Recent questions tagged IOS

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ios - Add swipe to delete UITableViewCell

I am making a CheckList application with a UITableView. I was wondering how to add a swipe to delete a ... the difference it will make). See Question&Answers more detail:os...

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

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255 views

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ios - Maintaining good scroll performance when using AVPlayer

I'm working on an application where there is a collection view, and cells of the collection view can contain video. ... they can fix this soon. See Question&Answers more detail:os...

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

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538 views

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ios - Completion handler for UINavigationController "pushViewController:animated"?

I'm about creating an app using a UINavigationController to present the next view controllers. With iOS5 ... :animated:completion: ? See Question&Answers more detail:os...

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

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329 views

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ios - How to create an empty array in Swift?

I'm really confused with the ways we create an array in Swift. Could you please tell me how many ways to create an empty array with some detail? See Question&Answers more detail:os...

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

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315 views

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ios - Xcode 8 / Swift 3: "Expression of type UIViewController? is unused" warning

I've got the following function which compiled cleanly previously but generates a warning with Xcode 8. func ... code executes as expected. See Question&Answers more detail:os...

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

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226 views

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ios - After upgrading to Xcode 11.2 from Xcode 11.1, app crashes due to _UITextLayoutView

After upgrading to Xcode 11.2 from Xcode 11.1 my app crashes: *** Terminating app due to uncaught exception ' ... How can I prevent this crash? See Question&Answers more detail:os...

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

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414 views

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ios - UICollectionView - Horizontal scroll, horizontal layout?

I have a UIScrollView that lays out a grid of icons. If you were to imagine the layout for the ... to write a custom UICollectionViewFlowLayout? 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 - How to batch request with AFNetworking 2?

So I'm rewriting an app for iOS 7 with AFNetworking 2.0 and I'm running into the issue of ... requests with my AFHTTPSessionManager subclass? See Question&Answers more detail:os...

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

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326 views

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ios - didReceiveRemoteNotification: fetchCompletionHandler: open from icon vs push notification

I'm trying to implement background push notification handling, but I'm having issues with determining whether the ... would never be called. See Question&Answers more detail:os...

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

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242 views

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ios - Is there a public way to force MPNowPlayingInfoCenter to show podcast controls?

I would like Control Center (via MPNowPlayingInfoCenter) to show the forward 15 seconds / back 15 seconds ... would be greatly appreciated. See Question&Answers more detail:os...

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

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381 views

1 answer

ios - Distribution certificate / private key not installed

Using Xcode 9.1, after building an iOS app, I want to archive it and upload it to the appStore for beta- ... In order to make things work. See Question&Answers more detail:os...

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

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762 views

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ios - No Swipe Back when hiding Navigation Bar in UINavigationController

I love the swipe pack thats inherited from embedding your views in a UINavigationController. Unfortunately i cannot ... still have the swipe? See Question&Answers more detail:os...

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

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202 views

1 answer

ios - How to add a Container View programmatically

A Container View can be easily added into a storyboard through Interface Editor. When added, a Container View is ... changes in Container View. See Question&Answers more detail:os...

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

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256 views

1 answer

ios - If no Table View results, display "No Results" on screen

I have a tableview, where sometimes there might not be any results to list, so I would like to put ... separator lines are showing up? See Question&Answers more detail:os...

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

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699 views

1 answer

ios - Using Core Data, iCloud and CloudKit for syncing and backup and how it works together

I am in the early stages of creating an app where I would like to save, sync and backup data. The app will ... this question not to get closed. See Question&Answers more detail:os...

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

0 votes

393 views

1 answer

ios - Stop "developer tools access needs to take control of another process for debugging to continue" alert

I recently upgraded to 10.7.3, and when I try to debug my iOS project in the simulator for the first time ... the _developer group using id -a. See Question&Answers more detail:os...

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

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506 views

1 answer

ios - How do we create a bigger center UITabBar Item

I am wondering how do we create a bigger center UITabBar like the shot below? Its really beautiful!!!! See Question&Answers more detail:os...

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

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391 views

1 answer

ios - UIView vertical flip animation

I have an iOS UIView with UIViewAnimationTransitionFlipFromRight. I need it to flip vertically though. The page curl ... custom. Any ideas? See Question&Answers more detail:os...

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

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234 views

1 answer

ios - Make REST API call in Swift

I'm trying to use Swift to make a GET call to a REST API, and have tried to follow numerous tutorials, ... call, and parse returned JSON data? See Question&Answers more detail:os...

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

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365 views

1 answer

ios - How can I add CGPoint objects to an NSArray the easy way?

I have about 50 CGPoint objects that describe something like a "path", and I want to add them to an ... initializing the NSArray with objects? See Question&Answers more detail:os...

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

0 votes

405 views

1 answer

ios - ERROR ITMS-9000: "Redundant Binary Upload. There already exists a binary upload with build version '1.0' for train '1.0'"

I am trying to upload my build on iTunes Connect via Xcode 5.1.1 but it is continuously showing that it is ... as it's quicker than organizer. See Question&Answers more detail:os...

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

0 votes

423 views

1 answer

ios - App installation failed due to application-identifier entitlement

I am unable to install a watchOS 2 WatchKit app due to an application-identifier entitlement. This happened after ... added, but same error. See Question&Answers more detail:os...

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

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609 views

1 answer

ios - How do I xcodebuild a static library with Bitcode enabled?

Xcode 7 introduces Bitcode, which is some sort of LLVM intermediate binary that means Apple's servers can ... proper bitcode-enabled library? See Question&Answers more detail:os...

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

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248 views

1 answer

ios - Xcode6: Run two instances of the simulator

I have two different targets for my iOS app. Is it possible to run simultaneously the two apps on two ... very heavy/space-consuming solution. See Question&Answers more detail:os...

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

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293 views

1 answer

ios - Migrating from UIWebView to WKWebView

in my app I'm migrating from UIWebView to WKWebView , how can I rewrite these function for WKWebView? func ... (htmlString, baseURL: baseUrl) } See Question&Answers more detail:os...

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

0 votes

505 views

1 answer

ios - UICollectionView spacing margins

I have a UICollectionView which shows photos. I have created the collectionview using UICollectionViewFlowLayout ... own UICollectionViewLayout? See Question&Answers more detail:os...

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

0 votes

272 views

1 answer

ios - Custom Cell Row Height setting in storyboard is not responding

I am trying to adjust the cell height for one of the cells on my table view. I am adjusting the size ... storyboard, if that is possible. See Question&Answers more detail:os...

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

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340 views

1 answer

ios - Cocoa Touch: How To Change UIView's Border Color And Thickness?

I saw in the inspector that I can change the background color, but I'd like to also change the border color and thickness, is this possible? See Question&Answers more detail:os...

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

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