在后台时不调用 UILocalNotification

Question

我尝试在应用程序处于后台并处于活动状态时触发 UILocalNotification。我使用以下内容：

在 App Delegate 中，我想 "catch" 通过这个通知回调（它没有被调用）：

- (void)application:(UIApplication*)application didReceiveRemoteNotification:(NSDictionary*)userInfo{

    NSLog(@"recieve-old-notif-here");

}

- (void)application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification *)notification{


    NSLog(@"recieve-old-notif");
}

这是我声明本地通知的方式：

NSString *strToShow = [NSString stringWithFormat:@"Время вставать"];


UILocalNotification *notification = [[UILocalNotification alloc] init];
notification.fireDate = [NSDate dateWithTimeIntervalSinceNow:15];

notification.alertBody = strToShow;
notification.timeZone = [NSTimeZone defaultTimeZone];
notification.soundName = UILocalNotificationDefaultSoundName;
[[UIApplication sharedApplication] scheduleLocalNotification:notification];

请注意，我已经通过 iOS 10 条通知完成了该任务，但我想在旧版本设备上支持此功能。

所以，我的委托方法应该调用但它们没有，为什么？

Answer 1

将以下代码添加到委托中的 didFinishLaunchingWithOptions 方法中：

ifdef __IPHONE_8_0

//Right, that is the point
UIUserNotificationSettings *settings = [UIUserNotificationSettings settingsForTypes:(UIUserNotificationTypeAlert | UIUserNotificationTypeBadge | UIUserNotificationTypeSound) categories:nil];
[[UIApplication sharedApplication] registerUserNotificationSettings:settings];

其他

//register to receive notifications
UIRemoteNotificationType myTypes = UIRemoteNotificationTypeBadge | UIRemoteNotificationTypeAlert | UIRemoteNotificationTypeSound;
[[UIApplication sharedApplication] registerForRemoteNotificationTypes:myTypes];

结束

及以下委托方法；

#ifdef __IPHONE_8_0
- (void)application:(UIApplication *)application didRegisterUserNotificationSettings:(UIUserNotificationSettings *)notificationSettings
{
    //register to receive notifications
    [application registerForRemoteNotifications];
}

- (void)application:(UIApplication *)application handleActionWithIdentifier:(NSString *)identifier forRemoteNotification:(NSDictionary *)userInfo completionHandler:(void(^)())completionHandler
{
    //handle the actions
    if ([identifier isEqualToString:@"declineAction"]){
    }
    else if ([identifier isEqualToString:@"answerAction"]){
    }
}
#endif

在后台时不调用 UILocalNotification

UILocalNotification not called when is in background

objective-c

ios

uilocalnotification

ifdef __IPHONE_8_0

其他

结束