swift2

问题 I am working on the iOS application. This application base on the NEWS media. I am playing the small video of highlighted News. I am facing a stranger problem with AVPlayerViewController . When i play the video everything is fine. When i go to offline the buffer video play perfect & after the play buffer video, the video stops but the progress bar(Slider) continuously in play state while the video has been stopped. For more clearance please watch this GIF image : Please visit this link for

问题 I have code to load local rtf files in textview but how to do i make it works for files located online Since it does not works when i use url Here is url - http://howtotechworld.com/rtfdoc.rtf Here is code if let rtf = NSBundle.mainBundle().URLForResource("http://howtotechworld.com/rtfdoc", withExtension: "rtf", subdirectory: nil, localization: nil) { do { let attributedString = try NSAttributedString(fileURL: rtf, options: [NSDocumentTypeDocumentAttribute:NSRTFTextDocumentType],

问题 I'm trying to integrate Realm into my project and noticed an issue. I've seen other posts on this, but they were a little over a year ago and have been resolved.. When adding objects to Realm, things are file. But when removing objects, they get removed from the DB, but the file size is still large. If I open the realm file in TextEdit, I can see raw text of old records. Why aren't they getting fully deleted? Take a look at this screenshot. Zero files in the Realm DB, but the file size is 23

问题 I need to reduce constantly the time interval in an ImageView animation. I have a button to start it and then let's say I want to decrease the time interval pushing another button, how can I do it? When I press the first button I have to set the time interval and then it is constant, but I need to change it. Can you help me? 来源： https://stackoverflow.com/questions/38238667/how-to-decrease-constantly-time-interval-in-an-imageview-animation

问题 I have three view controllers which in the third one I have a picker view which it store data into core data, and when I press navigation bar back button I want second view controller to refresh it's labels from core data, but I don't know how Any suggestion ? 回答1: Use NSFetchRequest() method in viewWillAppear() method in second view controller 来源： https://stackoverflow.com/questions/35578699/reloading-view-controller-when-navigation-bar-back-button-is-pressed-in-swift-2

问题 I would like to create a simple distance function to order objects while fetched from a SQLite database in Swift2. I’m using the awesome SQLite.swift framework. With the following I could fetch the nearest objects: db.createFunction("distance") { (args) -> Binding? in assert(args.count == 4) if let lat1 = args[0] as? Double, let lon1 = args[1] as? Double, let lat2 = args[2] as? Double, let lon2 = args[3] as? Double { let deltaLat = lat1 - lat2 let deltaLon = lon1 - lon2 return deltaLat *

问题 I would prefer to use Person Struct , but I since it does not confirm to AnyObject , I can't use it with NSCountedSet class Person: AnyObject { var name: String = "" var age: Int = 0 var score: Int = 0 } let personA = Person() personA.name = "john" let personB = Person() personB.name = "larry" let personC = Person() personC.name = "jack" let personD = Person() personD.name = "bob" var people:[AnyObject] = [personD, personC, personA, personB, personC, personA, personC, personD, personD] let

问题 for a unit test of mine, I wrote a small helper that can get me a property Value by name. let m = Mirror(reflecting: self) let child1 = m.descendant(name) now the problem is that the child has Type Any? but the properties real type is e.g. Bool? So Any is actually an Optional! Thats why if child1 is Bool? never fires because Any? isn't the Bool?. But child1! is Bool? doesn't compile. And child1! is Bool isn't true! So how do I 'unbox' this reflected Any? value? a small example of what I mean

问题 I am following Google's tutorial https://developers.google.com/gmail/api/quickstart/ios?ver=swift to create a simple Swift project but compiler throws below error. Is this due to some changes in Xcode 7,Swift 2 ? Any idea how to fix it Undefined symbols for architecture arm64: "_OBJC_METACLASS_$_GTLService", referenced from: _OBJC_METACLASS_$_GTLServiceGmail in GTLGmail_Sources.o (maybe you meant: _OBJC_METACLASS_$_GTLServiceGmail) "_OBJC_CLASS_$_GTMOAuth2ViewControllerTouch", referenced from

问题 I just updated my XCode form 6.3 to 7.1 and thus also my project from Swift 1.2 to Swift 2. Everyting seems to work except my app starts some 6 seconds slower then it used to. I tracked the problem to this class initializer: class TextPreviewAdapter { private let themeProvider: ThemeProvider private let containerView: UIView private let previewText: UITextView private let carretView: UIView private var carretTextPosition: UITextPosition? init(themeProvider: ThemeProvider) { self.themeProvider