Recent questions tagged swift2

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swift2 - wkwebview auto fill login form swift 2

im new in the Swift World. I have a big problem ... I've tried to write an app that has only one ... there any way so solve my Problem? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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swift2 - UIApplication.sharedApplication() is unavailable

I just upgraded from XCode 6.4 to Xcode 7 GM and get started to change the code to be compliant with Swift ... might have screwed up my project. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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swift2 - calling a function defined in assembly from swift

I know in swift it is possible to interop with c using the @_silgen_name attr on a function in a swift module. Is ... . This is why I'm asking. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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swift2 - Why does Swift not allow stored properties in extensions?

I've been trying to find the best way to implement a stored property in an extension, and came across this question ... so, what is the reason? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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swift2 - Swift POST request don't work

I'm trying to make a post request with Swift. my goal is to post the accesstoken facebook to a server but does ... ","keys":["access_token"]}}) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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320 views

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swift2 - Swift 2.0 'inout' function parameters and computed properties

I'm testing Swift 2.0 beta right now and have found strange behaviour. Here is a sample code: private func ... of how inout params work. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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527 views

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swift2 - Swift error handling - determining the error type

In Swift error handling - how do you know what error type is being thrown without looking at the implementation and ... DecodedJWT(jwt: jwt) } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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swift2 - Draggable label - ios

I have a requirement to move a label around only when the user touches on it and drags. I cant find out ... moving :( someone help me please See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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swift2 - Swift 2: !, ? -" Value of optional type "..." not unwrapped"

Value of optional type "..." not unwrapped; did you mean to use '!' or '?'? Can someone explain me what this error ... I use '?' and when '!'? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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swift2 - Swift 2: !, ? -" Value of optional type "..." not unwrapped"

Value of optional type "..." not unwrapped; did you mean to use '!' or '?'? Can someone explain me what this error ... I use '?' and when '!'? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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554 views

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swift2 - Swift setting Badge Value for UITabBarItem

I'm attempting to add a badge alert label like the one in the screenshot attached. I've tried to ... stuck. Any suggestion is appreciated. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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310 views

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swift2 - What is the reason behind not importing Alamofire in my project?

I am making a demo of Alamofire using cocoa-pods.I am referring the tutorial "https://github.com/Alamofire/ ... this issue. Thanks in advance. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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swift2 - Swift Package Manager - UIKit Dependency

I have a Package.swift in my project like: import PackageDescription let package = Package( name: "ProjectName", ... where to find UIKit? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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545 views

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swift2 - New @convention(c) in Swift 2: How can I use it?

After migrating to Swift 2, I am getting this issue with an error stating that I should now use @convention(c) (T) - ... >, Float) -> Int>.self) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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445 views

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swift2 - Swift 2 array of tuples not working as in swift 1

Array: var rows: [(title: String, body: String, icon: String, iconColor: UIColor)] = [] rows.append(title ... fine. Any idea whats wrong? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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344 views

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swift2 - cannot subscript a value of type 'inout' [String :Double] (aka inout Dictionary<String, Double>)

How can if i try to add three menus in the dictionary i wont let me and throws an error when i try to ... no longer be supported in swift 3? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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463 views

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swift2 - Cannot invoke `join` with an argument list of type (String, [String]) in Swift 2.0

var specializationTitles = ["a", "b", "c", "d"] let outputString = join(" / ", specializationTitles) got an ... , [String]) How to solve this? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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376 views

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swift2 - Swift 2 protocol extension not calling overridden method correctly

I've been running into an issue using Swift 2's protocol extensions with default implementations. The basic gist ... s "from protocol extension See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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513 views

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swift2 - Extension of a nested type in Swift

I have a main class, also providing a namespace: class A { } and a nested class added via an extension (all ... submit a bug report to Apple. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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swift2 - How to "strongify" optional self using guard in Swift 2.0

There's a similar question about how to weakify/strongify self, which is answered, but I'm wondering how to use " ... code: 1, userInfo: nil) } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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398 views

1 answer

swift2 - Use Swift 2.2 in Xcode 8?

Is it possible to use Swift 2.2 in Xcode 8? From Xcode 8 release notes: "Xcode 8 supports switching toolchains, ... 8 to work with swift 2.2 See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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449 views

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swift2 - Understanding Swift 2.2 Selector Syntax - #selector()

I am switching over the syntax of my project toward Swift 2.2 (which xCode helps me do automatically); ... of Swift are greatly appreciated. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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353 views

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swift2 - Is it possible to satisfy Swift protocol and add defaulted arguments?

If you have protocol like so: protocol Messaging { func sendMessage(message: String) } Is there any way to ... of Swift's default parameters. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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377 views

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swift2 - How to restrict certain characters in UITextField in Swift?

I am creating a trivia application that asks for a username on start up. I'd like to make it impossible to ... Objective-C. Thanks in advance. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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327 views

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swift2 - Swift 2.0: Protocol extensions: Two protocols with the same function signature compile error

Given the two protocols and their extensions: protocol FirstDelegate { func someFunc() } protocol SecondDelegate ... protocol extensions here? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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488 views

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swift2 - Override func error in Swift 2

This code in XCode 6 does not have error but in XCode 7 (Swift 2) this error has occurred : Method does ... ' with the same Objective-C selector See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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435 views

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swift2 - How to convert a binary to decimal in Swift?

I am looking for a simple way to convert a binary number in decimal in Swift. For example, "10" in binary becomes "2" in decimal. Thanks, See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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379 views

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swift2 - How do you enumerate OptionSetType in Swift?

I have a custom OptionSetType struct in Swift. How can I enumerate all values of an instance? This is my ... / Do something with weekday } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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