View your app on different device and font sizes
Sizes reduces the time it takes to evaluate all of our apps possible device sizes, orientations and font combinations. With Sizes we’ll avoid launching all the supported devices simulator, running our app and navigating through each screen manually which not only takes a lot of time but its also highly error prone since we sometimes forget to test one particular combination and we ship a screen with a layout bug to the App Store.
Xcode 11 introduced Previews which is a fantastic way to quickly validate your UI in multiple scenarios just like Sizes did. If you’d like to know more about Xcode Previews I recommend this WWDC session. You can even use Previews with UIKit so there’s no reason to stick to this library.
This library will be deprecated and the repo will be archived in the future.
Recorded on an 10.5 inch iPad Pro
Sizes was created as a port of Brandon Williams and Stephen Celis in Playgrounds for the Kickstarter iOS app and further explained in PointFree to iOS. Make sure to check their site out!
To run the demo project, clone the repo and run Sizes
target.
Edit your Podfile
and specify the dependency:
pod 'Sizes'
Edit your Cartfile
and specify the dependency:
github "marcosgriselli/Sizes"
Sizes require you to use Auto Layout in order to update the UI correctly with each change.
For font updates you’ll need to use Dynamic Type.
Programmatically:
let label = UILabel()
label.font = UIFont.preferredFont(forTextStyle: .headline, compatibleWith: traitCollection)
label.adjustsFontForContentSizeCategory = true
IB/Storyboard:
I highly recommend you only use this while on #DEBUG
mode.
The best way to setup Sizes is to use the SizesWindow
as your AppDelegates'
window. This will automatically make a SizesViewController
instance contain your apps root view controller and you’ll still be able to use code like UIApplication.shared.windows.first?.rootViewController as? YourInitialCustomViewController
with no issues.
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
#if DEBUG
window = SizesWindow()
window?.rootViewController = UIStoryboard(name: "Main", bundle: nil).instantiateInitialViewController()!
window?.makeKeyAndVisible()
#endif
return true
}
Shake to display the Sizes configuration UI, then tap on one of the orientation/device options to trigger a change. Or update the Text size slider to navigate through the different font sizes, you’ll get the font name as you slide. You can check a longer video implementation and some of the use cases of Sizes in this tweet
You can check the GitHub Project or Issues to get an overview of new features, fixes or releases planed.
This is an open source project, so feel free to contribute. How?
See all contributors
Marcos Griselli | @marcosgriselli
MIT License
Copyright (c) 2018 Marcos Griselli
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The above copyright notice and this permission notice shall be included in all
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