Tagged Questions

0
votes
0answers
5 views

What are the reasons that presentShareDialog returns nil?

I'm trying to allow the user to post a simple Facebook status update, without using OpenGraph. So far, allowing the user to log in and asking for publish_actions permissions, goes well without a ...
2
votes
0answers
61 views
+50

Importing, Displaying and Caching of large data

I'm trying to get data from some where and save it in a NSMutableArray of custom objects that contain that data and info. Every time the user opens the app the same data is loaded from source and ...
0
votes
0answers
36 views

Playing video and retrieving pixel buffer with ios5

What I would like to is to play a video (either from a local file and from a remote URL) and its audio track and retrieve the pixel buffer of each frame of the video to draw it to an OpenGL texture. ...
4
votes
1answer
240 views

Releasing an IOSurface

This question is an extension to: Link-1: Creating an image out of the ios surface and saving it Link-2: Taking Screenshots from iOS app - emulating Display recorder (query on the internals) (Refer ...
0
votes
3answers
414 views

UITextField - Rounded corner issue

I bring the issue forward which I face. I am creating a UITextField programmatically as below. UItextField *mobileNumberField = [[UITextField alloc] initWithFrame:CGRectMake(10, 195, 300, 41)]; ...
6
votes
2answers
5k views

What is Container View in iOS 5 SDK?

I'm confused that why and when we need to use the container view? and how can we instantiate a Container View by code?
2
votes
1answer
734 views

Drawing a very thin line with CGContextAddLineToPoint and CGContextSetLineWidth

I want to draw a very thin hairline width of a line in my UIView's drawRect method. The line I see that has a value 0.5 for CGContextSetLineWidth doesn't match the same 1.0 width value that is used to ...
5
votes
3answers
3k views

Check if logged in on ios facebook sdk 3.0

I am using iOS facebook SDK 3.0. How can i check if the user is already logged in? I tried the line below but it does not work properly. It sometimes returns NO although I am logged in. Any ...
2
votes
2answers
525 views

ksystemsoundid_vibrate not working in iphone4 and ipad

In my application,I need vibration while wrong password is being entered by the user. My device OS : iOS5 It is vibrating in iPhone3G but not vibrating in iPhone4 and iPad. I have followed this ...
2
votes
2answers
3k views

Xcode 4 UIButton segue push to Table View Controller

Right now I have a UIButton setup in my storyboard that pushes to a Table View Controller. This is working as expected. What I am trying to do is have the UIButton load an xml file when it is pressed ...
37
votes
1answer
5k views

What properties can I set via an UIAppearance proxy?

What properties can I set via an UIAppearance proxy? Apple's UIKit documentation does not list them. Is there a list of these properties?
1
vote
2answers
1k views

RestKit Linker error

I have been following the RestKit installation instructions but I now have an error when I try to build the app. This is for ios, iPad specific. I get "Command ...
5
votes
3answers
5k views

Passing data from one view controller to another; iOS <=4 vs iOS 5

First, a little background. I'm new to iOS development, I've been in .Net land for a long time, and that's probably why I'm even asking this question, but here goes. The basic setup is this. You have ...
33
votes
3answers
19k views

What is the difference between a .xib file and a .storyboard?

Can someone explain in simple words the difference between .xib and .storyboard?
6
votes
1answer
2k views

Crash/SIGABRT when I try to present a UIPopoverController

Hi I am at my wits end with what I am doing wrong here. I am using ios5 and nothing crashes if I do not call presentPopoverFromBarButtonItem. Has anyone experienced anything similar? I checked the ...

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