SwiftUI transition using matchedGeometryEffect.
At the start of transition (when the view is inserted in the view hierarchy), the view will be placed matching geometry of the source view with matching id and namespace. Then it will move to it's normal place, no longer matching source view. Reverse when it is removed from the view hierarchy.
matched-demo.mp4
Recommended
Copy FromMatchedGeometry.swift to your project.
SPM
Add this repo using Swift Package Manager: https://github.com/nikstar/FromMatchedGeometry
import FromMatchedGeometry
struct ContentView: View {
@State private var showInsertedView = false
@Namespace private var ns
var body: some View {
VStack {
SourceView()
.matchedGeometryEffect(id: 0, in: ns, isSource: true)
.onTapGesture { showInsertedView.toggle() }
if showInsertedView {
TargetView()
.transition(
.fromMatchedGeometry(id: 0, in: ns)
)
}
}
.animation(.bouncy, value: showInsertedView)
}
}Full example from demo video is available in FromMatchedGeometry.swift as a #Preview.