I am currently learning SwiftUI and I followed this video to create a custom NavigationBar.
Learn how to create a custom navigation bar with a logo in SwiftUI framework and Xcode - Part 2
The buttons doesn't work when I click on it unless I don't use padding() and ignoreSafeArea(), but without using it, the navigationBar would appear on middle of the page. (I also tried use Spacer() but it didn't work)
Is there anyway to fix this issue?
Code for HomePage()
VStack{
NavigationBarView()
.padding(.horizontal, 15)
.padding(.bottom)
.padding(.top, UIApplication.shared.windows.first?.safeAreaInsets.top)
.shadow(color: Color.black.opacity(0.1), radius: 5, x: 0, y: 5)
.ignoresSafeArea(.all, edges: .top)
Code for NavigationBarView()
HStack{
NavigationLink(
destination: PersonalMenuPage()
,label: {
ZStack {
Image("Profile")
.renderingMode(.original)
.resizable()
.aspectRatio(contentMode: .fit)
.frame(width: 40, height: 40)
.padding(.horizontal, 10)
Circle()
.fill(Color.red)
.frame(width:14, height: 14, alignment: .center)
.offset(x: 13, y: -10)
}
}
)
}//: hStack
Here is sample output
Sample output
Related
Good day, beginner SwiftUI & iOS developer here.
I'm not quite sure how else I could've worded this question, but I'll try my best to explain what I would like to achieve.
Right now, I have a VStack that contains a WebImage and Text view, and this VStack is nested inside a HStack. The views inside the VStack are inside a ForEach loop and are generated dynamically with the data I fetch.
When I display these on a screen, all of these views appear in a single line, as shown below.
However I would like for there to only be max two views per "line", not all four of them stacked into a single line. Is there a way to achieve this?
Here is the code:
HStack(spacing: 20) {
ForEach(attViewModel.students, id: \.self) { student in
VStack {
WebImage(url: URL(string: student.photo))
.resizable()
.aspectRatio(contentMode: .fill)
.frame(width: 40, height: 40)
.clipShape(Circle())
.overlay(Circle().stroke(Color("DarkGreen"), lineWidth: 3))
.compositingGroup()
Text("\(student.name)")
.bold()
.compositingGroup()
CustomRadioButton()
}
.padding()
.overlay(RoundedRectangle(cornerRadius: 10)
.stroke(Color.orange, lineWidth: 2))
.shadow(radius: 7)
}
}
.frame(maxWidth: .infinity)
Here a possible approach for you:
struct ContentView: View {
let arrayOfStudents: [String] = ["jessy", "joy", "joly", "jack"]
var body: some View {
GeometryReader { proxy in
ScrollView(.horizontal) {
HStack(spacing: .zero) {
ForEach(arrayOfStudents, id: \.self) { student in
VStack {
Image(systemName: "person")
.resizable()
.aspectRatio(contentMode: .fit)
.frame(width: 40, height: 40)
.padding()
.clipShape(Circle())
.overlay(Circle().stroke(Color.green, lineWidth: 3))
Text(student)
.bold()
Circle()
.strokeBorder(style: .init(lineWidth: 2))
.frame(width: 10, height: 10)
}
.compositingGroup()
.padding()
.overlay(RoundedRectangle(cornerRadius: 10).stroke(Color.orange, lineWidth: 2))
.shadow(radius: 7)
.padding()
.frame(width: proxy.size.width/2.0)
}
}
}
.position(x: proxy.size.width/2.0, y: proxy.size.height/2.0)
}
}
}
I have a horizontal ScrollView and would like to provide a function that when the first element is not visible anymore an arrow should appear to signalize that there are some other elements.
I've tried the DragGesture() to read the translation.width but it seems to be buggy in combination with the ScrollView.
So I'm looking for a way to detect whether the ScrollView was scrolled and how far. Is there any way?
private let gridItems = [GridItem(.flexible())]
ScrollView(.horizontal, showsIndicators: false) {
HStack{
LazyHGrid(rows: gridItems){
ForEach(viewModel.imageOptions, id: \.self){ image in
ZStack {
Image(image)
.resizable()
.aspectRatio(contentMode: .fit)
.frame(width: 60, height: 60)
.background(Color.white)
.clipShape(Circle())
.background(
Circle()
.clipShape(Circle())
.shadow(color: Color.black.opacity(0.4), radius: 3, x: 5.0, y: 5.0)
)
.onTapGesture {
print("selected")
}
.padding(15)
Circle()
.strokeBorder(Color.orange, lineWidth: 5)
.frame(width: 70, height: 70)
}
}
}
}
}
}
I'm trying to add a User Image (button) next to the .navigationBarTitle, but with the code bellow, the image appears on top of the title alignment. (picture attached). Many thanks for your help!
.navigationBarTitle(Text("Watch"))
.navigationBarItems(trailing:
Image("User")
.resizable()
.aspectRatio(contentMode: .fill)
.frame(width: 36, height: 36)
.clipShape(Circle())
)
Image should be bottom - aligned to the text
This code produces this view:
struct ContentView: View {
var body: some View {
NavigationView {
List {
Text("Chocolate")
Text("Vanilla")
Text("Strawberry")
}.navigationBarTitle(Text("Watch"))
.navigationBarItems(trailing:
Image(systemName: "person.circle")
.resizable()
.aspectRatio(contentMode: .fill)
.frame(width: 36, height: 36)
.clipShape(Circle())
.padding(.top, 90)
)
}
}
}
There is a default space for the Items and a default space for the Text. Imagine it like two HStacks in a VStack. Where the Title is in the lower HStack and the items are in the upper one. There is no "real" way on getting in the lower one.
I'd recommend to create an own NavigationBar for your purposes.
Thanks #Simon, the best option for what I was looking for is to Add the User Icon to the Title (not NavBar) and apply an Offset of y: -55. When scrolling up the icon disappears under the NavBar. The same effect on the Apple TV app (mobile).` VStack(alignment: .leading) {
HStack {
Text("Children")
.font(.title)
.fontWeight(.bold)
.padding(.leading, 24)
.padding(.top, 20)
Spacer ()
Image("User")
.resizable()
.aspectRatio(contentMode: .fill)
.frame(width: 36, height: 36)
.clipShape(Circle())
.offset(y: -55)
.padding(.trailing, 24)[final result][1]`
I have a button but it seems to be clickable only in select areas. I have tried playing around with frames etc but to no avail.
Button(action: {
print("HELLO")
}){
Text("HELLO")
.foregroundColor(.red)
.font(.title)
.fontWeight(.light)
.frame(width: 300, height: 100, alignment: .center)
.background(Rectangle().stroke(Color.red, lineWidth: 1.0))
}
Try adding a .contentShape modifier:
Button(action:, label:)
.contentShape(RoundedRectangle(cornerRadius: 8))
I cannot figure out what compositingGroup() is. At first, I thought it is something like Merging layers in Photoshop. But it was not. Because .shadow() effects to the overlay and background views respectively even if I use .compositingGroup().
So far, I've found 2 differences when I use .compositingGroup()
Text doesn't have shadows.
The shadow size of the overlay view is slightly smaller than the above one.
What is the purpose of compositingGroup?
struct ContentView: View {
var body: some View {
VStack(spacing: 50) {
Text("Without\ncompositing")
.font(.largeTitle)
.bold()
.padding()
.foregroundColor(Color.white)
.background(RoundedRectangle(cornerRadius: 30).fill(Color.red))
.padding()
.padding()
.overlay(RoundedRectangle(cornerRadius: 30).stroke(lineWidth: 10))
.shadow(color: .blue, radius: 5)
Text("With\ncompositing")
.font(.largeTitle)
.bold()
.padding()
.foregroundColor(Color.white)
.background(RoundedRectangle(cornerRadius: 30).fill(Color.red))
.padding()
.padding()
.overlay(RoundedRectangle(cornerRadius: 30).stroke(lineWidth: 10))
.compositingGroup() // <--- I added .compositingGroup() here.
.shadow(color: .blue, radius: 5)
}
}
}
This modifier makes the following modifiers be applied to the view as a whole and not to each particular subview separately
Here's an example to better illustrate this:
struct ContentView: View {
let circles: some View = ZStack {
Circle()
.frame(width: 100, height: 100)
.foregroundColor(.red)
.offset(y: -25)
Circle()
.frame(width: 100, height: 100)
.foregroundColor(.blue)
.offset(x: -25, y: 25)
Circle()
.frame(width: 100, height: 100)
.foregroundColor(.green)
.offset(x: 25, y: 25)
}
var body: some View {
VStack(spacing: 100) {
circles
circles
.opacity(0.5)
circles
.compositingGroup()
.opacity(0.5)
}
}
}
So in your case the shadow is applied to the whole view rather than separately to the Text and overlaying RoundedRectangle
Use it when wanting to apply effects like opacity or shadow to a group of views and not each contained element by itself.
It seems like that .shadow() modifier will add both inner and outer shadow. It means that if the view is not "solid", for example, it has a "hole", .shadow() will add shadow like this:
RoundedRectangle(cornerRadius: 30)
.stroke(lineWidth: 10)
.frame(width: 300)
.shadow(color: .blue, radius: 5)
Click to see the image
So, if you do not want the inner shadow, you need to make your view be "solid", like this:
RoundedRectangle(cornerRadius: 30)
.stroke(lineWidth: 10)
.frame(width: 300)
.background(RoundedRectangle(cornerRadius: 30).fill(.white))
.shadow(color: .blue, radius: 5)
Click to see the image
However, something goes wrong again, the inner shadow doesn't disappear.
That's because I forgot to apply the .compositingGroup() modifier.
As #ramzesenok mentioned, .compositingGroup() makes the following modifiers be applied to the view as a whole and not to each particular subview separately.
So, change the code a little bit:
RoundedRectangle(cornerRadius: 30)
.stroke(lineWidth: 10)
.frame(width: 300)
.background(RoundedRectangle(cornerRadius: 30).fill(.white))
.compositingGroup()
.shadow(color: .blue, radius: 5)
Click to see the image
There is only outer shadow now.