swift

[Solved] Background Processing in Swift

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Despite getting downvoted, I still think my solution may be useful to someone new to notifications in iOS development. I switched from local notifications to push notifications setting my remote flask application to handle all the background processing and notification sending with firebase: Follow this tutorial to set your app for receiving push notifications: https://www.youtube.com/watch?v=34kvGKdPN2k … Read more

[Solved] is there a way to measure Swift’s performance without building UI on iPhone with Xcode 11? [closed]

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This is an example of how to measure the time of a sum of numbers let numbersArray = [1,2,3,4,5,6,7,8,9,1,2,3,4,5,6] func showBenchmarkTime(title:String, operation:()->()) { let startTime = CFAbsoluteTimeGetCurrent() operation() let timeElapsed = CFAbsoluteTimeGetCurrent() – startTime print(“Time elapsed for \(title): \(timeElapsed) s.”) } showBenchmarkTime(title: “sum an array of numbers”) { print(numbersArray.reduce(0, +)) } solved is there a … Read more

[Solved] 2017-08-16 05:08:54 Convert String to in Date “17-Aug 13 : 30” using swift 3

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The input is yyyy-MM-dd hh:mm:ss and the output is dd-MMM HH:mm.So do like let outFormatter = DateFormatter() // set the input format outFormatter.dateFormat = “yyyy-MM-dd hh:mm:ss” // convert your string to date let date = outFormatter.date(from: “2017-08-16 05:08:54”)! // set the output format outFormatter.dateFormat = “dd-MMM HH : mm” // convert your date to expected … Read more

[Solved] Xcode unexpectedly found nil while unwrapping an Optional, but no idea why

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Solved it. As the comments pointed out, the problem was that I was not accessing ViewController correctly. In order to access my ViewController outside of the ViewController class, I was creating a new instance of it by ViewController(). I solved it by putting the function inside the class and changing ViewController() part to self.ViewController. This … Read more

[Solved] How can I get rid of blurry textures in Metal?

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In your texture sample call (in the shader), you need to set your magnification filter to ‘nearest’, instead of ‘linear’, like so (assuming your sampler is declared inline inside your shader): constexpr sampler textureSampler (mag_filter::nearest, // <– Set this to ‘nearest’ if you don’t want any filtering on magnification min_filter::nearest); // Sample the texture to … Read more

[Solved] Convert Objective-C to Swift for these below code [closed]

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Try this typealias ActionBlock = () -> Void class UIBlackButton: UIButton { var actionBlock: ActionBlock = {} func handleControlEvent(event: UIControlEvents, action: @escaping ActionBlock) { actionBlock = action self.addTarget(self, action: #selector(callActionBlock), for: event) } @objc func callActionBlock(sender: Any) { actionBlock(); } } solved Convert Objective-C to Swift for these below code [closed]

[Solved] Selecting Video from Camera Roll [closed]

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You can use this: func getMovie() { let selecionadorDeFoto = UIImagePickerController() selecionadorDeFoto.delegate = self selecionadorDeFoto.mediaTypes = [kUTTypeMovie as String] selecionadorDeFoto.allowsEditing = false selecionadorDeFoto.sourceType = .photoLibrary present(selecionadorDeFoto, animated: true, completion: nil) } func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) { // Your code here } 6 solved Selecting Video from Camera Roll [closed]

[Solved] Converting a NSString to NSDate

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check your date format [dateFormatter setDateFormat:@”yyyy-MM-dd’T’HH:mm:ss.SSS’Z'”]; change into [dateFormatter setDateFormat:@”yyyy-MM-dd’T’HH:mm:ssZ”]; Swift check your date format dateFormatter.dateFormat = “yyyy-MM-dd’T’HH:mm:ss.SSS’Z'” change into dateFormatter.dateFormat = “yyyy-MM-dd’T’HH:mm:ssZ” 1 solved Converting a NSString to NSDate