Recent questions tagged IOS

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ios - Custom segue animation (navigation animation) in SwiftUI

In SwiftUI we use NavigationView and NavigationLink views to perform navigations (what we used to call segue in ... ), but nothing changes. 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 - AVAssetExportSession export fails non-deterministically with error: "Operation Stopped, NSLocalizedFailureReason=The video could not be composed."

We add subtitles to a video recorded by the user, but the export by our AVAssetExportSession object fails non- ... helps debug the problem? 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 - Check on UIAlertController TextField for enabling the button

I have an AlertController with a text field and two button: CANCEL and SAVE. This is the code: @IBAction func ... can explain me what to do? 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 - NSURLSession causing EXC_BAD_ACCESS

I've noticed that implementing NSURLSessionDataDelegate and starting a task will very occasionally throw an EXC_BAD_ACCESS. The ... i += 1 } 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 - How can I modify OTHER_LDFLAGS via CocoaPods post-install hook?

My project uses CocoaPods and also custom xcconfig files. Until now, this hasn't caused any problems: I've ... the CocoaPods post-install hook? 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 getting "target specifies product type 'com.apple.product-type.bundle.unit-test', but there's no such product type for the 'iphoneos' platform"

When running my project in XCode, my tests gives this error: target specifies product type 'com.apple.product-type. ... know how to fix 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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ios - Add transparent space around a UIImage

Lets say we have an image of 600X400 pixel and we want to end up with an new image of 1000x1000 pixel which ... can I achieve that in code? 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 - How do I make my iOS7 UITableViewController NOT appear under the top status bar?

My root controller is a TabBarController (tabbed application). One of the tabs, is a UITableViewController. When I ... you're trying to hard" 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 - APNS Firebase Notification failed to fetch token

For Swift3 / iOS10 see this link: ios10, Swift 3 and Firebase Push Notifications (FCM) I'm trying to use the ... . print("%@", userInfo) } 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 - How to correct Tab Bar height issue on iPhone X

I'm having an issue with my app when testing for iPhone X. I'm not sure how to adjust this issue, as ... an issue on the iPhone X simulator. 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 - Leaving inputAccessoryView visible after keyboard is dismissed

What I'm trying to do is to create something similar to the "find on page" search function in Safari on ... when the keyboard gets dismissed. 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 - UINavigationController Interactive Pop Gesture Not Working?

So I have a navigation controller in my built for iOS 7 app. The titleView is visible, as well as the back ... could cause it not to 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 - How to change UITabBar Selection color

I need to change the selection color of UITabBar from default blue to red. How do we 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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285 views

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ios - UIScrollView Zoom Does Not Work With Autolayout

Zooming with UIScrollView using a strictly autolayout environment does not seem to work. This is especially frustrating ... there? Please 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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ios - How to use UIStepper

I am trying to work with UIStepper to increment or decrement an integer, but both "-" and "+" increase the integer! ... :@"%d",integer]]; } } 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-beta 8. Can't create core data

I have been trying to add core data. And every time I got the same error: error: filename "EntityName + ... . What I am doing 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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ios - UISearchBar cancel button color?

When I drop a UISearchBar into my view inside Interface Builder, and change its style to Black Opaque, the ... submitting the app to Apple. See Question&Answers more detail:os...

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

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408 views

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ios - Intercepting pan gestures over a UIScrollView breaks scrolling

I have a vertically-scrolling UIScrollView. I want to also handle horizontal pans on it, while allowing ... _scrollView.panGestureRecognizer); } 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 - Difference between Generics and AnyObject in Swift

Consider this myFilter function that takes in a generic argument and filters the array based on the predicate. This ... in the latter example? 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 - What is the difference between -nativeScale and -scale on UIScreen in iOS8+?

In sample logs posted in this question, the results are identical. Does anyone know if there is meant to ... between natural and native? See Question&Answers more detail:os...

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

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433 views

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ios - Class X is implemented in both <framework> and <application> one of the two will be used, which one is undefined

I'm getting this warning: Class X is implemented in both <framework> and <application> one of the two will be ... me right now. Thanks, Indigo See Question&Answers more detail:os...

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

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510 views

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ios - Detect when UITableView has scrolled to the bottom

Is the following post still the accepted way of detecting when an instance of UITableView has scrolled to the bottom ... the bottom 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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728 views

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ios - Xcode Interface Builder is showing "No selection" for all files

No matter what I've got selected in Interface Builder, the Inspector did apparently not register the selection and ... s just this project... 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 - Swift: Get all subviews of a specific type and add to an array

I have a custom class of buttons in a UIView that I'd like to add to an array so that they're easily accessible ... add it to an array in Swift? 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 simulator - Destination toolbar disappeared on XCode 6.4

Today in the morning I tried to compile my project to run in my device and I found the destination toolbar ... simulator) and XCode 6.4. See Question&Answers more detail:os...

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

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398 views

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ios - Scale UIView and all its children

I have an UIView with around 50 UIButtons. All button positions were given in pixels, relative to the left ... it can be done programmatically. See Question&Answers more detail:os...

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

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408 views

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ios - Why/when do we have to call super.ViewDidLoad?

Everyone tells me "Use super.viewDidLoad() because it's just like that" or "I've been doing it always like ... or are there any hidden effects? See Question&Answers more detail:os...

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

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716 views

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ios - Missing Provisioning Profile :Apps must contain a provisioning profile in a file named embedded.mobileprovision

App is already submitted to App Store from xcode-9 and now I have to update new version.But now ... I have downloaded provisioning certificated. See Question&Answers more detail:os...

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

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