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iphoneiosuilabel
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Reputation: 45

How to make a label show on a specific time in xcode

I'm making an iOS application for iPhone, and I want to have two labels that is hidden on a specific time and shown on a specific time. Like Label1 is shown between 6am and 6pm and Label2 is shown between 6pm and 6am Any ideas?

Upvotes: 0

Views: 1336

Answers (2)

Mike
Mike

Reputation: 737

NSDate *today = [NSDate date];
NSCalendar *gregorian = [[[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar] autorelease];
NSDateComponents *components = [gregorian components:(NSHourCalendarUnit | NSMinuteCalendarUnit | NSSecondCalendarUnit) fromDate:today];

NSInteger hour = [components hour];
NSInteger minute = [components minute];
NSInteger second = [components second];

Now you have the hour, just add your normal logic. if want to be change the formate do this...

NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
 [formatter setDateFormat:@"hh:mm a"];
      // another is   [formatter setDateFormat:@"hh:mm:ss"]; 
 NSLog(@"Current Date: %@", [formatter stringFromDate:today]);

Upvotes: 1

Lithu T.V
Lithu T.V

Reputation: 20021

[NSDate date]; gives you the current date .Use date fromatter to get the fromat you need and use setText: method to set the text.Fire it in a timer and set the text

NSDateFormatter *dateFormatter=[[NSDateFormatter alloc]init];
[dateFormatter setDateFormat:@"EEEE MMMM d, YYYY"];
NSLog(@"%@",[dateFormatter stringFromDate:[NSDate date]]);
[yourLabel setText:[dateFormatter stringFromDate:[NSDate date]]];

EDIT

full code,Try this

-(void)showtext
{
    NSDateFormatter *dateFormatter=[[NSDateFormatter alloc]init];
    [dateFormatter setDateFormat:@"hh:mm:ss"];
    NSLog(@"%@",[dateFormatter stringFromDate:[NSDate date]]);
    if(  [self compareTimeIsbetween6])
    {
        [self.date1Label setHidden:NO];
        [self.date2Label setHidden:YES];
      [self.date1Label setText:[dateFormatter stringFromDate:[NSDate date]]];

    }
    else
    {
        [self.date1Label setHidden:YES];
        [self.date2Label setHidden:NO];
        [self.date2Label setText:[dateFormatter stringFromDate:[NSDate date]]];

    }
}

-(BOOL)compareTimeIsbetween6
{
    NSDateComponents *components = [[NSCalendar currentCalendar] components:NSHourCalendarUnit | NSMinuteCalendarUnit | NSSecondCalendarUnit fromDate:[NSDate date]];
    NSInteger currentHour = [components hour];
    NSInteger currentMinute = [components minute];
    NSInteger currentSecond = [components second];

    if (currentHour < 6 || (currentHour > 18 || (currentHour == 18 && (currentMinute > 0 || currentSecond > 0)))) {
        return YES;
    }
    else
    {
        return NO;
    }
}

- (void)viewDidLoad
{
    [super viewDidLoad];

    [NSTimer scheduledTimerWithTimeInterval:1.0 target:self selector:@selector(showtext) userInfo:nil repeats:YES]; // Do any additional setup after loading the view, typically from a nib.
}

.h

@interface ViewController : UIViewController
@property (weak, nonatomic) IBOutlet UILabel *date1Label;
@property (weak, nonatomic) IBOutlet UILabel *date2Label;

Upvotes: 1

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