Recent questions tagged IOS

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I want to add sub view and remove with one tap. This is my code: /* To add subview */ var testView: ... Someone can help me please? 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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476 views

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ios - Setting alpha on UIView sets the alpha on its subviews which should not happen

According to the documentation for UIVIew @property(nonatomic) CGFloat alpha The value of this property is a floating- ... what can be done? See Question&Answers more detail:os...

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

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342 views

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ios - Swift 3 - device tokens are now being parsed as '32BYTES'

I just updated from Xcode 7 to the 8 GM and amidst the Swift 3 compatibility issues I noticed that my device ... // Prints my device 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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400 views

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ios - how to add an action on UITextField return key?

I have a button and text textfield in my view. when i click on the textfield a keyboard appears and i can write ... happen. How can I do 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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310 views

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ios - Custom iPhone camera controls (not using UIImagePickerController)

While I understand that in order for an iPhone application to be accepted on the App Store, one requirement is ... some more light on 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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426 views

1 answer

ios - How to create popover in iPhone app?

I'm looking for popover in iPhone and i want to make it like iOS 5 Reader feature: After little research i ... this API built-in iphone SDK. See Question&Answers more detail:os...

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

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332 views

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ios - delegate and datasource methods for UITableView

Can anyone list delegate methods and data source methods for UITableView? Are delegates and data sources methods are same for UITableView? See Question&Answers more detail:os...

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

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269 views

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ios - Expand cell when tapped in Swift

I have been trying to implement a feature in my app so that when a user taps a cell in my table view, ... cell } Here are the outlet settings: See Question&Answers more detail:os...

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

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329 views

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ios - how to present a view controller on iOS7 without the status bar overlapping

I'm seeing when I migrated my app to iOS 7, the nav bar is appearing under the status bar when presenting ... I selected. See answer below. See Question&Answers more detail:os...

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

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635 views

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ios - Convert UIImage to NSData without using UIImagePngrepresentation or UIImageJpegRepresentation

I Need to convert UIImage to NSData but without using UIImagePngRepresentation or UIImageJpegRepresentation, for images from ... ? please help See Question&Answers more detail:os...

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

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384 views

1 answer

ios - I lost my public key. Can I recover it from a private key?

I created a key pair + signed certificate for iOS/OSX development. Somewhere along the way, I lost the public ... something new to the answer. See Question&Answers more detail:os...

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

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383 views

1 answer

ios - How to print AFNetworking request as RAW data

For debuging purposes I'd want to print whole request body. I'm using AFHTTPClient. printing client gives some information, ... 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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290 views

1 answer

ios - UIRefreshControl on viewDidLoad

I'm using the following code to create a UIRefreshControl: - (void) viewDidLoad { [super viewDidLoad]; ... I should handle 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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385 views

1 answer

ios - How do you make an UIImageView on the storyboard clickable (swift)

I am new to swift (and Xcode development in general) and I was wondering how to make an ImageView on the ... , it shows another view controller. See Question&Answers more detail:os...

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

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561 views

1 answer

ios - How to flip UIImage horizontally with Swift?

The solution to do UIImage flipping is with the Objective-C code: [UIImage imageWithCGImage:img.CGImage scale:1 ... with Swift? Thanks! See Question&Answers more detail:os...

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

0 votes

283 views

1 answer

ios - How to subclass UITableViewController in Swift

I want to subclass UITableViewController and be able to instantiate it by calling a default initializer with no arguments ... of 'init()' See Question&Answers more detail:os...

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

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287 views

1 answer

ios - How to scroll to top in IOS7 UITableView?

In IOS6 I have the following code to scroll to the top of a UITableView [tableView setContentOffset:CGPointZero animated: ... top (but almost). See Question&Answers more detail:os...

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

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613 views

1 answer

ios - UIPageViewController page control background color

i'm using UIPageViewController in my app and it's working fine. however, it's page control which has been added ... instead of black to clear. See Question&Answers more detail:os...

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

0 votes

311 views

1 answer

ios - How to fix Xcode error: Could not locate device support files on iPhone with Xcode

I have this error for the new iPhone X: Could not locate device support files. This iPhone X (Model A1865, ... to edit them to trick Xcode? 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 - Dismiss more than one view controller simultaneously

I'm making a game using SpriteKit. I have 3 viewControllers: selecting level vc, game vc, and win vc. ... { super.didReceiveMemoryWarning() } } See Question&Answers more detail:os...

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

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257 views

1 answer

ios - Swift - Allow Rotation on iPad Only

How could I allow my universal app written in Swift on iOS 8.3 SDK to support only portrait mode on iPhone, but ... could I do this in Swift? See Question&Answers more detail:os...

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

0 votes

467 views

1 answer

ios - what's the purpose of "--no-use-binaries" in carthage

As titled, what's the purpose of "--no-use-binaries" in carthage command line? if missing this, what could ... 's the benefit to have 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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506 views

1 answer

ios - Xcode storyboard: Internal error. Please file a bug

While editing in the storyboard, specifically assigning a view controller to a specific class, I suddenly ... encounter this before? See Question&Answers more detail:os...

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

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273 views

1 answer

ios - Xcode 6.3 Crashes when navigating from storyboard to other Swift 1.2 file

I installed Xcode 6.3 which includes support for Swift 1.2. It turned up a ton of error messages, which are ... on the 21st of April 2015. 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

1 answer

ios - Uploading Images from UIImage Picker onto new Firebase (Swift)

I have a UIImagePicker set up within my app that works fine. I would like to upload a profile picture to ... find this image/snapshots's NSURL? See Question&Answers more detail:os...

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

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366 views

1 answer

ios - Rendering a SceneKit scene to video output

As a primarily high-level/iOS dev, I'm interested in using SceneKit for animation projects. I've been ... was missing something lower-level! See Question&Answers more detail:os...

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

0 votes

398 views

1 answer

ios - Replace UITextViews text with attributed string

I have a UITextView and when the user is entering text into it, I want to format the text on the fly. Something ... select text and so on.... See Question&Answers more detail:os...

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

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228 views

1 answer

ios - Best way to transition between two images in a UIImageView

I have implemented a pretty simple picture viewer that will allow the user to browse through a collection of ... would be very 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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