Recent questions tagged IOS

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ios - Swift, touch down on UIButton and touch up on another

I'm making a calculator app that has several UIButtons for input of digits etc. I want the user to be ... Any help would be much 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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ios - Conditional Compilation - Check Scheme

In a Swift project before I've been able to perform a simple compiler check to see which scheme is running, ... allow this kind of behaviour? 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 - Using KVO to observe changes to a property on an object inside a collection in Objective-C

I have a Core Data object (AGroup) with a to-many relationship to a collection of other Core Data objects ... due to additional limitations/etc? 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 - Objective-C: How to make a Framework?

I'm new to Objective-C but has a lot experience with Java and .NET. I'm trying to add EGOPhotoViewer to ... invocation) Does anybody know why? 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 - onFocusChange not triggered in SwiftUI tvOS

I am trying to set onFocusChange and click action function on a view. But onFocusChange is never called. ScrollView ... click action doesn't. See Question&Answers more detail:os...

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

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721 views

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ios - How to display dynamically data from Server in CollectionViewCell in TableViewCell with swift3?

I got my json link data from TableViewCell , and then retrieve that data from server and display in collectionView ... 't display related data. 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 share multiple post on friend's wall in objective C

I'm using facebook sdk to post on friend's wall. I am able to post it but when i select multiple friends in FBWebDialog ... }]; }]; } }]; } 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 - auto adjust custom UITableViewCell and Label in it to the text

I have a custom UITableViewCell that only has one Label in it. I also set number of lines in Interface Builder ... be fitting for the label. 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 add string labels( xAxis labels) to horizontal bar in Charts framework

I am using charts framework for drawing charts. I need to add some strings in left of every bars. In my ... rectangle. I need these labels. See Question&Answers more detail:os...

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

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947 views

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ios - MWFeedParser - RSS with images

I have problem, I'm using MWFeedParser Rss reader in my iOS aplication and it works well, but I need ... of that MWFeedParser project: GitHub See Question&Answers more detail:os...

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

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892 views

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ios - Is it possible to create mutable versions of objects read in from a plist

I'm reading into my application a plist which at the top level is an array. It's simple enough to make ... are read in as mutable versions? See Question&Answers more detail:os...

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

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718 views

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ios - Rendering multiple textures at different points on screen without using point sprites

I'm building an ios drawing app and am having a hard time how to draw paint textures on the screen at ... Any pointers would be helpful. Kunal See Question&Answers more detail:os...

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

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918 views

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ios - Changing label text of second ViewController upon clicking button in first ViewController

I'm new to Swift and to iOS Development. I currently have 2 ViewControllers, a button in the first and a ... protected ? Thanks 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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786 views

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ios - CoreData: Get notified when NSManagedObject is changed without keeping reference to NSManagedObject

I want to observe changes of particular NSManagedObject and update UI accordingly. I don't want to keep ... changed: Optional("Alexander") See Question&Answers more detail:os...

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

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860 views

1 answer

ios - Custom UITableViewCell delegate pattern in Swift

I have a weird problem in a Swift + Objective-C problem. I'm implementing a UITableView and a custom cell with a ... But do I need it? 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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838 views

1 answer

ios - Title for selected segment in UISegmentedControl disappears when taking a screenshot programmatically

I have a UISegmentedControl added to a UIToolbar: UIToolbar *toolbar = [[UIToolbar alloc] initWithFrame:toolbarFrame] ... to start looking? See Question&Answers more detail:os...

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

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875 views

1 answer

ios - Xcode 7 beta 4 - Crashes on UI recording

While trying to do UI recording for my UI tests, the app crashed after 1 event that was not recorded. Looking ... someone knows a fix for 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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929 views

1 answer

ios - Replacing multiple characters in NSString by multiple other characters using a dictionary

I would like to replace some characters in my string, by other characters, using a dictionary. For instance, every ... to improve it. Thank you. 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

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ios - New Command 2 Apple Push Notification Not sending multiple alerts

I am trying to implement the new 'Command 2' push notification in Java and cannot have it push multiple alerts. First ... s1, (byte) s2 }; } 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

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ios - unexpectedly found nil while unwrapping an Optional value keyboardWillShow

I have this code below which runs when the keyboardWillShowNotification is called: func keyboardWillShow(_ notification: ... : 0.25]) See Question&Answers more detail:os...

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

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961 views

1 answer

ios - How to play youtube video in UIWebView muted?

I am using UIWebView to play an embedded youtube video, on iOS 9 for iphone. However, due to a known issue, the ... '> </body></html> 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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736 views

1 answer

ios - how can I pass data from one container to another, both embedded in the same uiviewcontroller in swift?

I have a parent UIViewController and it has two different view containers - each of them has embedded UIViewController ... way for doing so? See Question&Answers more detail:os...

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

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871 views

1 answer

ios - Background task when apns received

After reading APNS documentation, I have implemented apns into my app. Everything works fine, but I have a question. ... do it? Thanks so much! See Question&Answers more detail:os...

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

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859 views

1 answer

ios - Dictionary is not convertible to Void

Hi guys I've been searching the net without much luck but I'm trying to get around Alamofires asynchronous ... would be 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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970 views

1 answer

ios - Cannot convert value of type 'NSObject -> () -> PostFeed' to expected argument type 'AnyObject?'

I'm adding a UISwitch in the following way: let anonSwitch : UISwitch = { let mySwitch = UISwitch() ... and I never encounter this error See Question&Answers more detail:os...

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

0 votes

759 views

1 answer

ios - Unarchived Node doesn't appear when added to parent in SpriteKit

Previously I was questioning if i could use the Scene editor to create complex SKSpriteNodes vs just using it to ... adding it with no luck See Question&Answers more detail:os...

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

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844 views

1 answer

ios - Error ("'()' is not identical to 'UInt8'") writing NSData bytes to NSOutputStream using the write function in Swift

I'm trying to build an asynchronous file download in Swift based on the Erica Sadun's method. But I ... self.downloadProgressPercentage)%") } } See Question&Answers more detail:os...

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

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871 views

1 answer

ios - NSDictionary with NSNumber to NSString mapping is non-property-list object

Following code: [[NSUserDefaults standardUserDefaults] setObject:photoIdToPath forKey:@"photo_id_to_path"]; gives me the ... Programming Guide. See Question&Answers more detail:os...

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

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