CODEWITHSUNDEEP
iosobjective-cuilabel
aqeel
aqeel

Reputation: 153

repeat display array of text in label forever

I'm trying to repeat display array of text in label forever in xcode , first I added a array in viewDidLoad method 

- (void)viewDidLoad
{
[super viewDidLoad];
_tweettest = @[@"tweet1",
 @"tweet2",
 @"tweet3",
 @"tweet4",
 @"tweet5"];

}

then i add NSTimer object in viewDidAppear method 

-(void) viewDidAppear:(BOOL)animated
{
 [super viewDidAppear:animated];
 NSDate *d = [NSDate dateWithTimeIntervalSinceNow: 0.1];
  Timer1 = [[NSTimer alloc] initWithFireDate: d
 interval: 1
 target:self
 selector:@selector(Timer1Tasks)
 userInfo:nil
repeats:YES];
NSRunLoop *runner = [NSRunLoop currentRunLoop];
[runner addTimer:Timer1 forMode: NSDefaultRunLoopMode];

}

then add method which will add text to label every 1 second 

-(void) Timer1Tasks
{
static int count = 0;
NSString* letter = nil;


switch(count) {

    case 0: letter = _tweettest[0];
        _tweetlabel.text = [NSString stringWithFormat:@"%@",  letter];
        break;
    case 1: letter = _tweettest[1];
        _tweetlabel.text = [NSString stringWithFormat:@"%@",  letter];
        break;
    case 2: letter = _tweettest[2];
        _tweetlabel.text = [NSString stringWithFormat:@"%@",  letter];
        break;
    case 3: letter = _tweettest[3];
        _tweetlabel.text = [NSString stringWithFormat:@"%@",  letter];
        break;
    case 4: letter = _tweettest[4];
        _tweetlabel.text = [NSString stringWithFormat:@"%@",  letter];
        break;
}
count++;


}

now every thing is ok except that there is no loop to repeat view all text again forever from beginning.

any idea will be helpful.

Upvotes: 0

Views: 406

Answers (1)

Wain
Wain

Reputation: 119031

Try this:

-(void) Timer1Tasks
{
static int count = 0;
_tweetlabel.text = _tweettest[count];
count = ((count + 1) %  _tweettest.count);
}

Then make the static int an instance variable like it should be.

Upvotes: 1

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