IOS/objective-C : Direct users to specific screen of app on clicking on notification

Question

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

      //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特定屏幕。 The docs说你可以检查 URL 但即便如此，我不知道如何在应用程序中为屏幕指定 NSUrl。

这似乎是一个常见的用例，我们总是点击将我们带到应用程序特定部分的通知，但找不到任何好的资源。

提前感谢您的任何建议。

Answer 1

你必须在你的 AppDelegate.m 文件中使用 didReceiveLocalNotification 或 didReceiveNotificationResponse 委托(delegate)方法，基于你实现的通知

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];
}

用于取消通知

- (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引用，请参阅https://developer.apple.com/library/content/documentation/NetworkingInternet/Conceptual/RemoteNotificationsPG/SchedulingandHandlingLocalNotifications.html