如何为 Firebase 添加通知服务扩展？

Question

我正在尝试按照此处的指南进行操作：https : //firebase.google.com/docs/cloud-messaging/ios/send-image

我去新建>目标>通知服务扩展（将此新目标嵌入到原始目标中）并粘贴NotificationService.m：

@interface NotificationService ()

@property (nonatomic, strong) void (^contentHandler)(UNNotificationContent *contentToDeliver);
@property (nonatomic, strong) UNMutableNotificationContent *bestAttemptContent;

@end

@implementation NotificationService

- (void)didReceiveNotificationRequest:(UNNotificationRequest *)request withContentHandler:(void (^)(UNNotificationContent * _Nonnull))contentHandler {
    self.contentHandler = contentHandler;
    self.bestAttemptContent = [request.content mutableCopy];

    // Modify the notification content here...
    self.bestAttemptContent.title = [NSString stringWithFormat:@"%@ [modified]", self.bestAttemptContent.title];

    // Call FIRMessaging extension helper API.
    [[FIRMessaging extensionHelper] populateNotificationContent:self.bestAttemptContent
                                             withContentHandler:contentHandler];

    self.contentHandler(self.bestAttemptContent);
}

- (void)serviceExtensionTimeWillExpire {
    // Called just before the extension will be terminated by the system.
    // Use this as an opportunity to deliver your "best attempt" at modified content, otherwise the original push payload will be used.
    self.contentHandler(self.bestAttemptContent);
}

@end

我现在得到Use of undeclared identifier 'FIRMessaging' in NotificationService.m.

在NotificationService.m我试图导入类似我原来的目标的AppDelegate.m地方FIRMessaging可用并且没有问题的工作：

#import "NotificationService.h"
#import <Firebase.h>
#import "RNFirebaseNotifications.h"
#import "RNFirebaseMessaging.h"
...

然后我得到'Firebase.h' file not found. 我很困惑，因为它似乎在原始目标中工作，并且此通知服务扩展嵌入在该目标中。我试图搞乱Header Search Paths并Framework Search Paths没有多少运气。我究竟做错了什么？

Answer 1

您只需要在现有的 podfile 中添加以下文本。

target 'NotificationImage' do
   pod 'Firebase/Messaging'
end

然后只有您才能看到要包含在项目中的文件。