Recent questions tagged iOS

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I've started testing Firebase and I can't figure out one thing about indexing. I'm creating a structure ... change the tree structure? 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 Do You Obtain the "Purchase Date" or "Date Added" from MPMediaItems in iPod Library

As users download new songs into their iPod Music library from the iTunes Store, I would like to programmatically list ... or how to derive 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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525 views

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ios - Parse.com - saveAll on PFObject does it account for 1 API call?

I have an IOS app and I want to make sure I minimally use the API request to parse.com due to the ... I save each pfObject separately. 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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678 views

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ios - Spritekit scale full game to iPad

So I'm developing a game on Xcode using Spritekit, for the iPhone. And it looks all the same and great on ... sizes and positions... 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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573 views

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ios - Can google's firebase work with a java desktop application?

I am developing an iOS app using firebase, but I also want to create a java desktop application that ... that Google just recently announced. See Question&Answers more detail:os...

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

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922 views

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ios - Converting CLLocationCoordinate2D to a String that can be stored

I'm trying to save the coordinates of a user while in one ViewController so that it can be used to create an ... into a value of type String? See Question&Answers more detail:os...

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

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637 views

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ios - Make a UIViewPropertyAnimator never complete

Problem Description I have a UIViewPropertyAnimator managing a blur, among other things, and I'd like to use it just for ... like 0.001...0.999 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 - Quit app when pressing home

I my testing, when I exit (by pressing the home button) my app, it still is "running" in the ... on this issue is greatly appreciated! See Question&Answers more detail:os...

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

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665 views

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ios - When I run iPhone app on iPad the screen resolution is wrong. How to fix this?

I encountered with a strange problem. I develop an application which is targeting iPhone device family with Retina 3.5 ... . Hope for the 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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636 views

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ios - Gender detection of the speaker from wave data of the audio

I would like to add a gender detection capability to a news video translator app I'm working on, so that the ... CMU Sphinx for iOS platform) ? See Question&Answers more detail:os...

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

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683 views

1 answer

ios - Scan qrcode and barcode from camera and image which picked from image library in swift

I'm a newbie with Ios. i'm learning swift and overlooked object c. Currently, i'm writing an demo with swift ... and ios for 3 weeks). 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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622 views

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ios - Could not find an overload for “init” that accepts the supplied arguments in Swift

I am trying to figure out how to translate this in Swift and I am also having this error: "Could not find ... UIImage(named: "example2.png")] See Question&Answers more detail:os...

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

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516 views

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ios - How to prevent from scrolling UITableView up when NSFetchedResultsController add new record?

My UITableView is scrolling up once I add a new comment to CoreData. NSFetchedResultsController knows about it, ... connected to my 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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662 views

1 answer

ios - TabView (SwiftUI): Respond onTab on an already active tabItem

I have a ContentView.swift which contains a TabView. View1 has a NavigationView in it with some childViews. View2 is just ... ("View2") }.tag(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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837 views

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ios - Swift fatal error: array index out of range

I'm making a to-do list app but when I try to delete something from my list, xcode is giving ... eventList.removeAtIndex(indexPath.row)as 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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613 views

1 answer

ios - When exactly do things get removed from urlcache's memory and disk?

let memoryCapacity = 200 * 1024 * 1024 let diskCapacity = 1 * 1024 * 1024 let cache = URLCache(memoryCapacity: ... stored in disk get removed? See Question&Answers more detail:os...

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

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748 views

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ios - Gesture recognition in Apple Watch (WatchKit)

I'm looking for how to detect gestures in an Apple Watch app, via the WatchKit SDK. In iOS we can use some ... them when the OS receives them? See Question&Answers more detail:os...

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

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645 views

1 answer

ios - Set button type

I am creating a button programatically and I would like to know how to set that button's UIButtonType ... .buttonType = UIButtonType.ContactAdd See Question&Answers more detail:os...

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

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569 views

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ios - MKMapView MKPointAnnotation tap event not called

I am using a MKMapView (delegate is set correctly) with a MKPointAnnotation. The annotations are generated in this ... What am I 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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550 views

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ios - Popover size with UINavigationController in Storyboard

I have created an iPad app containing a popover view embedded in a navigation controller. I like ... navigation controller using 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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576 views

1 answer

ios - Xcode 4 - One Click Build to Multiple Devices?

In Xcode 4 is it possible to somehow setup so that with one click of the 'Run' button in the top left ... time. Any help appreciated, 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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613 views

1 answer

ios - Swift UIWebView not loading http sites

I created a web view controller and it loads https sites(ex: , ) but not http, non ssl secured sites(ex: http: ... How would i need 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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633 views

1 answer

ios - Find UIGestureRecognizer action (selector) name and target

I'm trying to find which action is triggered by a UIGestureRecognizer on which target. Unfortunately ... here stackOverFlow Question 20066315 See Question&Answers more detail:os...

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

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517 views

1 answer

ios - Autolayout crash when applying transform: Assertion failure in -[layoutSublayersOfLayer:]

I have a custom view that display a UILabel in the bottom right corner. The view is setup in a method called ... . Anyone that can helps 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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572 views

1 answer

ios - ALAssetsLibrary seems to return wrong number of my photos

When I use ALAssetsLibrary to get local photos it works fine. But after I delete some photos with the 'Photos ... my application does OK again. See Question&Answers more detail:os...

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

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606 views

1 answer

ios - how to replace/customize back button image in storyboard navigationcontroller

I want to replace the text in the back button with a custom image. How can I do that in swift code? I don ... :.Plain, target:self, action:nil); See Question&Answers more detail:os...

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

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686 views

1 answer

ios - Move a node to finger using Swift + SpriteKit

UPDATE: I have solved the problem, and figured out a more simplified way to do this then the answer provided ... looking forward to a response! See Question&Answers more detail:os...

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

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624 views

1 answer

ios - This class is not key value coding-compliant (with storyboard)

I'm just getting started in iOS development with Xamarin and seem to have hit a road block. I'm trying to create ... but I see the same result. See Question&Answers more detail:os...

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

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