Recent questions tagged IOS

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ios - Why is retrieving the data from this URL returning nil?

I am following this post for getting JSON data and for some reason this function: func getJSON(urlToRequest: String ... why data is 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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ios - YouTube Data API Error 403 Insufficient Permission

I'm working on an IOS app using Swift that requires accessing to the user's YouTube subscriptions. After ... .app()?.options.clientID 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 - block until reverseGeocode has returned

I am trying to find a user's location from a coordinate to save into my database. To find the location ... timeout return self.locationName; } 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 do you compare 2 operands of type Date? to sort an array in Swift?

In order to sort an array of a custom struct that has bools, integers, and dates. I successfully used the ... .create_dt > $1.create_dt}) } 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 - Swift: convert NSDate to c# ticks

i need to convert a NSDate to C# ticks. DateTime.ticks converts date to ticks starting from January 1 0001. How ... do that? 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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361 views

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ios - Swift Cannot remove CIFIlter from UIImage

been working on swift for a bit now and having trouble tackling this Core Image Framework. I was able to ... be very appreciative, 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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ios - UILabel auto scroll like a marquee

I am trying I make a UI label auto scroll the text that is inside it like a marquee. ... [self.currentTrack observeApplicationNotifications]; } 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 - iOS8 phonegap cordova network-information app crashes

I use Xcode 6.1 iOS 8.1 cordova 4.0.0 (iOS 3.6.3) org.apache.cordova.network-information 0.2.13 ... for this problem? Thanks for any hints. 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 - Navigation bar is moving up to statusbar

I have a viewController. Which does not have navigationBar. I am pushing another viewController that has navigationBar ... , animated: false) 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 - Delay when using instantiateViewControllerWithIdentifier but not performSegueWithIdentifier?

The code below is used to push another view controller onto the navigation stack. When using ... 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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352 views

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ios - how to resolve the issue: "'Instance method '-arrayByPerformingSelector:' not found (return type defaults to 'id')"

i saw in one post -(id)arrayByPerformingSelector declaration in interface should do , but when i tried it this declaration ... . Thanks all :):) 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 - Is the newly added 'My Card' that automatically shows up in IOS9 a reliable way to get a users phone number?

Am I correct that with a address book permission we should be able to pretty reliably get a users phone number ... work around for ios9 users. See Question&Answers more detail:os...

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

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273 views

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ios - iPhone App floating point calculations when released to the app store.

I released my first solo iPhone app last week that calculates 12V Marine and Boat Battery usage. I had tested it ... be behaving in this way? See Question&Answers more detail:os...

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

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353 views

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ios - Loaded the nib but didn't get a UITableView Exception

I'm trying to load a uitableview using ECSlidingViewController methods. When I call this code: UIStoryboard* sb = [ ... . What did I miss? See Question&Answers more detail:os...

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

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256 views

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ios - FloatValue with 2 decimals from textField

In my Core Data app I save 3 Floating point numbers from 3 UITexFields. To do that I had to ... textFieldLiterpris.text as NSString).floatValue See Question&Answers more detail:os...

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

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294 views

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ios - Swift closure syntax using { ... in }

On the Apple SwiftUI Tutorial: Drawing Paths and Shapes, the following syntax is shown: struct Badge: View { ... statement, whatever that means? See Question&Answers more detail:os...

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

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410 views

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ios - Issue with conforming to Objective-C protocol from Swift NSObject subclass

This piece of code works absolutely fine in Swift 1.1 // Obj-C @import Foundation; @protocol HashableObject < ... for the next Swift release. See Question&Answers more detail:os...

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

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217 views

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ios - After JSON parsing -viewForAnnotation shows only ONE single annotation on MKMapView

I need to show on my MkMapView about 10 locations (and respective annotations) and after pressing a button I need ... Please give me an 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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199 views

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ios - What really is the best way to have MORE THAN ONE controller in a container?

Here's a ViewController, and it has a container view. Note the container is only a part of the ... -with-custom-container-view-controllers 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 - UISwipeGestureRecognizer throw unrecognised selector sent error

I am getting unrecognized selector sent error in my iOS application. I tried solving the issue based on the answers mentioned ... = 1 //} } } See Question&Answers more detail:os...

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

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253 views

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ios - How can I delete a specific child node in Firebase from UITableViewCell using Swift

I have a UITableView which looks like this image . When I swipe to delete the record, I can remove it ... the UserId that is logged in? See Question&Answers more detail:os...

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

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345 views

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ios - change UIImage from MKAnnotation in the MKMapView

I have a mapView with only on MKAnnotation, that has a costume image. When the user changes the mapType, I ... and drop another? Thanks, RL See Question&Answers more detail:os...

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

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543 views

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ios - Transform and Rotate in Scenekit

I have a SCN Node that I have Transformed to a desired Rotation and Angle. I now want to rotate it infinitely on ... 0, 0, 4), item.transform) See Question&Answers more detail:os...

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

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313 views

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ios - Singleton objective c clarification

as I continue my studies the book implemented a singleton. I understood the reason why use it but I just wanted ... will be set to nil? Cheers See Question&Answers more detail:os...

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

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378 views

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ios - Is there any way to schedule mail using gmail api?

I am currently working gmail Queries of "GTLGmail" is there any way or query to schedule mails. I had gone ... the same. 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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375 views

1 answer

ios - Image in TableViewCell swipe action

I have a swipe action to 'complete' a task in my to-do list app. This is the image I have set: However ... so there is no whitespace? 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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354 views

1 answer

ios - SwiftUI show/hide title issues with NavigationBar

I have the following code construct which gives me a lot of trouble: //Main View struct ContentView: View { var ... back to false did not 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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311 views

1 answer

ios - Update local database in the background through silent push notification when app is not running

Is it possible to receive a silent push notification ("content-available": "1") and run a function to change data ... , the data is not updated. See Question&Answers more detail:os...

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

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