Hi ! I was recently asked to make the iPhone vibrate while using the app (not by notification). It’s been a while since I had to do it and back then it was in Obj-C. Here’s how to achieve it in Swift:
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import UIKit import AudioToolbox class ViewController: UIViewController { override func viewDidLoad() { super.viewDidLoad() AudioServicesPlayAlertSound(SystemSoundID(kSystemSoundID_Vibrate)) } } |
Cheers,
MAB
Is it just me or Xcode isn’t the piece of software it used to be ? I mean, it’s never been awesome but recently I crash it 2-3 times a day. Not to mention the two fingers swipe ( for back & fwd ) that also breaks often. I expect the same software quality from Apple that my clients expect from me.
Sorry its been a while here it is :
Simple but handy
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import Foundation typealias ViewControllerStoryboardInfo = (name: String, id: String?) protocol Container { } extension Container where Self: UIViewController { func addChildViewController(withInfo info: ViewControllerStoryboardInfo)-> UIViewController? { var viewController: UIViewController! = nil switch info.id { case let identifier where identifier != nil: viewController = UIStoryboard(name: info.name, bundle: nil).instantiateViewController(withIdentifier: identifier!) default: viewController = UIStoryboard(name: info.name, bundle: nil).instantiateInitialViewController() } if let viewController = viewController { self.addChildViewController(viewController) viewController.view.frame = self.view.bounds self.view.addSubview(viewController.view) viewController.didMove(toParentViewController: self) return viewController } return nil } func removeAllChildViewController() { self.childViewControllers.forEach({ (controller) in controller.view.removeFromSuperview() controller.willMove(toParentViewController: nil) controller.removeFromParentViewController() }) } } |
I was re-reading Apple’s documentation about closure and I tough it couldn’t hurt anybody to share this little resume about closure syntax.
Here’s a simple closure :
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reversedNames = names.sorted(by: { (s1: String, s2: String) -> Bool in return s1 > s2 }) |
Here’s the same but simpler :
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reversedNames = names.sorted(by: { (s1: String, s2: String) -> Bool in return s1 > s2 } ) |
Hmm even simpler :
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reversedNames = names.sorted(by: { s1, s2 in return s1 > s2 } ) |
Huh ?!? Even more :
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reversedNames = names.sorted(by: { s1, s2 in s1 > s2 } ) |
WTF ?!?! Really ?! (but yeah it works) :
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reversedNames = names.sorted(by: { $0 > $1 } ) |
And finally (unreadable but still) :
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reversedNames = names.sorted(by: >) |
From The Swift Programming Language (Swift 3.0.1)
Cheers,
MAB
Hello ! I know its been a while, holidays and all …
Here’s a little extension that does no magic but shortens your code if you have to load child view controller from storyboards. Sorry for the lack of syntax colouring, WordPress does not seem to support Swift yet.
[code language=”text”]
import Foundation
typealias ViewControllerStoryboardInfo = (name: String, id: String?)
protocol Container {
}
extension Container where Self: UIViewController {
func addChildViewController(withInfo info: ViewControllerStoryboardInfo)-> UIViewController? {
var viewController: UIViewController! = nil
switch info.id {
case let identifier where identifier != nil:
viewController = UIStoryboard(name: info.name, bundle: nil).instantiateViewController(withIdentifier: identifier!)
default:
viewController = UIStoryboard(name: info.name, bundle: nil).instantiateInitialViewController()
}
if let viewController = viewController {
self.addChildViewController(viewController)
viewController.view.frame = self.view.bounds
self.view.addSubview(viewController.view)
viewController.didMove(toParentViewController: self)
return viewController
}
return nil
}
func removeAllChildViewController() {
self.childViewControllers.forEach({ (controller) in
controller.view.removeFromSuperview()
controller.willMove(toParentViewController: nil)
controller.removeFromParentViewController()
})
}
}
[/code]
Cheers,
MAB
It’s free pub for them but they certainly deserve it ! All of you dev out there you need to try this. Pick you project PSD or Sketch, import it and enjoy.
Downside … a little bit expensive in my humble opinion.
Hi all,
Sorry for the delay, I have been busy building up a Swift 3 framework for OpenGL and Vuforia.
Back to our main topic. I recently built an Xcode server for my project. The project uses Cocoapods and for a time it was good then, a few days ago, a build exited with the error :
Your local changes to the following files would be overwritten by merge.
And has been failing ever since until I found the solution. It seems the cocoa pods repo gets messed up sometime and you need to hard reset it to HEAD. Here how :
cd ~/.cocoapods/repos/master
git reset HEAD –hard
Takes a couple of minutes and then you should be just fine !
Enjoy 🙂
MAB
A (mostly) comprehensive list of Swift 3.0 and 2.3 changes
I have been moving so I am lacking time for blogging but more to come soon ( I hope ).
Hey !
I know its been a while, I am qui busy at Moment Factory right now. Those guys are geniuses. Anyway, I wanted to share with you, if you don’t already know it, how to animate anything that uses a UIImage aka. UIImageView, UIButton, etc…
To create an animated UIImage, include in you project a folder that contains your animation with a PNG for each frame. The files needs to be named like this:
I strongly recommend not to include these in an asset file, if you try you’ll quickly understand why.
Then you create a UIImage :
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let animatedImage = UIImage.animatedImageNamed("WhatEverNameYouWant-", duration: 5) |
You can the use it with a UIButton like you would with any other UIImage :
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button1.setImage(animatedImage, forState: .Normal) |
That’s it ! Have fun animating you apps !!
MAB
I recently got bored with the standards mono-spaced font that comes with a MacOs so I have been looking for a new eye candy and found this :
Let me know if you like it !
MAB
Hi all,
Not much this week except this
Superb article from Matt Gallagher that explains a lot on long compile time in swift.
Happy reading !
MAB
