本地通知repeatInterval

Question

我的应用程序是关于显示学生时间表的，我想添加一个本地通知repeatInterval。
我打算为此使用切换按钮。

我试过这段代码，但它现在不起作用：

    -(IBAction)theSwitch:(id)sender{
if (switcher.on) {
    NSCalendar *gregCalendar = [[NSCalendar alloc]initWithCalendarIdentifier:NSGregorianCalendar];
    NSDateComponents *dateComponent = [gregCalendar components:NSYearCalendarUnit  | NSWeekCalendarUnit fromDate:[NSDate date]];

    [dateComponent setWeekday:3]; // For tuesday
    [dateComponent setHour:13];
    [dateComponent setMinute:41];

    NSDate *fireDate = [gregCalendar dateFromComponents:dateComponent];

    UILocalNotification *notification = [[UILocalNotification alloc]init];
    [notification setAlertBody:@"ALARM!"];
    [notification setFireDate:fireDate];
    notification.repeatInterval = NSWeekCalendarUnit;
    [notification setTimeZone:[NSTimeZone defaultTimeZone]];
    [[UIApplication sharedApplication] scheduleLocalNotification:notification];
}
else  {UIApplication *app=[UIApplication sharedApplication];
[app scheduleLocalNotification:nil];
}
    }

因此，我需要在这方面提供更多指导，并就如何实现这一目标提出一些建议。

Answer 1

如果您无法获得本地通知，请查看下面的代码。

在 AppDelegate.m 文件中添加代码

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
// Handle launching from a notification
UILocalNotification *localNotification =
[launchOptions objectForKey:UIApplicationLaunchOptionsLocalNotificationKey];
if (localNotification) {
    NSLog(@"Recieved Notification %@", localNotification);
}
return YES;
}

添加处理本地通知的方法

- (void)application:(UIApplication *)app didReceiveLocalNotification:(UILocalNotification *)notification {
// Handle the notificaton when the app is running
NSLog(@"Recieved Notification %@", notification);
}