Hi, I have two NSTimers in my iPhone app. DecreaseTimer works fine, but TimerCountSeconds crashes when I call [timerCountSeconds isValid] or [timerCountSeconds invalidate]. They are used like this: -(id)initialize { //Gets called, when the app launches and when a UIButton is pressed if ([timerCountSeconds isValid]) { [timerCountSecon...
I am trying to run a method from my app delegate, that saves an object in other class as well as invalidates a timer. I have it set up so that when my app exits, it runs the method in my class and saves and stops the timer. In app delegate: - (void)applicationWillResignActive:(UIApplication *)application { // Save the mission bec...
This is how my code looks currently NSTimer *delayTimer; delayTimer = [NSTimer scheduledTimerWithTimeInterval:0.01 target:self selector:@selector(longRunner) userInfo:nil ...
i need to display a timer in the background for the webrequest loading time in the minutes:seconds format.When the webrequest is loaded successfully the timer has to stop.My code is here: @interface TimerWithWebrequestViewController : UIViewController { IBOutlet UIWebView *webView; IBOutlet UILabel *lbl; int mainInt; NST...
Hi, will creduce Battery Power?suppose If I use lot of timers in My App for Animation, will it affect My Battery Power? ...
I have a Class with a NSTimer *myTimer; variable. At some point I do: myTimer = [NSTimer scheduledTimerWithTimeInterval:20 target:self selector:@selector(doStuff) userInfo:nil repeats: YES]; further, I have a method: - (void)doStuff { if(myTimer) { //do stuff } } and I stop my timer when the class is released through: ...
I have a requirement in my app which requires me to display some message to the user if there is no activity happening for about 3 hours on the app/ipad. I considered the solution of having an NSTimer that would start at launch. If the user performs any action, I invalidate the timer and start a new one. However, there is video playback ...
I'm creating an app that is basically an extension of a tutorial (I am very new to the app development world). The tutorial had a cyan coloured box moving around the screen to the point where you touch. What I did was change the background to an ImageView so it looks like the deep sea and I put a ImageView inside the cyan UIView to dis...
I would like to build a few simple countdown timers in a UITableview. I noticed the World Clock app has animated clocks in each of it's rows. What is the best method to firing an NSTimer to update each table row? Can a single timer be run that updates all cells or should I have a custom view subclass with built in timer that is added to ...
Hi ,everyone I got problem here I need to update a plist data in a period time and I use Tab Bar to switch 2 views When I select to view1 ,It will load data from an URL But if I switch to view2 , the view1 still update the data If you switch to view2 and switch back ,view2 keep updating the data. and this is the code I'm using to ...
Is it good practice for an object in Objective-C to commit suicide? That is, for an object to declare [self dealloc] where -dealloc permits an orderly wind down as usual? What are the principal risks? As it happens I have a specific example, a custom timer object that extends NSObject and comprises an NSTimer instance and an NSUInteger ...
Hi everyone, I'm creating a small stop watch with UIImageViews for the digits.I have 2 views controllers.One is the main view controller and when you press the "Stop Watch" button it loads the 2nd view controller with stop watch.I have created a NSTimer like this.... timerMain = [NSTimer scheduledTimerWithTimeInterval:0.01 target:self ...
Hi guys! Heres the deal: I code an UIImageView in the viewDidLoad and i want it to move down with my fonction buttonPressed** without creating an other subview like i do. Heres the code. -(void)viewDidLoad { [super viewDidLoad]; banetteImage = [UIImage imageNamed:@"myBanette.png"]; UIImageView *banetteView = [[UIImageView alloc] in...
Hi all, What is the correct way to release a NSTimer in my dealloc method ? It was created with the following code ? -(void)mainTimerLoop { mainTimer = [NSTimer scheduledTimerWithTimeInterval:1/10 target:self selector:@selector(gameLoop) userInfo:nil repeats:YES]; } Thanks, Martin...
I constantly get malloc error : double freed.... The echoTime function is being called by a button. When i press the button again before the timer ends it gives me the malloc error. When i press the button after the timer finished to start it again, the simulator hangs. Does anyone know what is wrong with the following piece of code: -(...
I've got a repeating NSTimer that I invalidate manually some time before I dealloc the object that owns the callback that is invoked by the timer. I verify that when I invalidate the timer, the callback is not being called anymore. When the object deallocs, an instant later I get an EXC_BAD_ACCESS. The crash is correlated with whether...
How can I pass a parameter to the method called by a NSTimer? My timer looks like this: [NSTimer scheduledTimerWithTimeInterval:4 target:self selector:@selector(updateBusLocation) userInfo:nil repeats:YES]; and I want to be able to pass a string to the method updateBusLocation. Also, where am supposed to define the method updateBusLoc...
I have a UITableView which I need to update about 2-3 times a second via NSTimer. The cells in this table have UIButtons which respond to touchupinside. The problem is that this created extreme sensitivity. I could not press the button for too long otherwise it wouldn't register. That issue was solved in http://stackoverflow.com/questio...
Hi, I have an NSTimer running in a shared class. + (GlobalClass *)sharedInstance; Basically it runs once, and the second time it runs, it just killed the whole app. This is how I'm doing the NSTimer myTimer = [NSTimer scheduledTimerWithTimeInterval:5.0 target:self ...
I have to keep a NSThread or NSTimer when my iPhone application goes into background mode. Is it possible ? I have enabled the background modes in info.plist and opened readstream and writestream as follows ...(I am using UDP) CFReadStreamSetProperty(readStream, kCFStreamNetworkServiceType,kCFStreamNetworkServiceTypeVoIP); CFWrite...