Recent questions tagged iOS

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ios - How to hide the navigation bar and toolbar as scroll down? Swift (like myBridge app)

I want to hide a toolbar and nav bar as I scroll down a page. And return it as I scroll up. How is ... or is this down with the scrollview? 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 - scale Image in an UIButton to AspectFit?

I want to add an image to a UIButton, and also want to scale my image to fit with the ... stretchableImageWithLeftCapWidth:0 topCapHeight:0]; 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

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ios - How to remove the Xcode warning Apple Mach-O Linker Warning 'Pointer not aligned at address

I have a slight issue when build my Xcode project, get tones of warning after update pod. It looks like ... quite annoying. Anyone could help? See Question&Answers more detail:os...

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

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530 views

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ios - Swift: How to get substring from start to last index of character

I want to learn the best/simplest way to turn a string into another string but with only a subset, starting ... to handle substrings in 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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321 views

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ios - UITextView style is being reset after setting text property

I have UITextView *_masterText and after call method setText property font is being reset. It's happening after I change ... :@"New text"]; } See Question&Answers more detail:os...

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

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760 views

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ios - UIButton touch is delayed when in UIScrollView

I'm running into a small issue in my app. I essentially have a series of UIButtons added as subviews ... scrollView is filled with UIButtons. See Question&Answers more detail:os...

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

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305 views

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ios - Silent push notifications only delivered if device is charging and/or app is foreground

I have implemented silent push notifications but I have noticed some strange behaviour. The silent push ... silent push notifications? See Question&Answers more detail:os...

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

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287 views

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ios - What #defines are set up by Xcode when compiling for iPhone

I'm writing some semi-portable code and want to be able to detect when I'm compiling for iPhone. So I want ... , and Google isn't much help. See Question&Answers more detail:os...

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

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246 views

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ios - When do app sources need to be included in test targets?

In a new project I have this simple test #import <XCTest/XCTest.h> #import "ViewController.h" @interface ... in the linker settings. See Question&Answers more detail:os...

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

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263 views

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ios - Snapshot of MKMapView in iOS7

I am trying to create a snapshot of a MKMapView in iOS7 application the same way it's recommended everywhere ... MKMapView snapshots in iOS7 ? See Question&Answers more detail:os...

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

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272 views

1 answer

ios - How to add 2 buttons into the UINavigationbar on the right side without IB?

How can I add 2 buttons into the UINavigationBar without XIB? The 2 buttons should be aligned on the right side ... button, but how about two? 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 - How to create a String with format?

I need to create a String with format which can convert Int, Int64, Double, etc types into String. Using Objective ... to do same with Wwift? 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

1 answer

ios - How can I implement a swiping/sliding animation between views?

I have a few views between which I want to swipe in an iOS program. Right now, I'm swiping between them ... anything, I just found that easiest. See Question&Answers more detail:os...

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

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825 views

1 answer

ios - Atos cannot get symbols from dSYM of archived application

I have a crash report from BugSense, so I have information on the memory location of crashes but they are not ... debug symbols from the app. See Question&Answers more detail:os...

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

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419 views

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ios - Xcode - There are no dSYMs available for download

I want to extract the dSYM file from but when I click on "Download dSYMs..." in the Organizer I get the follow ... 0.39. How can I get them? See Question&Answers more detail:os...

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

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442 views

1 answer

ios - How can I delay a method call for 1 second?

Is there an easy way delay a method call for 1 second? I have a UIImageView that reacts on a touch ... can't use the animationDidStop selector. See Question&Answers more detail:os...

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

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771 views

1 answer

ios - Xcode 10, Command CodeSign failed with a nonzero exit code

Everytime I build console is showing this message. CodeSign /Users/admin/Desktop/AppStoreBuild/Project201/build/Debug- ... again build failing. See Question&Answers more detail:os...

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

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258 views

1 answer

ios - How can I get the height and width of an uiimage?

From the URL Image in Mail I'm adding image to mail view. It will show full image. But I want to calculate ... the height and width of UIImage? 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

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ios - Resume NSUrlSession on iOS10

iOS 10 is going to be released soon so it worth to test applications for compatibility with it. During such ... be fixed on application side? See Question&Answers more detail:os...

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

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275 views

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ios - UIView backgroundColor disappears when UITableViewCell is selected

I have a simple tableViewCell build in interface builder. It contains a UIView which contains an image. Now, ... the tableView is selected? See Question&Answers more detail:os...

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

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450 views

1 answer

ios - Handling Touch Event in UILabel and hooking it up to an IBAction

Ok, so I have a UILabel created in interface builder that displays some some default text of "tap to begin". ... a simpler solution I'm missing? See Question&Answers more detail:os...

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

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324 views

1 answer

ios - iPhone SDK:How do you play video inside a view? Rather than fullscreen

I am trying to play video inside a UIView, so my first step was to add a class for that view and start ... ? and avoid it being 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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478 views

1 answer

ios - Disable autolayout constraint error messages in debug console output in Xcode

Is there a way to (temporarily) disable autolayout error/warning messages: Unable to simultaneously satisfy constraints. ... also be helpful. 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 - Getting the Value of a UITextField as keystrokes are entered?

Let's say I have the following code: IBOutlet UITextField* nameTextField; IBOutlet UILabel* greetingLabel; I'd like ... has entered so far). 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

1 answer

ios - Xcode changes unmodified storyboard and XIB files

Storyboards are rather a royal pain from a git workflow perspective when multiple people are collaborating on them ... more susceptible to 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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444 views

1 answer

ios - Paging UIScrollView in increments smaller than frame size

I have a scroll view that is the width of the screen but only about 70 pixels high. It contains many 50 x 50 ... a per-icon sized basis to 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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923 views

1 answer

ios - UICollectionView current visible cell index

I am using UICollectionView first time in my iPad application. I have set UICollectionView such that its size ... index of UICollectionView ? See Question&Answers more detail:os...

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

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400 views

1 answer

ios - How to draw border around a UILabel?

Is there a way for UILabel to draw a border around itself? This is useful for me to debug the text placement ... how big the label actually is. See Question&Answers more detail:os...

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

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