blocks|key|159827|text|如果应用程序在前台运行，iOS将不会显示通知横幅/警报。这是设计好的。你必须编写一些代码来处理你的应用程序在前台收到通知的情况。您应该以最合适的方式显示通知(例如，向UITabBar图标添加徽章编号、模拟通知中心横幅等)。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|159828|entityMap^0|2B|8|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|K|8|@]|D|@]|E|$]]]|G|$]]

If the application is running in the foreground, iOS won't show a notification banner/alert. That's by design. You have to write some code to deal with the situation of your app receiving a notification while it is in the foreground. You should show the notification in the most appropriate way (for example, adding a badge number to a <code>UITabBar</code> icon, simulating a Notification Center banner, etc.).

blocks|key|377832|text|正如@Danial+Martine所说，iOS不会显示通知横幅/警报。这是设计好的。但是，如果真的必须这样做，那么只有一种方法。我也通过同样的方式做到了这一点。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|377833|1.从Parse+FrameWork下载解析框架|offset|length|377834|2.导入#import+<Parse/Parse.h>|style|CODE|377835|3.将以下代码添加到didReceiveRemoteNotification方法中|377836|+-+(void)application:(UIApplication+*)application
didReceiveRemoteNotification:(NSDictionary+*)userInfo
{
++++[PFPush+handlePush:userInfo];
}|code-block|syntax|javascript|377837|PFPush将负责如何处理远程通知。如果App在前台，则会显示警报，否则会在顶部显示通知。|377838|entityMap|0|LINK|mutability|MUTABLE|url|https://www.parse.com/^0|0|3|F|0|0|4|N|0|0|0|0^^$0|@$1|2|3|4|5|6|7|10|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|11|8|@]|9|@$D|12|E|13|1|14]]|A|$]]|$1|F|3|G|5|6|7|15|8|@$D|16|E|17|H|I]]|9|@]|A|$]]|$1|J|3|K|5|6|7|18|8|@]|9|@]|A|$]]|$1|L|3|M|5|N|7|19|8|@]|9|@]|A|$O|P]]|$1|Q|3|R|5|6|7|1A|8|@]|9|@]|A|$]]|$1|S|3|-4|5|6|7|1B|8|@]|9|@]|A|$]]]|T|$U|$5|V|W|X|A|$Y|Z]]]]

As @Danial Martine said iOS won't show a notification banner/alert. That's by design. But if really have to do it then there is one way . I have also achieve this by same.

1.Download the parse frame work from <a href="https://www.parse.com" rel="nofollow">Parse FrameWork</a>

2.Import <code>#import &lt;Parse/Parse.h&gt;</code>

3.Add following code to your didReceiveRemoteNotification Method

<pre><code> - (void)application:(UIApplication *)application
didReceiveRemoteNotification:(NSDictionary *)userInfo
{
 [PFPush handlePush:userInfo];
}
</code></pre>

PFPush will take care how to handle the remote notification . If App is in foreground this shows the alert otherwise it shows the notification at the top.

blocks|key|377890|text|下面的代码将为您工作：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|377891|-+(void)application:(UIApplication+*)application+didReceiveRemoteNotification:(NSDictionary+*)userInfo++{
++++application.applicationIconBadgeNumber+=+0;+++++++++++++
++++//self.textView.text+=+[userInfo+description];
++++//+We+can+determine+whether+an+application+is+launched+as+a+result+of+the+user+tapping+the+action
++++//+button+or+whether+the+notification+was+delivered+to+the+already-running+application+by+examining
++++//+the+application+state.

++++if+(application.applicationState+==+UIApplicationStateActive)+{++++++++++++++++
++++++++//+Nothing+to+do+if+applicationState+is+Inactive,+the+iOS+already+displayed+an+alert+view.++++++++++++++++
++++++++UIAlertView+*alertView+=+[[UIAlertView+alloc]+initWithTitle:@"Did+receive+a+Remote+Notification"+message:[NSString+stringWithFormat:@"Your+App+name+received+this+notification+while+it+was+running:\n%25@",[[userInfo+objectForKey:@"aps"]+objectForKey:@"alert"]]delegate:self+cancelButtonTitle:@"OK"+otherButtonTitles:nil];
++++++++[alertView+show];++++++++++
++++}++++
}|code-block|syntax|javascript|377892|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Below code will be work for you :

<pre><code>- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo {
 application.applicationIconBadgeNumber = 0; 
 //self.textView.text = [userInfo description];
 // We can determine whether an application is launched as a result of the user tapping the action
 // button or whether the notification was delivered to the already-running application by examining
 // the application state.

 if (application.applicationState == UIApplicationStateActive) { 
 // Nothing to do if applicationState is Inactive, the iOS already displayed an alert view. 
 UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"Did receive a Remote Notification" message:[NSString stringWithFormat:@"Your App name received this notification while it was running:\n%@",[[userInfo objectForKey:@"aps"] objectForKey:@"alert"]]delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil];
 [alertView show]; 
 } 
}
</code></pre>

blocks|key|159995|text|您可以创建自己的通知来模拟横幅警报。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|159996|一种方法是创建一个自定义的uiview，它看起来像横幅，可以对触摸进行动画和响应。考虑到这一点，您可以创建具有更多功能的更好的横幅。|159997|或者，您可以寻找一个api来为您完成此任务，并将它们作为podfile添加到您的项目中。|159998|下面是我用过的几个例子：|159999|https://github.com/terryworona/TWMessageBarManager|offset|length|160000|https://github.com/toursprung/TSMessages|160001|entityMap|0|LINK|mutability|MUTABLE|url|1^0|0|0|0|0|0|1E|0|0|0|14|1|0^^$0|@$1|2|3|4|5|6|7|V|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|W|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|X|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|Y|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|Z|8|@]|9|@$J|10|K|11|1|12]]|A|$]]|$1|L|3|M|5|6|7|13|8|@]|9|@$J|14|K|15|1|16]]|A|$]]|$1|N|3|-4|5|6|7|17|8|@]|9|@]|A|$]]]|O|$P|$5|Q|R|S|A|$T|I]]|U|$5|Q|R|S|A|$T|M]]]]

You can create your own notification that mimics the banner alert. 

One way is to create a custom uiview that looks like the banner and can animate and respond to touches. With this in mind you can create even better banners with even more functionality.

Or you can look for an api that does it for you and add them as podfiles to your project.

Here are a couple that I have used:

<a href="https://github.com/terryworona/TWMessageBarManager" rel="nofollow">https://github.com/terryworona/TWMessageBarManager</a>

<a href="https://github.com/toursprung/TSMessages" rel="nofollow">https://github.com/toursprung/TSMessages</a>

blocks|key|378006|text|如果您的应用程序处于前台状态，则意味着您当前正在使用相同的应用程序。因此，通常不需要在顶部显示通知。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|378007|但是，如果您想在这种情况下显示通知，则必须创建自定义警报视图或自定义视图，如Toast或其他视图，以向用户显示您已收到通知。|378008|如果你的应用程序中有这样的功能，你也可以在顶部显示一个徽章。|378009|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|H|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|I|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|J|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|G|$]]

If your application is in foreground state, it means you are currently using the same app. So there is no need to show notification on the top generally.

But still if you want to show notification in that case you have to create your custom Alert View or Custom View like Toast or something else to show to the user that you have got a notification.

You can also show a badge on the top if you have such kind of feature in your app.

blocks|key|160070|text|这是当app处于活动状态(前台或打开)时接收推送通知的代码。UNUserNotificationCenter+documentation|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|160071|@available(iOS+10.0,+*)
func+userNotificationCenter(center:+UNUserNotificationCenter,+willPresentNotification+notification:+UNNotification,+withCompletionHandler+completionHandler:+(UNNotificationPresentationOptions)+->+Void)
{
+++++completionHandler([UNNotificationPresentationOptions.Alert,UNNotificationPresentationOptions.Sound,UNNotificationPresentationOptions.Badge])
}|code-block|syntax|javascript|160072|如果需要访问通知的userInfo，请使用代码：notification.request.content.userInfo|style|CODE|160073|entityMap|0|LINK|mutability|MUTABLE|url|https://developer.apple.com/reference/usernotifications/unusernotificationcenter^0|U|12|0|0|0|O|11|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@$A|V|B|W|1|X]]|C|$]]|$1|D|3|E|5|F|7|Y|8|@]|9|@]|C|$G|H]]|$1|I|3|J|5|6|7|Z|8|@$A|10|B|11|K|L]]|9|@]|C|$]]|$1|M|3|-4|5|6|7|12|8|@]|9|@]|C|$]]]|N|$O|$5|P|Q|R|C|$S|T]]]]

Here is the code to receive Push Notification when app in active state (foreground or open). <a href="https://developer.apple.com/reference/usernotifications/unusernotificationcenter" rel="nofollow noreferrer">UNUserNotificationCenter documentation</a>

<pre><code>@available(iOS 10.0, *)
func userNotificationCenter(center: UNUserNotificationCenter, willPresentNotification notification: UNNotification, withCompletionHandler completionHandler: (UNNotificationPresentationOptions) -&gt; Void)
{
 completionHandler([UNNotificationPresentationOptions.Alert,UNNotificationPresentationOptions.Sound,UNNotificationPresentationOptions.Badge])
}
</code></pre>

If you need to access userInfo of notification use code: <code>notification.request.content.userInfo</code>

blocks|key|378040|text|将completionHandler行添加到委托方法为我解决了同样的问题：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|378041|//Called+when+a+notification+is+delivered+to+a+foreground+app.
@available(iOS+10.0,+*)
func+userNotificationCenter(_+center:+UNUserNotificationCenter,+willPresent+notification:+UNNotification,+withCompletionHandler+completionHandler:+@escaping+(UNNotificationPresentationOptions)+->+Void)+{

completionHandler([.alert,+.badge,+.sound])
}+|code-block|syntax|javascript|378042|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Adding that completionHandler line to delegate method solved same problem for me:

<pre><code>//Called when a notification is delivered to a foreground app.
@available(iOS 10.0, *)
func userNotificationCenter(_ center: UNUserNotificationCenter, willPresent notification: UNNotification, withCompletionHandler completionHandler: @escaping (UNNotificationPresentationOptions) -&gt; Void) {

completionHandler([.alert, .badge, .sound])
} 
</code></pre>

blocks|key|160098|text|在你应用委托中使用下面的代码|type|unstyled|depth|inlineStyleRanges|entityRanges|data|160099|import+UIKit
import+UserNotifications
@UIApplicationMain
class+AppDelegate:+UIResponder,+UIApplicationDelegate,+UNUserNotificationCenterDelegate+{
+var+currentToken:+String?
+var+window:+UIWindow?
+func+application(_+application:+UIApplication,+didFinishLaunchingWithOptions+launchOptions:+[UIApplicationLaunchOptionsKey:+Any]?)+->+Bool+{
++++++++//+Override+point+for+customization+after+application+launch.
++++++++application.registerForRemoteNotifications()
++++++++let+center+=+UNUserNotificationCenter.current()
++++++++center.requestAuthorization(options:+[.alert,+.sound,+.badge])+{+(granted,+error)+in

++++++++++++//+Enable+or+disable+features+based+on+authorization.
++++++++++++if+granted+==+true
++++++++++++{
++++++++++++++++print("Allow")
++++++++++++++++UIApplication.shared.registerForRemoteNotifications()
++++++++++++}
++++++++++++else
++++++++++++{
++++++++++++++++print("Don't+Allow")
++++++++++++}
++++++++}
++++++++UNUserNotificationCenter.current().delegate+=+self

++++++++return+true
++++}
func+application(_+application:+UIApplication,+didRegisterForRemoteNotificationsWithDeviceToken+deviceToken:+Data){
++++++++let+tokenParts+=+deviceToken.map+{+data+->+String+in
++++++++++++return+String(format:+"%2502.2hhx",+data)
++++++++}
++++++++let+token+=+tokenParts.joined()
++++++++currentToken+=+token++//get+device+token+to+delegate+variable

++++}
+public+class+var+shared:+AppDelegate+{
++++++++return+UIApplication.shared.delegate+as!+AppDelegate
++++}
+func+userNotificationCenter(_+center:+UNUserNotificationCenter,+willPresent+notification:+UNNotification,+withCompletionHandler+completionHandler:+@escaping+(UNNotificationPresentationOptions)+->+Void)+{
+++++++++completionHandler([.alert,+.badge,+.sound])
++++}
}|code-block|syntax|javascript|160100|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

In your app delegate use bellow code 

<pre><code>import UIKit
import UserNotifications
@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate, UNUserNotificationCenterDelegate {
 var currentToken: String?
 var window: UIWindow?
 func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -&gt; Bool {
 // Override point for customization after application launch.
 application.registerForRemoteNotifications()
 let center = UNUserNotificationCenter.current()
 center.requestAuthorization(options: [.alert, .sound, .badge]) { (granted, error) in

 // Enable or disable features based on authorization.
 if granted == true
 {
 print("Allow")
 UIApplication.shared.registerForRemoteNotifications()
 }
 else
 {
 print("Don't Allow")
 }
 }
 UNUserNotificationCenter.current().delegate = self

 return true
 }
func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data){
 let tokenParts = deviceToken.map { data -&gt; String in
 return String(format: "%02.2hhx", data)
 }
 let token = tokenParts.joined()
 currentToken = token //get device token to delegate variable

 }
 public class var shared: AppDelegate {
 return UIApplication.shared.delegate as! AppDelegate
 }
 func userNotificationCenter(_ center: UNUserNotificationCenter, willPresent notification: UNNotification, withCompletionHandler completionHandler: @escaping (UNNotificationPresentationOptions) -&gt; Void) {
 completionHandler([.alert, .badge, .sound])
 }
}
</code></pre>

blocks|key|378082|text|如上所述，您应该使用UserNotification.framework来实现这一点。但出于我的目的，我不得不在应用程序中显示它，并且想要有iOS+11风格，所以我创建了一个小的助手视图，也许对某些人有用。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|378083|GitHub+iOS+11+Push+Notification+View。|378084|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/hydro0/iOS-11-Push-Notifications-InApp-View^0|A|Q|1Y|6|0|0|10|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@$9|Q|A|R|B|C]|$9|S|A|T|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|U|8|@]|D|@$9|V|A|W|1|X]]|E|$]]|$1|H|3|-4|5|6|7|Y|8|@]|D|@]|E|$]]]|I|$J|$5|K|L|M|E|$N|O]]]]

As mentioned above, you should use <code>UserNotification.framework</code> to achieve this. But for my purposes I have to show it in app anyway and wanted to have <code>iOS 11</code> style, so I've created a small helper view, maybe would be useful for someone.

<a href="https://github.com/hydro0/iOS-11-Push-Notifications-InApp-View" rel="nofollow noreferrer">GitHub iOS 11 Push Notification View</a>.

I am using push notification service in my app. When app is in background I am able to see notification on notification screen(screen shown when we swipe down from top of iOS device). But if application is in foreground the delegate method 

<pre><code>- (void)application:(UIApplication*)application didReceiveRemoteNotification:(NSDictionary*)userInfo
</code></pre>

is getting called but notification is not displayed in notification screen. 

I want to show notification on notification screen independent of whether app is in background or foreground. I am tired by searching for a solution. Any help is greatly appreciated.

Get push notification while App in foreground iOS

推送通知服务

我正在我的应用中使用推送通知服务。当应用程序在后台时，我可以在通知屏幕上看到通知(当我们从iOS设备顶部向下滑动时显示的屏幕)。但如果应用程序在前台，则委托方法- (void)application:(UIApplication*)application didReceiveRemoteNotification:(NS...

问App在前台iOS时获取推送通知
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