从Native以模态方式加载React Component后，如何从React Native中取消模态并返回到ios中的上一个模式

时间：2016-12-27 10:38:45

标签： ios react-native

在我当前的iOS项目中，我正在加载React Component，其中包含navigation bar navigation item'取消'来自原生'ViewController'。

当用户点击“取消”栏按钮时，它应该返回上一个viewController，即native。

对我来说它变成了阻碍者。有人可以帮助我克服这一点。

Native View ScreenShot

React Component ScreenShot

以下是我的代码

// ViewController.h 

#import "ViewController.h"

#import "ReactNativeObjCViewController.h"

@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
}

-(IBAction)moveToNext:(id)sender
{
  ReactNativeObjCViewController *rootViewController = (ReactNativeObjCViewController *)[[UIStoryboard storyboardWithName:@"Main" bundle:NULL] instantiateViewControllerWithIdentifier:@"ReactNativeVC"];

  [[self navigationController] pushViewController:rootViewController animated:YES];
}

// ReactNativeObjCViewController.h 

#import "ReactNativeObjCViewController.h"

#import "ReactNativeViewObjC.h"

@interface ReactNativeObjCViewController ()
@property (weak, nonatomic) IBOutlet ReactNativeViewObjC *reactViewWrapper;

@end

@implementation ReactNativeObjCViewController

- (void)viewDidLoad {
  [super viewDidLoad];
  self.title = @"React Wrapper (Obj C)";


  self.reactViewWrapper.data = [@{
                                  @"content": @"Welcome to React Native"
                                  } mutableCopy];

  [self.reactViewWrapper initializeReactView];


}
- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
}

// ReactNativeViewObjC.h 

#import <UIKit/UIKit.h>

@interface ReactNativeViewObjC : UIView

@property (nonatomic, strong) NSMutableDictionary *data;
- (void) initializeReactView;
@end

// ReactNativeViewObjC.m 

#import "ReactNativeViewObjC.h"

#import "RCTBundleURLProvider.h"
#import "RCTRootView.h"


@implementation ReactNativeViewObjC

-(void) initializeReactView {


  NSURL *jsCodeLocation;

  jsCodeLocation = [[RCTBundleURLProvider sharedSettings] jsBundleURLForBundleRoot:@"index.ios" fallbackResource:nil];

  RCTRootView *rootView = [[RCTRootView alloc] initWithBundleURL:jsCodeLocation moduleName:@"devdactic_tabs" initialProperties:nil
      launchOptions:nil];
  rootView.backgroundColor = [[UIColor alloc] initWithRed:1.0f green:1.0f blue:1.0f alpha:1];

  rootView.translatesAutoresizingMaskIntoConstraints = NO;
  [self addSubview:rootView];

  NSDictionary *views = @{@"rootView": rootView};
  NSArray *constraints = @[];
  constraints = [constraints arrayByAddingObjectsFromArray:[NSLayoutConstraint constraintsWithVisualFormat:@"V:|-0-[rootView]-0-|" options:0 metrics:nil views:views]];
  constraints = [constraints arrayByAddingObjectsFromArray:[NSLayoutConstraint constraintsWithVisualFormat:@"H:|-0-[rootView]-0-|" options:0 metrics:nil views:views]];

  [self addConstraints:constraints];
  [self layoutIfNeeded];
}
@end

/ * JS文件* /

// index.ios.js 

import React, { Component } from 'react';
import {
  AppRegistry,
  StyleSheet,
  Text,
  View,
  TabBarIOS,

} from 'react-native';


var Welcome = require('./Welcome');

var Featured = require('./Featured');

class devdactic_tabs extends Component {

    constructor(props) {
    super(props);
    this.state = {
      selectedTab: 'featured'
    };
  }

    render() {
    return (
      <TabBarIOS 
        unselectedTintColor="white"
                tintColor={'#c1d82f'}

        barTintColor="darkslateblue"
        selectedTab={this.state.selectedTab}>
        <TabBarIOS.Item
        title= "Featured"
          selected={this.state.selectedTab === 'featured'}
//          icon={{uri:'featured'}}
          onPress={() => {
              this.setState({
                  selectedTab: 'featured',
              });
          }}>
            <Featured/>
        </TabBarIOS.Item>
        <TabBarIOS.Item
          title="More"
          selected={this.state.selectedTab === 'more'}
//          icon={{uri:'contacts'}}
          onPress={() => {
                this.setState({
                    selectedTab: 'more',
                });
          }}>
          <Welcome/>
        </TabBarIOS.Item>
      </TabBarIOS>
    );
  }
}

const styles = StyleSheet.create({
  container: {
    flex: 1,
    justifyContent: 'center',
    alignItems: 'center',
    backgroundColor: '#F5FCFF',
  },
  welcome: {
    fontSize: 20,
    textAlign: 'center',
    margin: 10,
  },
  instructions: {
    textAlign: 'center',
    color: '#333333',
    marginBottom: 5,
  },
});

AppRegistry.registerComponent('devdactic_tabs', () => devdactic_tabs);

// Welcome.js 

'use strict';

import React, { Component } from 'react';
import {
  AppRegistry,
  StyleSheet,
  Text,
  View,
  TabBarIOS,
  NavigatorIOS    
} from 'react-native';

var WelcomeView = require('./WelcomeView');

var styles = StyleSheet.create({
  description: {
    fontSize: 20,
    textAlign: 'center',
    color: '#FFFFFF'
  },
  container: {
    flex: 1,
    justifyContent: 'center',
    alignItems: 'center',
    backgroundColor: '#123456',
  }
});

class Welcome extends Component {
  render() {
    return (
      <NavigatorIOS 
        initialRoute={{
        component:WelcomeView,
        leftButtonTitle: 'Cancel',
        title:'More',
        }}
        style={{flex:1}}
        />
    );
  }
}

module.exports = Welcome;

// WelcomeView.js 

'use strict';

import React, {Component} from 'react';

import 
{
    Image,
    StyleSheet,
    Text,
    View,
    ListView,
    TabBarIOS,
    NavigatorIOS,
    ActivityIndicatorIOS,
    TouchableHighlight

} from 'react-native';

var BookDetails = require('./BookDetails');



    var FAKE_BOOK_DATA = [
    {volumeInfo: {title: 'The Catcher in the Rye', authors: "J. D. Salinger", update: "Coming soon!", description: "Une édition de référence des Contes de ma mère l’Oye de Charles Perrault, spécialement conçue pour la lecture sur les supports numériques. « Cependant les fées commencèrent à faire leurs dons à la princesse. La plus jeune lui donna pour don qu’elle serait la plus belle personne du monde ; celle d’après, qu’elle aurait de l’esprit comme un ange ; la troisième, qu’elle aurait une grâce admirable à tout ce qu’elle ferait ; la quatrième, qu’elle danserait parfaitement bien ; la cinquième, qu’elle chanterait comme un rossignol ; la sixième, qu’elle jouerait de toutes sortes d’instruments dans la dernière perfection. Le rang de la vieille fée étant venu, elle dit, en branlant la tête encore plus de dépit que de vieillesse, que la princesse se percerait la main d’un fuseau, et qu’elle en mourrait. » (Extrait de La Belle au Bois dormant.)", imageLinks: {thumbnail: 'https://books.google.com/books/content?id=PCDengEACAAJ&printsec=frontcover&img=1&zoom=1&source=gbs_api'}}}, {volumeInfo: {title: 'The Finisher', authors: "K. L. Rotery", update: "Coming soon!", imageLinks: {thumbnail: 'https://i.imgur.com/UePbdph.jpg'}}}, {volumeInfo: {title: 'The Catcher in the Rye', authors: "J. D. Salinger", update: "Coming soon!", imageLinks: {thumbnail: 'https://resizing.flixster.com/m7G-weBZPYfnoqSiF59LIPPYOuM=/44x81/dkpu1ddg7pbsk.cloudfront.net/movie/10/97/47/10974721_ori.jpg'}}}, {volumeInfo: {title: 'The Finisher', authors: "K. L. Rotery", update: "Coming soon!", imageLinks: {thumbnail: 'https://resizing.flixster.com/Q8IBqX3b-nhEAEYokJ_aH6jO6lE=/54x78/dkpu1ddg7pbsk.cloudfront.net/movie/10/94/13/10941373_ori.jpg'}}}, {volumeInfo: {title: 'The Catcher in the Rye', authors: "J. D. Salinger", update: "Coming soon!", imageLinks: {thumbnail: 'https://resizing.flixster.com/e3AKmyWuh1Wr4qMAM_vQ0vtN9AA=/54x77/dkpu1ddg7pbsk.cloudfront.net/movie/10/94/13/10941368_ori.jpg'}}}, {volumeInfo: {title: 'The Finisher', authors: "K. L. Rotery", update: "Coming soon!", imageLinks: {thumbnail: 'https://resizing.flixster.com/1FxtmlxCqRb0EPdHFrFDGpZ45CE=/54x75/dkpu1ddg7pbsk.cloudfront.net/movie/31/16/311623_ori.jpg'}}}, {volumeInfo: {title: 'The Catcher in the Rye', authors: "J. D. Salinger", update: "Coming soon!", imageLinks: {thumbnail: 'https://resizing.flixster.com/yFgYWViboAAdHG99EoF3VULEblc=/54x74/dkpu1ddg7pbsk.cloudfront.net/movie/10/97/67/10976773_ori.jpg'}}}, {volumeInfo: {title: 'The Finisher', authors: "K. L. Rotery", update: "Coming soon!", imageLinks: {thumbnail: 'https://resizing.flixster.com/d7ZWFBXpcaqXbOJ-W57_b8B2TR0=/54x80/dkpu1ddg7pbsk.cloudfront.net/movie/10/92/85/10928519_ori.jpg'}}}, {volumeInfo: {title: 'The Catcher in the Rye', authors: "J. D. Salinger", update: "Coming soon!", imageLinks: {thumbnail: 'https://resizing.flixster.com/d7ZWFBXpcaqXbOJ-W57_b8B2TR0=/54x80/dkpu1ddg7pbsk.cloudfront.net/movie/10/92/85/10928519_ori.jpg'}}}, {volumeInfo: {title: 'The Finisher', authors: "K. L. Rotery", update: "Coming soon!", imageLinks: {thumbnail: 'https://resizing.flixster.com/Yttvb_8gXph4S7iJCiLQFbZ2s7Q=/54x74/dkpu1ddg7pbsk.cloudfront.net/movie/11/00/22/11002233_ori.jpg'}}}
];

    var styles = StyleSheet.create({

});


var styles = StyleSheet.create({
    container: {
        flex: 1,
        flexDirection: 'row',
        justifyContent: 'center',
        alignItems: 'center',
        backgroundColor: '#F5FCFF',
        padding: 10
    },
    thumbnail: {
        width: 53,
        height: 81,
        marginRight: 10
    },
    rightContainer: {
        flex: 1
    },
    title: {
        fontSize: 20,
        marginBottom: 8
    },
    author: {
        color: '#656565'
    },
    separator: {
        height: 1,
        backgroundColor: '#dddddd'
    },
    listView: {
        backgroundColor: '#F5FCFF'
    },
    loading: {
        flex: 1,
        alignItems: 'center',
        justifyContent: 'center'
    }
});

class WelcomeView extends Component{

    constructor(props){

        super(props);
        this.state = {
            dataSource: new ListView.DataSource({
               rowHasChanged: (row1, row2) => row1 !== row2
           })
        };
    }


    componentDidMount() {

        var books = FAKE_BOOK_DATA;
    this.setState({
        dataSource: this.state.dataSource.cloneWithRows(books)
    });

    }

    render(){
        return(
        <ListView 
                dataSource={this.state.dataSource}
                renderRow={this.renderBook.bind(this)}
                style={styles.listView}

            ></ListView>
        );
    }


    renderBook(book){
        return(

        <TouchableHighlight onPress= {() => this.showDetails(book)}
            underlayColor='#dddddd'>    
        <View>    
            <View style={styles.container}>

               <Image source={{uri: book.volumeInfo.imageLinks.thumbnail}}
                style={styles.thumbnail}/>
               <View style={styles.rightContainer}>
                            <Text style={styles.title}>{book.volumeInfo.title}</Text>
                            <Text style={styles.author}>{book.volumeInfo.authors}</Text>
                            <Text style={styles.author}>{book.volumeInfo.publisher}</Text>
                            <Text style={styles.title}>{book.volumeInfo.publishedDate}</Text>

                        </View>
               </View>

            <View style={styles.separator} />

            </View>
            </TouchableHighlight>
        );
    }

   showDetails(book){

       this.props.navigator.push({
            title: book.volumeInfo.title,
            component: BookDetails,
            passProps: {book}
        });
   }

}

module.exports = WelcomeView;

// Featured.js 

'use strict';

import React, { Component } from 'react';
import {
  AppRegistry,
  StyleSheet,
  Text,
  View,
  TabBarIOS,
  NavigatorIOS,
  NativeModules

} from 'react-native';



var FeaturedList = require('./FeaturedList');

let DismissViewControllerManager = NativeModules.DismissViewControllerManager;

var styles = StyleSheet.create({
  description: {
    fontSize: 20,
    textAlign: 'center',
    color: '#FFFFFF'
  },
  container: {
    flex: 1,
    justifyContent: 'center',
    alignItems: 'center',
    backgroundColor: 'red',
  }
});

class Featured extends Component {
  render() {
    return (
      <NavigatorIOS
        initialRoute={{
          component: FeaturedList,
          title: 'Featured',
          leftButtonTitle: 'Cancel',
        onLeftButtonPress: () => this._handleNavigationRequest(),
        }}
        style={{flex: 1}}
      />
    );
  }


    _handleNavigationRequest() {
    DismissViewControllerManager.goBack();
  }
}

module.exports = Featured;

// FeaturedListView 

'use strict';

import React, { Component } from 'react';
var REQUEST_URL = 'https://www.googleapis.com/books/v1/volumes?q=subject:fiction';

var BookDetails = require('./BookDetails');

import {
    Image,
    StyleSheet,
    Text,
    View,
    ListView,
    TabBarIOS,
    NavigatorIOS,
    ActivityIndicatorIOS,
    TouchableHighlight
    } from 'react-native';



var styles = StyleSheet.create({
    container: {
        flex: 1,
        flexDirection: 'row',
        justifyContent: 'center',
        alignItems: 'center',
        backgroundColor: '#F5FCFF',
        padding: 10
    },
    thumbnail: {
        width: 53,
        height: 81,
        marginRight: 10
    },
    rightContainer: {
        flex: 1
    },
    title: {
        fontSize: 20,
        marginBottom: 8
    },
    author: {
        color: '#656565'
    },
    separator: {
        height: 1,
        backgroundColor: '#dddddd'
    },
    listView: {
        backgroundColor: '#F5FCFF'
    },
    loading: {
        flex: 1,
        alignItems: 'center',
        justifyContent: 'center'
    }
});

class MoreView extends Component{


    constructor(props) {
       super(props);
       this.state = {
           dataSource: new ListView.DataSource({
               rowHasChanged: (row1, row2) => row1 !== row2
           })
       };
   }

    componentDidMount() {


        this.fetchData();
    }


    fetchData() {

        fetch(REQUEST_URL)
            .then((response) => response.json())
            .then((responseData) => {
                this.setState({
                    dataSource: this.state.dataSource.cloneWithRows(responseData.items),
                    isLoading: false
                });
            })
            .done();
    }


    render(){

         if (this.state.isLoading) {
            return this.renderLoadingView();
        }

        return (
            <ListView
                dataSource={this.state.dataSource}
                renderRow={this.renderBook.bind(this)}
                style={styles.listView}
                />
        );


    }

    renderLoadingView() {
        return (
            <View style={styles.loading}>
                <ActivityIndicatorIOS
                    size='large'/>
                <Text>
                    Loading books...
                </Text>
            </View>
        );
    }

    renderBook(book) {
       return (
            <TouchableHighlight onPress ={() => this.showBookDetails(book)} underlayColor='#dddddd'>
                <View>
                    <View style={styles.container}>
                        <Image
                            source={{uri: book.volumeInfo.imageLinks.thumbnail}}
                            style={styles.thumbnail} />
                        <View style={styles.rightContainer}>
                            <Text style={styles.title}>{book.volumeInfo.title}</Text>
                            <Text style={styles.author}>{book.volumeInfo.authors}</Text>
                            <Text style={styles.author}>{book.volumeInfo.publisher}</Text>
                            <Text style={styles.title}>{book.volumeInfo.publishedDate}</Text>

                        </View>
                    </View>
                    <View style={styles.separator} />
                </View>
            </TouchableHighlight>
       );
   }


   showBookDetails(book){

      this.props.navigator.push({
            title: book.volumeInfo.title,
            component: BookDetails,
            passProps: {book}
        });
   }

}


module.exports = MoreView;

// BookDetails.js 

'use strict';

import React, {Component} from 'react';

import {
    StyleSheet,
    Text,
    View,
    Image,
    ScrollView
    } from 'react-native';

var styles = StyleSheet.create({
    container: {
        marginTop: 75,
        alignItems: 'center'
    },
    image: {
        width: 107,
        height: 165,
        padding: 10
    },
    description: {
        padding: 10,
        fontSize: 15,
        color: '#656565'
    },
    scrollContainer: {
        marginTop: 20,
        marginBottom: 20,
        padding: 10
    },
});

class BookDetails extends Component {
    render() {
        var book = this.props.book;
        var imageURI = (typeof book.volumeInfo.imageLinks !==   'undefined') ? book.volumeInfo.imageLinks.thumbnail : '';
        var description = (typeof book.volumeInfo.description !== 'undefined') ? book.volumeInfo.description : '';
        return (
            <View style={styles.container}>
                <Image style={styles.image} source={{uri: imageURI}} />
            <ScrollView style={styles.scrollContainer}>
                <Text style={styles.description}>{description}</Text>
            </ScrollView>
            </View>
        );
    }
}

module.exports = BookDetails;

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