iOS os version checking around certain APIs (#1094)

* iOS os version checking

* iOS, fix some incorrect msg_send return types

* address nits, and fix OS version check for unsupported os versions

* source for 60fps guarantee
This commit is contained in:
mtak- 2019-08-26 15:47:23 -07:00 committed by Osspial
parent 7b707e7d75
commit f53683f01f
9 changed files with 209 additions and 81 deletions

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@ -134,6 +134,7 @@ If your PR makes notable changes to Winit's features, please update this section
* Base window size
### iOS
* `winit` has a minimum OS requirement of iOS 8
* Get the `UIWindow` object pointer
* Get the `UIViewController` object pointer
* Get the `UIView` object pointer