IOS / Objective-C:单击通知时将用户定向到应用程序的特定屏幕

Question

在appDelegate的默认- (void)applicationDidBecomeActive:(UIApplication *)application {方法中，Apple包含注释：

//This may also be a good place to direct someone
to a certain screen if the app was in background but they just clicked on a notification

我正在尝试为本地通知执行此操作，但无法弄清楚如何将用户定向到某个屏幕。 文档说您可以检查 URL，但即便如此，我不知道如何为应用程序中的屏幕指定 NSUrl。

这似乎是一个常见的用例，我们一直点击通知，将我们带到应用程序的特定部分，但没有找到任何好的资源。

提前感谢您的任何建议。

Answer 1

您必须根据您实现的通知在AppDelegate.m文件中使用didReceiveLocalNotification或didReceiveNotificationResponse委托方法

对于 UILocalNotification：

-(void)application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification *)notification
{
// Your redirection code goes here like shown below
MyViewController *controller = [[UIStoryboard storyboardWithName:@"Main" bundle:nil] instantiateViewControllerWithIdentifier:@"ViewController"];
[self.window.rootViewController.navigationController pushViewController:controller animated:YES];
}

为了统一

- (void)userNotificationCenter:(UNUserNotificationCenter *)center
didReceiveNotificationResponse:(UNNotificationResponse *)response
withCompletionHandler:(void (^)(void))completionHandler {
// Your redirection code goes here like shown below
MyViewController *controller = [[UIStoryboard storyboardWithName:@"Main" bundle:nil] instantiateViewControllerWithIdentifier:@"ViewController"];
[self.window.rootViewController.navigationController pushViewController:controller animated:YES];
}

有关UNNotification或处理本地通知的更多参考，请参阅 https://developer.apple.com/library/content/documentation/NetworkingInternet/Conceptual/RemoteNotificationsPG/SchedulingandHandlingLocalNotifications.html