Recent questions tagged iOS

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ios - How to change the background color for a Form in SwiftUI?

I wanna change that "light gray" background color for a form, but .foregroundColor(Color.blue) and .background ... (Color.blue) } } 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 - missing required module 'SwiftShims' error generated by Xcode in project

I copied my project in a running state but the copied project doesn't work for me although the actual project ... this issue? 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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ios - iPhone simulator - how to detect when app is running on simulator (so can setup test data)?

Any sample code that would show me how to, in my iPhone application code: How to detect if the application has ... have 1 personal iPhone 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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ios - Why is Firebase based app not working in Iran?

I am working on an iOS project for my client from Iran using Firebase. When my client tries to open the Firebase ... from Iran can help me out. 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 - The bundle's Info.plist does not contain a CFBundleVersion key or its value is not a string

Xcode is build the project and when build is success, I get this message "The bundle's Info.plist does not contain a ... true/> </dict> </plist> 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 - WatchKit API for Force Touch / Digital Crown?

I'm very excited about the new user interaction possibilities introduced by the Apple Watch, among them, Force ... handlers for the events? 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 - objc_msgSend [__NSArrayM dealloc] crash report sometimes from Crashlytics

I recently received this app after updating to Crashlytics 3.0 Not sure if it comes from my code or something else ... 9 libdyld.dylib start + 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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ios - What's the best way to call an IBAction from with-in the code?

Say for instance I have an IBAction that is hooked up to a UIButton in interface builder. - (IBAction) ... way to call it properly? 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 UIAlertController button text colour in iOS9?

The question is similar to iOS 8 UIActivityViewController and UIAlertController button text color uses window's tintColor ... [UIColor black]; 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

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ios - Set contentMode of UIImageView

In Obj-C imageView.contentMode = UIViewContentModeScaleAspectFill; would set the contentMode. Why does imageView.contentMode ... work 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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491 views

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ios - How do I "hide" a UIRefreshControl?

Occasionally my table view won't be connected to a service to refresh, and in that case, I don't want the ... : but neither seems 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 - Raw value for enum case must be a literal

I have this enum: enum GestureDirection:UInt { case Up = 1 << 0 case Down = 1 << 1 case Left = 1 << 2 case ... get it. Swift 1.2, Xcode 6.3.2 See Question&Answers more detail:os...

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

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496 views

1 answer

ios - Change a SF Symbol size inside a UIButton

I am declaring a Button like this : let menuButton = UIButton() After that I am trying to change it's ... would be really 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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400 views

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ios - Tests stop working under xcode 8 TEST_HOST error

I want to start tests under Xcode 8 and it fail in the beginning. My error is: Could not determine ... need separate configuration for testing. See Question&Answers more detail:os...

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

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495 views

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ios - Can I programmatically scroll to a desired row in UIPickerView?

By default the first row is highlighted after initializing the UIPickerView. How do i highlight a ... particular row 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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369 views

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ios - Error compiling tweak in theos

I set a simple tweak using theos following the tutorial here. However when I run make with the headers from here, I get ... /theos//include/UIKit/UIKit2.h:448, from /opt/theos//inc...

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

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423 views

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ios - How do I convert a byte array to UIImage

I have a webservice which sends me back an array of bytes like this: <ax23:IMGBLOB>-119,80,78,71,13,10,26, ... } Any help I will appreciate :) See Question&Answers more detail:os...

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

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337 views

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ios - How to retrieve objects from firebase by key value

I'm new to firebase and I have such structure of my firebase project I want to get all objects, that "Interested" ... ) } } But I receive 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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477 views

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ios - ARKit – Drag a node along a specific axis (not on a plane)

I am trying to drag a node exactly where my finger is on the screen on the Y-axis. But I don't find any way ... = .ended { movedObject = 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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306 views

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ios - Hold NSOperationQueue until previous operation completes

I want to perform few operations and need to start the next operation only upon completion of the ... CommunicationUtil's delegate methods. See Question&Answers more detail:os...

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

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302 views

1 answer

ios - Programmatic language localisation without restart

I want to create an iPhone application with English and Arabic language. I checked the Internationalization document ... as per button pressed. See Question&Answers more detail:os...

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

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590 views

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ios - AVAudioEngine playing multi channel audio

Simple question. How do I play multi channel audio files (>2 channels) using AVAudioEngine so that I can hear ... hear first two channels... See Question&Answers more detail:os...

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

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395 views

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ios - How to fix my orientation issue with merging videos from front and back camera

I am merging multiply videos (implantation of pause button) and everything working fine except when ... .shouldOptimizeForNetworkUse = 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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524 views

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ios - Off Screen Rendering Metal

func mtkView(_ view: MTKView, drawableSizeWillChange size: CGSize) { print("current drawable size:(view. ... Suggestions please to optimize 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 - Uploading an image from a UIImage as a JPEG together with other POST-data

I am making a web service and an iOS app using this web service. The web service's API accepts a HTTP POST ... . Can anyone help me? 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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332 views

1 answer

ios - Creating a StopWatch in Iphone

I am trying to create a simple stopwatch. I referred to this website ( http://www.apptite.be/tutorial_ios_stopwatch ... . Appreciate 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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360 views

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ios - iPhone: How to convert a photo into a pencil drawing

I was wondering what the steps would be to convert a photo into a pencil drawing. People usually suggest to: invert ... of how to get started. See Question&Answers more detail:os...

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

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324 views

1 answer

ios - Passing parameters to a JSON web service in Objective C

I'm trying to call a webservice method and pass a parameter to it. Here is my webservice methods: [WebMethod] ... Thank you for your help! Teddy See Question&Answers more detail:os...

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

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