Top "Ios4" questions

The 2010-2011 version of the iPhone/iPad/iPod Touch/Apple TV operating system family, made by Apple.

CALayer as SubLayer Not Visible

I am trying to built an animated circle which would be drawn clockwise until it becomes complete circle as illustrated …

ios4 core-animation invisible quartz-core
What UIViewController method is called when opening app from background?

Is there any conventient way of determining if a view is being loaded from the app being in background mode? …

uiviewcontroller background ios4 ios multitasking
Using multiple nib files with a single view controller?

Background I'm using interface builder to create the UI for an app I'm working on. The app has a single …

ios ios4 uiview interface-builder nib
Instagram open UTI directly

I recently stumbled upon the following interesting feature: Instagram iPhone Hooks I was wondering if one is able to open …

objective-c ios ios4 uidocumentinteraction instagram
XCode 4.2. issue: Standard (armv7)

I want to update my app in the App Store but when I try to upload it I get an …

iphone ios4 xcode4 armv7 armv6
Changing color of UITableViewCellAccessoryCheckmark and UITextField

I want to change the color of UITableViewCellAccessoryCheckmark and UITextField background color where we type. I found this is not …

iphone cocoa-touch iphone-sdk-3.0 uikit ios4
CGContext text drawing doesn't scale up on iPhone 4

I am trying to create an app that scales up nicely on the iPhone 4. Currently most of it scales up …

objective-c iphone ios4 core-graphics iphone-4
iOS video streaming and storing on device afterwards

So far I know how to stream a video and how to download it and afterwards stream it, but here's …

iphone objective-c ios ios4 video-streaming
MKPinAnnotationView: Pin width and height

What is the width and the height of the MKPinAnnotationView pin in pixels? Edit: To be more concrete, the width …

ios ios4 mkmapview mkpinannotationview
How will I be able to remove [NSNull Null] objects from NSMutableArray?

I need to remove Null object added by [mutArrSkills addObject:[NSNull null]]; Do I need to iterate? Is there any …

iphone objective-c ios4 nsmutablearray