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What is the best practice to parse html in swift?

I’m a Swift newbie. I need for something like Python’s BeautifulSoup in Swift iOS project. Precisely, I need to get all href of <a> that ends with “.txt”. What are the steps that I should take?

How to resize superview to fit all subviews with autolayout?

My understanding of autolayout is that it takes the size of superview and base on constrains and intrinsic sizes it calculates positions of subviews. Is there a way to reverse this process? I want to resize superview on the base of constrains and intrinsic sizes. What is the simplest way of achieving this? I have […]

Enabling auto layout in iOS 6 while remaining backwards compatible with iOS 5

What is the best way to take advantage of the new auto layout features of iOS 6 while still providing compability with older devices on earlier versions of iOS?

How to calculate UILabel height dynamically?

I want to calculate number of lines and height of UILabel dynamically from given text for same.

Start Location Manager in iOS 7 from background task

It seems that in iOS 7 an app can not start Location Manager (by calling startUpdatingLocation) from the background task anymore. In iOS 6 I used approach described here: https://stackoverflow.com/a/6465280 to run background location update every n minutes. The idea was to run background task with a timer and start Location Manager when the timer […]

How to post string with special character and Thai Language using XML parsing in objective c

I am new in ios and I am facing problem regarding to post string containing special character. My code is like this in DidFinishLoading: NSXMLParser *myNSXMLParserPostObj=[[NSXMLParser alloc]initWithData:myNSMDataPostFromServer]; myNSXMLParserPostObj.delegate=self; [myNSXMLParserPostObj parse]; NSLog(@”%@”,myNSXMLParserPostObj.parserError); NSString *responseStringWithEncoded = [[NSString alloc] initWithData: myNSMDataPostFromServer encoding:NSUTF8StringEncoding]; //NSLog(@”Response from Server : %@”, responseStringWithEncoded); NSAttributedString * attrStr = [[NSAttributedString alloc] initWithData:[responseStringWithEncoded dataUsingEncoding:NSUnicodeStringEncoding] options:@{ NSDocumentTypeDocumentAttribute: […]

Xcode iOS 8 Keyboard types not supported

I have a UITextField Ctrl-dragged as an @Outlet in my .swift class. Now in viewDidLoad i’m using this code self.myTextField.keyboardType = UIKeyboardType.DecimalPad When i launch my app on simulator and click on the UITextField i got this log Can’t find keyplane that supports type 8 for keyboard iPhone-Portrait-DecimalPad; using 2617181025_Portrait_iPhone-Simple-Pad_Default I have no crash or […]

Getting iOS system uptime, that doesn't pause when asleep

I’m looking for a way to get an absolute, always-incrementing system uptime on iOS. It should return the time since the device was last rebooted, and not be affected by changes to the system date. All the methods I can find either pause when the device is asleep (CACurrentMediaTime, [NSProcessInfo systemUptime], mach_absolute_time) or are changed […]

How to make a push segue when a UITableViewCell is selected

I have a list of effects in a table view. I have created a top right bar button which does a push segue to another view controller which helps create a new effect. Now I want to add push segues to the table view cells so that the effects values maybe loaded on the add […]

RSA implementations in Objective C

I am working on a simple app in objective-C that uses RSA Algorithm. I want to use it on Server/Client Communications. I need help in RSA Algorithm Implementation in iOS/iPhone. I have knowledge of encryption and decryption. I want an opensource library or code to add into my project. I have to go though CommonCryptor.h.