在特定的日期和時間通知

Question

所以我需要你的幫助：我必須在特定的日期和時間設置代碼通知。請幫我解決我的代碼。

UILocalNotification* n1 = [[UILocalNotification alloc] init]; 
n1.fireDate = [NSDate dateWithTimeIntervalSinceNow: 6]; 
n1.alertBody = @"one"; 
UILocalNotification* n2 = [[UILocalNotification alloc] init]; 
n2.fireDate = [NSDate dateWithTimeIntervalSinceNow: 15]; 
n2.alertBody = @"two"; 
[[UIApplication sharedApplication] scheduleLocalNotification: n1]; 
[[UIApplication sharedApplication] scheduleLocalNotification: n2]; 

Answer 1

看來你只是不知道如何創建一個NSDate到一個特定的時間。使用NSDateFormatter將字符串轉換爲日期。

NSDateFormatter *df = [[NSDateFormatter alloc] init]; 
[df setDateFormat:@"yyyy-MM-dd HH:mm"]; 
NSDate *myDate = [df dateFromString:@"2014-04-05 23:30"]; 

UILocalNotification* n1 = [[UILocalNotification alloc] init]; 
n1.fireDate = myDate;