Recent questions tagged iOS

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ios - Select items programmatically in UICollectionView

I have a UICollectionViewController: - (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger ... 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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292 views

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ios - Xcode 5 - "No application records were found" when trying to Validate an Archive

Hi Folks: Just a person (not a company) trying to submit an app, developed with Xcode 5 to the App Store. ... world a better place :). -Ed See Question&Answers more detail:os...

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

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892 views

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ios - How can I detect the scroll direction from the UICollectionView?

I have a UICollectionView. I want to detect scroll direction. I have a two different animation style for scroll ... touched. Not work for me 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 - Changing UIPageViewController's page programmatically doesn't update the UIPageControl

In my custom UIPageViewController class: - (id)initWithCoder:(NSCoder *)aDecoder { self = [super initWithCoder: ... this was possible tho! See Question&Answers more detail:os...

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

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562 views

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ios - Cordova Xcode build failed "Permission denied"

I am trying to build an iOS app using Xcode and Cordova, however I keep getting this error message: ... anyone overcome this problem 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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241 views

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ios - iPhone only app rejected for not running on iPad

I received the following from Apple. I tried fixing the constraints for just iPad but I can get the scroll bar ... issue results in a crash log See Question&Answers more detail:os...

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

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255 views

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ios - Is there any way to access the accelerometer from the Apple Watch?

It doesn't look like WatchKit released today has such API included. See Question&Answers more detail:os...

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

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268 views

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ios - Which PHAssetCollection to use for saving an image?

In iOS 8's Photos.framework, I'm trying to save a UIImage to the user's photo library, much in the same ... not allow adding new content to 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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274 views

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ios - in-app purchase Sandbox Environment loop

I have in-app purchases working in my production app, and I'm adding a new item for sale. However, I ... m looking for any suggestions. 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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500 views

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ios - How to archive and unarchive custom objects in Swift? Or how to save custom object to NSUserDefaults in Swift?

I have a class class Player { var name = "" func encodeWithCoder(encoder: NSCoder) { encoder.encodeObject(name) } ... ahead What do i do wrong? See Question&Answers more detail:os...

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

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443 views

1 answer

ios - Segues initiated directly from view controllers warning in storyboard xcode

Hi I have created button programmatically and I connected it to another view, but I got segue warning that I should ... :@"WeekView"]; } } See Question&Answers more detail:os...

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

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264 views

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ios - Programmatically Checking if a Passcode Lock is Set

Since my app would be dealing with sensitive data of the user, I would like to know if there is a way I can ... to do it. Is this possible? See Question&Answers more detail:os...

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

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372 views

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ios - My button doesn't detect touch events on iPhone (Retina 4-inch) simulator, but works in iPhone (Retina 3.5-inch) simulator

I'm getting my app ready for the iPhone 5 using the simulator and I've found a weird issue where a couple ... in advance for all your wisdom! See Question&Answers more detail:os...

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

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863 views

1 answer

ios - supportedInterfaceOrientations not working

I want some of my ViewControllers landscape and some portrait so this is what I did: I enabled landscape mode: Next ... mode.How can I fix 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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578 views

1 answer

ios - Property 'self.*' not initialized at super.init call

I just updated my xcode to 6.3.1. The problem is I got this weird error message since Swift 1.2. I ... here originView = sourceView //error 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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353 views

1 answer

ios - Why is an NSDate in a Core Data managed Object converted to NSTimeInterval?

I have an object with a property with a Date type defined in my xcdatamodeld object. Why has it generated the ... get an NSDate back off 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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318 views

1 answer

ios - Parse Starter Project LogIn and Register View Controllers Errors

When I tried to use the Parse Starter Project (I downloaded it and installed it as per the instructions, but I ... (use -v to see invocation) See Question&Answers more detail:os...

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

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578 views

1 answer

ios - Keep getting "Unbalanced calls to begin/end appearance transitions for <ViewController>" error

I have an app that is almost running perfectly. Here is how my app is structured: 6 total View Controllers on the ... the right of the Login VC. See Question&Answers more detail:os...

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

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640 views

1 answer

ios - Add a navigation bar to a view without a navigation controller

I have a side menu that slides out to display a table view and from there I have segues that use the ... item without a navigation 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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406 views

1 answer

ios - How to detect tap on clear part of UITableView?

I have view controller with UITableView. Height of table view is static and == height of screen. Number ... delegate methods of 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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469 views

1 answer

ios - Using sysctlbyname() from Swift

I'm using the code from this Gist to determine which iOS device (e.g. iPhone5,1) my app is running on: ... to bridge into Objective-C for 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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306 views

1 answer

ios - xcode 9 crash when open storyboard

XCode 9 GM Candidate 1 is currently crashing when opening a storyboard. ProductBuildVersion: 9A235 UNCAUGHT EXCEPTION ... representing: (null)> 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

1 answer

ios - How to change iPhone UITableView delete button title while editing it

I need to change the title of the default delete button that appears when I attempt to delete a row from a ... after setting editing to YES. 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

1 answer

ios - Swift String escaping when serializing to JSON using Codable

I'm trying to serialize my object as following: import Foundation struct User: Codable { let username: String ... to be strictly unescaped. See Question&Answers more detail:os...

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

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600 views

1 answer

ios - Alamofire No Such Module (CocoaPods)

Using Xcode 7 I am trying to install Alamofire in a sample project. Have used the instructions from Ray ... download it from github page See Question&Answers more detail:os...

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

0 votes

256 views

1 answer

ios - Physicsbody doesn't adhere to node's anchor point

My scene has a bunch of rectangles with physics bodies that are the same size as the rectangle. I like to ... the work around is working well. See Question&Answers more detail:os...

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

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235 views

1 answer

ios - Find text in webview page using swift?

How can I find text in uiwebview page and highlight it and go to its position in the page using swift ? For ... search example in my app !!! See Question&Answers more detail:os...

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

0 votes

289 views

1 answer

ios - How is filters UIScrollView/UICollectionView in Apple's Photos app implemented that it opens so fast?

I'm not asking about the exact code but the overall idea. Here is my problem: I'm trying to create ... I would highly appreciate your 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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