How can you build something like the animated shutter button in the camera app in SwiftUI?
// SwiftUIPlayground
// https://github.com/ralfebert/SwiftUIPlayground/
import SwiftUI
struct CameraButtonView: View {
#State var recording = false
var action: ((_ recording: Bool) -> Void)?
var body: some View {
ZStack {
Circle()
.stroke(lineWidth: 6)
.foregroundColor(.white)
.frame(width: 65, height: 65)
RoundedRectangle(cornerRadius: recording ? 8 : self.innerCircleWidth / 2)
.foregroundColor(.white)
.frame(width: self.innerCircleWidth, height: self.innerCircleWidth)
}
.animation(.linear(duration: 0.2))
.padding(20)
.onTapGesture {
withAnimation {
self.recording.toggle()
self.action?(self.recording)
}
}
}
var innerCircleWidth: CGFloat {
self.recording ? 32 : 55
}
}
struct CameraButtonView_Previews: PreviewProvider {
static var previews: some View {
Group {
CameraButtonView(recording: false)
.previewLayout(PreviewLayout.sizeThatFits)
.previewDisplayName("not recording")
.background(Color.gray)
CameraButtonView(recording: true)
.previewLayout(PreviewLayout.sizeThatFits)
.previewDisplayName("recording")
.background(Color.gray)
ZStack {
Image("turtlerock")
.resizable()
.aspectRatio(contentMode: .fit)
HStack {
Spacer()
CameraButtonView()
}
}
}
}
}
Related
I'm new on SwiftUI and I don't know how to manage my views.
I have this code:
import SwiftUI
struct ContentView: View {
#State private var email: String = ""
#State private var passord: String = ""
var body: some View {
ZStack {
Image("corner")
.resizable()
.scaledToFill()
VStack {
VStack { //VStack1
TextField("Email", text: $email)
.frame(width: 300, height: 40)
.textFieldStyle(.roundedBorder)
.bold(true)
SecureField("Password", text: $passord)
.frame(width: 300, height: 40)
.textFieldStyle(.roundedBorder)
.bold(true)
Button {
//Do something
} label: {
Text("Forgot your password ?")
.underline()
.foregroundColor(.white)
}
}
VStack { // VStack2
Text("Not registered ?")
.font(.title2)
.foregroundColor(.white)
Button("Sign up") {}
.frame(width: 200, height: 37)
.foregroundColor(.white)
.background(Color(.orange))
.cornerRadius(20)
}
}
}
}
}
I want to place the VStack2 in the bottom of the screen and keep the VStack1 on the center of the screen.
How I can do that. I've try to search but I don't find the solution on StackOverflow.
I tried to play with Spacer() and padding() but I have not a good result.
Screen
A simple way to do this would be to add VStack1 to the ZStack which will place it in the centre of the screen. Then add wrap VStack2 in another VStack with a Spacer to push it to the bottom of the screen, e.g.
ZStack {
Image("corner")
VStack { //VStack1
// etc
}
VStack {
Spacer()
VStack { // VStack2
// etc
}
}
}
Simple put
HStack {
Spacer()
VStack {
Text("Centered")
}
Spacer()
}
import SwiftUI
struct ContentView: View {
#State private var email: String = ""
#State private var passord: String = ""
var body: some View {
VStack {
Spacer()
middleView()
Spacer()
bottomView()
.paddind(.bottom, 12)
}
.ignoresSafeArea()
.background {
Image("corner")
.resizable()
.scaledToFill()
}
}
func middleView() -> some View {
VStack(spacing: 20) {
TextField("Email", text: $email)
.frame(width: 300, height: 40)
.textFieldStyle(.roundedBorder)
.bold(true)
SecureField("Password", text: $passord)
.frame(width: 300, height: 40)
.textFieldStyle(.roundedBorder)
.bold(true)
Button {
//Do something
} label: {
Text("Forgot your password ?")
.underline()
.foregroundColor(.white)
}
}
}
func bottomView() -> some View() {
VStack {
Text("Not registered ?")
.font(.title2)
.foregroundColor(.white)
Button("Sign up") {}
.frame(width: 200, height: 37)
.foregroundColor(.white)
.background(Color(.orange))
.cornerRadius(20)
}
}
}
I want to recreate system picker behavioral with two options in wheels with SwiftUI and faced ton of problem. Some of this I solved but some still unsolved. I have pop-ups with different views inside. One of the view it's a DatePicker with displayedComponents: .hourAndMinute. And other one is two Pickers inside HStack. My question is how to make Pickers make look like in system: without white spacing between?
struct MultyPicker: View {
#State var value = 1
#State var value2 = 1
var body: some View {
ZStack(alignment: .bottom) {
Color.black.opacity(0.5)
ZStack {
VStack {
Text("Header")
.font(.title3)
.fontWeight(.bold)
HStack(spacing: 0) {
Picker(selection: $value, label: Text("")) {
ForEach(1..<26) { number in
Text("\(number)")
.tag("\(number)")
}
}
.pickerStyle(WheelPickerStyle())
.compositingGroup()
.clipped(antialiased: true)
Picker(selection: $value2, label: Text("")) {
ForEach(25..<76) { number in
Text("\(number)")
.tag("\(number)")
}
}
.pickerStyle(WheelPickerStyle())
.compositingGroup()
.clipped(antialiased: true)
}
}
.padding()
.background(
RoundedRectangle(cornerRadius: 34)
.foregroundColor(.white)
)
}
.padding(.horizontal)
.padding(.bottom, 50)
}
.edgesIgnoringSafeArea([.top, .horizontal])
}
}
// This extension for correct touching area
extension UIPickerView {
open override var intrinsicContentSize: CGSize {
return CGSize(width: UIView.noIntrinsicMetric, height: super.intrinsicContentSize.height)
}
}
Want to achive looks like that with one grey line in selected value
//
// Test2.swift
// Test
//
// Created by Serdar Onur KARADAĞ on 26.08.2022.
//
import SwiftUI
struct Test2: View {
#State var choice1 = 0
#State var choice2 = 0
var body: some View {
ZStack {
Rectangle()
.fill(.gray.opacity(0.2))
.cornerRadius(30)
.frame(width: 350, height: 400)
Rectangle()
.fill(.white.opacity(1))
.cornerRadius(30)
.frame(width: 300, height: 350)
VStack {
Text("HEADER")
HStack(spacing: 0) {
Picker(selection: $choice1, label: Text("C1")) {
ForEach(0..<10) { n in
Text("\(n)").tag(n)
}
}
.pickerStyle(.wheel)
.frame(minWidth: 0)
.clipped()
Picker(selection: $choice2, label: Text("C1")) {
ForEach(0..<10) { n in
Text("\(n)").tag(n)
}
}
.pickerStyle(.wheel)
.frame(minWidth: 0)
.clipped()
}
}
}
}
}
struct Test2_Previews: PreviewProvider {
static var previews: some View {
Test2()
}
}
SwiftUI multi-component Picker basically consists of several individual Picker views arranged horizontally. Therefore, we start by creating an ordinary Picker view for our first component. I am using Xcode version 13.4.1(iOS 15.0).
import SwiftUI
struct ContentView: View {
#State var hourSelect = 0
#State var minuteSelect = 0
var hours = [Int](0..<24)
var minutes = [Int](0..<60)
var body: some View {
ZStack {
Color.black
.opacity(0.5)
.ignoresSafeArea()
.preferredColorScheme(.light)
Rectangle()
.fill(.white.opacity(1))
.cornerRadius(30)
.frame(width: 300, height: 350)
VStack {
Text("Header")
HStack(spacing: 0) {
Picker(selection: $hourSelect, label: Text("")) {
ForEach(0..<self.hours.count) { index in
Text("\(self.hours[index])").tag(index)
}
}
.pickerStyle(.wheel)
.frame(minWidth: 0)
.compositingGroup()
.clipped()
Picker(selection: $minuteSelect, label: Text("")) {
ForEach(0..<self.minutes.count) { index in
Text("\(self.minutes[index])").tag(index)
}
}
.pickerStyle(.wheel)
.frame(minWidth: 0)
.compositingGroup()
.clipped()
}
}
}
}
}
struct ContentView_Previews: PreviewProvider {
static var previews: some View {
ContentView()
}
}
Output :
I have successfully added a button to an image however when I click the button and the image moves via CGAffineTransform, the image moves but the button stays in the same place. When I click the space where the image used to be before the transform, the state toggle reacts. How do I get the button to move along with the image?
struct SliderView: View {
#State var partyType: Bool = false
var body: some View {
ZStack{
GeometryReader{ geo in
VStack(alignment: .leading){
Button(action: {
withAnimation (){
self.partyType.toggle();
}
}) {
Image("chevronPointer")
.clipped()
.modifier(SlideEffect(offset: CGSize(width: partyType ? geo.size.width - 70 : 0, height: 0.0)))
.animation(.smooth())
.padding(.horizontal)
}
Image("sliderLine")
.resizable()
.scaledToFit()
.frame(width: geo.size.width, alignment: /*#START_MENU_TOKEN#*/.center/*#END_MENU_TOKEN#*/)
}
}
.frame(height: 40)
}
}
}
struct SlideEffect: GeometryEffect {
var offset: CGSize
var animatableData: CGSize.AnimatableData {
get { CGSize.AnimatableData(offset.width, offset.height) }
set { offset = CGSize(width: newValue.first, height: newValue.second) }
}
public func effectValue(size: CGSize) -> ProjectionTransform {
return ProjectionTransform(CGAffineTransform(translationX: offset.width, y: offset.height))
}
}
struct SliderView_Previews: PreviewProvider {
static var previews: some View {
SliderView()
}
}
Just move the modifier outside the button.
Button(action: {
withAnimation(){
self.partyType.toggle()
}
}) {
Image(systemName: "chevron.up")
.clipped()
.animation(.default)
.padding(.horizontal)
}
.modifier(SlideEffect(offset: CGSize(width: partyType ? geo.size.width - 70 : 0, height: 0.0))) /// here!
I would like to have one view in the vertical center of the screen, one view at the top of the screen and one view vertically centered between these two views like so:
This took me 5min to do on a storyboard but I don't seem to find a way to do it in SwiftUI 🙃.
I already tried with multiple zstacks, vstacks, multiple custom alignments but this is the closest I got:
struct SelectionView: View {
var body: some View {
ZStack(alignment: .myAlignment) {
Color.green
.edgesIgnoringSafeArea(.all)
VStack {
Image(systemName: "clock")
.resizable()
.foregroundColor(.white)
.aspectRatio(contentMode: .fit)
.frame(width: 156, height: 80)
// Spacer()
Text("My\nmultiline label")
.multilineTextAlignment(.center)
.font(.title)
.foregroundColor(.white)
// Spacer()
VStack(spacing: 16) {
RoundedRectangle(cornerRadius: 5).fill(Color.white).frame(height: 79)
RoundedRectangle(cornerRadius: 5).fill(Color.white).frame(height: 79)
}
.alignmentGuide(VerticalAlignment.myAlignment) { dimension in
dimension[VerticalAlignment.center]
}
.layoutPriority(1)
}
.padding([.leading, .trailing], 24)
}
}
}
struct SelectionView_Previews: PreviewProvider {
static var previews: some View {
LanguageSelectionView()
}
}
// MARK
extension HorizontalAlignment {
enum MyHorizontal: AlignmentID {
static func defaultValue(in d: ViewDimensions) -> CGFloat
{ d[HorizontalAlignment.center] }
}
static let myAlignment =
HorizontalAlignment(MyHorizontal.self)
}
extension VerticalAlignment {
enum MyVertical: AlignmentID {
static func defaultValue(in d: ViewDimensions) -> CGFloat
{ d[VerticalAlignment.center] }
}
static let myAlignment = VerticalAlignment(MyVertical.self)
}
extension Alignment {
static let myAlignment = Alignment(horizontal: .myAlignment,
vertical: .myAlignment)
}
I'm keeping the GeometryReader as a last resort as it feels like a too drastic measure for this seemingly simple layout..
I guess I'm approaching this in some wrong way (still too much UIKit/Constraints in my head)..
Here is possible solution. Tested with Xcode 12 / iOS 14
struct SelectionView: View {
var body: some View {
ZStack {
Color.green
.edgesIgnoringSafeArea(.all)
VStack(spacing: 16) {
Color.clear
.overlay(
VStack {
Image(systemName: "clock")
.resizable()
.foregroundColor(.white)
.aspectRatio(contentMode: .fit)
.frame(width: 156, height: 80)
Color.clear
.overlay(
Text("My\nmultiline label")
.multilineTextAlignment(.center)
.font(.title)
.foregroundColor(.white)
)
}
)
RoundedRectangle(cornerRadius: 5).fill(Color.white).frame(height: 79)
RoundedRectangle(cornerRadius: 5).fill(Color.white).frame(height: 79)
Color.clear
}
.padding([.leading, .trailing], 24)
}
}
}
I have a My Profile form in my app. In the form I have some buttons. Among them 5 buttons are used to present custom drop down menus to select Sax, Blood, Nationality, and so on. However, when I tap these buttons sometime they response some time don't. For example, if I tap them 10 time they response 2 or 3 times. Some time they work for long tap. I have spent days on this matter, but could not identify any problem in my code. Is there anyone who faced this sort of problems? Could anyone figure out what is the actual problem. By the way, all other buttons in my app working absolutely fine.
This is the code for first 3 buttons in red rectangle in the picture
import SwiftUI
struct FormPartTwoView: View {
#Binding var gender: String
#Binding var blood: String
#Binding var nationality: String
#Binding var showingGenderPicker: Bool
#Binding var showingBloodGroupPicker: Bool
#Binding var showingNationalityPicker: Bool
#ObservedObject var userProfile = UserProfileViewModel()
#ObservedObject var userProfileUpdate = UserProfileUpdateViewModel()
var body: some View {
GeometryReader { geometry in
HStack {
Button(action: {
self.showingGenderPicker.toggle()
self.showingBloodGroupPicker = false
self.showingNationalityPicker = false
}) {
VStack {
TextField("Gender", text: self.$gender)
.padding(.horizontal)
.disabled(true)
}
.font(.system(size: 13))
.frame(height: 40)
.overlay(
RoundedRectangle(cornerRadius: 5)
.stroke(Color("Border2"), lineWidth: 1)
)
}
.buttonStyle(PlainButtonStyle())
Button(action: {
self.showingBloodGroupPicker.toggle()
self.showingGenderPicker = false
self.showingNationalityPicker = false
}) {
VStack {
TextField("Blood", text: self.$blood)
.padding(.horizontal)
.disabled(true)
}
.font(.system(size: 13))
.frame(height: 40)
.overlay(
RoundedRectangle(cornerRadius: 5)
.stroke(Color("Border2"), lineWidth: 1)
)
}
.buttonStyle(PlainButtonStyle())
Button(action: {
self.showingNationalityPicker.toggle()
self.showingGenderPicker = false
self.showingBloodGroupPicker = false
}) {
VStack {
TextField("Nationality", text: self.$nationality)
.padding(.horizontal)
.disabled(true)
}
.font(.system(size: 13))
.frame(height: 40)
.overlay(
RoundedRectangle(cornerRadius: 5)
.stroke(Color("Border2"), lineWidth: 1)
)
}
.buttonStyle(PlainButtonStyle())
}
.frame(width: geometry.size.width, height: 40)
}
}
}
struct FormPartTwoView_Previews: PreviewProvider {
static var previews: some View {
FormPartTwoView(gender: .constant(""), blood: .constant(""), nationality: .constant(""), showingGenderPicker: .constant(false), showingBloodGroupPicker: .constant(false), showingNationalityPicker: .constant(false))
}
}
This is the code for second tow Buttons:
import SwiftUI
struct FormPartFiveView: View {
#Binding var district: String
#Binding var upazila: String
#Binding var postcode: String
#Binding var showingUpazilaPicker: Bool
#Binding var showingDistrictPicker: Bool
#ObservedObject var userProfileUpdate = UserProfileUpdateViewModel()
var body: some View {
GeometryReader { geometry in
HStack {
Button(action: {
self.showingDistrictPicker.toggle()
self.showingUpazilaPicker = false
}) {
VStack {
Text("\(self.district == "" ? "District" : self.district)")
.foregroundColor(self.district == "" ? Color.gray : Color.black)
.padding(.horizontal)
}
.font(.system(size: 13))
.frame(width: geometry.size.width/3.2, height: 40)
.overlay(
RoundedRectangle(cornerRadius: 5)
.stroke(Color("Border2"), lineWidth: 1)
)
}
.buttonStyle(PlainButtonStyle())
Button(action: {
self.showingUpazilaPicker.toggle()
self.showingDistrictPicker = false
}) {
VStack {
Text("\(self.upazila == "" ? "Upazila" : self.upazila)")
.foregroundColor(self.upazila == "" ? Color.gray : Color.black)
.padding(.horizontal)
}
.font(.system(size: 13))
.frame(width: geometry.size.width/3.2, height: 40)
.overlay(
RoundedRectangle(cornerRadius: 5)
.stroke(Color("Border2"), lineWidth: 1)
)
}
.buttonStyle(PlainButtonStyle())
VStack {
TextField("Postcode", text: self.$postcode)
.padding(.horizontal)
}
.font(.system(size: 13))
.frame(width: 100, height: 40)
.overlay(
RoundedRectangle(cornerRadius: 5)
.stroke(Color("Border2"), lineWidth: 1)
)
}
.frame(width: geometry.size.width, height: 40)
}
}
}
struct FormPartFiveView_Previews: PreviewProvider {
static var previews: some View {
FormPartFiveView(district: .constant(""), upazila: .constant(""), postcode: .constant(""), showingUpazilaPicker: .constant(false), showingDistrictPicker: .constant(false))
}
}