I have a ScrollView with multiple Buttons. A Button contains a Image and a Text underneath.
As the images are pretty large I am using .scaledToFill and .clipped. And it seems that the 'clipped' part of the image is still clickable even if it's not shown.
In the video you see I am clicking on button 1 but button 2 is triggered.
This is my Coding. The Image is inside the View Card.
struct ContentView: View {
#State var useWebImage = false
#State var isSheetShowing = false
#State var selectedIndex = 0
private let images = [
"https://images.unsplash.com/photo-1478368499690-1316c519df07?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=crop&w=2706&q=80",
"https://images.unsplash.com/photo-1507154258-c81e5cca5931?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=crop&w=2600&q=80",
"https://images.unsplash.com/photo-1513310719763-d43889d6fc95?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=crop&w=2734&q=80",
"https://images.unsplash.com/photo-1585766765962-28aa4c7d719c?ixlib=rb-1.2.1&auto=format&fit=crop&w=2734&q=80",
"https://images.unsplash.com/photo-1485970671356-ff9156bd4a98?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=crop&w=2734&q=80",
"https://images.unsplash.com/photo-1585607666104-4d5b201d6d8c?ixlib=rb-1.2.1&auto=format&fit=crop&w=2700&q=80",
"https://images.unsplash.com/photo-1577702066866-6c8897d06443?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=crop&w=2177&q=80",
"https://images.unsplash.com/photo-1513809491260-0e192158ae44?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=crop&w=2736&q=80",
"https://images.unsplash.com/photo-1582092723055-ad941d1db0d4?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=crop&w=2700&q=80",
"https://images.unsplash.com/photo-1478264635837-66efba4b74ba?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjF9&auto=format&fit=crop&w=2682&q=80"
]
var body: some View {
NavigationView {
ScrollView {
VStack(spacing: 40) {
Text(useWebImage ? "WebImage is used." : "SwiftUI Image is used")
.font(.system(size: 18))
.bold()
.kerning(0.5)
.padding(.top, 20)
Toggle(isOn: $useWebImage) {
Text("Use WebImage")
.font(.system(size: 18))
.bold()
.kerning(0.5)
.padding(.top, 20)
}
ForEach(0..<images.count) { index in
Button(action: {
self.selectedIndex = index
self.isSheetShowing.toggle()
}) {
Card(imageUrl: self.images[index], index: index, useWebImage: self.$useWebImage)
}
.buttonStyle(PlainButtonStyle())
}
}
.padding(.horizontal, 20)
.sheet(isPresented: self.$isSheetShowing) {
DestinationView(imageUrl: self.images[self.selectedIndex], index: self.selectedIndex, useWebImage: self.$useWebImage)
}
}
.navigationBarTitle("Images")
}
}
}
struct Card: View {
let imageUrl: String
let index: Int
#Binding var useWebImage: Bool
var body: some View {
VStack {
if useWebImage {
WebImage(url: URL(string: imageUrl))
.resizable()
.indicator(.activity)
.animation(.easeInOut(duration: 0.5))
.transition(.fade)
.scaledToFill()
.frame(minWidth: 0, maxWidth: .infinity, minHeight: 250, maxHeight: 250, alignment: .center)
.cornerRadius(12)
.clipped()
} else {
Image("image\(index)")
.resizable()
.aspectRatio(contentMode: .fill)
.frame(minWidth: 0, maxWidth: .infinity, minHeight: 250, maxHeight: 250, alignment: .center)
.cornerRadius(12)
.clipped()
}
HStack {
Text("Image #\(index + 1) (\(useWebImage ? "WebImage" : "SwiftUI Image"))")
.font(.system(size: 18))
.bold()
.kerning(0.5)
Spacer()
}
}
.padding(2)
.border(Color(.systemRed), width: 2)
}
}
Do you have an idea how to fix this issue?
I already tried to use .resizable(resizingMode: .tile) but I need to shrink the image before I could use just a tile.
For detailed information you can also find the project on GitHub GitHub Project
I would appreciate your help a lot.
The .clipped affects only drawing, and by-default Button has all content clickable not depending what it is.
So if you want make your button clickable only in image area, you have to limit hit testing only to its rect explicitly and disable everything else.
Here is a demo of possible approach. Tested with Xcode 11.4 / iOS 13.4.
Demo code (simplified variant of your snapshot):
struct ButtonCard: View {
var body: some View {
VStack {
Image("sea")
.resizable()
.aspectRatio(contentMode: .fill)
.frame(minWidth: 0, maxWidth: .infinity, minHeight: 250, maxHeight: 250, alignment: .center)
.cornerRadius(12)
.contentShape(Rectangle()) // << define clickable rect !!
.clipped()
HStack {
Text("Image #1")
.font(.system(size: 18))
.bold()
.kerning(0.5)
Spacer()
}.allowsHitTesting(false) // << disable label area !!
}
.padding(2)
.border(Color(.systemRed), width: 2)
}
}
struct TestClippedButton: View {
var body: some View {
Button(action: { print(">> tapped") }) {
ButtonCard()
}.buttonStyle(PlainButtonStyle())
}
}
Related
I'm trying to replicate this UI in SwiftUI using a Grid.
I created the cell like this.
struct MenuButton: View {
let title: String
let icon: Image
var body: some View {
Button(action: {
print(#function)
}) {
VStack {
icon
.resizable()
.aspectRatio(contentMode: .fit)
.frame(width: 60, height: 60)
Text(title)
.foregroundColor(.black)
.font(.system(size: 20, weight: .bold))
.multilineTextAlignment(.center)
.padding(.top, 10)
}
}
.frame(width: 160, height: 160)
.overlay(RoundedRectangle(cornerRadius: 10).stroke(Color.fr_primary, lineWidth: 0.6))
}
}
And the Grid like so.
struct LoginUserTypeView: View {
private let columns = [
GridItem(.flexible(), spacing: 20),
GridItem(.flexible(), spacing: 20)
]
var body: some View {
ScrollView {
LazyVGrid(columns: columns, spacing: 30) {
ForEach(Menu.UserType.allCases, id: \.self) { item in
MenuButton(title: item.description, icon: Image(item.icon))
}
}
.padding(.horizontal)
.padding()
}
}
}
But on smaller screens like the iPod, the cells are overlapped.
On bigger iPhone screens, still the spacing is not correct.
What adjustments do I have to make so that in every screen size, the cells would show in a proper square shape and equal spacing on all sides?
MenuButton has fixed width and height, thats why it behaves incorrectly.
You could utilise .aspectRatio and .frame(maxWidth: .infinity, maxHeight: .infinity) for this:
struct MenuButton: View {
let title: String
let icon: Image
var body: some View {
Button(action: {
print(#function)
}) {
VStack(spacing: 10) {
icon
.resizable()
.aspectRatio(contentMode: .fit)
.frame(maxWidth: 60, maxHeight: 60)
Text(title)
.foregroundColor(.black)
.font(.system(size: 20, weight: .bold))
.multilineTextAlignment(.center)
}
.padding()
}
.frame(maxWidth: .infinity, maxHeight: .infinity)
.aspectRatio(1, contentMode: .fill)
.overlay(RoundedRectangle(cornerRadius: 10).stroke(Color. fr_primary, lineWidth: 0.6))
}
}
I've been trying to change the layout to the WatchLandmarks tutorial that Apple provides for making SwiftUI apps for the watch (https://developer.apple.com/tutorials/swiftui/creating-a-watchos-app) and I can't figure out why the images aren't loading for me. It works just fine in the completed tutorial code, and the only differences are in my changes to the layout of LandmarkList and LandmarkRow.
changes to LandmarkList:
struct LandmarkList<DetailView: View>: View {
#EnvironmentObject private var userData: UserData
let detailViewProducer: (Landmark) -> DetailView
var body: some View {
VStack(alignment: .leading){
Text(" Landmarks")
.font(.system(size: 16))
ScrollView(.horizontal, showsIndicators:false){
HStack(alignment: .center){
ForEach(userData.landmarks) { landmark in
// if !self.userData.showFavoritesOnly || landmark.isFavorite {
NavigationLink(
destination: self.detailViewProducer(landmark).environmentObject(self.userData)) {
LandmarkRow(landmark: landmark)
.frame( maxWidth: 70, maxHeight: 70, alignment: .leading)
}
// }
}
}
}.frame(minWidth: 0, maxWidth: .infinity, maxHeight: 100, alignment: .center)//.frame(width:150, height: 100)
Text(self.userData.landmarks[0].name)
.frame(minWidth: 0, maxWidth: .infinity, minHeight: 24, alignment: .center)
HStack(spacing: 32){
Button(action: { print("first button") }) {
Text("P")
}.frame(minWidth: 20, maxWidth:50, minHeight: 20, maxHeight:50)
.background(Color.orange)
.clipShape(Circle())
.overlay(Circle().stroke(Color.clear, lineWidth: 4))
.shadow(radius: 10)
Button(action: { print("second button") }) {
Text("S")
}.frame(minWidth: 20, maxWidth:50, minHeight: 20, maxHeight:50)
.background(Color.orange)
.clipShape(Circle())
.overlay(Circle().stroke(Color.clear, lineWidth: 4))
.shadow(radius: 10)
}.frame(minWidth: 0, maxWidth: .infinity, maxHeight: 100, alignment: .center)
// List {
// Toggle(isOn: $userData.showFavoritesOnly) {
// Text("Show Favorites Only")
// }
//
// ForEach(userData.landmarks) { landmark in
// if !self.userData.showFavoritesOnly || landmark.isFavorite {
// NavigationLink(
// destination: self.detailViewProducer(landmark).environmentObject(self.userData)) {
// LandmarkRow(landmark: landmark)
// }
// }
// }
// }
// .navigationBarTitle(Text("Landmarks"))
}.frame(maxWidth: .infinity, minHeight:200, maxHeight: .infinity, alignment: .leading)
}
}
changes to LandmarkRow
struct LandmarkRow: View {
var landmark: Landmark
var body: some View {
HStack {
landmark.image
.resizable()
.frame(width: 50, height: 50)
.cornerRadius(8.0)
// Text(landmark.name)
// Spacer()
//
// if landmark.isFavorite {
// Image(systemName: "star.fill")
// .imageScale(.medium)
// .foregroundColor(.yellow)
// }
}
}
}
What am I doing wrong?
Try to call .renderingMode(.original) on the image.
There are two types of rendering modes for your image assets:
Original
Template
Original mode will portray the image asset as it is, while the template mode will turn all the non-transparent parts of the image into one color that you can set. The default color is black.
Note: No overview available is available in Apple documentation.
In this tutorial, you’ll learn what rendering mode in SwiftUI is and how to use it.
I'm trying to add a new view inside the Scroll View that contains a button every time that I click in the blue button in the bottom
]1
Here i create the scroll view with 2 buttons, and want to add more after I click in the button on the right
HStack{
ScrollView(.horizontal, content: {
HStack{
PageStep()
PageStep()
}
})
Button(action: {
self.addNewStep = true
}) {
Image(systemName: "plus.square")
.frame(width: 75, height: 75)
.overlay(
RoundedRectangle(cornerRadius: 10)
.stroke(Color.blue, lineWidth: 5)
)
}.buttonStyle(PlainButtonStyle()).padding(.trailing, 10)
}
.padding(.leading, 10)
.frame(minWidth: 0, maxWidth: UIScreen.main.bounds.width, minHeight: 80, alignment: .bottom)
.foregroundColor(Color.blue)
struct PageStep: View {
var stepPossition = String()
var body: some View {
Button(action: {
print("Entrou")
}){
Rectangle()
.fill(Color.red)
.frame(width: 75, height: 75)
.cornerRadius(10)
}
}
}
Here is possible approach. Tested with Xcode 11.4.
struct ContentView: View {
#State private var steps = 2 // pages counter
var body: some View {
HStack{
ScrollView(.horizontal, content: {
HStack{
// create available pages
ForEach(0..<steps, id: \.self) { i in
PageStep(stepPossition: "\(i)").id(i) // inject
}
}
})
Button(action: {
self.steps += 1 // << add next page
}) {
Image(systemName: "plus.square")
.frame(width: 75, height: 75)
.overlay(
RoundedRectangle(cornerRadius: 10)
.stroke(Color.blue, lineWidth: 5)
)
}.buttonStyle(PlainButtonStyle()).padding(.trailing, 10)
}
.padding(.leading, 10)
.frame(minWidth: 0, maxWidth: UIScreen.main.bounds.width, minHeight: 80, alignment: .bottom)
.foregroundColor(Color.blue)
}
}
struct PageStep: View {
var stepPossition: String
var body: some View {
Button(action: {
print("Entrou")
}){
Rectangle()
.fill(Color.red)
.frame(width: 75, height: 75)
.cornerRadius(10)
}
}
}
import SwiftUI
struct ContentView: View {
#State private var isActive : Bool = false
var body: some View {
VStack {
Image("home-img")
.resizable()
.aspectRatio(contentMode:.fill)
.edgesIgnoringSafeArea(.top)
.edgesIgnoringSafeArea(.bottom)
.overlay(Image("round")
.resizable()
.frame(width: 350, height: 350 , alignment: .center)
.overlay(Image("girl-img")
.resizable()
.frame(width: 150, height: 150, alignment: .center)
)
.overlay(Image("video")
.resizable()
.frame(width: 100, height: 100)
.offset(y: -200)
.padding(.bottom, -70)
).onTapGesture(count: 1) {
NavigationView {
NavigationLink(destination: SelecteImageView(), isActive: self.$isActive) {
Text("")
}
}
}
}
}
}
What I want to do is when I tap on Image("Video") it should redirect me to a new screen using NavigationView. Normally, with button, it redirects to a new screen, but here the problem is that the image is in overlay. Thank you in advance.
You need to put your Image Views inside the NavigationLink label.
The navigationLink acts like Button and it gets the default button style with blue color. So change the default button style to plain using the bellow modifier:
import SwiftUI
struct ContentView: View {
#State private var isActive : Bool = false
var body: some View {
NavigationView {
NavigationLink(destination: SelecteImageView(), isActive: self.$isActive) {
VStack {
Image("home-img") //.renderingMode(.original)
.resizable()
.aspectRatio(contentMode:.fill)
.edgesIgnoringSafeArea(.top)
.edgesIgnoringSafeArea(.bottom)
.clipped() //Here shows your Image only inside the frame
.overlay(Image("round") //.renderingMode(.original)
.resizable()
.frame(width: 350, height: 350 , alignment: .center))
.overlay(Image("girl-img") //.renderingMode(.original)
.resizable()
.frame(width: 150, height: 150, alignment: .center)
)
.overlay(Image("video") //.renderingMode(.original)
.resizable()
.frame(width: 100, height: 100)
.offset(y: -200)
.padding(.bottom, -70)
)
}
}.buttonStyle(PlainButtonStyle())
}
}
}
Or, you can give your Image views .renderingMode(.original) modifier if you are only using Images, and remove .buttonStyle(PlainButtonStyle()) from above code.
Please add tap gesture over here
struct Contentview: View {
#State var isNavigate :Bool = false
var body: some View {
NavigationView{
VStack{
NavigationLink(destination: LoginView()) {
Image("Birthday")
.resizable()
.aspectRatio(contentMode:.fill)
.edgesIgnoringSafeArea(.top)
.edgesIgnoringSafeArea(.bottom)
.frame(width: 200, height: 200 , alignment: .center)
.overlay(Image("round")
.resizable()
.frame(width: 350, height: 350 , alignment: .center)
)
.overlay(Image("girl-img")
.resizable()
.frame(width: 150, height: 150, alignment: .center)
)
}
}
}
}
}
How can I center horizontally a View (Image) in an HStack? I want a button to be left aligned and the image to be centered horizontally the view.
Currently I have this structure:
VStack {
HStack {
Button(action: {
print("Tapped")
}, label: {
Image("left-arrow")
.resizable()
.frame(width: 30, height: 30, alignment: .leading)
}).padding(.leading, 20)
Spacer()
Image("twitter-logo")
.resizable()
.frame(width: 30, height: 30, alignment: .center)
}
Spacer()
}
Which is giving me this:
But I want to achieve this:
You can embed two HStack's in a ZStack and place spacers accordingly for the horizontal spacing. Embed all that in a VStack with a Spacer() to have everything pushed up to the top.
struct ContentView : View {
var buttonSize: Length = 30
var body: some View {
VStack {
ZStack {
HStack {
Button(action: {
}, label: {
Image(systemName: "star")
.resizable()
.frame(width: CGFloat(30), height: CGFloat(30), alignment: .leading)
}).padding(.leading, CGFloat(20))
Spacer()
}
HStack {
Image(systemName: "star")
.resizable()
.frame(width: CGFloat(30), height: CGFloat(30), alignment: .center)
}
}
Spacer()
}
}
}
Note: In the second HStack, the image should automatically be center aligned, but if it isn't, you can place a Spacer() before and after the image.
Edit: Added the VStack and Spacer() to move everything to the top like the OP wanted.
Edit 2: Removed padding on image because it caused the image to be slightly offset from the center. Since it is in its own HStack and center-aligned, it does not need padding.
Edit 3: Thanks to #Chris Prince in the comments, I decided to make a simple NavigationBar-esque custom view that you can provide left, center, and right arguments to create the effect that the OP desired (where each set of views are aligned independently of each other):
struct CustomNavBar<Left, Center, Right>: View where Left: View, Center: View, Right: View {
let left: () -> Left
let center: () -> Center
let right: () -> Right
init(#ViewBuilder left: #escaping () -> Left, #ViewBuilder center: #escaping () -> Center, #ViewBuilder right: #escaping () -> Right) {
self.left = left
self.center = center
self.right = right
}
var body: some View {
ZStack {
HStack {
left()
Spacer()
}
center()
HStack {
Spacer()
right()
}
}
}
}
Usage:
struct ContentView: View {
let buttonSize: CGFloat = 30
var body: some View {
VStack {
CustomNavBar(left: {
Button(action: {
print("Tapped")
}, label: {
Image(systemName: "star")
.resizable()
.frame(width: self.buttonSize, height: self.buttonSize, alignment: .leading)
}).padding()
}, center: {
Image(systemName: "star")
.resizable()
.frame(width: 30, height: 30, alignment: .center)
}, right: {
HStack {
Text("Long text here")
Image(systemName: "star")
.resizable()
.frame(width: 30, height: 30, alignment: .center)
.padding(.trailing)
}.foregroundColor(.red)
})
Spacer()
Text("Normal Content")
Spacer()
}
}
}
What's about saving button size to a property and add a negative padding to the image? And pay attention to an additional spacer after the image.
struct ContentView: View {
var buttonSize: Length = 30
var body: some View {
VStack {
HStack {
Button(action: {
print("Tapped")
}, label: {
Image(systemName: "star")
.resizable()
.frame(width: buttonSize, height: buttonSize, alignment: .leading)
})
Spacer()
Image(systemName: "star")
.resizable()
.frame(width: 30, height: 30, alignment: .center)
.padding(.leading, -buttonSize)
Spacer()
}
Spacer()
}
}
}
The result:
Easiest way for me:
ZStack(){
HStack{
Image("star").resizable().foregroundColor(.white).frame(width: 50, height: 50)
Spacer()
}
Image("star").resizable().font(.title).foregroundColor(.white).frame(width: 50, height: 50)
}
You center the view using position property try this code
Group{ // container View
Image("twitter-logo")
.resizable()
.frame(width: 30, height: 30, alignment: .center)
}.position(x: UIScreen.main.bounds.width/2)
the right way to center the Title like navigationbar:
HStack {
Spacer()
.overlay {
HStack {
Image(systemName: "star")
Spacer()
}
}
Text("Title")
Spacer()
.overlay {
HStack {
Spacer()
Image(systemName: "star")
}
}
}
You can place the view that you want to center into a VStack and then set the alignment to center. Make sure that you also set the frame(maxWidth: .infinity) or else it will be centering your view in the VStack but the VStack might not take up the entire width of the screen so you might not get the appearance you are trying to achieve.
To make it even easier, write it as a function that extends the View object
extension View {
func centerInParentView() -> some View {
VStack(alignment: .center) {
self
}
.frame(maxWidth: .infinity)
}
}
And then you can just call it as you would a view modifier i.e.
VStack {
HStack {
Button(action: {
print("Tapped")
}, label: {
Image("left-arrow")
.resizable()
.frame(width: 30, height: 30, alignment: .leading)
}).padding(.leading, 20)
Spacer()
Image("twitter-logo")
.resizable()
.frame(width: 30, height: 30, alignment: .center)
}
Spacer()
}
.centerInParentView()
Works every time for me
I have got an alternative solution. I used a hidden Image as placeholder.
HStack {
Image("left-arrow").padding()
Spacer()
Image("twitter-logo")
Spacer()
// placeholder to keep layout symmetric
Image("left-arrow").padding().hidden()
}
Of course you can replace the Images with Buttons or other Views as you prefer.
Here is what worked for me
HStack {
Image(systemName: "star.fill")
.frame(maxWidth: .infinity, alignment: .leading)
Image(systemName: "star.fill")
.frame(maxWidth: .infinity, alignment: .center)
Text("")
.frame(maxWidth: .infinity, alignment: .trailing)
}
.foregroundColor(.yellow)
Inspired by SwiftUI - How to align elements in left, center, and right within HStack?
Let me propose a different solution:
https://gist.github.com/buscarini/122516641cd0ee275dd367786ff2a736
It can be used like this:
HStack {
Color.red
.frame(width: 0, height: 50)
.layoutPriority(1)
GlobalHCenteringView {
Text("Hello, world!")
.lineLimit(1)
.background(Color.green)
}
.background(Color.yellow)
Color.red
.frame(width: 180, height: 50)
.layoutPriority(1)
}
}
This will center the child view in the screen if it fits, or leave it as is if it doesn't. It is currently using UIScreen, so it only works on iOS, but you could easily pass the screen or parent width to the constructor of the view, getting it from a GeometryReader or whatever.