SwiftUI之stroke()和strokeBorder()区别

1.stroke()会使View变大,因为绘制边框一半在里面,一半在外面

you’ll see the circle looks bigger because the stroke is drawn half inside and half outside the circle.

Circle()
    .stroke(Color.blue, lineWidth: 50)
    .frame(width: 200, height: 200)
    .padding()

2.strokeBorder()完全在View内部绘制

Because that uses strokeBorder(), the 50-point blue stroke will be drawn entirely inside the circle.

Circle()
    .stroke(Color.blue, lineWidth: 50)
    .frame(width: 200, height: 200)
    .padding()

原文:https://www.hackingwithswift.com/quick-start/swiftui/how-to-draw-a-border-inside-a-view