Recent questions tagged iOS

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ios - UIImageView missing images in Launch Screen on device

I have an app that supports iOS8 and later, built in Xcode 7 and I am using a XIB for a Launch Screen ... neither of which seems relevant 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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ios - ITSAppUsesNonExemptEncryption export compliance while internal testing?

I got this message while selecting build for internal testing.it says about setting ITSAppUsesNonExemptEncryption in info. ... is it necessary? See Question&Answers more detail:os...

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

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ios - Dashed line border around UIView

How do I add dashed line border around UIView. Something Like this See Question&Answers more detail:os...

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

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ios - Center NSTextAttachment image next to single line UILabel

I'd like to append an NSTextAttachment image to my attributed string and have it centered vertically. I've ... which the attachment is drawn? See Question&Answers more detail:os...

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

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ios - Remove empty space before cells in UITableView

I am currently trying to put a UITableView in a different location rather than at the top of my view controller. ... ? Is there any easier way? See Question&Answers more detail:os...

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

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513 views

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ios - Images can't contain alpha channels or transparencies

Apple has released new version of iTunes Connect & I got an error message when I tried to set Screenshots ... alpha channels or transparencies." See Question&Answers more detail:os...

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

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ios - Xcode 10: A valid provisioning profile for this executable was not found

Since yesterday I've been getting the following error when trying run an app on my device: A valid provisioning ... of what to try next. See Question&Answers more detail:os...

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

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ios - Why I get the console warning: [Process] kill() returned unexpected error 1 when I load a WKWebView in iOS13.2?

Since I installed the iOS 13.2 beta, I have been getting a debug console error message. It happens every time ... else is having the same issue. See Question&Answers more detail:os...

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

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ios - Xcode Simulator: how to remove older unneeded devices?

I'm running Xcode 4.3.1 iOS-Simulator which originally only supports iOS 5.1. I need to test my code with ... in a comment below already...] See Question&Answers more detail:os...

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

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ios - Specifying one Dimension of Cells in UICollectionView using Auto Layout

In iOS 8 the UICollectionViewFlowLayout supports automatically resizing cells based on their own content size. This ... in multiple columns. See Question&Answers more detail:os...

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

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409 views

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ios - Xcode process launch failed: Security

I have been developing an app for 1 or 2 weeks now and just yesterday I have updated my iPhone 5S to the ... my iPhone and in the simulator. See Question&Answers more detail:os...

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

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396 views

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ios - Get random child from Firebase Database

I am trying to use Firebase 3 and Swift 3, to make an app that allows users to create "tests", and the purpose is ... uid I supply? If so, how? See Question&Answers more detail:os...

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

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249 views

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ios - Getting back a date from a string

im dealing with dates, and i'm having problems getting my date back from a string, i simplified my problem here: let date ... , 12:00 AM" (???) See Question&Answers more detail:os...

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

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394 views

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ios overlaying alpha channel video on another video

I have been trying to create a video template which uses alpha channel video overlayed on the ... /52b28a9f8d4f980f3a3f99c3_lrg_main_main.mov ? See Question&Answers more detail:os...

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

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295 views

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ios - Clear background for form sections in SwiftUI?

I'm trying to remove the white background of some sections so the elements lay right on the grey background, ... this be achieved in SwiftUI? See Question&Answers more detail:os...

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

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344 views

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ios - How to handle iphone screen sizes/resolution for background images

After the iPhoneX, I am really struggling with the image sizes and naming conventions which supports all devices. ... imageview in full screen? See Question&Answers more detail:os...

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

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504 views

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ios - Unexpected behavior when casting an NSNumber to Float

After upgrading to Xcode 9.3 (9E145) my App showed some unexpected behavior. It seems that the issue ... documentation that describes this? See Question&Answers more detail:os...

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

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294 views

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ios - Which is the best way to estimate measure of photographed things?

My app is supposed to estimate the length (in millimeters) of an object using euro coins as reference. This is a ... help would be useful to me. See Question&Answers more detail:os...

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

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528 views

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ios - uicollectionview remove top padding

I have a UICollectionView that is the entire view but it lives inside "view" (it is not UICollectionViewController) ... rid of that top padding? See Question&Answers more detail:os...

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

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513 views

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ios - Storyboard is not showing custom color hex code in XCode 12.0.1

After updating to the latest Xcode, into storyboard I am not able to see actual custom color hex code. It ... Please check the below screenshot. See Question&Answers more detail:os...

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

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384 views

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ios - How to post nested json by SwiftyJson and Alamofire?

How to post nested json like below as body of method by SwiftyJson and Alamofire?(Swift 3) { "a":{ "a1" ... of them helped for this situation. See Question&Answers more detail:os...

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

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622 views

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ios - Redirect NSLog to File in Swift not working

I am trying to send NSLog to a file in Swift 3 running on Simulator, IOS 10.2 and nothing is being ... creating the file first without success. See Question&Answers more detail:os...

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

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616 views

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ios - iPhone - Convert CTFont to UIFont?

I am trying to convert a CTFont to a UIFont without losing any of the styles and attributes such as: ... Font color Underlines Bold Italic etc See Question&Answers more detail:os...

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

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266 views

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ios - Rotating a view in layoutSubviews

Background and goal Goal: I want to rotate and flip a UITextView. (Why: see my previous question) Problem: If ... slowed down by doing this. See Question&Answers more detail:os...

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

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274 views

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ios - Using UpdateChildValues to delete from Firebase

I am trying to delete data from several locations in the Firebase database simultaneously. The Firebase docs state: " ... places in one call. See Question&Answers more detail:os...

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

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363 views

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ios - Swift UIColor initializer - compiler error only when targeting iPhone5s

The Situation: Working from a new project: iOS > Application > Game > SpriteKit, Swift, iPhone Here I've ... I've edited is GameScene.swift See Question&Answers more detail:os...

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

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280 views

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ios - How to customize the navigation back symbol and navigation back text?

This is the back icon and back text now: But if I want my navigation back like this: I have tried to set ... want icon image: But it useless. See Question&Answers more detail:os...

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

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268 views

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ios - How to get navigation based template functionality in Swift programming

I need a navigation controller through out my project and my application has a social login initially. Once ... should also have navigation. See Question&Answers more detail:os...

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

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