ios - iOS 应用程序上的多个通知

Question

在我的应用程序中，我需要发送第一个通知(应用程序启动时)和用户按下按钮时的第二个通知。为了发送第一个通知，我实现了以下代码:

- (void)viewDidAppear:(BOOL)animated {

    UILocalNotification *localNotification = [[UILocalNotification alloc]init];
    localNotification.fireDate = [NSDate dateWithTimeIntervalSinceNow:5];
    localNotification.alertBody = @"My notification text";
    localNotification.alertAction = @"text";
    localNotification.soundName = UILocalNotificationDefaultSoundName;
    localNotification.timeZone = [NSTimeZone localTimeZone];
    localNotification.userInfo = @{@"ID": @"Geo"};
    localNotification.applicationIconBadgeNumber = [[UIApplication sharedApplication] applicationIconBadgeNumber] + 1;

    [[UIApplication sharedApplication] scheduleLocalNotification:localNotification];
}

对于第二个通知，我实现了以下代码:

- (IBAction)buttonDone:(UIButton *)sender {
    [self.buttonDone setEnabled:NO];
    UILocalNotification *localNotification = [[UILocalNotification alloc]init];
    localNotification.fireDate = [NSDate dateWithTimeIntervalSinceNow:5];
    localNotification.alertBody = @"My notification text";
    localNotification.alertAction = @"text";
    localNotification.soundName = UILocalNotificationDefaultSoundName;
    localNotification.timeZone = [NSTimeZone localTimeZone];
    localNotification.userInfo = @{@"ID": @"Pay"};
    localNotification.applicationIconBadgeNumber = [[UIApplication sharedApplication] applicationIconBadgeNumber] + 1;

    [[UIApplication sharedApplication] scheduleLocalNotification:localNotification];
}

现在，当我在模拟器上运行该应用程序时，我遇到了以下问题:该应用程序已启动并向我发送了(5 秒后)第一个通知，但我没有在状态栏上看到横幅，当我去通知中心我看不到我收到的通知，但是应用程序打开了在按下通知后应该打开的 View Controller 。当我按下第二个通知的按钮时，一切正常。在我的 AppDelegate.m 中，我插入了以下代码:

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    // Override point for customization after application launch.
    [[UINavigationBar appearance] setTitleTextAttributes:@{NSForegroundColorAttributeName: [UIColor whiteColor]}];
    [[UIApplication sharedApplication] setStatusBarStyle:UIStatusBarStyleLightContent];
    [application registerUserNotificationSettings:[UIUserNotificationSettings settingsForTypes:UIUserNotificationTypeAlert | UIUserNotificationTypeBadge | UIUserNotificationTypeSound categories:nil]];

    UILocalNotification *localNotification = [launchOptions objectForKey:UIApplicationLaunchOptionsLocalNotificationKey];
    if (localNotification) {
        application.applicationIconBadgeNumber = 0;
    }
    application.applicationIconBadgeNumber = 0;

    return YES;
}

我插入了以下方法来响应通知:

- (void)application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification *)notification {
    UIApplicationState state = [application applicationState];

     NSString *ident = [notification.userInfo objectForKey:@"ID"];

    if (state == UIApplicationStateActive) {
        [[UIApplication sharedApplication] cancelAllLocalNotifications];
        if ([ident isEqualToString:@"Geo"]) {
            ViewController *notificationVC = [self.window.rootViewController.storyboard instantiateViewControllerWithIdentifier:@"Local"];
            [self.window setRootViewController:notificationVC];
        } else if ([ident isEqualToString:@"Pay"]) {
            ViewController *notificationVC = [self.window.rootViewController.storyboard instantiateViewControllerWithIdentifier:@"Notification"];
            [self.window setRootViewController:notificationVC];
        }
    }

    [[UIApplication sharedApplication] cancelAllLocalNotifications];

    if ([ident isEqualToString:@"Geo"]) {
        ViewController *notificationVC = [self.window.rootViewController.storyboard instantiateViewControllerWithIdentifier:@"Local"];
        [self.window setRootViewController:notificationVC];
    } else if ([ident isEqualToString:@"Pay"]) {
        ViewController *notificationVC = [self.window.rootViewController.storyboard instantiateViewControllerWithIdentifier:@"Notification"];
        [self.window setRootViewController:notificationVC];
    }

    application.applicationIconBadgeNumber = 0;

}

我将 Storyboard ID 设置为我在代码中输入的名称。我的代码有什么问题？为什么它不显示通知横幅并且不在通知中心显示通知？我希望你能帮助我解决这个问题。

Answer 1

详情

如果你在前台，你必须用你自己的代码处理消息。如果您在后台，iOS SDK 会通过显示通知横幅为您管理它。

解决方案

您可以自行处理 appDelegate 下 didReceiveLocalNotification 上的通知。

如果您有兴趣在此处实现类似于 iOS SDK 通知横幅的东西，您可以在 GitHub 上找到它 AGPushNote :