog(@"RN binding - Native View - Loading MyViewController.swift"); AppDelegate *appDelegate = (AppDelegate *)[UIApplication sharedApplication].delegate; [appDelegate goToNativeView]; } @end 

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index.ios.js

 /** * Sample React Native App * https://github.com/facebook/react-native * @flow */ 'use strict'; import React, { Component } from 'react'; import { AppRegistry, StyleSheet, Alert, Text, View, NativeModules, TouchableHighlight } from 'react-native'; export default class FidoTestProject extends Component { constructor(props) { super(props) this.done = false; } _changeView() { this.done = true; this.render(); NativeModules.ChangeViewBridge.changeToNativeView(); } render() { if (!this.done) { return (   this._changeView()}>  Press to Change to Native View    ); } else { return (); } } }; const styles = StyleSheet.create({ container: { flex: 1, justifyContent: 'center', alignItems: 'center', backgroundColor: '#F5FCFF', } }); AppRegistry.registerComponent('FidoTestProject', () => FidoTestProject);