Recent questions tagged iOS

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Can you inherit enum in Swift? What are the rules that one should be aware of with regards to enum ... conform to protocol 'RawRepresentable' 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 - APNS notifications not reaching devices enrolled in Apple MDM

Apple MDM is used. It is MDM using APNs. The topic of mobileconfig is the same as the thing of Subject of APSP- ... is not reached. Why is it? 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 - UITableViewCell Subclass with XIB Swift

I have a UITableViewCell subclass NameInput that connects to an xib with a custom init method. class NameInput: ... with a reuse identifier? 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 - Run a Swift 2.0 app forever in background to update location to server

I have written the below code that has a timer that calls a callback function every minute. When the app goes to the ... repeats: true) }) } } 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 - Get name of AirPlay device using AVPlayer

When AirPlay is enabled in a MPMoviePlayerController, it displays a text "This video is playing on device name " ... get the device name? 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 - Error: UIView's window is not equal to another view's window

I am a beginner programmer learning swift. First post here. Extra info but maybe unnecessary In this app I ... -CF/tree/master/TileGame 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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ios - Swift 3 ObjC Optional Protocol Method Not Called in Subclass

I have the following class hierarchy: class ScrollableViewController: UIViewController, UITableViewDelegate { // ... } ... (_:heightForRowAt:) 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 detect call incoming programmatically

I need my app to send a notification when there is a call (incoming call, connected, call ended) I registered ... how to use core telephony? 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 - Correct way for getting current date and time for a given place / timezone and compare it with another date/time in the same place

I'm searching the correct way to get the actual date and time for a given place / timezone, and being able ... connect to a date/time server. 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 make UIImageView automatically resize to the size of the image loaded

I have put an UIImageView control on my view with IB. The size of the control is just something I decided ... any explanation to this ? 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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585 views

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ios - Swift "Bridging-Header.h" file not allowing me to instantiate objective-c classes in .swift files

When X-code tries to create a bridging header automatically, it crashes every single time, so I followed the ... know how to fix it? 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 - Getting button action : UICollectionView Cell

I have created a UICollectionViewCell by nib and added a button inside it and created a .h and .m files added ... can i get the button action? See Question&Answers more detail:os...

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

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281 views

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ios - Error itms-90035

App passes validation On upload getting error Error itms-90035 "Invalid Signature. Code object is not signed at ... but dont address my issue See Question&Answers more detail:os...

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

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428 views

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ios - "'CDVPlugin.h' file not found" in Cordova as component (Cleaver)

I added Cordova as a component to my iOS project. Adding a custom plugin leads to the error, despite that the ... " #endif What am I missing? 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 - @import "Unexpected '@' in program"

I updated project to Xcode 5 and enabled modules in build settings. However, I see compiler error Unexpected '@' ... else that should be done? See Question&Answers more detail:os...

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

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285 views

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ios Changing UIScrollView scrollbar color to different colors

How can we change color of UIScrollview's scroll indicator to something like blue, green etc. I know we can ... then these colors. Many 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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220 views

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ios - Installation Failed "Invalid argument" when trying to run Today application extension

I added a vanilla Today Application Extension and run with the new scheme created by XCode. After it finishes building ... so far. Please help! See Question&Answers more detail:os...

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

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215 views

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ios - Loading a resource (e.g. storyboard) in a Swift framework

I'm trying to make a framework that will bundle a storyboard. I have checked, and the created .framework includes my . ... or tell me to do it. 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 - Perform push segue after an unwind segue

I am working on a camera app where the camera views are shown modally. After I am done with cropping. I ... to change the storyboard structure. See Question&Answers more detail:os...

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

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162 views

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ios - How to reference UITableViewController from a UITableViewCell class?

I have the following: UITableViewController UITableView Custom UITableViewCell subclass I used a .xib file for ... the UITableViewCell class? See Question&Answers more detail:os...

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

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265 views

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ios - Setting maximum number of characters of `UITextView ` and `UITextField `

I'd like to set a maximum number of characters allowed to be typed both in a UITextView and a UITextField. ... 's reference, Twitter Style.) See Question&Answers more detail:os...

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

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222 views

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ios - swift failed with exit code 1 while compiling in Xcode - possibly related to Bridging-Headers

I have an Obj-C Project I'm trying to migrate to Swift. I did succeed with various classes but recently ran ... figure out what is going on? See Question&Answers more detail:os...

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

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285 views

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ios - Swift 3 - dynamic vs @objc

What's the difference between marking a method as @objc vs dynamic, when would you do one vs the other? ... marked with the objc attribute. 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

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ios - Why do I get a "Variable used before being initialized" error on the line that I initialise the variable in Swift?

I'm struggling to understand why I'm getting this compiler error in an iOS project using Swift. If I ... is it an unnecessary restriction? See Question&Answers more detail:os...

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

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200 views

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ios - Transition animation not working in SwiftUI

I'm trying to create a really simple transition animation that shows/hides a message in the center of the ... below taken from the simulator. See Question&Answers more detail:os...

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

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295 views

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ios - What is the difference between a Development Provisioning Profile and an Ad Hoc Provisioning Profile?

What is the difference between a development provisioning profile and an ad hoc provisioning profile? Couldn't we ... everything but the store? See Question&Answers more detail:os...

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

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194 views

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ios - What exactly does `pod repo update` do?

I'm following an internet tutorial on Firebase and as part of it, I had to do some work on the command line ... update even do for that matter? See Question&Answers more detail:os...

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

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308 views

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ios - Swift: Testing optionals for nil

I'm using Xcode 6 Beta 4. I have this weird situation where I cannot figure out how to appropriately test ... optionals that I am missing? See Question&Answers more detail:os...

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

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