View+Condition.swift (2256B)
1 // MIT License 2 // Copyright © Antoine van der Lee 3 // 4 // Permission is hereby granted, free of charge, to any person obtaining a copy of this software 5 // and associated documentation files (the "Software"), to deal in the Software without restriction, 6 // including without limitation the rights to use, copy, modify, merge, publish, distribute, 7 // sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is 8 // furnished to do so, subject to the following conditions: 9 // 10 // The above copyright notice and this permission notice shall be included in all copies or 11 // substantial portions of the Software. 12 // 13 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING 14 // BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 15 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, 16 // DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 17 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 18 // 19 import SwiftUI 20 21 extension View { 22 /// Applies the given transform if the given condition evaluates to `true`. 23 /// - Parameters: 24 /// - condition: The condition to evaluate. 25 /// - transform: The transform to apply to the source `View`. 26 /// - Returns: Either the original `View` or the modified `View` if the condition is `true`. 27 @ViewBuilder func `if`<Content: View>(_ condition: @autoclosure () -> Bool, transform: (Self) -> Content) -> some View { 28 if condition() { 29 transform(self) 30 } else { 31 self 32 } 33 } 34 } 35 36 extension Bool { 37 static var iOS15: Bool { 38 guard #available(iOS 16, *) else { 39 return true // iOS 15 40 } 41 return false // iOS 16+ 42 } 43 static var iOS16: Bool { 44 guard #available(iOS 16, *) else { 45 return false // iOS 15 46 } 47 return true // iOS 16+ 48 } 49 } 50 51 // Use like this: 52 // 53 // Text("Hello, world!") 54 // .padding() 55 // .if(.iOS15) { view in 56 // view.background(Color.red) 57 // }