SwiftUIReverseMask
This is the example how to do reverse mask in SwiftUI
How to Use
at first, create View+Extension
import SwiftUI
extension View {
func reverseMask<Mask: View>(alignment: Alignment = .center,
@ViewBuilder _ mask: () -> Mask) -> some View {
self.mask {
Rectangle()
.overlay(alignment: alignment) {
mask()
.blendMode(.destinationOut)
}
}
}
}then, use it like doing mask modifier.
struct ContentView: View {
var body: some View {
Image("img_mask")
.resizable()
.frame(width: 300, height: 300)
.reverseMask {
Image(systemName: "applelogo")
.font(.system(size: 100))
}
}
}Preview
