Difference between revisions of "Swift code snippets"

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==Making Network Request==
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=Swift Code Snippts=
<pre>
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Back To [[IOS_Swift]]
var clientId = "Put your client id here"
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==[[Swift: Use NSUserDefaults to Store Persistence Data]]==
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var url = NSURL(string: "https://api.instagram.com/v1/media/popular?client_id=\(clientId)")!
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var request = NSURLRequest(URL: url)
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NSURLConnection.sendAsynchronousRequest(request, queue: NSOperationQueue.mainQueue()) { (response: NSURLResponse!, data: NSData!, error: NSError!) -> Void in
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    var responseDictionary = NSJSONSerialization.JSONObjectWithData(data, options: nil, error: nil) as NSDictionary
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    self.photos = responseDictionary["data"] as NSArray
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    self.tableView.reloadData()
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    println("response: \(self.photos)")
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}
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</pre>
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==Use setImageWithURL==
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Create the bridging file: create a new Objective-C file, name it anything, and when you save it, Xcode will prompt you generate a bridging file. <br>
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In an Objective-C bridging file:
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<pre>
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#import <AFNetworking/UIImageView+AFNetworking.h>
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</pre>
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In the swift view file, to set a imageView using URL:
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<pre>
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setImageWithURL(NSURL(string: thumbnail))
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</pre>
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==Adding UIRefreshControl==
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<pre>
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//refreshControl is automatically defined in UITableViewController
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override func viewDidLoad() {
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    super.viewDidLoad()
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    refreshControl = UIRefreshControl()
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    refreshControl.addTarget(self, action: "onRefresh", forControlEvents: UIControlEvents.ValueChanged)
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    scrollView.insertSubview(refreshControl, atIndex: 0)
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}
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//to stop refresh, call
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==[[Swift: Making Network Request Using NSURLConnection]]==
self.refreshControl.endRefreshing()
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</pre>
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==[[Swift:Use AFNetworking setImageWithURL]]==
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==[[Swift:Using UIRefreshControl]]==
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==[[Swift:Using UIGestureRecognizer]]==
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==Swift:Example of fetching messages from Parse==
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https://gist.github.com/sandofsky/7134b1ff90d235901254
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==[[Swift:Auto Table Row Height]]==
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==[[Swift:Navigation between storyboards]]==
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==[[Swift:Notification Observer Using NSNotificationCenter]]==
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==[[Swift:Get Raw Histogram from CGImage]]==
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==[[Swift:UIGraphics Drawing on UIView]]==
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==[[Swift:UIGraphics Scale Down CGImage]]==
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==[[Swift: Convert between CGImage, CIImage and UIImage]]==
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==[[Swift:Detect Volumn Button Press]]==
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==[[Swift:NSTimer scheduledTimerWithTimeInterval]]==

Latest revision as of 03:10, 9 April 2015

Swift Code Snippts

Back To IOS_Swift

Swift: Use NSUserDefaults to Store Persistence Data

Swift: Making Network Request Using NSURLConnection

Swift:Use AFNetworking setImageWithURL

Swift:Using UIRefreshControl

Swift:Using UIGestureRecognizer

Swift:Example of fetching messages from Parse

https://gist.github.com/sandofsky/7134b1ff90d235901254

Swift:Auto Table Row Height

Swift:Navigation between storyboards

Swift:Notification Observer Using NSNotificationCenter

Swift:Get Raw Histogram from CGImage

Swift:UIGraphics Drawing on UIView

Swift:UIGraphics Scale Down CGImage

Swift: Convert between CGImage, CIImage and UIImage

Swift:Detect Volumn Button Press

Swift:NSTimer scheduledTimerWithTimeInterval