Recent questions tagged iOS

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ios - Setting contentOffset programmatically triggers scrollViewDidScroll

I've got a a few UIScrollView on a page. You can scroll them independently or lock them together ... the various contentOffset values. See Question&Answers more detail:os...

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

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991 views

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ios - Development team not showing in Xcode

I am an self-employed iOS developer and so have my own iOS distribution membership. For a few days, I am ... are finally fixing it in 2018: See Question&Answers more detail:os...

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

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549 views

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ios - How to hide first section header in UITableView (grouped style)

As the design of table views using the grouped style changed considerably with iOS 7, I would like to ... contained in a navigation controller. See Question&Answers more detail:os...

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

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154 views

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ios - "Could not find any information for class named ViewController"

This bug has been driving me nuts since I started using Xcode (4.6.3). Whenever I try to link a ... the Internet has helped. Any pointers? See Question&Answers more detail:os...

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

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224 views

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ios - How can I concatenate NSAttributedStrings?

I need to search some strings and set some attributes prior to merging the strings, so having ... attributedString to another attributedString? See Question&Answers more detail:os...

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

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236 views

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ios - FBSOpenApplicationErrorDomain code =4 error

When I'm trying to run iOS application in Xcode 6 in iPhone 6 simulator, I'm getting error Unable to run app ... one suggest how to resolve it? See Question&Answers more detail:os...

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

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217 views

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ios - How to integrate NSURLConnection with UIProgressView?

I'm trying to integrate a NSURLConnection object with UIProgressView, so I can update the user while a file download ... What am I missing 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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195 views

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ios - How to do transforms on a CALayer?

Before writing this question, I've had experience with Affine transforms for views read the Transforms ... understanding 2D transforms. See Question&Answers more detail:os...

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

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388 views

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ios - How to programmatically add a UISegmentedControl to a container view

How would I define the frame for a UISegmentedControl? I would like the segmented control to appear at the bottom ... container view i.e UIView. See Question&Answers more detail:os...

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

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900 views

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ios - Add a border outside of a UIView (instead of inside)

If a add a border of a view using code in a view like self.layer.borderColor = [UIColor yellowColor].CGColor; ... one, how can I implement it? 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

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ios - swift : Closure declaration as like block declaration

We can declare block as below in Objective-C. typedef void (^CompletionBlock) (NSString* completionReason); I'm trying to ... flag : Int) -> () 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

1 answer

ios - How to fade a UIVisualEffectView and/or UIBlurEffect in and out?

I want to fade a UIVisualEffectsView with a UIBlurEffect in and out: var blurEffectView = UIVisualEffectView() ... that one, no 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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672 views

1 answer

ios - No suitable records were found verify your bundle identifier is correct

I have created an app in App Store Connect and it has been in the "prepare for submission" state for ... your bundle identifier is correct. See Question&Answers more detail:os...

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

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253 views

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ios - Record, save and/or convert video in mp4 format?

I have the following problem - I am trying to create an app that records video, then save it to the ... completion:nil]; Thanks in advance! 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 - InputAccessoryView docked at bottom

I'm trying to achieve similar positioning behavior as the bottom text input bar in Apple's Messages app. I ... hacky fixes to accomplish that. See Question&Answers more detail:os...

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

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734 views

1 answer

ios - How to Increase Line spacing in UILabel in Swift

I have a label which has few lines of text and I want to increase the spacing between the lines ... through NSAttributedString its 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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213 views

1 answer

ios - Compensating compass lag with the gyroscope on iPhone 4

I've been experimenting with the compass and gyroscope on iPhone 4 and would like some help with an issue I ... forward to hearing your answers! See Question&Answers more detail:os...

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

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269 views

1 answer

ios - ARKit hide objects behind walls

How can I use the horizontal and vertical planes tracked by ARKit to hide objects behind walls/ behind ... objects appearing through walls? See Question&Answers more detail:os...

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

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379 views

1 answer

ios - How to restrict UITextField to take only numbers in Swift?

I want the user to only enter numeric values in a UITextField. On iPhone we can show the numeric keyboard, ... numeric values in a UITextField? See Question&Answers more detail:os...

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

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392 views

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ios - Stripping out HTML tags from a string

How do I remove HTML tags from a string so that I can output clean text? let str = string. ... range: nil) print(str) 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

1 answer

ios - How to obtain Certificate Signing Request

How do I obtain a Certificate Signing Request? All I'm trying to do is get my app running on my ipod touch. ... I'm still on the same computer. See Question&Answers more detail:os...

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

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352 views

1 answer

ios - Programmatically fire button click event?

Is there a way to programmatically fire a button click event? I have a button placed there in an UIView, and in a ... me how to do that. Thanks. See Question&Answers more detail:os...

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

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235 views

1 answer

ios - Programmatically get height of navigation bar

I know that the presence of the more view controller (navigation bar) pushes down the UIView by its height. I also ... . Well there you have it. See Question&Answers more detail:os...

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

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165 views

1 answer

ios - Xcode: issue "file xxx.png is missing from working copy" at project building

After deleting/adding some png files to project, i have got messages when building project. "file ... to remove these messages? 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 - Intercept Objective-C delegate messages within a subclass

I have a subclass of UIScrollView in which I need to internally respond to scrolling behaviour. However, the ... after running some code? See Question&Answers more detail:os...

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

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231 views

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ios - What does get-task-allow do in Xcode?

When I set up my entitlements in my iPhone app project, I create a new Entitlements.plist, and set the value ... install the app on my device) See Question&Answers more detail:os...

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

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308 views

1 answer

ios - How to hide the keyboard when I press return key in a UITextField?

Clicking in a textfield makes the keyboard appear. How do I hide it when the user presses the return key? See Question&Answers more detail:os...

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

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327 views

1 answer

ios - WatchKit Extension bundle identifiers

I am trying to build my app but it failed. I am shown the message below. error: WatchKit Extension doesn't ... cannot find where to change 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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