SwiftUI -使用拖动手势在一个方向上移动视图

import SwiftUI

struct ContentView: View {
    @State private var offset = CGSize.zero
    
    var body: some View {
        Rectangle()
            .frame(width: 200, height: 200)
            .foregroundColor(.blue)
            .offset(x: offset.width, y: offset.height)
            .gesture(
                DragGesture()
                    .onChanged { gesture in
                        self.offset = gesture.translation
                    }
                    .onEnded { _ in
                        self.offset = CGSize.zero
                    }
            )
    }
}

struct ContentView_Previews: PreviewProvider {
    static var previews: some View {
        ContentView()
    }
}