Difference between revisions of "Swift code snippets"
From Hawk Wiki
(→Navigate to Storyboard ID) |
(→Adding UIRefreshControl) |
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Line 31: | Line 31: | ||
refreshControl = UIRefreshControl() | refreshControl = UIRefreshControl() | ||
− | refreshControl.addTarget(self, action: " | + | refreshControl?.addTarget(self, action: "fetch", forControlEvents: UIControlEvents.ValueChanged) |
− | + | tableView.insertSubview(refreshControl!, atIndex: 0) | |
} | } | ||
//to stop refresh, call | //to stop refresh, call | ||
− | self.refreshControl.endRefreshing() | + | if let rc = self.refreshControl { |
+ | self.refreshControl!.endRefreshing() | ||
+ | } | ||
</pre> | </pre> | ||
Revision as of 05:17, 20 February 2015
Contents
Making Network Request
var clientId = "Put your client id here" var url = NSURL(string: "https://api.instagram.com/v1/media/popular?client_id=\(clientId)")! var request = NSURLRequest(URL: url) NSURLConnection.sendAsynchronousRequest(request, queue: NSOperationQueue.mainQueue()) { (response: NSURLResponse!, data: NSData!, error: NSError!) -> Void in var responseDictionary = NSJSONSerialization.JSONObjectWithData(data, options: nil, error: nil) as NSDictionary self.photos = responseDictionary["data"] as NSArray self.tableView.reloadData() println("response: \(self.photos)") }
Use setImageWithURL
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.
In an Objective-C bridging file:
#import <AFNetworking/UIImageView+AFNetworking.h>
In the swift view file, to set a imageView using URL:
setImageWithURL(NSURL(string: thumbnail))
Adding UIRefreshControl
//refreshControl is automatically defined in UITableViewController override func viewDidLoad() { super.viewDidLoad() refreshControl = UIRefreshControl() refreshControl?.addTarget(self, action: "fetch", forControlEvents: UIControlEvents.ValueChanged) tableView.insertSubview(refreshControl!, atIndex: 0) } //to stop refresh, call if let rc = self.refreshControl { self.refreshControl!.endRefreshing() }
Example of fetching messages from Parse
https://gist.github.com/sandofsky/7134b1ff90d235901254
Auto Table Row Height
//Auto table row height tableView.estimatedRowHeight = 92.0 tableView.rowHeight = UITableViewAutomaticDimension
var vc = storyboard.instantiateViewControllerWithIdentifier("loginViewController") as UIViewController window?.rootViewController = vc