Recent questions tagged IOS

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I have an app that is making use of UITextChecker class provided by Apple. This class has a following bug: If ... mine)? Or any other solution? 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 - MFMailComposeViewController without Mail app installed?

Now that apps like Apple's "Mail" app can be deleted in iOS 10, what will happen when a developer attempts to ... way to check for this case? 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 - Raw Depth map SDK for IPhone X

I did some search and found various examples, documentation on iPhone X Face ID and how it can be used for ... the texture of the object.) See Question&Answers more detail:os...

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

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290 views

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ios - ObjC protocol Implementation in Swift

Ok here is the big problem. I had a library written in ObjC(this). There we had a defined protocol. When ... "" } SOLUTION See accepted answer See Question&Answers more detail:os...

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

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238 views

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ios - Use ELCImagePickerController to pick video

I am trying to pick video by ELCImagePickerController from photo library, but when I print this NSLog(@"%@",[dict ... is not very good :') See Question&Answers more detail:os...

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

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678 views

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ios - UITabBar change background color of one UITabBarItem on iOS7

Can I change the background color of a specific UITabBarItem in a UITabBar? I know how to change all ... one item without subclassing? 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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304 views

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ios - Programmatically Added Constraint Not Working

I've been trying to add constraints programmatically to a view that I'm also adding programmatically to ... addConstraint(widthConstraint) } } See Question&Answers more detail:os...

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

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657 views

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ios - Error Domain=kCLErrorDomain Code=2 "The operation couldn’t be completed. (kCLErrorDomain error 2.)"

import UIKit import CoreLocation class ViewController: UIViewController, CLLocationManagerDelegate { @IBOutlet var latLabel: ... ? 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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ios - How to get VCF data with contact images using CNContactVCardSerialization dataWithContacts: method?

I'm using CNContacts and CNContactUI framework and picking a contact via this CNContactPickerViewController *contactPicker ... in contacts? 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 - `-costToNode:` Not Sent to GKGraphNode2D Subclass in GameplayKit

I have what is perhaps a stupid question about Apple's new GameplayKit. I am creating a 2D grid-based node ... another bug with this framework. See Question&Answers more detail:os...

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

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316 views

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ios - Auto layout how to hide 1 view in a view with 3 equal width views

Currently I have 3 views inside 1 view (which is pinned to leading edge and trailing edge of superview) ... using IBOutlets for constraints? See Question&Answers more detail:os...

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

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371 views

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ios - Change cell height by the content of the textView inside the cell

I have a Table View called todoTableView with cells that created by the user. Each cell has Text View. I ... bounds.size.height return cell } See Question&Answers more detail:os...

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

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751 views

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ios - No such module 'FBSDKCoreKit' XCODE 7.4

I am trying to add the Facebook login feature using FBSDKCoreKit and FBSDKLogin. When I try to import these ... solution to resolve the 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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301 views

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ios - “GooglePlus/GooglePlus.h file not found” when trying to build my project

I get the error GooglePlus/GooglePlus.h file not found when I try to build the project. I just added the Google ... I'm just getting this 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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500 views

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ios - viewDidDisappear not called when use presentViewController

I have an UIViewController having this method: - (void)viewWillDisappear:(BOOL)animated { [super viewWillDisappear:animated ... ) is not called. See Question&Answers more detail:os...

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

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559 views

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ios - React Native 0.40.0 : RCTBundleURLProvider.h” file not found - AppDelegate.m

I am getting following error with react native version 0.40.0 version React/RCTBundleURLProvider.h' file not found. ... able to get it working. See Question&Answers more detail:os...

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

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485 views

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ios - Firebase Cloud Messaging Cannot parse topic name

I'm trying to subscribe to a topic in my iOS app, but keep getting the error: <FIRMessaging/ ... correctly receiving notifications and all. See Question&Answers more detail:os...

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

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397 views

1 answer

ios - Carthage build failed Xcode 12 12A7209 building

Carthage File contents: github "SwiftyJSON/SwiftyJSON" Error: Build Failed Task failed with exit code 1: / ... /carthage-xcodebuild.1NVy7o.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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456 views

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ios - apns http2 api not returning status 410 after uninstalling app

Im using apns with http2 protocol for sending pushnotifications, the code i use is similar to this post: https:// ... the app in apns http2? See Question&Answers more detail:os...

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

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524 views

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ios - Change button title color in UIAlertView

How can I change the color of the UIAlertView button title. I want title Ok in red color. See Question&Answers more detail:os...

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

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386 views

1 answer

ios - Error when instantiating a UIFont in an text attributes dictionary

I'm trying to set the font of the UIBarButtonItem like so: let barButton = UIBarButtonItem.appearance() barButton. ... How can I resolve 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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532 views

1 answer

ios - Adaptive launch screen storyboards: is there a way to differentiate iPad orientations?

I'm investigating the use of a storyboard for launch images for my app. The app has always used a ... done completely through 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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635 views

1 answer

ios - How to rotate orientation programmatically in Swift?

I tried the next: UIDevice.currentDevice().setValue(UIInterfaceOrientation.Portrait.rawValue, forKey: "orientation") on ... I 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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317 views

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ios - Why am I getting a "Auto Layout still required after executing -layoutSubviews" error every time my app launches now?

Since I added the following code, every time my app opens this UITableViewController it crashes: self.noArticlesView = [ ... there's 0 rows. See Question&Answers more detail:os...

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

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262 views

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ios - arrow operator in objective-c

I have a question, here's the code: @interface MyFoo : NSObject { NSString *nameStr; } @end @implementation MyFoo ... etc. ? 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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246 views

1 answer

ios - Is there any way to check a app was installed or updated?

I have already ship one version of my application. for the further versions i need do some validation for ... first version already shipped). See Question&Answers more detail:os...

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

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222 views

1 answer

ios - App could not authenticate with Facebook and Firebase after conversion to swift 3 syntax

I've cleaned out my project to iron out all the errors. App seems to launch and the login page ... : launchOptions) return true } See Question&Answers more detail:os...

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

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436 views

1 answer

ios - Convert RGB image to 1 channel image (black/white)

How can I convert RGB image to 1 channel image (black/white) using ios5? Input image is usually a photo of a ... it to the 1 channel image. See Question&Answers more detail:os...

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

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