nstimer

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NSTimer causing some weird delay

Ok my first app ever is a timer. Right after I made hello world as the convention seems to be. I am using the NSTimer class as my timer and I fire it every second and then I change the text in a UILab[详细]

2023-03-19 12:14 分类：问答
Swiping on a Label sholud move one view to another

I have a requirement in which I need toswipe on a label andafter swiping on it,it should take me to the other view.[详细]

2023-03-18 20:00 分类：问答
NSTimer Category + Blocks implementation to replace selector

I am quite new to blocks and objective-c, and i am trying to write my first category using both. My idea is to create a category on NSTimer that will receive a block as a parameter and this block will[详细]

2023-03-18 17:25 分类：问答
How long does it exactly take for a view to rotate in iOS?

I want to use NSTimer to call a method once the view is done rotating. How long does th开发者_如何学Pythone view take to rotate exactly? Thanks for your help!You can implement didRotateFromInterfaceOr[详细]

2023-03-18 04:01 分类：问答
How to use NSTimer to make an image alpha change/fade?

I am programming an app for the iphone in Objective C in Xcode. What I am trying to do is to make a splash screen at the start of my app last for about 2 or 3 seconds, I have looked throughout the int[详细]

2023-03-18 03:33 分类：问答
NSTImer & sending args throught selector

I am trying to do animation. At some point I want to execute a method through NSTimer. I need to pass in 1 argument. This I do it through userInfo in NSTimer. In the selector method I am trying to acc[详细]

2023-03-17 13:07 分类：问答
Handling NSNotificationCenter notification is causing bad_access

I am subclassing the UIWindow of my app then when there is no activity from user I raise a notification using NSNotificationCenter.I am using[详细]

2023-03-17 03:28 分类：问答
UIView animation determine center during animation

I\'m using UIView\'s + animateWithDuration:delay:options:animations:completion: method to move my view along a line over the course of a few seconds or so.[详细]

2023-03-16 21:00 分类：问答
How to call a function only one time per week or month?

I am asking myself how to call a function only one time per week or month? I thought about NSTimer, but that only works during the app is active, doesn\'t it?[详细]

2023-03-16 16:15 分类：问答
NSTimer/NSOperationQueue performing inconsistently iphone

I am trying to resolve UI issues surrounding NSTimer/NSOperationQueue performing inconsistently. I am seeing that regardless of whether I use NSTimer or NSInvocationOperation to trigger the code below[详细]

2023-03-16 14:24 分类：问答