Recent questions tagged iOS

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ios - How to Set UITableViewCellStyleSubtitle and dequeueReusableCell in Swift?

I'd like a UITableView with subtitle-style cells that use dequeueReusableCellWithIdentifier. My original Objective-C code ... Any ideas? 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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ios - "Your binary is not optimized for iPhone 5" (ITMS-90096) when submitting

this is my first ios app and when i try to submit it to the app store it gives me the ITMS-90096 error ... apps seems quite alien to me. See Question&Answers more detail:os...

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

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ios - How do you loop AVPlayer in Swift?

Simple question I can't seem to find an answer to for some reason. How do you loop AVPlayer in Swift? ... (self.playerLayer_1) player_1!.play() See Question&Answers more detail:os...

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

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ios - How to combine two Dictionary instances in Swift?

How do I append one Dictionary to another Dictionary using Swift? I am using the AlamoFire library to send a ... [String : AnyObject]' operands See Question&Answers more detail:os...

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

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ios - display done button on UIPickerview

I have written the following code in the viewDidLoad method: categoryPickerView=[[UIPickerView alloc]init]; ... on button click. See Question&Answers more detail:os...

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

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341 views

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ios - Broken UISearchBar animation embedded in NavigationItem

I am experiencing a problem with the new way of adding search bar to the navigation item. As you can see in the ... red; return true } } 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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ios - How to Load Local PDF in UIWebView in Swift

So I am currently trying to display a local PDF I have in UIWebview and this is the code I'm using: ... very outdated or in Objective-C. See Question&Answers more detail:os...

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

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ios - How to call JavaScript Function in objective C

I am new programmer to objective C. I added some html file to Objective C. In this html file ... :@"myFunction()"]; See Question&Answers more detail:os...

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

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ios - Objective-C: How to extract part of a String (e.g. start with '#')

I have a string as shown below, NSString * aString = @"This is the #substring1 and #subString2 I want"; ... : Question was edited for clarity See Question&Answers more detail:os...

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

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ios - How to detect whether custom keyboard is activated from the keyboard's container app?

I was wondering if there is a method that would allow me to detect from the keyboard container app whether ... extension is activated? 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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326 views

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ios - Storing images in Core Data or as file?

I have set of data which contains images also. I want to cache this data. Should i store them on file system or on core data and why? See Question&Answers more detail:os...

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

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ios - How to display an image using URL?

The error is: "fatal error: unexpectedly found nil while unwrapping an Optional value" I am doing the following in ... and it was not nil. See Question&Answers more detail:os...

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

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546 views

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ios - Referring to weak self inside a nested block

Suppose I already create a weak self using __weak typeof(self) weakSelf = self; [self doABlockOperation:^{ ... ... { [weakerSelf doSomething]; } 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 - How to write an Objective-C Completion Block

I'm in a situation where need to call a class method from my view controller, have it do it's thing, but then ... (succeeded, error); }); } @end See Question&Answers more detail:os...

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

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314 views

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ios - Attempting to load the view of a view controller while it is deallocating... UISearchController

I have code that creates a UISearchController' in my UIVIew'sviewDidLoad`. self.resultSearchController = ({ let controller ... What is going on? See Question&Answers more detail:os...

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

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416 views

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ios - How to split filename from file extension in Swift?

Given the name of a file in the bundle, I want load the file into my Swift app. So I need to use ... me to split this filename and extension? See Question&Answers more detail:os...

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

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477 views

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ios - View at the bottom in a UIScrollView, with AutoLayout

I'm setting up content in a scroll view with autolayout. The objects in the scrollview are pinned top-to- ... I achieve that with AutoLayout? See Question&Answers more detail:os...

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

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482 views

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ios - Add glowing effect to an SKSpriteNode

I have a moving black image on a dark screen, to make it easier to see I would like to add in a ... if you need more information please ask. See Question&Answers more detail:os...

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

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369 views

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ios - UIDevice currentDevice model possible values

What are all the possible values returned by [[UIDevice currentDevice] model];? It isn't documented. See Question&Answers more detail:os...

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

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348 views

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ios - Loading a ViewController inside a Container View

I have a containerView with full screen inside a VC. If i add a child to the containerView manually from a ... } I get super strange results: See Question&Answers more detail:os...

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

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544 views

1 answer

ios - wireless iphone app distribution - problem with itms-services protocol

I've followed all the directions from Apple and some other blog posts. I've archived the app, made .plist and ... bar and it displays as 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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421 views

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ios - How to Add iPhoneX Launch Image

Using Xcode Version 9.0 (9A235), I am trying to add a Launch Image for iPhoneX at the requested 2436px 1125px ... if you do. Typical, really. See Question&Answers more detail:os...

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

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459 views

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ios - Setting scroll position in UITableView

I have an application that works some what similar to how iPhone's Contact application works. When we ... :(NSIndexPath *)indexPath; See Question&Answers more detail:os...

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

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307 views

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ios - iOS11 photo library access is possible even if settings are set to "never"

if UIImagePickerController.isSourceTypeAvailable(.photoLibrary) { let imagePicker = UIImagePickerController() imagePicker. ... behaviour? See Question&Answers more detail:os...

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

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402 views

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ios - IOS7 Status bar hide/show on select controllers

I would like to show and hide the Status bar on some controllers. Can this be done or is it more of an ... when it slides that would look best. See Question&Answers more detail:os...

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

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385 views

1 answer

ios - Calculate the color at a given point on a gradient between two colors?

So this is essentially the method I would like to write (in Objective-C/Cocoa, using UIColors, but I'm ... a certain 'location' between 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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582 views

1 answer

ios - Why can't JavaScript .play() audio files on iPhone safari?

I've got a JavaScript web app working that plays some audio periodically like this: var SOUND_SUCCESS = new Audio(' ... Is this still the case? 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 do you enable ARC project-wide in Xcode 4.2

I have an iOS app that I want to convert to using ARC. I would just use the migration tool, but it errors ... me to convert the project to ARC See Question&Answers more detail:os...

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

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