Recent questions tagged IOS

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ios - Creating a UISearchDisplayController programmatically

I'm trying to create a UISearchDisplayController programmatically. I have a method which should set up my ... would be 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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459 views

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ios - How to customize ternary operators in Swift

I know how to customize binary operators, like this infix operator ** { associativity left precedence 170 } func * ... idea? Thanks so much! See Question&Answers more detail:os...

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

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395 views

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ios - Failed to install app error: Invalid Bundle - No Apple Watch Binary

I'm trying to develop an extension of my app for the Apple Watch. Instead of install the app on the watch, I ... </string> Did I miss something? See Question&Answers more detail:os...

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

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846 views

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ios - How can I generate an array of floats from an audio file in Swift

I would like to load mp3 and wav audio files as arrays of floats or doubles, similar to the io.wavfile.read ... frameCount: Int(file.length)) } 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 - popping to root view in navigation controller

I have one navigation controller with three views. I push the three view controllers onto the navigation controller's ... how I could do that? 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 - How is iPhone Contact app's detail View implemented

I would like to implement a view similar to the detail view of Apple's own Contacts app where it displays ... a UITableView or a UIScrollView? See Question&Answers more detail:os...

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

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633 views

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ios - Set Camera Focus On Tap Point With Swift

The API for using the camera in swift seems a but different and I am having a hard time focusing the ... suggestions are more than welcome! 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 - Custom background/transparent background on UIBarButtonItem?

How is this effect achieved? Code snippets are highly welcome. This can be seen in Notes app and other apps ... .com/iBooks%201.1%20-%206.png See Question&Answers more detail:os...

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

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299 views

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ios - Search Array of Dictionaries for Value in Swift

I'm new to Swift and taking a class to learn iOS programming. I find myself stumped on how to search in an array ... what I'm trying to do here. 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 - Type 'Any' has no subscript members after updating to Swift 3

Here is my code in Swift: currentUserFirebaseReference.observeSingleEvent(of: .value, with: { (snapshot: FIRDataSnapshot) ... to stop working. See Question&Answers more detail:os...

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

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346 views

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ios - Maximize the number of simultaneous http-downloads

I'am trying to perform as many as possible simultaneous http-downloads an IPad2 ( ios6.0 ). This is pure for ... in C++ ) or thread priority See Question&Answers more detail:os...

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

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707 views

1 answer

ios - Hijri (islamic) calendar in swift ??????? ??????

can someone help me please I'm trying to create an IOS app using Swift language and I need to use Hijri ( ... year 1434 in hijri not 2576 ! See Question&Answers more detail:os...

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

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423 views

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ios - Get the initials from a name and limit it to 2 initials

I have a the following name: John Fitzgerald Kennedy. To get its initials, I created a method: extension String { ... the letter in the middle? See Question&Answers more detail:os...

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

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533 views

1 answer

ios - What is better place for loading data from API- viewDidLoad, viewWillAppear or viewDidAppear?

I am making an IOS app where i am calling an API in viewDidLoad method of view controller. Now i want to reload ... ?? 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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565 views

1 answer

ios - How to solve this CollectionView crash?

My app has two CollectionViewControllers. Only one is visible at a given time. I have created the following ... when the crashes happen. See Question&Answers more detail:os...

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

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528 views

1 answer

ios - Save image to photo library using photo framework

My app crashes every time when I try to save image using photo framework. -(void)imagePickerController: ... performChangesAndWait:error:]' See Question&Answers more detail:os...

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

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328 views

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ios - Why is Xcode's Variables View's "Edit Value" not changing the variable value?

In Xcode's Variables View, on the right of the Debug area, when an app is running and paused at a breakpoint you ... now thinks foo is (foo)") See Question&Answers more detail:os...

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

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634 views

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ios - Swift/iOS13 - Access SceneDelegate window variable in a ViewController

Is it possible to access window variable from SceneDelegate in a ViewController? Basically I need an alternative for ... can't find anything See Question&Answers more detail:os...

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

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488 views

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ios - How to use PHPhotoLibrary like ALAssetsLibrary

For iOS9, ALAssetsLibrary is deprecated. So how to change it as PHPPhotoLibrary instead of ALAssets? if (RecordedSuccessfully && ... ) {}]; } } See Question&Answers more detail:os...

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

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508 views

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ios - 'bytes' is unavailable: use withUnsafeBytes instead

Code that was previously working in Swift 2.2 is now throwing the following error in Swift 3: Here is my code: let ... 't get my head around 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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346 views

1 answer

ios - Reading raw bytes from an Aztec barcode via AVMetadataMachineReadableCodeObject yields unexpected result

I have been working on an iOS reader app for a special kind of barcode used by Deutsche Bahn (german ... testArray, length: testArray.count) See Question&Answers more detail:os...

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

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416 views

1 answer

ios - Reset Facebook Token Reference - Facebook SDK 4.0

I previously used the following to clear and reset the Facebook access token [FBSession.activeSession ... . Any suggestions? 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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ios - "no such module" on Xcode 7 beta 2

I saw this question, but I am still unable to import a framework and use it inside Xcode 7 beta 2 (7A121l). ... Edit 2: Opened a radar: 21588771 See Question&Answers more detail:os...

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

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551 views

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ios - AFNetworking - How can I PUT and POST raw data without using a key value pair?

I am trying to make an HTTP PUT request using AFNetworking to create an attachment in a CouchDB server. The ... method to use? 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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727 views

1 answer

ios - How do I convert swift Dictionary to NSDictionary

I'm trying to convert a [String : String] (a Swift Dictionary) to NSDictionary, for later use on a ... data!, encoding: NSUTF8StringEncoding)! See Question&Answers more detail:os...

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

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645 views

1 answer

ios - <CATransformLayer: 0x14fea3710> - changing property masksToBounds in transform-only layer, will have no effect

I am getting this warning report in xCode 7.0 This happens when i am using MBProgress HUD in my project. How to ... in Xcode 7 but no use... See Question&Answers more detail:os...

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

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412 views

1 answer

ios - PhoneGap and iPhone 5: Remove top and bottom black stripes

I'm using PhoneGap to build a mobile app for iOS. Lately I downloaded the new Xcode and ran the app on iPhone5 ... new 4-inch screen iPhone 5? See Question&Answers more detail:os...

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

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473 views

1 answer

ios - Instruments show leak in main.m (Xcode 4.3.1)

I am developing an app using ARC When profiling my app in instruments for memory leaks it shows leaks at the ... main.m:16 30 MyProject start See Question&Answers more detail:os...

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

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