How can I perform two actions depending on the current time?
For example: Display labelA if current time is between 8am-2pm. Display labelB if current time is between 2pm-6pm.
Thanks!
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2 Answers
1
Why an IBAction? Just do this:
- (void)viewDidLoad
{
[super viewDidLoad];
self.labelA.text = @"It's between 8am and 2pm";
self.labelB.text = @"It's between 2pm and 6pm";
NSDate *date = [NSDate date];
NSCalendar *gregorianCal = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];
NSDateComponents *dateComps = [gregorianCal components: (NSHourCalendarUnit | NSMinuteCalendarUnit)
fromDate: date];
if (dateComps.hour > 8 && dateComps.hour <= 14)
{
[self.view addSubview:self.labelA];
}
else if (dateComps.hour > 14 && dateComps.hour < 18)
{
[self.view addSubview:self.labelB];
}
}
michaelsnowden
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What if I want to get my text for the label from a text field? – user3771552 Jul 02 '14 at 21:09
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@user3771552 Well, that's a separate question, and why would you want to make a label's text the text of a textfield? Why not just have a textfield? If you insist, it's as simple as `labelA.text = textField.text` – michaelsnowden Jul 02 '14 at 21:11
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Also, you don't need both labelA & labelB. You can use one label object, then change it's text value depending on the time of day. Much simpler. – Jason McDermott Jul 02 '14 at 22:11
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@JasonMcDermott indeed – michaelsnowden Jul 02 '14 at 22:12
0
Use NSDateComponents to convert the current time (which you get from [NSDate date]) into components like hour, minute, etc. Then just check the hour component to see what range it's in and do the appropriate label action based on that.
