iOS 中的 React Native OneSign 后台通知问题

Question

我按照本指南在我的反应本机应用程序中设置 OneSignal 后台通知：https ://documentation.onesignal.com/docs/rn-android-native-module-setup-for-notification-service-extension#ios-notification-服务扩展模块

当我通过 Xcode 将应用程序直接安装到我的设备时，后台通知按预期工作。但是当我存档构建并从 TestFlight 安装它时，后台通知不起作用。除非emitNotificationEvent我添加的事件没有被触发，即使收到了推送通知。

当我在 Xcode 中跟踪存档构建的问题（使用设备控制台）时，_instance注意到NotificationExtensionModule.m. 有人遇到过类似的问题或知道可能是什么原因吗？

笔记

• Xcode 版本：13.4
• 在两种情况下接收推送通知（来自试飞或直接安装）
• 要将新版本放入 TestFlight，用于增加具有相同版本号的内部版本号。
• 尝试清理构建文件夹，重新安装 Pod，仍然没有任何效果

添加代码片段以进一步了解我的问题：

AppDelegate.h

#import <Foundation/Foundation.h>
#import <React/RCTBridgeDelegate.h>
#import <UIKit/UIKit.h>
#import <UserNotifications/UserNotifications.h>


@interface AppDelegate : UIResponder <UIApplicationDelegate,RCTBridgeDelegate,UNUserNotificationCenterDelegate>

@property (nonatomic, strong) UIWindow *window;

@end

AppDelegate.m

- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo
fetchCompletionHandler:(void (^)(UIBackgroundFetchResult))completionHandler
{
  //access NotificationServiceExtensionModule emitNotificationEvent method
  [NotificationServiceExtensionModule.sharedInstance emitNotificationEvent:userInfo ];
  completionHandler(UIBackgroundFetchResultNoData);
}

通知服务扩展模块.h

#import <foundation/Foundation.h>

// NotificationServiceExtensionModule.h
#import <React/RCTBridgeModule.h>
#import <React/RCTEventEmitter.h>

@interface NotificationServiceExtensionModule : RCTEventEmitter <RCTBridgeModule>

+ (NotificationServiceExtensionModule*) sharedInstance;
- (void)emitNotificationEvent:(NSDictionary *)userInfo;


@end

通知服务扩展模块.m

#import <Foundation/Foundation.h>

// NotificationServiceExtensionModule.m
#import "NotificationServiceExtensionModule.h"

@implementation NotificationServiceExtensionModule

static NotificationServiceExtensionModule* _instance = nil;


+(NotificationServiceExtensionModule*) sharedInstance {
//    @synchronized( _instance ) {
//        if( !_instance ) {
//            _instance = [[NotificationServiceExtensionModule alloc] init];
//        }
//    }
    
    return _instance; // this returns null when installed from TestFlight. 
}

// To export a module named NotificationServiceExtensionModule
RCT_EXPORT_MODULE();

- (NSArray<NSString *> *)supportedEvents
{
  NSLog(@"Supported EVENTS__________________________");
  _instance = self;
  return @[@"NotificationEvent"];
}

- (void)emitNotificationEvent:(NSDictionary *)userInfo
{
  NSString *eventName = userInfo[@"custom"][@"a"];
  [self sendEventWithName:@"NotificationEvent" body:@{@"notificationPayload": eventName}];
}

@end

Answer 1

您可以使用以下代码来检查应用程序是否在后台或前台运行：

- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo
fetchCompletionHandler:(void (^)(UIBackgroundFetchResult))completionHandler
{
  //access NotificationServiceExtensionModule emitNotificationEvent method
  [NotificationServiceExtensionModule.sharedInstance emitNotificationEvent:userInfo ];
  if (application.applicationState == UIApplicationStateActive) {
    // App was in the foreground when the notification was received
  } else {
    // App was in the background when the notification was received
  }
  completionHandler(UIBackgroundFetchResultNoData);
}