Recent questions tagged iOS

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ios - Convert Image to CVPixelBuffer for Machine Learning Swift

I am trying to get Apple's sample Core ML Models that were demoed at the 2017 WWDC to function correctly. I am ... of input: Image<RGB,224,224> 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 create Custom MKAnnotationView and custom annotation title and subtitle

I need to create above Annotation view on MKMapView. I am able to create the custom annotation view but on the tap ... the way to do this task. 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 - Custom Alert (UIAlertView) with swift

How can i create a custom alert with Swift? I try translating a guide from Objective c but loads a full screen ... .. what i'm doing wrong? 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 - iPhone GPS in background never resumes after pause

My application needs to track user location changes in the background and works fine as long as ... [locationManager startUpdatingLocation]; 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 - Change iPhone UISlider bar image

I'm using a UISlider in my app but I'd like to use a custom "look-and-feel" for it. I have changed the ... and min image but not the bar itself. 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 - UIButton fails to properly register touch in bottom region of iPhone screen

I have an app with many different buttons arranged in a calculator like, square / rectangular format. It is actually ... the buttons in any way. 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 - Switch cameras with avcapturesession

Using this tutorial here: http://www.musicalgeometry.com/?p=1297 I have created a custom overlay and image ... get it to switch properly? 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 - Can the iPhone SDK obtain the Wi-Fi SSID currently connected to?

In the iPhone SDK I don't see the same SCDynamicStore used on Mac OS X to get the SSID name that your wireless ... 't make it to the AppStore). 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 - Ordered map in Swift

Is there any built-in way to create an ordered map in Swift 2? Arrays [T] are sorted by the order that ... would most likely be more efficient. 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 - what does Error "Thread 1:EXC_BAD_INSTRUCTION (code=EXC_I386_INVOP, subcode=0x0)" mean?

I got this error: Thread 1:EXC_BAD_INSTRUCTION (code=EXC_I386_INVOP, subcode=0x0) How can I solve this? The code works ... .text = "(result)" } See Question&Answers more detail:os...

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

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373 views

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ios - How to use NSLocalizedString function with variables in Swift?

I'm trying to localize my app using NSLocalizedString. When I import the XLIFF file, most works like a charm but ... how to do that in Swift? 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 - Alamofire invalid value around character 0

Alamofire.request(.GET, "url").authenticate(user: "", password: "").responseJSON() { (request, response, ... i getting this error sometimes? 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

1 answer

ios - Cannot put a google maps GMSMapView in a subview of main main view?

I'm struggling with this problem! I want to add a google maps GMSMapView into a UIView that is only a portion of ... 't find a valid solution :( See Question&Answers more detail:os...

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

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466 views

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ios - SwiftUI NavigationLink loads destination view immediately, without clicking

With following code: struct HomeView: View { var body: some View { NavigationView { List(dataTypes) { dataType ... presses on that HomeViewRow? See Question&Answers more detail:os...

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

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259 views

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ios - Making a button persistent across all view controllers

I want to have a persistent button in the bottom right corner of my app. During all view transitions, the ... hacky solution -- any thoughts? See Question&Answers more detail:os...

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

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256 views

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ios - Static Library and Swift

So I'm working on an iOS project in Swift, and I wanted to create a Static library with some useful stuff in ... think ? Thank you in advance. See Question&Answers more detail:os...

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

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352 views

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ios - Change the width of Master in UISplitViewController

The iPad programming guide says that the splitView's left pane is fixed to 320 points. But 320 pixels for ... which speaks about fixed width. See Question&Answers more detail:os...

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

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746 views

1 answer

ios - How to detect when AVPlayer video ends playing?

I'am using AVPlayer for playing local video file (mp4) in Swift. Does anyone know how to detect when video finish with playing? 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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251 views

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ios - NSFetchedResultsController v.s. UILocalizedIndexedCollation

I am trying to use a FRC with mixed language data and want to have a section index. It seems like ... these two objects work together nicely. See Question&Answers more detail:os...

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

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449 views

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ios - Implementing HMAC and SHA1 encryption in swift

I am relatively new to Swift and i'm stuck encrypting using HMAC and SHA1. I Found the following answer https:/ ... . Any help would be amazing. See Question&Answers more detail:os...

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

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355 views

1 answer

ios - Deleting all the files in the iPhone sandbox (documents folder)?

Is there an easy way to delete all the files(images) I saved in the documents folder of the app? See Question&Answers more detail:os...

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

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219 views

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ios - Workaround on the threads limit in Grand Central Dispatch?

With Grand Central Dispatch, one can easily perform time consuming task on non-main thread, avoid blocking the main ... this? Thanks in advance! See Question&Answers more detail:os...

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

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267 views

1 answer

ios - Forward geocoding from the iPhone

Given that the mapkit doesn't provide forward geocoding functionality today, can anyone provide help on how I can ... code that would be great. See Question&Answers more detail:os...

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

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360 views

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ios - Issue with code autocompletion / syntax highlighting in Xcode 4.x

I am having a rather strange issue in Xcode on one of my projects. When I start to write my code, I ... this and could provide some solution? See Question&Answers more detail:os...

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

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463 views

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ios - didReceiveRemoteNotification not working in the background

I'm working on a big app with a huge chunk of legacy code. Currently - there's an implementation for: - ... . What could be the problem? See Question&Answers more detail:os...

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

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504 views

1 answer

ios - Command /usr/bin/codesign failed with exit code 1

I have the following error: Command /usr/bin/codesign failed with exit code 1 Here is what I already did for ... . Do you have any suggestions? See Question&Answers more detail:os...

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

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620 views

1 answer

ios - Real time blur effect for Navigation Bar

How to achieve the real time blurring effect for the navigation bar just like the Trailers app in iPhone. i.e ... achieve an effect like this:- See Question&Answers more detail:os...

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

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456 views

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ios - Swift 3.0 Error: Escaping closures can only capture inout parameters explicitly by value

I'm trying to update my project to Swift 3.0 but I have some difficulties. I'm getting next error: "Escaping ... someone help me to fix that? See Question&Answers more detail:os...

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

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