swift2

问题 Closed . This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 3 years ago . How can I design programmatically UIButton like this gradient border color? ] Thanks for help 回答1: let gradient = CAGradientLayer() gradient.frame = CGRect(origin: CGPointZero, size: self.myButton.frame.size) gradient.colors = [UIColor.blueColor().CGColor, UIColor.greenColor()

问题 I am trying to show the downloaded HTML page in the app. Please explain the simplest way to do so without using any third party libraries. cheers, 回答1: You can show a html page in app without downloading let pageUrl = NSURL (string: "http://www.stackoverflow.com"); let req = NSURLRequest(URL: url!); if you want to show a local file you show like this let htmlfilePath = NSBundle.mainBundle().URLForResource("filename", withExtension: "html"); let req = NSURLRequest(URL: htmlfilePath !); webview

问题 Strings in 2.0 no longer conform to CollectionType . Each character in the String is now an Extended Graphene Cluster . Without digging too deep about the Cluster stuff, I tried a few things with Swift Strings: String now has a characters property that contains what we humans recognize as characters . Each distinct character in the string is considered a character, and the count property gives us the number of distinct characters. What I don't quite understand is, even though the characters

问题 The other questions I've seen on this didn't help. I want to be able to start, pause, and then resume the NSTimer. I know how to start the NSTimer. I also know that you can't 'pause' the NSTimer but you can invalidate it. But what would I have to do if I wanted to resume it keeping the same time I had when I stopped the timer? Here's the code: var startTimer = NSTimeInterval() var timer = NSTimer() @IBOutlet var displaylabel: UILabel! @IBAction func start(sender: UIButton) { timer = NSTimer

问题 I have an array of tuples that is created from a JSON. typealias TagAndLocation = (tag: String, location: String) var resultTuples = [TagAndLocation]() for (_, subJSON) in json { let Tag = subJSON["Tag"].string! let Location = subJSON["Location"].string! let tagloc = (tag: Tag, location: Location) resultTuples.append(tagloc) } Then I'll use func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell { let cell = UITableViewCell(style:

问题 I've created a wizard for user's to sign up using my app, however, I'm having some doubts as to how I should store their information along the way. I have a User model, which is filled out when users are pulled from the database, however, there are some required fields on this model that wouldn't be filled out if I were to use it as the object that is passed along as the user goes through the the wizard. Here is my User model: final class User: NSObject, ResponseObjectSerializable,

问题 This is my table created in Firebase here. I have a search button. The button action will be at first it will fetch data from firebase and then it will send it to another view controller and will show it in a table view. but main problem is that before fetching all data from Firebase self.performSegueWithIdentifier("SearchResultPage", sender: self ) triggers and my next view controller shows a empty table view. Here was my effort here. From this post here I think that my code is not placed

问题 Question---> Is there a way to retrieve a node whose key is an autoID , which Might contain a particular key. Like in below JSON structure i have a child node powers inside some autoID 's, not all of them , I want to retrieve only those nodes which have key powers in them not knowing what corresponding value might be . In the below two suggested approach which one would consume less BandWidth ? My JSON Tree node1 -node12 -autoId1 expo: "5122223333" users: -MqrvHRBTRcPzrvAOdkklBzeFW7E2

问题 I have already change toolchain to swift 2.3 by export PATH=/Applications/Xcode-beta.app/Contents/Developer/Toolchains/Swift_2.3.xctoolchain/usr/bin:"${PATH}" And did Open the Xcode project -> Click on the Realm project -> RealmSwift target -> 'Build Settings' tab -> set Use Legacy Swift Language Version to Yes (if building for Swift 2.3) or No (if building for Swift 3). as Build realm for Swift 3 & Xcode 8 says. But what I get is still swift 3.0 version. Any idea? I looked into build.sh and

问题 I am developing application for tvOS in swift using Xcode 7.3, I had written a Class to split events on the basis of my requirements like - import UIKit class SplitEvents: NSObject { var eventDisplayArray:NSMutableArray = [] var eventHiddenArray:NSMutableArray = [] var lastMemorisedDate:NSDate? var tempEventStartDateEndDateArray:NSMutableArray? func InitialiseFunction (displayArray:NSMutableArray, HiddenArray hiddenArray:NSMutableArray, ResultArray result:NSArray, completionHandler: