Take the 2-minute tour ×  First post and first iPhone app in the
making here, so please excuse the any n00b mistakes. I'm having
trouble activating the alarm. I have a Datepicker and a button
as the crux of the code. Here's the .h file  @interface Alarm :
UIViewController  @property (retain, nonatomic) NSDate *alarm;
@property (retain, nonatomic) IBOutlet UIButton *sleepButton;
@property (retain, nonatomic) NSTimer *timer; @property (retain,
nonatomic) IBOutlet UIDatePicker *timePicker;  -
(IBAction)startAlarm:(id)sender; - (void)checkAlarm;   And here
is the .m file.  - (IBAction)startAlarm:(id)sender
self.alarm = [self.timePicker date];  self.timer = [NSTimer
scheduledTimerWithTimeInterval:(1.0) target:self
selector:@selector(checkAlarm) userInfo:nil repeats:YES];  -
(void)checkAlarm     // alarm is reached     if ([NSDate date]
== self.alarm)          // rest of code goes here  I also have
no idea how to make sound and make it repeat itself, so if I can
get some guidance on how to do that, that would b