最近在使用Firebase做React Native的推送功能,分別在Android和iOS端集成了Firebase的CloudMessaging,其中有一個需求就是當用戶收到Notification並點選時,能判斷出App是啟動(前臺,或者按Home隱藏)還是未啟動狀態,從而做不同的響應.
具體怎麼做區分呢? 請看程式碼:

@interface AppDelegate () <UNUserNotificationCenterDelegate>
@end

@implementation AppDelegate
- (BOOL)application:(UIApplication
 
 *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
  if (launchOptions) {
    NSDictionary *userInfo = [launchOptions valueForKey:UIApplicationLaunchOptionsRemoteNotificationKey];
    if ([userInfo isKindOfClass:[NSDictionary class]]) {
      //位置 ①
      //程式碼走到這裡,說明使用者點選Notification時,app是未啟動狀態 
 

     }
  }

  return YES;
}

- (void)userNotificationCenter:(UNUserNotificationCenter *)center
didReceiveNotificationResponse:(UNNotificationResponse *)response
         withCompletionHandler:(void(^)(void))completionHandler {
  completionHandler();
  NSDictionary * userInfo = response.notification
 
.request.content.userInfo;
  NSLog(@"userInfo %@", userInfo);
  if ([userInfo isKindOfClass:[NSDictionary class]]) {
    //位置 ②
    //Notification點選後,不論App啟動或未啟動都會走到這裡
    //但是會晚於didFinishLaunchingWithOptions執行
    //所以程式碼只執行了位置②,代表使用者點選Notification時,程式是啟動狀態
  }
}
@end