autolayout:自动版式库

自动版式库。 安装 .package(url: "https://github.com/j4n0/autolayout.git", from: "1.0.0"), 用法 view. al . pin () view. al . pinToLayoutMargins () view. al . pinToSafeArea () view. al . pinToReadableContent () view. al . pin ( sides : [. leading , . trailing ]) view. al . pinToLayoutMargins ( sides : [. top , . bottom ]) view. al . pinToSafeArea ( sides : [. leading , . top , . trailing ]) view. al . pinToRe