无法在 react-native 中获取 iOS 推送通知设备令牌

Posted 2023-02-24

【中文标题】无法在 react-native 中获取 iOS 推送通知设备令牌

【英文标题】：Can't get iOS push notification device token in react-native

【发布时间】：2018-03-22 06:23:56

【问题描述】：

我参考了this question 来获取设备令牌，以便向我的应用发送推送通知。我使用create-react-native-app 创建了我的应用程序。代码如下：

import React,  Component  from 'react';
import 
  Platform,
  StyleSheet,
  AppRegistry,
  Text,
  View,
  PushNotificationios
 from 'react-native';

type Props = ;

export default class Apptitude extends Component<Props> 
  constructor() 
    console.log('registering evt listerner in launchpad')
    PushNotificationIOS.addEventLister('register', (token) => 
      this.setState(
        deviceToken: token
      )
    );
  

  render() 
    return (
      <View>
      </View>
    );
  


PushNotificationIOS.addEventListener('registrationError', (registrationError) => 
  console.lo('was error')
  console.log(reason.message)
  console.log(reason.code)
  console.log(reason.details)
)
// yes I'm aware I've added an event listener in the constructor also. Neither of these callbacks fire
PushNotificationIOS.addEventListener('register', (token) => 
  console.log('this is the token', token);
);
console.log('requesting permissions')
PushNotificationIOS.requestPermissions();

问题是register 和registrationError 事件永远不会触发。系统提示我批准权限，下次启动应用程序时，我可以使用 checkPermissions() 并确认已授予权限。但是没有设备令牌，就不可能向设备发送推送通知。我做错了什么？

【问题讨论】：

以防万一您在register 中有addEventLister 而不是addEventListener。所以注意从这里复制粘贴！！

【参考方案1】：

另外需要注意的是，在模拟器上onRegister函数没有被触发，你必须使用真实的设备。

【参考方案2】：

以防万一有人在真实设备上遇到与我类似的问题，关键是注册事件，但在注册事件后专门调用PushNotificationIOS.requestPermissions();。

【参考方案3】：

Xcode 部分怎么样？

你应该在你的 AppDelegate 文件中导入 TCTPushNotification

#import <React/RCTPushNotificationManager.h>

并实现以下代码以在您的应用中启用notification 和register

    // Required to register for notifications
 - (void)application:(UIApplication *)application didRegisterUserNotificationSettings:(UIUserNotificationSettings *)notificationSettings
 
  [RCTPushNotificationManager didRegisterUserNotificationSettings:notificationSettings];
 
 // Required for the register event.
 - (void)application:(UIApplication *)application didRegisterForRemoteNotificationsWithDeviceToken:(NSData *)deviceToken
 
  [RCTPushNotificationManager didRegisterForRemoteNotificationsWithDeviceToken:deviceToken];
 
 // Required for the notification event. You must call the completion handler after handling the remote notification.
 - (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo
                                                        fetchCompletionHandler:(void (^)(UIBackgroundFetchResult))completionHandler
 
   [RCTPushNotificationManager didReceiveRemoteNotification:userInfo fetchCompletionHandler:completionHandler];
 
 // Required for the registrationError event.
 - (void)application:(UIApplication *)application didFailToRegisterForRemoteNotificationsWithError:(NSError *)error
 
  [RCTPushNotificationManager didFailToRegisterForRemoteNotificationsWithError:error];
 
 // Required for the localNotification event.
 - (void)application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification *)notification
 
  [RCTPushNotificationManager didReceiveLocalNotification:notification];
 

欲了解更多信息，请使用官方文档

https://facebook.github.io/react-native/docs/pushnotificationios.html

?

【讨论】：

我导入了标题，但没有导入其余部分。谢谢