Animation goes into background view instead of foreground - ios

I have the following:
struct SettingsView: View {
#State private var showSuccessSave: Bool = false
var body: some View {
NavigationView {
ScrollView {
VStack {
SuccessNotificationView()
.offset(y: self.showSuccessSave ? -UIScreen.main.bounds.height/9 : -UIScreen.main.bounds.height)
.animation(
.interactiveSpring(
response: 0.8,
dampingFraction: 0.8,
blendDuration: 1
)
)
.onTapGesture {
self.showSuccessSave = false
}
Button(action: {
self.showSuccessSave.toggle()
}) {
Text("Save")
}
}
}
.navigationBarTitle("Settings")
}
}
}
And the function I call:
struct SuccessNotificationView: View {
var body: some View {
Text("Success")
.padding()
.foregroundColor(Color.white)
.frame(width: UIScreen.main.bounds.width, height: 100)
.background(Color.green)
.cornerRadius(20)
}
}
When it pops up, look at the settings text:
How do I make that notification be on the foreground covering the Settings text? Right now it displays everything in that view on top of it.

Here is possible approach. Tested with Xcode 11.4 / iOS 13.4
struct SettingsView: View {
#State private var showSuccessSave: Bool = false
var body: some View {
ZStack(alignment: .top) {
NavigationView {
ScrollView {
VStack {
Button(action: {
self.showSuccessSave.toggle()
}) {
Text("Save")
}
}
}
.navigationBarTitle("Settings")
}
SuccessNotificationView()
.offset(y: self.showSuccessSave ? 0 : -UIScreen.main.bounds.height)
.animation(
.interactiveSpring(
response: 0.8,
dampingFraction: 0.8,
blendDuration: 1
)
)
.onTapGesture {
self.showSuccessSave = false
}
}
}
}

Related

SwiftUI sheet reappears after dismissed on Apple Watch

I'm developing a fitness app for the Apple Watch that lets you choose an intensity before starting a workout. I want to present the intensity picker before the workout starts, so I tried presenting it as a sheet before navigating to the actual workout view. The problem is that when I try to dismiss the sheet, it is dismissed but it comes right back. I'm using Xcode 14.2 and watchOS 9.1.
This is the main view and also the view that presents the said sheet (the first one, controlled by showingZonePickerView):
import SwiftUI
#main
struct Wise_Watch_AppApp: App {
#StateObject private var workoutManager = WorkoutManager()
#SceneBuilder var body: some Scene {
WindowGroup {
NavigationView {
WorkoutView()
}
.sheet(isPresented: $workoutManager.showingZonePickerView, onDismiss: {
workoutManager.showingZonePickerView = false
}) {
WorkoutLevelPickerView(total: 5, completed: 1)
.toolbar(.hidden)
}
.sheet(isPresented: $workoutManager.showingSummaryView) {
SummaryView()
}
.environmentObject(workoutManager)
}
}
}
This is the view where the user can pick the preferred workout:
import SwiftUI
import HealthKit
struct WorkoutView: View {
#EnvironmentObject var workoutManager: WorkoutManager
#State var linkActive: Bool = false
var workoutTypes: [HKWorkoutActivityType] = [.cycling, .running, .walking]
var workoutDictionary: Dictionary<String, HKWorkoutActivityType> = [
"figure.outdoor.cycle" : .cycling,
"figure.run" : .running,
"figure.walk" : .walking
]
var body: some View {
List(Array(workoutDictionary.keys), id: \.self) { workoutType in
NavigationLink(
destination: SessionPagingView(),
tag: workoutDictionary[workoutType]!,
selection: $workoutManager.selectedWorkout
) {
Label("\(workoutDictionary[workoutType]!.name)", systemImage: workoutType)
.font(.subheadline)
.fontWeight(.semibold)
.padding()
}
.padding(EdgeInsets(top: 15, leading: 5, bottom: 15, trailing: 5))
}
.listStyle(.carousel)
.navigationBarTitle("Workouts")
.onAppear {
workoutManager.requestAuthorization()
}
}
}
This is the view to which the app navigates when a NavigationLink is pressed:
import SwiftUI
import WatchKit
import ConfettiSwiftUI
struct SessionPagingView: View {
#EnvironmentObject var workoutManager: WorkoutManager
#State private var selection: Tab = .metrics
#State private var counter: Int = 0
#State private var isViewHidden: Bool = true
enum Tab {
case metrics, nowPlaying, milestone
}
var body: some View {
if(isViewHidden) {
sessionView.hidden()
} else {
sessionView
}
}
var sessionView: some View {
TabView(selection: $selection) {
ForEach(workoutManager.tabItems) { item in
VStack {
Text("Congrats!")
.font(.title2)
.fontWeight(.bold)
.confettiCannon(counter: $counter, num: 40, radius: 200)
Text("You just reached")
.font(.subheadline)
.foregroundColor(.cyan)
.tag(Tab.milestone)
Text("\(item.value) km")
.font(.subheadline)
.foregroundColor(.cyan)
.tag(Tab.milestone)
}
}
MetricsView().tag(Tab.metrics)
NowPlayingView().tag(Tab.nowPlaying)
}
.navigationBarHidden(true)
.navigationBarBackButtonHidden(true)
.onAppear {
workoutManager.showingZonePickerView = true
DispatchQueue.main.asyncAfter(deadline: .now() + 1) {
self.isViewHidden = false
}
}
.onChange(of: workoutManager.running) { _ in
displayMetricsView()
}
.onChange(of: workoutManager.tabItems) { _ in
if(workoutManager.tabItems.count > 0) {
displayMilestoneView()
DispatchQueue.main.asyncAfter(deadline: .now() + .seconds(5), execute: {
displayMetricsView()
})
}
}
.ignoresSafeArea()
.animation(.easeInOut, value: self.selection)
}
private func displayMetricsView() {
withAnimation {
selection = .metrics
}
}
private func displayMilestoneView() {
withAnimation {
selection = .milestone
WKInterfaceDevice.current().play(.notification)
DispatchQueue.main.asyncAfter(deadline: .now() + .seconds(1), execute: {
counter += 1
})
}
}
}
This is the actual view that I'm presenting inside the sheet:
import SwiftUI
struct WorkoutLevelPickerView: View {
#EnvironmentObject var workoutManager: WorkoutManager
#Environment(\.dismiss) private var dismiss
let total: Int
#State var lineWidth: CGFloat = 16
#State var color: Color = .green
#State var completed: Double = 1.0
#State var currentZone: HeartRateZone = zones[0]
#State var isScrolling: Bool = false
var body: some View {
VStack {
ZStack {
CircleLabelView(
radius: 30,
tracking: 0,
size: .init(width: 120, height: 120),
text: currentZone.intensity.uppercased()
)
.font(.headline)
.frame(width: 50, height: 50)
.rotationEffect(Angle(degrees: Double(currentZone.labelRotationAngleModifier * currentZone.intensity.count / 2)))
.opacity(isScrolling ? 0 : 1)
.animation(.easeInOut, value: isScrolling)
WorkoutLevelPickerBackgroundView(total: total, lineWidth: lineWidth)
withAnimation(.spring()) {
WorkoutLevelPickerProgressView(total: total, completed: Int(completed), lineWidth: lineWidth, zone: currentZone)
}
VStack {
Button {
dismiss()
} label: {
Image(systemName: currentZone.iconName)
.padding()
.font(.title2)
}
.frame(width: 70, height: 70)
}
}
.frame(width: 150, height: 150)
.focusable()
.digitalCrownRotation(
detent: $completed.animation(.spring()),
from: 1.0,
through: 5.0,
by: 1.0,
sensitivity: .low,
isContinuous: false,
isHapticFeedbackEnabled: true,
onChange: { _ in
isScrolling = true
},
onIdle: {
isScrolling = false
}
)
.digitalCrownAccessory(.hidden)
.onChange(of: completed) {_ in
if(Int(completed) != currentZone.id) {
currentZone = zones[Int(completed) - 1]
print(currentZone.tint.description)
}
}
}
}
}
This is a video of the flow that generates my problem:
I tried presenting the sheet from other views. I also tried dismissing the sheet through a binding, not through the dismiss action. On all these changes, the outcome was the same as before.
Edit:
Forgot to mention that, when the sheet is presented, pressing the side button will dismiss it and the app will work as intended until the user tries to start a new workout.
As Paulw11 mentioned in his comment, the problem was that I was constantly setting showingZonePickerView on true when the sheet was dismissed and the view reappeared.

Trying to animate a gradient and instead it animates an other struct view SWIFTUI

So I'm trying to animate a gradient background and instead it animates a complete different view
Can't really find what causes SingleEventView to animate instead of the background of the VStack, really appreciate your help
animationGradient
Here is a video of how it actually looks like on simulator, it also looks like this on my phone
https://streamable.com/5xa13g
var events: [Event]
#State var colors: [Color] = []
#State private var animationGradient = true
var body: some View {
NavigationView {
VStack {
Spacer()
List {
ForEach(events) { event in
NavigationLink(destination: DetailEventView(event: event)) {
SingleEventView(event: event)
}
.listRowBackground(Color.clear)
}
}
.listStyle(.plain)
.frame(height: 500)
}
.background(LinearGradient(gradient: Gradient(colors: colors), startPoint: animationGradient ? .topLeading : .bottomLeading , endPoint: animationGradient ? .bottomTrailing : .topTrailing))
.toolbar {
ToolbarItem(placement: .primaryAction) {
Button("New") {
}
.padding(.horizontal, 4.0)
.padding(.trailing, 7.0)
.background(.indigo)
.foregroundColor(Color.white)
.containerShape(RoundedRectangle(cornerRadius: 16))
}
}
.onAppear() {
colors.removeAll()
withAnimation(.linear(duration: 5).repeatForever(autoreverses: true)) {
animationGradient.toggle()
}
for event in events {
colors.append(event.backgroundColor)
}
}
}
.ignoresSafeArea()
}
}```

SwiftUI animation with transition always show slide animation

I have sub-navigation inside Listview and trying to achieve leftSlide and rightSlide animation but it always shows default slide animation. I even tried to add .transition(.move(edge: . leading)) & .transition(.move(edge: . trailing))
import SwiftUI
import Combine
struct GameTabView: View {
#State var selectedTab: Int = 0
init() {
UITableView.appearance().sectionHeaderTopPadding = 0
}
var body: some View {
listView
.ignoresSafeArea()
}
var listView: some View {
List {
Group {
Color.gray.frame(height: 400)
sectionView
}
.listRowInsets(EdgeInsets())
}
.listStyle(.plain)
}
var sectionView: some View {
Section {
tabContentView
.transition(.move(edge: . leading)) // NOT WORKING
.background(Color.blue)
} header: {
headerView
}
}
private var headerView: some View {
ScrollViewReader { proxy in
ScrollView(.horizontal, showsIndicators: false) {
HStack(spacing: 16) {
Button {
withAnimation {
selectedTab = 0
}
} label: {
Text("AAAA")
.padding()
}
Button {
withAnimation {
selectedTab = 1
}
} label: {
Text("BBBB")
.padding()
}
Button {
withAnimation {
selectedTab = 2
}
} label: {
Text("BBBB")
.padding()
}
}
}
}
.background(Color.green)
}
#ViewBuilder private var tabContentView: some View {
switch selectedTab {
case 0:
DummyScreen(title: "FIRST", color: .red)
case 1:
DummyScreen(title: "SECOND", color: .green)
case 2:
DummyScreen(title: "THIRD", color: .blue)
default:
EmptyView()
}
}
}
struct DummyScreen: View {
let title: String
let color: Color
var body: some View {
VStack {
ForEach(0..<15, id: \.self) { index in
HStack {
Text("#\(index): title \(title)")
.foregroundColor(Color.black)
.font(.system(size: 30))
.padding(.vertical, 20)
Spacer()
}
.background(Color.yellow)
}
}
.background(color)
}
}
Just like Asperi said, you can change to another type of View to make the transition works.
I tried your code, changed List to VStack with ScrollView inside to wrap around the tabContentView, and the result of the UI showed the same except with a proper animation now, and you don't have to manually adjust the height of your contents since HStack height is dynamic based on your Text() growth.
Edited: header fixed, animation fixed
import SwiftUI
import SwiftUITrackableScrollView //Added
import Combine
struct GameTabView: View {
#State private var scrollViewContentOffset = CGFloat(0) //Added
#State var selectedTab: Int = 0
init() {
UITableView.appearance().sectionHeaderTopPadding = 0
}
var body: some View {
listView
.ignoresSafeArea()
}
var listView: some View {
ZStack { //Added
TrackableScrollView(.vertical, showIndicators: true, contentOffset: $scrollViewContentOffset) {
VStack {
Color.gray.frame(height: 400)
sectionView
}
}
if(scrollViewContentOffset > 400) {
VStack {
headerView
Spacer()
}
}
}
}
var sectionView: some View {
Section {
tabContentView
.transition(.scale) // FIXED
.background(Color.blue)
} header: {
headerView
}
}
private var headerView: some View {
ScrollViewReader { proxy in
ScrollView(.horizontal, showsIndicators: false) {
HStack(spacing: 16) {
Button {
withAnimation {
selectedTab = 0
}
} label: {
Text("AAAA")
.padding()
}
Button {
withAnimation {
selectedTab = 1
}
} label: {
Text("BBBB")
.padding()
}
Button {
withAnimation {
selectedTab = 2
}
} label: {
Text("BBBB")
.padding()
}
}
}
}
.background(Color.green)
}
#ViewBuilder private var tabContentView: some View {
switch selectedTab {
case 0:
DummyScreen(title: "FIRST", color: .red)
case 1:
DummyScreen(title: "SECOND", color: .green)
case 2:
DummyScreen(title: "THIRD", color: .blue)
default:
EmptyView()
}
}
}
struct DummyScreen: View {
let title: String
let color: Color
var body: some View {
VStack {
ForEach(0..<15, id: \.self) { index in
HStack {
Text("#\(index): title \(title)")
.foregroundColor(Color.black)
.font(.system(size: 30))
.padding(.vertical, 20)
Spacer()
}
.background(Color.yellow)
}
}
.background(color)
}
}
Thanks to #tail and #Asperi
I finally got the solution via updating ScrollView with ScrollviewProxy:
import SwiftUI
import Combine
struct GameTabView: View {
#State var selectedTab: Int = 0
#State var proxy: ScrollViewProxy?
init() {
UITableView.appearance().sectionHeaderTopPadding = 0
}
var body: some View {
listView
.ignoresSafeArea()
}
var listView: some View {
List {
Group {
Color.gray.frame(height: 400)
sectionView
}
.listRowInsets(EdgeInsets())
}
.listStyle(.plain)
}
var sectionView: some View {
Section {
tabContentView
} header: {
headerView
}
}
private var headerView: some View {
ScrollViewReader { proxy in
ScrollView(.horizontal, showsIndicators: false) {
HStack(spacing: 16) {
Button {
withAnimation {
selectedTab = 0
self.proxy?.scrollTo(0, anchor: .center)
}
} label: {
Text("AAAA")
.padding()
}
Button {
withAnimation {
selectedTab = 1
self.proxy?.scrollTo(1, anchor: .center)
}
} label: {
Text("BBBB")
.padding()
}
Button {
withAnimation {
selectedTab = 2
self.proxy?.scrollTo(2, anchor: .center)
}
} label: {
Text("BBBB")
.padding()
}
}
}
}
.background(Color.green)
}
#ViewBuilder private var tabContentView: some View {
ScrollViewReader { proxy in
ScrollView(.horizontal, showsIndicators: false) {
HStack(spacing: 0) {
ForEach(0..<3, id: \.self) { i in
DummyScreen(title: "Name: \(i)", color: .blue)
.frame(idealWidth: UIScreen.main.bounds.width)
.id(i)
}
}
}
.onAppear {
self.proxy = proxy
}
}
}
}

iOS: How to switch views with a Side Menu, SwitftUI

firstly I am really new to iOS development and Swift (2 weeks coming here from PHP :))
I am trying to build a iOS application that has a side menu. And my intention is when I click on a item in the menu the new view will appear on screen like the 'HomeViewController' and for each consequent item like example1, 2 etc (In place of the menu button, Note I will be adding the top nav bar soon to open the menu)
I am wondering how I can accomplish this feature?
Thanks
ContentView.swift
import SwiftUI
struct MenuItem: Identifiable {
var id = UUID()
let text: String
}
func controllView(clickedview:String) {
print(clickedview)
}
struct MenuContent: View{
let items: [MenuItem] = [
MenuItem(text: "Home"),
MenuItem(text: "Example1"),
MenuItem(text: "Example2"),
MenuItem(text: "Example3")
]
var body: some View {
ZStack {
Color(UIColor(red: 33/255.0, green: 33/255.0, blue: 33/255.0, alpha: 1))
VStack(alignment: .leading, spacing: 0) {
ForEach(items) {items in
HStack {
Text(items.text)
.bold()
.font(.system(size: 20))
.multilineTextAlignment(/*#START_MENU_TOKEN#*/.leading/*#END_MENU_TOKEN#*/)
.foregroundColor(Color.white)
Spacer()
}
.onTapGesture {
controllView(clickedview: items.text)
}
.padding()
Divider()
}
Spacer()
}
.padding(.top, 40)
}
}
}
struct SideMenu: View {
let width: CGFloat
let menuOpen: Bool
let toggleMenu: () -> Void
var body: some View {
ZStack {
//Dimmed backgroud
GeometryReader { _ in
EmptyView()
}
.background(Color.gray.opacity(0.15))
.opacity(self.menuOpen ? 1 : 0)
.animation(Animation.easeIn.delay(0.25))
.onTapGesture {
self.toggleMenu()
}
//Menucontent
HStack {
MenuContent()
.frame(width: width)
.offset(x: menuOpen ? 0 : -width)
.animation(.default)
Spacer()
}
}
}
}
struct ContentView: View {
#State var menuOpen = false
var body: some View {
let drag = DragGesture()
.onEnded {
if $0.translation.width < -100 {
if menuOpen {
withAnimation {
print("Left")
menuOpen.toggle()
}
}
}
if $0.translation.width > -100 {
if !menuOpen {
withAnimation {
print("Right")
menuOpen.toggle()
}
}
}
}
ZStack {
if !menuOpen {
Button(action: {
self.menuOpen.toggle()
}, label: {
Text("Open Menu")
.bold()
.foregroundColor(Color.white)
.frame(width: 200, height: 50, alignment: /*#START_MENU_TOKEN#*/.center/*#END_MENU_TOKEN#*/)
.background(Color(.systemBlue))
})
}
SideMenu(width: UIScreen.main.bounds.width/1.6, menuOpen: menuOpen, toggleMenu: toggleMenu)
}
.edgesIgnoringSafeArea(.all)
.gesture(drag)
}
func toggleMenu(){
menuOpen.toggle()
}
}
struct ContentView_Previews: PreviewProvider {
static var previews: some View {
ContentView()
}
}
The on tap command from the above code:
.onTapGesture {
controllView(clickedview: items.text)
}
HomeViewController.swift
import UIKit
import WebKit
class HomeViewController: UIViewController, WKNavigationDelegate {
var webView: WKWebView!
override func loadView() {
webView = WKWebView()
webView.navigationDelegate = self
view = webView
}
override func viewDidLoad() {
super.viewDidLoad()
let url = URL(string: "https://developer.apple.com")!
webView.load(URLRequest(url: url))
}
}
You'll need a couple of ingredients:
A way to store the state of the currently active view
A way to communicate the state between your menu and main content view
For the first one, I made an enum that listed the different types of views (ViewType) and added it to your MenuItem model.
For the second, you can pass state via a #Binding from parent to child views and back up the chain.
struct MenuItem: Identifiable {
var id = UUID()
let text: String
let viewType : ViewType
}
enum ViewType {
case home, example1, example2, example3
}
struct MenuContent: View{
#Binding var activeView : ViewType
let items: [MenuItem] = [
MenuItem(text: "Home", viewType: .home),
MenuItem(text: "Example1", viewType: .example1),
MenuItem(text: "Example2", viewType: .example2),
MenuItem(text: "Example3", viewType: .example3)
]
var body: some View {
ZStack {
Color(UIColor(red: 33/255.0, green: 33/255.0, blue: 33/255.0, alpha: 1))
VStack(alignment: .leading, spacing: 0) {
ForEach(items) { item in
HStack {
Text(item.text)
.bold()
.font(.system(size: 20))
.multilineTextAlignment(.leading)
.foregroundColor(Color.white)
Spacer()
}
.onTapGesture {
activeView = item.viewType
}
.padding()
Divider()
}
Spacer()
}
.padding(.top, 40)
}
}
}
struct SideMenu: View {
let width: CGFloat
let menuOpen: Bool
let toggleMenu: () -> Void
#Binding var activeView : ViewType
var body: some View {
ZStack {
//Dimmed backgroud
GeometryReader { _ in
EmptyView()
}
.background(Color.gray.opacity(0.15))
.opacity(self.menuOpen ? 1 : 0)
.animation(Animation.easeIn.delay(0.25))
.onTapGesture {
self.toggleMenu()
}
//Menucontent
HStack {
MenuContent(activeView: $activeView)
.frame(width: width)
.offset(x: menuOpen ? 0 : -width)
.animation(.default)
Spacer()
}
}
}
}
struct ContentView: View {
#State private var menuOpen = false
#State private var activeView : ViewType = .home
var body: some View {
let drag = DragGesture()
.onEnded {
if $0.translation.width < -100 {
if menuOpen {
withAnimation {
print("Left")
menuOpen.toggle()
}
}
}
if $0.translation.width > -100 {
if !menuOpen {
withAnimation {
print("Right")
menuOpen.toggle()
}
}
}
}
ZStack {
VStack {
if !menuOpen {
Button(action: {
self.menuOpen.toggle()
}, label: {
Text("Open Menu")
.bold()
.foregroundColor(Color.white)
.frame(width: 200, height: 50, alignment: .center)
.background(Color(.systemBlue))
})
}
switch activeView {
case .home:
HomeViewControllerRepresented()
case .example1:
Text("Example1")
case .example2:
Text("Example2")
case .example3:
Text("Example3")
}
}
SideMenu(width: UIScreen.main.bounds.width/1.6,
menuOpen: menuOpen,
toggleMenu: toggleMenu,
activeView: $activeView)
.edgesIgnoringSafeArea(.all)
}
.gesture(drag)
}
func toggleMenu(){
menuOpen.toggle()
}
}
struct HomeViewControllerRepresented : UIViewControllerRepresentable {
func makeUIViewController(context: Context) -> HomeViewController {
HomeViewController()
}
func updateUIViewController(_ uiViewController: HomeViewController, context: Context) {
}
}

Creating a custom alertSheet in SwiftUI

Swift 5.x iOS 13/14
Trying to build a custom action sheet and mystified as to why this slides from the left and then up when I am telling it to simply slide from the bottom or at least I thought that was what I was asking.
import SwiftUI
struct ContentView: View {
#State private var showingCustomSheet = false
var body: some View {
ZStack {
Button(action: {
self.showingCustomSheet.toggle()
}) {
Text("Fire")
.font(.largeTitle)
.foregroundColor(Color.red)
}
if showingCustomSheet {
CustomAlertSheet(showingCustomSheet: $showingCustomSheet)
}
}
}
}
struct CustomAlertSheet: View {
#Binding var showingCustomSheet: Bool
#State var showEscape = false
var body: some View {
VStack {
Spacer().onAppear {
withAnimation(.linear(duration: 2)) {
showEscape.toggle()
}
}
if showEscape {
Rectangle()
.fill(Color.red)
.frame(width: 256, height: 128)
.transition(.move(edge: .bottom))
.animation(.default)
}
}
}
}
Here is a solution - removed redundant things and some small fixes... Tested with Xcode 12 / iOS 14.
struct ContentView: View {
#State private var showingCustomSheet = false
var body: some View {
ZStack {
Button(action: {
self.showingCustomSheet.toggle()
}) {
Text("Fire")
.font(.largeTitle)
.foregroundColor(Color.red)
}
CustomAlertSheet(showingCustomSheet: $showingCustomSheet)
}
}
}
struct CustomAlertSheet: View {
#Binding var showingCustomSheet: Bool
var body: some View {
VStack {
Spacer()
if showingCustomSheet {
Rectangle()
.fill(Color.red)
.frame(width: 256, height: 128)
.transition(.move(edge: .bottom))
}
}
.animation(.default, value: showingCustomSheet)
}
}

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