2021/02/09 » SwiftUI view basics live demo

[kuotinyen]

Description:

Live coding to show basic SwiftUI View and layout way.

Google Meet:

https://meet.google.com/hjy-jmmk-wzi

[kuotinyen]

Q：How to make proportion Spacer in SwiftUI like Flutter flex? A：Maybe can use double Spacer to make its length 2x.

[kuotinyen]

Q：Will ScrollView + LazyVStack cause cell reuse performance issue? A：Unknown.

[kuotinyen]

Q：How to refactor with Router? A：https://stackoverflow.com/questions/61304700/swiftui-how-to-avoid-navigation-hardcoded-into-the-view

[kuotinyen]

Ｑ：How to solve NavigationLink destination pre-initialize performance issue? Ａ：Wrap the view in LazyView() to make destination lazy.

struct LazyView<Content: View>: View {
    let build: () -> Content
    init(_ build: @autoclosure @escaping () -> Content) {
        self.build = build
    }
    var body: Content {
        build()
    }
}

[kuotinyen]

Repository: https://github.com/kuotinyen/ios-taipei