Important

MovieSwiftUI have been upgraded to the latest SwiftUI features, so you'll need a beta version of Xcode 12 in order to build & run it.

MovieSwiftUI

MovieSwiftUI is an application that uses the MovieDB API and is built with SwiftUI. It demos some SwiftUI (& Combine) concepts. The goal is to make a real world application using SwiftUI only. It'll be updated with new features as they come to the SwiftUI framework.

這是我用來練習的APP 主要分為幾個階段

Part1.以呈現UI為主

Part2.串接API 將各個畫面連接起來

Part3.添加動畫

Part4.優化程式碼

Architecture

MVVM

踩到的坑

ScrollView 裡添加 GeometryReader ScrollViewReader 會導致scrollview無法滾動 目前猜測事GeometryReader造成ScrollView無法正常計算ContentView

withAnimation連續呼叫會造成動畫重複

ScrollView(.horizontal){
    GeometryReader(){ geometry in
        ScrollViewReader(content: { proxy in
            HStack{
                ForEach(0..<5) {i  in
                    Text("\(i)")
                        .frame(width: 320,height:400)
                        .id(i)
                        .foregroundColor(.white)
                }
            }.onChange(of: menuIndex) { target in
                print(menuIndex)
                withAnimation {
                    proxy.scrollTo(menuIndex)
                }
            }
        })
    }
}

不太懂的地方

ScrollView GeometryReader ScrollViewReader 還不太熟 Grid item的部分

待辦事項

TopMenu 可再優化