I have my code as follows:
Rectangle()
.fill(Color.red)
.frame(width: 60, height: 60, alignment: .center)
.cornerRadius(recording ? 5 : 30)
So I was wondering if .frame could be conditional just like .cornerRadius is. I am doing that in order to morph the shape, however I also need to make it smaller when it morphs. An example is a Voice Memos app's record button.
If you're talking about using no frame modifier altogether (or providing a clean way to do different frames), a ViewModifier might be a good option:
struct ContentView: View {
@State private var recording = false
var body: some View {
Rectangle()
.fill(Color.red)
.modifier(CustomFrameModifier(active: recording))
.cornerRadius(recording ? 5 : 30)
}
}
struct CustomFrameModifier : ViewModifier {
var active : Bool
@ViewBuilder func body(content: Content) -> some View {
if active {
content.frame(width: 60, height: 60, alignment: .center)
} else {
content
}
}
}
Yes, you can use the ternary conditional statement with .frame as well.
Example:
.frame(width: recording ? 40 : 60, height: recording ? 40 : 60, alignment: .center)
I assume you wanted something like this
Rectangle()
.fill(Color.red)
.frame(width: recording ? 45 : 60, height: recording ? 30 : 60, alignment: .center)
.cornerRadius(recording ? 5 : 30)
.onTapGesture {
recording.toggle()
}
.animation(.default, value: recording)
You can do with ?
import SwiftUI
struct ContentView: View {
@State private var recording: Bool = Bool()
@State private var color: Color = Color.blue
var body: some View {
ZStack {
Circle()
.fill(Color.white)
.frame(width: 60.0, height: 60.0, alignment: .center)
.shadow(radius: 10.0)
Circle()
.fill(color)
.frame(width: recording ? 30.0 : 60.0, height: recording ? 30.0 : 60.0, alignment: .center) // <<: Here!
}
.onTapGesture { recording.toggle() }
.animation(.easeInOut, value: recording)
.onChange(of: recording) { newValue in if newValue { colorFunction() } else { color = Color.blue } }
}
func colorFunction() {
if (color != Color.red) { color = Color.red } else { color = Color.clear }
DispatchQueue.main.asyncAfter(deadline: .now() + .seconds(1)) { if recording { colorFunction() } }
}
}
