Top "Ios4" questions

Overriding layoutSubviews when rotating UIView

When rotating a scroll view inside a UIView, the scroll view doesnt position correctly using its default autoresizing behaviour. Thus, …

iphone objective-c uiview ios4 layoutsubviews

Is it possible to attach UITapGestureRecognizer to UILabel subclass

I'm trying to attach gesture recognizer to my own class which is subclass of UILabel, but it does not work. …

iphone ios xcode ios4

ImageIO: <ERROR> JPEG Corrupt JPEG data: premature end of data segment iphone - how to catch this?

I get this error by downloading an image by HTTP. I have looked at the answer here but even the …

iphone ios ios4 uiimage javax.imageio

Core Location region monitoring

Does anyone know any knowledge of using this: - (void) startMonitoringForRegion:(CLRegion *)region desiredAccuracy:(CLLocationAccuracy)accuracy I am trying to …

iphone objective-c ios4 cllocationmanager cllocation

how to update MKPolyline / MKPolylineView?

I am trying to create a polyline (MKPolyline) overlay that updates periodically, to simulate the movement of an object. I …

iphone objective-c mapkit ios4

AVCaptureSession pause?

I am using the AV Foundation for capturing images continuously after Apple released iOS 4.0 by following the codes given by, …

ios4 avfoundation avcapturesession

Custom Arabic font in iOS

I am trying to make an iphone application that displays mainly Arabic language content. I want to use a custom …

iphone fonts ios4 arabic custom-font

iPhone app running Simulator 4.0 received Sigkill

I just got the iPhone SDK 4 and I'm trying to leave off developing an app I was working on before. …

iphone debugging ios4 sigkill

iOS 4 blocks and retain counts

I'm just getting started with blocks and Grand Central Dispatch. I've been told (and read in the Apple Documentation) that …

iphone memory-management ios4 retain objective-c-blocks

iphone: playing audio playlist in the background?

I'm trying to play sequence of audio files in the background using AVAudioPlayer. When the app is not in the …

iphone audio ios4 avaudioplayer multitasking