Disable 77% scaling for Mac Catalyst apps. (Swift)
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let overrideCatalystScaleFactor: Void = { | |
guard let sceneViewClass = NSClassFromString("UINSSceneView") as? NSObject.Type else { | |
return | |
} | |
if sceneViewClass.instancesRespond(to: NSSelectorFromString("scaleFactor")) { | |
// old | |
swizzleInstanceMethod( | |
class: sceneViewClass, | |
originalSelector: NSSelectorFromString("scaleFactor"), | |
swizzledSelector: #selector(swizzle_scaleFactor) | |
) | |
} else { | |
// macOS 11.3 Beta 3+ | |
swizzleInstanceMethod( | |
class: sceneViewClass, | |
originalSelector: NSSelectorFromString("sceneToSceneViewScaleFactor"), | |
swizzledSelector: #selector(swizzle_scaleFactor) | |
) | |
swizzleInstanceMethod( | |
class: sceneViewClass, | |
originalSelector: NSSelectorFromString("fixedSceneToSceneViewScaleFactor"), | |
swizzledSelector: #selector(swizzle_scaleFactor2) | |
) | |
swizzleInstanceMethod( | |
class: NSClassFromString("UINSSceneContainerView"), | |
originalSelector: NSSelectorFromString("sceneToSceneViewScaleForLayout"), | |
swizzledSelector: #selector(swizzle_scaleFactor3) | |
) | |
} | |
}() | |
@objc private extension NSObject { | |
func swizzle_scaleFactor() -> CGFloat { 1 } | |
func swizzle_scaleFactor2() -> CGFloat { 1 } | |
func swizzle_scaleFactor3() -> CGFloat { 1 } | |
} |
Thanks works well overall but I have an issue:
When picking a photo using UIImagePickerController or PHPickerViewController the touches/clicks are not registered correctly. It's probably best to have the picker stick to the default 77% scaling. Any tips on how to do this?
@Janneman84 you could:
A. open those remote view controllers on a separated window scene, where scaling is set to 77% (requires modification on the swizzled methods);
or B. replace PHPickerViewController
with a macOS equivalent such as UIDocumentPickerViewController
or NSOpenPanel
.
Thanks for the tip!
I figured out image pickers are pretty useless in MacOS anyway. A document picker works much better!
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For implementation of
swizzleInstanceMethod
, check Swizzle.swift