Tagged Questions

iOS is Apple's operating system for mobile devices, such as the iPhone, iPod touch, iPad and Apple TV (2nd generation and up) devices. It shares a lot with Mac OS X, but is optimized for touch-based interfaces.

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23 views

How to check NSArray objectAtIndex that the value in it does not repeat?

How to check NSArray objectAtIndex that the value in it does not repeat? I have have two integer A and B. Both giving random values. Now I have int C also, C = B - A; I want the numbers does not ...
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1answer
11 views

Loading image with AFNetworking - Resizing

First of all, I'm using this AFNetworking method: [imageView setImageWithURL:[NSURL URLWithString:@"http://site.com/img.png"]]; 1 - This method is asynchronous? It will cache the image in iPhone? ...
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22 views

How to create dynamic label show by scrollview?

I tried show web service fields on some labels by select count.I am sorry my question is ver y large but I must solve this problem. I have some labels. Select "1" branch ...
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4answers
46 views

Back button not responding ?

I am newbie in iOS development and currently stuck on creating back button. I already placed popViewControllerAnimated method on tapping button, also I test it on debugging mode and back button method ...
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0answers
6 views

NSRunloop bug(?): NSStream don't read/write when device unlocked

I use a socket connection in the main stream. Everything works fine as long as the application is active. But when the device is locked and then unlocked the problems begin: connection is created and ...
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1answer
16 views

An iOS application with a Like button that likes Facebook page

I am writing an iOS application that needs to set "likes" in Facebook page by button clicking. When I send me/og.likes POST request with params("object" - URL to Facebook page and "access_token"), I ...
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1answer
12 views

How to find Location area code and Cell Id for iPhone

We need to retrieve cell id and lac information about connected cell towers. Android provide cell id and location using GsmCellLocation, But haven't found similar in iOS. Please suggest your ...
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0answers
32 views

XCode: Application crashes without reason in main function

Most of my applications crashes with SIGABRT signal in main function when trying to run them on simulator. Crashes does not appear always, but somewhere in 50% of cases. I have tried to use exception ...
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0answers
19 views

Zoom turns image white?

I'm doing some live video processing on iOS with OpenCV. I do a couple of things to the image, first I inspect it and draw some overlays, then I zoom it by a factor of two. In processImage, if I do ...
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2answers
34 views

Nsmutable array Automatically replacing previous value

ARRAY REPLACING PREVIOUSLY ADDING OBJECT. array=[[NSMutableArray alloc]init]; NSNumber * index; AppDelegate * delegate=(AppDelegate *)[[UIApplication sharedApplication]delegate]; ...
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0answers
16 views

Crash report.. [UITableView(UITableViewInternal) _createPreparedCellForGlobalRow:withIndexPath:]

I have been seeing the below crash in my app through testflight. I am not understanding where and how this crash happens. I have multiple UITableViewControllers in my app ( around 10 ), hence not ...
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0answers
29 views

App crash ,as soon as going to call method second time using NSTimer

I have call a methode using timmer like this. timmer= [NSTimer scheduledTimerWithTimeInterval:5.0 target:self ...
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2answers
21 views

Center iOS view hierarchy in center of superview

iOS view hierarchies are doing my head in - I want to achieve something that should be basic. In a UIWebView I want to center a UIActivityIndicatorView with a UILabel below it in the middle of the ...
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0answers
6 views

How to store and retrieve an image in phonegap

i have an image which is loaded from camera, how should i store the image locally once and display the image every time i load the page in phonegap. Please help me with the code.
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0answers
20 views

UITableView does not show any cells after UIViewController popped then returned to

I have a UITableView within a UIViewController and am having an issue where the table displays ok on first load via a segue, but when you push the back button on the header, then go forward to the ...

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