如何在iOS中設置鬧鐘？

Question

我知道這個問題已經問了很多次StackOverflow但我無法在我的應用程序中設置鬧鐘，因爲我對iOS非常陌生？我下面這個教程設置鬧鐘：

Setting a reminder using UILocalNotification in iOS.

但是，它似乎並不爲我工作。

我需要每天設置鬧鐘讓我們說每天5.00 PM。我不能使用日期選擇器來選擇時間。

Answer 1

1. 首先您xib，（或者代碼）設定的日期選擇器模式：時間（默認爲日期&時間）

2. 系統假定firedate是當前日期和時間用戶選擇的時間。這不是問題，因爲您設置了重複間隔，因此它可以工作。我已經測試過它。

   UILocalNotification *localNotif = [[UILocalNotification alloc] init]; 
   [localNotif setFireDate:datePicker.date]; 
   [localNotif setRepeatInterval:NSDayCalendarUnit]; 
   [[UIApplication sharedApplication] scheduleLocalNotification:localNotif]; 
   

PS：這將是使用NSDateComponents類秒設置爲0，以便設置報警，在您需要的分鐘的第一秒響個好主意。您可以檢查：你張貼在如何做到這一點

Local notifications in iOS.

教程。

Answer 2

您可能需要更改日期選擇器的樣式，以允許更改除日期以外的時間。

Answer 3

+ (void)addLocalNotification:(int)year:(int)month:(int)day:(int)hours:(int)minutes:(int)seconds:(NSString*)alertSoundName:(NSString*)alertBody:(NSString*)actionButtonTitle:(NSString*)notificationID 

調用此方法與參數，並使用此

+ (void)addLocalNotification:(int)year:(int)month:(int)day:(int)hours:(int)minutes:(int)seconds:(NSString*)alertSoundName:(NSString*)alertBody:(NSString*)actionButtonTitle:(NSString*)notificationID { 
NSCalendar *calendar = [NSCalendar autoupdatingCurrentCalendar]; 

//set the notification date/time 
NSDateComponents *dateComps = [[NSDateComponents alloc] init]; 
[dateComps setDay:day]; 

[dateComps setMonth:month]; 

[dateComps setYear:year]; 
[dateComps setHour:hours]; 

[dateComps setMinute:minutes]; 
[dateComps setSecond:seconds]; 

NSDate *notificationDate = [calendar dateFromComponents:dateComps]; 
[dateComps release]; 

UILocalNotification *localNotif = [[UILocalNotification alloc] init]; 
if (localNotif == nil) 
    return; 
localNotif.fireDate = notificationDate; 
localNotif.timeZone = [NSTimeZone defaultTimeZone]; 

// Set notification message 
localNotif.alertBody = alertBody; 
// Title for the action button 
localNotif.alertAction = actionButtonTitle; 

localNotif.soundName = (alertSoundName == nil) ? UILocalNotificationDefaultSoundName : alertSoundName; 

//use custom sound name or default one - look here to find out more: http://developer.apple.com/library/ios/#documentation/NetworkingInternet/Conceptual/RemoteNotificationsPG/IPhoneOSClientImp/IPhoneOSClientImp.html%23//apple_ref/doc/uid/TP40008194-CH103-SW13 

localNotif.applicationIconBadgeNumber += 1; //increases the icon badge number 

// Custom data - we're using them to identify the notification. comes in handy, in case we want to delete a specific one later 
NSDictionary *infoDict = [NSDictionary dictionaryWithObject:notificationID forKey:notificationID]; 
localNotif.userInfo = infoDict; 

// Schedule the notification 
[[UIApplication sharedApplication] scheduleLocalNotification:localNotif]; 
[localNotif release]; 
} 

Answer 4

你可以試試這個

UILocalNotification *todolistLocalNotification=[[UILocalNotification alloc]init]; 
[todolistLocalNotification setFireDate:[lodatepicker date]]; 
[todolistLocalNotification setAlertAction:@"Note list"]; 
[todolistLocalNotification setTimeZone:[NSTimeZone defaultTimeZone]]; 
[todolistLocalNotification setAlertBody:text_todolist]; 
[todolistLocalNotification setHasAction:YES];