HI , i have made simple application with 5 view controllers with some functionality .. what i want to do now is add a time at the main screen . and it should b running till i quit from application .. i will move to other view controllers also but that timer would b running .. how i will have this functionality ?? ...
Hi Everyone: I am wondering if there is some way that I can create a timer that countdown from a given time. For example, say I want this timer to last an hour. There will be a NSTextField that will show the time remaining (ex. 25 minutes), and will auto update every minute to the new value. And then, when an hour is finally passed, ...
I have setup two timers in my application which both repeats every a few seconds. Everything works fine except when is time to invalidate the timers. When the phone is locked, I want to invalidate those timers and then recreate them when the phone is unlocked. Im using the notifications to realize when to invalidate/create the timers. ...
Hey all, How do I use an NSTimer. Can anyone give me step by step instructions? Thanks, Kevin ...
I have seen a similar answer for my question but I would just make it clear. My Application needs sends an event to be fired even when the application is not active. I think it cant be done using a NSTimer. My question is that do I need to run the timer in some other runloop other than the main run loop to deliver the runloop, so that it...
To repeat a method call (or message send, I guess the appropriate term is) every x seconds, is it better to use an NSTimer (NSTimer's scheduledTimerWithTimeInterval:target:selector:userInfo:repeats:) or to have the method recursively call itself at the end (using performSelector:withObject:afterDelay)? The latter doesn't use an object, b...
I have a little project that is a timer that counts down 'til midnight, and I was wondering If I should leave it as it is, calculating the time until midnight each second (inside NSTimer method that gets called every 1 second): NSDate *now = [[NSDate alloc] init]; NSDateComponents *dateComponents = [[self gregorian] components: (NS...
I've heard it mentioned elsewhere, one cannot programmattically hook into the phone call area of an iPhone using the current SDK. I'm looking to learn iPhone development and Obj C, with the end goal of creating a call timer app that runs in the background and alerts the user when a call has gone on too long. Is it even possible to hook ...
Or maybe I just have to use an NSTimer and guess? ...
i have a uilabel and a uislider on a view. i want to set label's time using slider.range of slider is 00:00:00 to 03:00:00. means 3 hours.and intervel on slider is 0.5 minutes.also how to show.i want the timer runs even if application is closed. ...
-(void)setX:(int)x andY:(int)y andObject:(Sprite*)obj { [obj setPosition:CGPointMake(x,y)]; } Now, I want to call above method, using following timer. [NSTimer scheduledTimerWithTimeInterval:1 target:self selector:@selector() userInfo:nil repeats:NO]; What to set Here? How to Pass arguments? (as per my knowledge - selector spec...
Hey, is it possible to determine whether my UIView is visible to the user or not? My View is added as subview several times into a Tab Bar Controller. Each instance of this view has a NSTimer that updates the view. However I don't want to update a view witch is not visible to the user. Is this possible? Thanks ...
I am trying to run the code below but it keeps locking up my simulator after the "Tick" is written to the console. It never outputs "Tock" so my guess is that it has to do with the line "NSTimeInterval elapsedTime = [startTime timeIntervalSinceNow];" The IBactions are activated by buttons. timer and startTime are defined in the .h as NST...
I need to play frame based animations. I tried the UIImageView with animationImages but it doesn't give me any control over my animation. I can't pause it, I can't mask it, I can't know the current frame etc. So I subclassed UIView and created something I called AnimationView which takes the array of images and does the animation using ...
Hello everyone. I'm programming an iPhone app and this is my question. I have a NSTimer with an interval of 3 seconds that fires to decrease a value. In the other hand, when I do an action that increase that value I want to restart the timer to count from 3 seconds. For example, if I increase the value and timer will fires on 1 second,...
Hi, I'm still new to programming so excuse me if this is silly. I'm programming a simple game and require multiple timers to send different messages at different intervals, so when creating the game, the following is called: [self gameTimerValidate]; [self scoreTimerValidate]; - (void) gameTimerValidate { gameTimer = [NSTimer scheduled...
I have a label on which I am showing countdown timer. Now if I close my app the timer will be off and the label's text also. I know that we can save the label's text value. But how do we show the correct countdown when the app starts again. Suppose I close at 00:05:35 after 3 minutes when app is launched again the label should show 00...
I'd like help on some strategies to sequence some animations. I subclassed UIImageView so that I could write some custom animation actions on an image. I implemented a few methods to be used as actions that I could call on my image example: -(void)rotateAnim; //rotates the image by a few degrees using a CGAffine Transform -(void)num...
i am showing digits on uilabel and using timer to update text something like counting down.. i am using this font to show time like lcd clock [CountdownLabel setFont:[UIFont fontWithName:@"DBLCDTempBlack" size:48.0]]; i am facing two problems in this. using this font the dots(:) between the digits is smaller than the digits. the dig...
I have a something like this: NSTimer* timer = [NSTimer scheduledTimerWithTimeInterval:1.0 target:self selector:@selector(updateCountdown) userInfo:nil ...