How Can I Handle Tap Gesture on Widget? - swiftui

Question

I'm writing a widget with WidgetKit and I want to make the widget's content is clickable. For example, if users click to standings, I want to open the standings tab when the app becomes active.
I tried to use notification between the app and widget but the tap gesture is not working, I added print inside of the tap gesture but it did not appear in the console. Also, I added the same app group to both of them.
WidgetView:
struct LargeWidget : View {
#State var standings : [StandingsTable]
var body: some View {
VStack(alignment:.leading){
if standings.count > 0{
HStack(spacing:5){
Text("#").foregroundColor(.gray)
.frame(width: 30)
Text("Team".localized).foregroundColor(.gray)
Spacer()
Text("_D".localized).foregroundColor(.gray)
.frame(width: 30)
Text("_L".localized).foregroundColor(.gray)
.frame(width: 30)
Text("_W".localized).foregroundColor(.gray)
.frame(width: 30)
Text("_P".localized).foregroundColor(.gray)
.frame(width: 30)
}
Divider()
ForEach(0..<5, id: \.self) { i in
HStack(spacing:5){
Text(standings[i].rank)
.font(.system(size: 15))
.padding(.vertical, 3)
.frame(width: 30)
.background(Color(UIColor.systemBackground))
.cornerRadius(4)
Text(standings[i].name)
.lineLimit(1)
.padding(.leading, 5)
Spacer()
Text(standings[i].drawn)
.frame(width: 30)
Text(standings[i].lost)
.frame(width: 30)
Text(standings[i].won)
.frame(width: 30)
Text(standings[i].points)
.frame(width: 30)
}
.padding(.vertical, 5)
.background(standings[i].name == "Besiktas" ? Color(UIColor.systemGray6) : Color.clear)
.cornerRadius(8)
}
Spacer(minLength: 0)
}else{
Text("Large")
.padding()
}
}.padding()
.onTapGesture {
print("clicked to standings")
DispatchQueue.main.async(execute: {
NotificationCenter.default.post(name: NSNotification.Name("standings"), object: nil, userInfo: nil)
})
}
}
}
and here ContentView in app:
import SwiftUI
extension NSNotification {
static let openStandings = NSNotification.Name.init("standings")
}
struct ContentView: View {
#State var show: Bool = false
var body: some View {
NavigationView{
Text("Hello, world!")
.padding()
}.sheet(isPresented: self.$show) {
VStack{
Text("Notification")
.padding()
}
}
.onReceive(NotificationCenter.default.publisher(for: NSNotification.openStandings))
{ obj in
self.show.toggle()
}
}
}
Screenshot of Widget

Answer 1

Okay I created a new project with SwiftUI Environments (not old way AppDelegate and SceneDelegate).
Then I use Link for tap actions and I got it with .onOpenURL modifier in ContentView. It works :)
ContentView:
import SwiftUI
enum SelectedTab: Hashable {
case home
case standings
case options
}
struct ContentView: View {
#State var selectedTab: SelectedTab = .home
var body: some View {
TabView(selection: self.$selectedTab) {
Text("Home")
.tabItem {
Image(systemName: "house")
.renderingMode(.template)
Text("Home")
}.tag(SelectedTab.home)
Text("Standings")
.tabItem {
Image(systemName: "list.number")
.renderingMode(.template)
Text("Standings")
}.tag(SelectedTab.standings)
Text("Options")
.tabItem {
Image(systemName: "gear")
.renderingMode(.template)
Text("Options")
}.tag(SelectedTab.options)
.onOpenURL { (url) in
if url.absoluteString == "widget-deeplink://standings"{
self.selectedTab = .standings
}
}
}
}
}
Link usage example in Widget:
Link(destination: URL(string: "widget-deeplink://standings")!) {
Text("Link Test")
}