Recent questions tagged iOS

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ios - NSDate beginning of day and end of day

-(NSDate *)beginningOfDay:(NSDate *)date { NSCalendar *cal = [NSCalendar currentCalendar]; NSDateComponents *components ... endOfDay:Date2) ... 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 change UIButton image in Swift

I am trying to change the image of a UIButton using Swift... What should I do This is OBJ-C code ... "play.png"] forState:UIControlStateNormal]; 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 turn the iPhone camera flash on/off?

How can I turn the iPhone's LED camera flash on/off programatically? 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 - distanceFromLocation - Calculate distance between two points

Just a quick question on Core Location, I'm trying to calculate the distance between two points, code is below: ... but I cannot find anything. 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 - "Do Not Embed", "Embed & Sign", "Embed Without Signing". What are they?. What they do?

We have 3 new options in "Frameworks, Libraries, and Embedded Content" section of Xcode11 Beta for adding libraries ... explain what they do? See Question&Answers more detail:os...

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

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287 views

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ios - Does @synchronized guarantees for thread safety or not?

With reference to this answer, I am wondering is this correct? @synchronized does not make any code "thread-safe" As ... , this is known to me. See Question&Answers more detail:os...

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

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341 views

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ios - MKMapView MKPointAnnotation tap event

I have a list of annotations (MKPointAnnotation). I have a UIViewController which is for the whole view, MKMapView ... Sorry for all the fuss! 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 checkmark to be toggled on and off when tapped

I'm working on a tableview I want to be able to tap on each cell and when tapped, it displays a checkmark on the cell Now ... --------------- } 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 remove cache in WKWebview?

Any one worked with WKWebview and tried to clear cache ? If yes, how to do? any example ? P.S. : Normal NSURLCache is not working. See Question&Answers more detail:os...

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

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610 views

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ios - How to apply multiple transforms in Swift

I would like to apply multiple transforms to a UIView (or subclass of UIView), such as translate, rotate, ... Objective-C rather than Swift. See Question&Answers more detail:os...

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

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484 views

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ios - Swift, MapKit - changing custom annotation on tap

I have a custom SVG for annotations. I set the size when initially laying them out. On tap, the custom SVG must change to a ... size = CGSize(width: 15.0, height: 15.0) } } }...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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524 views

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ios - Swift: Two-dimensional array error index out of range

I'm trying to add new item into two-dimensional array but I'm getting this error Index out of range Here is my ... or if there is work around ? I really appreciate you help...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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479 views

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ios - Swift regex for searching format specifiers in a string

I need help to write the swift regex to find any format specifier in a string. Eg. "I am %@. My age is %d and ... not find %.02f and last %@ with paranthesis. Thanks in advance!...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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558 views

1 answer

ios - It it possible to call AWS-Lambda function from Swift-App with Amplify

I've created an iOS-App where I am using AWS-Amplify with GraphQL-Api which works just perfect. But as Amplify ... just like the Https-Callable functions with an iOS Amplify App?...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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585 views

1 answer

ios - How to get rendered view for some json blob

I have a need to render a ColumnSet as a UICollectionView rather than the default UIStackView. I couldn't find a clean way to ... } ], "width": "stretch" } to a single UIStackView?...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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829 views

1 answer

ios - Test Flight - Local Network permission, NSBonjourServices error in TestFlight build

For iOS14 we are supposed to get the local network permission from the user. The app works fine if I run ... have enabled the Local network permission under privacy for the app...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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751 views

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ios - WKWebView loadFileURL:allowingReadAccessToURL: does not allow access to bundle for file in documents or temp

This is sort of a result of this, which is about trying to fix goBack behaviour by writing a string first to a file and ... have stayed that way, but in case someone has an idea......

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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642 views

1 answer

ios - WKWebView loadFileURL:allowingReadAccessToURL: does not allow access to bundle for file in documents or temp

This is sort of a result of this, which is about trying to fix goBack behaviour by writing a string first to a file and ... have stayed that way, but in case someone has an idea......

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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