Recent questions tagged IOS

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ios - Unable to convert CIImage to UIImage in Swift 3.0

I am making image form QR Code by using following code: func createQRFromString(str: String) -> CIImage? { ... an Optional value Debug Tests: See Question&Answers more detail:os...

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

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ios - Xcode /Podfile.lock: No such file

I am trying to run an ionic app on xcode. But xcode throws an apple match-o linker error. I get this error ... i have fixed the error with pods. See Question&Answers more detail:os...

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

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ios - Cannot invoke 'indexOf' with an argument list of type '(ChecklistItem)'

When I am writing code for finding an item from the array with the use of indexOf it shows me the above ... cell, withChecklistItem: item) } } See Question&Answers more detail:os...

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

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ios - Document directory path change when rebuild application

I download the video file from url and save it in document directory with this path: let destination: ... can solve this 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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386 views

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ios - Cancel button is not shown in UISearchBar

I have UICollectionView. On clicking search button in UINavigationBar, I am adding the UISearchController's searchbar as ... 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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350 views

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ios - How to access extension of UIColor in Swift?

I am very new to swift and trying to create an extension of UIColor class as extension UIColor{ func ... an argument to this statement. See Question&Answers more detail:os...

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

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365 views

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ios - APNS Push Notifications Not Working on Production

I created an App to send remote notifications from a web server. When I tested the App in Development Mode all ... the solution to my issue! See Question&Answers more detail:os...

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

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362 views

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ios - instantiateViewControllerWithIdentifier - Storyboard id set but still not working

I have to created a segue programmatically however when I click on the button the view controller does not change ... its driving me mad. Thanks See Question&Answers more detail:os...

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

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970 views

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ios - How to detect AVPlayer actually started to play in swift

Hello I have set my UISliderminimum value to 0.00. Then I set it's max value in this way. self.viewPlayer. ... the video? Please help me. Thanks See Question&Answers more detail:os...

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

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ios - SwiftUI withAnimation completion callback

I have a swiftUI animation based on some state: withAnimation(.linear(duration: 0.1)) { self.someState ... when the animation completes. See Question&Answers more detail:os...

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

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336 views

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ios - Set a PasswordField to secureTextEntry give me a strange behaviour

I have a passwordField for which I set the isSecureTextEntry to true to hide the characters. But when I click on ... similar to 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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525 views

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ios - Undefined symbols for architecture armv7 for Cocoapods libraries

I stumbled upon a problem on a project that I need to work on. The project use Cocoapods for managing its ... the target. 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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375 views

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ios - What does $0 represent in closures in Swift?

I have seen closures in Swift use $0 internally and sometimes they use $1. What exactly is $0 and what are other $X ... ) array.map({$0 + 1}) See Question&Answers more detail:os...

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

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227 views

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ios - Xcode 8 Image Completion

In Xcode 8, you have images autocompleted while typing. Question is : Why? I tried to init UIImage with the suggested ... know how to use it ? See Question&Answers more detail:os...

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

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245 views

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ios - None of your accounts are a member, code signing errors after upgrading to Xcode 8

I'm trying to run some example projects from GitHub. After upgrading to Xcode 8, I see the same set of errors ... 2901178, but it didn't 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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498 views

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ios - UIActivityViewController completion handler returns success when tweet has failed

I'm using a UIActivityViewController to display a share sheet so users can share my app. I'm currently ... apple.share.Twitter.post invalidated See Question&Answers more detail:os...

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

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394 views

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ios - Auto-implement Swift protocol methods in Xcode

I just started with the swift language and coming from java it looks great so far. But I'm really missing something: ... I'm using Xcode 6.1.1 See Question&Answers more detail:os...

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

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226 views

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ios - Type 'NSAttributedStringKey' (aka 'NSString') has no member 'font'

Just updated pods for xcode 9 and I'm getting the error below for Cosmos. Type 'NSAttributedStringKey' (aka 'NSString') has no member 'font' See Question&Answers more detail:os...

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

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253 views

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ios - Why was UITextField's text property changed to an optional in Swift 2?

According to the UIKit diff document, in ios9/Swift 2 var text: String! has become var text: String? According ... or help on why this changed. See Question&Answers more detail:os...

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

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293 views

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ios - FBSOpenApplicationErrorDomain Code=3

I just added a Watch app to my project and try : override func awakeWithContext(context: AnyObject?) { super. ... am doing wrong ? Thanks ! See Question&Answers more detail:os...

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

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199 views

1 answer

ios - Getting the local iPhone number through SDK

I am looking for a SDK API to retrieve the device's local phone number from the SIM card. Is there a way to do it? See Question&Answers more detail:os...

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

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450 views

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ios - UIView drawRect: Draw the inverted pixels, make a hole, a window, negative space

With the code below I am drawing a rounded rectangle. It draws a nice solid light gray filled rounded ... ); CGContextRestoreGState(context); } See Question&Answers more detail:os...

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

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271 views

1 answer

ios - How to sort 1 array in Swift / Xcode and reorder multiple other arrays by the same keys changes

Sorry for the complex wording of the question. My main experience is with PHP and it has a command called ... to change to remain consistent. See Question&Answers more detail:os...

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

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373 views

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ios - Removing lagging latency in drawing UIBezierPath smooth lines in Swift

The code below draws smooth curved lines by overriding touches, but there is noticeable lagging or latency. The code ... can be recreated. } } See Question&Answers more detail:os...

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

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277 views

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ios - Can you install an Android Device Simulator in xcode when using Apportable

Can you install an Android Device Simulator in Xcode when using Apportable to convert an iOS app to Android or do I ... I go buy one. Thanks See Question&Answers more detail:os...

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

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198 views

1 answer

ios - How to ignore certain UITouch Points in multitouch sequence

I am working on a drawing app for ipad, I am providing full screen for drawing. So as we all now, ... them and only draw hello Thanks Ranjit See Question&Answers more detail:os...

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

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300 views

1 answer

ios - Changing iPhone's date and time

I'm toying with iOS SDK, and I'm trying to change the device's date and time programmatically. I read that it ... to publish it on the App Store 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

1 answer

ios - Is there a way to programmatically restore my iPhone to factory settings?

I am developing for a jailbroken app and I don't care if it's rejected by the App store. I ... to factory restore my iphone programmatically. See Question&Answers more detail:os...

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

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