Recent questions tagged IOS

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ios - 'filenames are used to distinguish private declarations of the same name' error

I am getting this error on generating an NSManagedObject in Xcode 8.1 in Swift. :0: error: filename " ... s/xwyzhshktb2hqe7/demo2.zip?dl=0 See Question&Answers more detail:os...

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

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ios - Use Hex color in SwiftUI

in UIKit we could use an Extension to set hex color to almost everything. https://www.hackingwithswift.com/example ... red:green:blue:opacity:') See Question&Answers more detail:os...

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

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277 views

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ios - How to set a default Value of a UIPickerView

I have a problem with my UIPickerView. I have 3 values in it EU AP and NA. When I start the app EU seems ... ; NSLog(@"%@", selectedRegion); } 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 - Xcode 10.2 Update issue Build system error -1: Unable to load contents of file list: input/output xcfilelist

After upgrading to Xcode 10.2 I am getting 2 errors :-1: Unable to load contents of file list: 'xxxxx/ ... still getting the same build error See Question&Answers more detail:os...

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

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226 views

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ios - what is the usage of "~>" in cocoapods

I want to know what the "~>" is used for,cause I find they are the same below: pod 'AFNetworking','~> 2.0.3' pod 'AFNetworking','2.0.3' See Question&Answers more detail:os...

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

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221 views

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ios - 'Framework not found' in Xcode

I know this has been asked a couple of times. I followed instructions from these ones: Adding frameworks to project ... it still doesn't work. See Question&Answers more detail:os...

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

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ios - Xcode: "Scene is unreachable due to lack of entry points" but can't find it

Xcode 4.5.2 gives me the following warning: Unsupported Configuration Scene is unreachable due to lack of entry ... + scenes). Any suggestions? See Question&Answers more detail:os...

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

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359 views

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ios - How to set the title of a Navigation Bar programmatically?

I have a Navigation Bar in a view, and I want to change its Navigation Item title programmatically. How is this 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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382 views

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ios - What does warning "Mapping architecture arm64 to x86_64" mean?

After migrating my framework to Xcode 10 beta (10L176w) I started to get warnings like: Mapping architecture ... are these warnings about? See Question&Answers more detail:os...

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

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455 views

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ios - How do I know all my tasks in Grand Central Dispatch finished?

I need to send multiple tasks to Grand Central Dispatch to run. Some tasks will finish first, while some will ... finished? Any smarter method? 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

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ios - Mixing static and dynamic sections in a grouped table view

I need a grouped UITableView similar to the one for Twitter accounts in Settings app: That is, a sort of form ... and memory. Thanks in advance See Question&Answers more detail:os...

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

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582 views

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ios - Populating TableView with multiple sections and multiple dictionary in an array in Swift

I have a 3 category which I was using as a section. In that section I have to populate data which is in ... If anyone can answer. Thank you! See Question&Answers more detail:os...

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

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203 views

1 answer

ios - iCloud + CoreData - how to avoid pre-filled data duplication?

I have a problem with an iCloud shoebox application and hope some-one can help me (I've spent many ... iCloud setup do synchronize properly. 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

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ios - JavaScript DOM changes in touchmove delayed until scroll ends on mobile Safari

In mobile safari, in the course of handling touchmove for an element, I change the className of that element. ... such as innerHTML and style. See Question&Answers more detail:os...

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

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381 views

1 answer

ios - How to implement a volume key shutter for iPhone?

I want to implement the same behavior with the native camera of iOS5: press the volume + button to take a ... , the system volume will change. See Question&Answers more detail:os...

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

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415 views

1 answer

ios - iPhone - How to create a custom album and give custom names to photos in camera roll programmatically?

I am developing an iPhone photo application, so i need to create a separate album with a name "My Album" in ... directory. 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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251 views

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ios - Detect app crashed during load / last time it was run?

I would like for my app to reset to standard settings if it crashed during startup. Preferably also if it ... since been fixed. Suggestions? See Question&Answers more detail:os...

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

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296 views

1 answer

ios - How to adjust the height of a textview to his content in SWIFT?

In my view controller, I have an UITextView. This textview is filled with a string. The ... .textContainer.exclusionPaths=[exclusionPathBack] 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 - UIColor return wrong values for dark mode colors

I have a custom UITextField subclass which changes its border color when typing something in it. I'm listening ... something in the text field. See Question&Answers more detail:os...

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

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312 views

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ios - Change app Version with only IPA file provided (no xcode)

I have an app that was developed for my company. Unfortunately it needs to be resigned (i know how do this part ... app. Thanks for any 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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246 views

1 answer

ios - NSCoding VS Core data

I've been searching for an article that explains NSCoding (NSKeyedArchiver...) advantages and disadvantages over ... between the MAIN features? 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 - Align button image to right edge of UIButton

There are plenty of threads about aligning a button image according to the title text, but I can't find anything ... be done in the Storyboard? See Question&Answers more detail:os...

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

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434 views

1 answer

ios - UITextField Only Top And Bottom Border

I currently have a regular border. I would like to only have a top and bottom border. How do I accomplish this ... . From, An iOS First Timer See Question&Answers more detail:os...

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

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410 views

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ios - How to cache using NSURLSession and NSURLCache. Not working

I have a test app setup and it successfully downloads content from the network even if the user switches apps ... cache on the 2nd request? See Question&Answers more detail:os...

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

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221 views

1 answer

ios - Native Facebook Login stopped working after SDK update to 3.14

Update: Somehow the behaviour seems to have changed. I don't get the error message any more but the native ... "changed" permissions? Regards K 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

1 answer

ios - How to import private framework headers in a Swift framework?

I have an Objective-C framework (framework A) that exposes some public and some private headers. The public ... header for the private headers? See Question&Answers more detail:os...

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

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349 views

1 answer

ios - How to expand UICollectionView contentSize when paging enable?

I'm making a simple UICollectionView with a paging mechanism enabled, and everything works fine. Though, when scroll ... * (cellFrame + spacing) See Question&Answers more detail:os...

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

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178 views

1 answer

ios - Objective C - Pass by value and pass by reference

First of all, sorry for this simple question. But I need to understand what is happening. I thought the output ... happening and how to fix 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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