Recent questions tagged iOS

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ios - Core Animation - modify animation property

I have animation func startRotate360() { let rotation : CABasicAnimation = CABasicAnimation(keyPath: "transform. ... writable properties ? 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 send array in params using Alamofire multipart

I am using Alamofire for uploading image and file to the server. But I am facing issue to send an array in ... )") onError?(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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796 views

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ios - Rotate Portrait to Landscape in pdfreader in ios6 and ios7

I am developing an application that read pdf in landscape mode. I write the following code and its works ... set Portrait Mode to Landscape See Question&Answers more detail:os...

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

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768 views

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ios - UIImagePickerController Overlay Buttons Not Firing

I have a UIImagePickerController of type camera when the user lands on a page. I have put a custom camera overlay on ... { NSLog(@"outlet"); } 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 - Getting data from a textfield inside a prototype uicollectionviewcell

I have a UICollectionViewCell which is prototype cell, I have a textfield in it, which by default present in all of ... png"]]; 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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832 views

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ios - Retain Cycle (Strong reference) fix for custom uitextfield?

I have a custom text field class, "loginTextFields". I recently noticed that The view controllers in which ... self.removeFromSuperview() } See Question&Answers more detail:os...

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

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805 views

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ios - how to display nested array data inside uitableview properly with Multiple level of Sections

I have the following json data { "Display_Selected List": [ { "product_name": "Product1", "items": [ { " ... ? Any reference would be helpful. See Question&Answers more detail:os...

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

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625 views

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ios - what does @property actually do behind the scene..with usage of self. and self-> and _ underscore

I'm still struggling with the syntax errors in @implementation section. So, I want to understand the difference ... wrong please correct me. See Question&Answers more detail:os...

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

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724 views

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ios - Restore Purchase : Non-Consumable

I have completed a small app where I have a non-consumable purchase option. It is on the App Store. The ... others facing my similar situation. See Question&Answers more detail:os...

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

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711 views

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ios - Why can't you set the cell.selectionStyle = UITableViewCellSelectionStyleBlue?

I have seen the following questions, but non explain that while you can simply set cell.SelectedStyle to ... UITableView blue highlight 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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816 views

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ios - splash screen with activityindicator

I want to add splash screen in background and acttivity indicator in front...For that aI add following code in ... not appear.What wrong with me See Question&Answers more detail:os...

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

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722 views

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ios - Not able to scan Through CBCentral Manager with service ID for iBecon Signal

Working on iBecon signal using Core Bluetooth i am able to search with CBCentralManager scan optionn nil :- Shared. ... i am doing wrong 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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781 views

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ios - Strange EXC_BAD_ACCESS SpriteKit removeSubsprite crash

I am new to SpriteKit and just built my first game. Everything was working great until iOS 7.1. Now, after a few ... I updated to iOS 7.1 SDK. See Question&Answers more detail:os...

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

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984 views

1 answer

ios - Swift .writeToFile does not update JSON file in mainBundle

I am trying a simple dictionary retrieve, update key value and write back to file. For some reason the writeToFile ... to 1? 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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768 views

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ios - Why can I send messages to a deallocated instance of NSArray?

I just noticed a surprising behavior of NSArray, that's why I'm posting this question. I just added a ... crashing and NSMutableArray crashes ? See Question&Answers more detail:os...

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

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822 views

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ios - Class is not key value coding-compliant for the key staticTexts

I have this error: XCTAssertTrue failed: throwing "[<XCElementSnapshot 0x7fea978b1a10> valueForUndefinedKey:]: this class is ... of 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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933 views

1 answer

ios - Appium, Instruments crashed on startup

When I updated Xcode from 6.4 to 7.2 my Appium UI Automation stopped working, with instruments crashing. Appium: ... files ... 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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755 views

1 answer

ios - How to customize numeric input for a UITextField?

I have a UITextField (that represents a tip value) in my Storyboard that starts out as $0.00. If the user ... to a UITextField in this manner? See Question&Answers more detail:os...

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

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1.2k views

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ios - swiftui subview reappear after click the back button and update state data

Very strange behavior. Click the back button on the subpage (Subview) to return to the main page (ContentView). ... View { ContentView() } } See Question&Answers more detail:os...

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

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807 views

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ios - Playing videos in WatchKit app

I've read some posts, but I don't find the answer I need: is it possible to play a video file or a video from a URL in a WatchKit app? See Question&Answers more detail:os...

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

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741 views

1 answer

ios - UITableView delete button not appearing

When I press the edit button I get the round delete icon to the left of the item. When I press the delete ... all work...just no delete button. See Question&Answers more detail:os...

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

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759 views

1 answer

ios - Pass array by reference between viewcontrollers in swift

When using Objective-C I would pass a NSMutableArray from one view controller VC_A to another VC_B by simply assigning ... to handle this now? See Question&Answers more detail:os...

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

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669 views

1 answer

ios - How to speed up a Sprite Kit game after every additional 50 points

I am making a 2D game with Sprite Kit and I need to add a method to speed up the game after ... game speeding up without points increments. See Question&Answers more detail:os...

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

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927 views

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ios - Updating AVPlayerItem video composition

Me and my team are stuck on an issue for a few days now. We have AVPlayer which plays AVPlayerItem with a ... Best Regards, Roi and the team See Question&Answers more detail:os...

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

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729 views

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ios - coredata - deliver / setup default data

I use coreData in my iOS App. It's possible, that the user Add, Delete Data into the Database. I have to ... I push the App to the AppStore? See Question&Answers more detail:os...

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

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944 views

1 answer

ios - Object hierarchy is causing a memory leak in Swift

Ive been able to distill a problem seen in an app I've written, and have reproduced it in a simple ... /s/ooqh77lhpzbvpv1/ArcTest.zip?dl=0 See Question&Answers more detail:os...

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

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823 views

1 answer

ios - Core Data: Predicate for first element in orderd relationship

I have this to-many relationship which contains at least one element: Appointment <<------>> Invitee ... be retrievable. Any advice? See Question&Answers more detail:os...

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

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1.3k views

1 answer

ios - How to fill UITableView with a data from Dictionary. Swift

Please help me with filling table view cells with data from a dictionary. For instance, I have cell like so: ... do this? 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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