当Apple的官方iOS消息应用程序处于打开状态且位于前台时,来自其他联系人的新消息会触发库存本机iOS通知警报横幅。见下图。
这可以在App Store的第三方应用中使用吗?当您的应用打开且处于前台时,您的应用的本地和/或推送通知?
在测试我的应用时,会收到通知但未显示iOS提醒用户界面。
但在Apple的官方消息应用中可以看到 这种行为
。
Local and Remote Notification Programming Guide说:
当操作系统发送本地通知或远程通知且目标应用未在前台运行时,它可以通过提醒向用户显示通知,图标徽章编号或声音。
如果应用程序在传递通知时在前台中运行,则应用代理会收到本地或远程通知。
是的,我们可以在前台收到通知数据。但我认为无法显示本机iOS通知提醒UI 。
-(void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo
{
// I know we still receive the notification `userInfo` payload in the foreground.
// This question is about displaying the stock iOS notification alert UI.
// Yes, one *could* use a 3rd party toast alert framework.
[self use3rdPartyToastAlertFrameworkFromGithub]
}
然后消息是否使用私有API在前台显示警报?
出于这个问题的目的,请不要在github等上建议任何第三方“toast”弹出警报。我只对使用库存,原生iOS 本地或推送通知会在应用程序处于打开状态且位于前台时警告UI 。
答案 0 :(得分:116)
iOS 10 添加了UNUserNotificationCenterDelegate
协议,用于在您的应用位于前台时处理通知。
UNUserNotificationCenterDelegate
协议定义了接收通知和处理操作的方法。当您的应用程序位于前台时,到达的通知将传递到您的委托对象,而不是使用系统界面自动显示。
夫特:
optional func userNotificationCenter(_ center: UNUserNotificationCenter,
willPresent notification: UNNotification,
withCompletionHandler completionHandler: (UNNotificationPresentationOptions) -> Void)
目标-C:
- (void)userNotificationCenter:(UNUserNotificationCenter *)center
willPresentNotification:(UNNotification *)notification
withCompletionHandler:(void (^)(UNNotificationPresentationOptions options))completionHandler;
UNNotificationPresentationOptions标记允许您指定UNNotificationPresentationOptionAlert
以使用通知提供的文本显示提醒。
这是关键,因为它允许您在应用程序处于打开状态且在前台时显示警告,这是iOS 10的新功能。
func userNotificationCenter(_ center: UNUserNotificationCenter,
willPresent notification: UNNotification,
withCompletionHandler completionHandler: @escaping (UNNotificationPresentationOptions) -> Void)
{
completionHandler(.alert)
}
答案 1 :(得分:81)
要在应用程序位于前台时显示横幅消息,请使用以下方法。
iOS 10,Swift 3 :
func userNotificationCenter(_ center: UNUserNotificationCenter, willPresent notification: UNNotification, withCompletionHandler completionHandler: @escaping (UNNotificationPresentationOptions) -> Void) {
completionHandler([.alert, .badge, .sound])
}
答案 2 :(得分:14)
修改强>
iOS 10中现在可以进行前景警报! Please see this answer
适用于iOS 9及以下版本:
当您的应用处于打开状态且位于前台时,似乎无法显示iOS通知提醒。 Messages.app必须使用私有API。
当应用程序已经位于最前端时,系统不会显示任何警报,标记应用程序的图标或播放任何声音。 - UILocalNotification docs
仍会调用UIApplicationDelegate
方法 ,允许您的应用响应本地或远程通知:
application:didReceiveLocalNotification:
application:didReceiveRemoteNotification:
但是,库存原生iOS通知提醒横幅用户界面不会显示,就像在Apple的Messages.app中一样,它必须使用私有API。
您可以做的最好的事情是滚动自己的警报横幅或使用现有框架:
-(void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo
{
// Use a 3rd party toast alert framework to display a banner
[self toastAlertFromGithub]
}
我已在此处为此行为打开了一个雷达:rdar://22313177
答案 3 :(得分:14)
要在应用程序打开时显示通知,我们需要手动处理它。所以我在下面做的是收到通知后处理通知。
在AppDelegate.m
中添加以下所有内容如果这是一个好的解决方案,请告诉我。为我工作得很好,但我不确定这是否正确。
- (void)application:(UIApplication *)applicationdidReceiveRemoteNotification:(NSDictionary *)userInfo fetchCompletionHandler:(void (^)(UIBackgroundFetchResult))completionHandler {
NSString *notifMessage = [[userInfo objectForKey:@"aps"] objectForKey:@"alert"];
//Define notifView as UIView in the header file
[_notifView removeFromSuperview]; //If already existing
_notifView = [[UIView alloc] initWithFrame:CGRectMake(0, -70, self.window.frame.size.width, 80)];
[_notifView setBackgroundColor:[UIColor blackColor]];
UIImageView *imageView = [[UIImageView alloc] initWithFrame:CGRectMake(10,15,30,30)];
imageView.image = [UIImage imageNamed:@"AppLogo.png"];
UILabel *myLabel = [[UILabel alloc] initWithFrame:CGRectMake(60, 15, self.window.frame.size.width - 100 , 30)];
myLabel.font = [UIFont fontWithName:@"Helvetica" size:10.0];
myLabel.text = notifMessage;
[myLabel setTextColor:[UIColor whiteColor]];
[myLabel setNumberOfLines:0];
[_notifView setAlpha:0.95];
//The Icon
[_notifView addSubview:imageView];
//The Text
[_notifView addSubview:myLabel];
//The View
[self.window addSubview:_notifView];
UITapGestureRecognizer *tapToDismissNotif = [[UITapGestureRecognizer alloc] initWithTarget:self
action:@selector(dismissNotifFromScreen)];
tapToDismissNotif.numberOfTapsRequired = 1;
tapToDismissNotif.numberOfTouchesRequired = 1;
[_notifView addGestureRecognizer:tapToDismissNotif];
[UIView animateWithDuration:1.0 delay:.1 usingSpringWithDamping:0.5 initialSpringVelocity:0.1 options:UIViewAnimationOptionCurveEaseIn animations:^{
[_notifView setFrame:CGRectMake(0, 0, self.window.frame.size.width, 60)];
} completion:^(BOOL finished) {
}];
//Remove from top view after 5 seconds
[self performSelector:@selector(dismissNotifFromScreen) withObject:nil afterDelay:5.0];
return;
}
//If the user touches the view or to remove from view after 5 seconds
- (void)dismissNotifFromScreen{
[UIView animateWithDuration:1.0 delay:.1 usingSpringWithDamping:0.5 initialSpringVelocity:0.1 options:UIViewAnimationOptionCurveEaseIn animations:^{
[_notifView setFrame:CGRectMake(0, -70, self.window.frame.size.width, 60)];
} completion:^(BOOL finished) {
}];
}
答案 4 :(得分:10)
以下是在应用程序处于前台或开放阶段时接收推送通知的代码,iOS 10& Swift 2.3
@available(iOS 10.0, *)
func userNotificationCenter(center: UNUserNotificationCenter, willPresentNotification notification: UNNotification, withCompletionHandler completionHandler: (UNNotificationPresentationOptions) -> Void)
{
completionHandler([UNNotificationPresentationOptions.Alert,UNNotificationPresentationOptions.Sound,UNNotificationPresentationOptions.Badge])
}
如果您需要访问userInfo的通知使用代码:notification.request.content.userInfo
只有在向有效负载添加属性userNotificationCenter(_:willPresent:withCompletionHandler:)
时才会调用方法content-available:1
。最终的有效载荷应该是这样的:
{
"aps":{
"alert":"Testing.. (7)",
"badge":1,"sound":"default"
},
"content-available":1
}
答案 5 :(得分:9)
UNMutableNotificationContent *content = [[UNMutableNotificationContent alloc] init];
content.body = body;
content.userInfo = userInfo;
content.sound = [UNNotificationSound defaultSound];
[content setValue:@(YES) forKeyPath:@"shouldAlwaysAlertWhileAppIsForeground"];
UNNotificationRequest *request = [UNNotificationRequest requestWithIdentifier:@"Notif" content:content trigger:nil];
[[UNUserNotificationCenter currentNotificationCenter] addNotificationRequest:request withCompletionHandler:^(NSError * _Nullable error) {
DLog(@"Error:%@", error);
}];
当应用程序处于 iOS 10
的活动状态时,我可以显示推送通知来自服务器的推送通知应无声。
从服务器接收远程通知时,您发送本地通知并设置 keyPath的值:shouldAlwaysAlertWhileAppIsForeground = True
答案 6 :(得分:5)
您可以自行处理通知并显示自定义提醒。 Viber,Whatsapp和BisPhone等应用都使用这种方法。
第三方自定义提醒的一个示例是CRToast。
尝试在应用程序位于前台时安排本地通知,您将看到没有显示iOS动态警报:
if (application.applicationState == UIApplicationStateActive ) {
UILocalNotification *localNotification = [[UILocalNotification alloc] init];
localNotification.userInfo = userInfo;
localNotification.soundName = UILocalNotificationDefaultSoundName;
localNotification.alertBody = message;
localNotification.fireDate = [NSDate date];
[[UIApplication sharedApplication] scheduleLocalNotification:localNotification];
}
答案 7 :(得分:4)
Swift 3版本
当应用程序位于前台时显示警告。
if #available(iOS 10.0, *)
{
// need to setup the global notification delegate somewhere when your app starts
//
UNUserNotificationCenter.current().delegate = applicationDelegate
// to show a message
//
let content = UNMutableNotificationContent()
content.body = "MESSAGE"
let request = UNNotificationRequest(identifier: "fred", content: content, trigger: nil)
UNUserNotificationCenter.current().add(request)
{
error in // called when message has been sent
debugPrint("Error: \(error)")
}
}
ApplicationDelegate的UNUserNotificationCenterDelegate
@available(iOS 10.0, *)
public func userNotificationCenter(_ center : UNUserNotificationCenter, willPresent notification : UNNotification, withCompletionHandler completionHandler : @escaping (UNNotificationPresentationOptions) -> Void)
{
completionHandler([.alert]) // only-always show the alert
}
答案 8 :(得分:1)
如果您的部署目标> = iOS10,请使用UNUserNotification,如下所示 -
func userNotificationCenter(_ center: UNUserNotificationCenter,
willPresent notification: UNNotification,
withCompletionHandler completionHandler: @escaping (UNNotificationPresentationOptions) -> Void)
{
// Change this to your preferred presentation option
completionHandler([.alert, .sound])
}
答案 9 :(得分:0)
要显示本地通知,这是最佳选择。需要更少的代码来怀疑“BRYXBanner”https://cocoapods.org/pods/BRYXBanner
let banner = Banner(title: "title", subtitle: "subtitle", image: UIImage(named: "addContact"), backgroundColor: UIColor(red:137.0/255.0, green:172.0/255.0, blue:2.0/255.0, alpha:1.000))
banner.dismissesOnTap = true
banner.show(duration: 1.0)