I found out that "keyboardShortcut(_:)" was released in the new Xcode12, and I thought I could get events by typing them with the keyboard, but I don't know how to use it.
I'm sorry, but I'd like to hear more about how to use it with examples.
Thank you in advance for your help.
editing1.............
I found out that I can use keyboardShortcut to make the button action.
MYCODE
struct ContentView: View {
var body: some View {
Button("button"){
print("push_A")
}
.keyboardShortcut("a",modifiers: .option)
}
}
Do I have to place a myriad of buttons in order to use keybordShortcut?
Related
I am making an application in SwiftUI that involves answering yes or no questions. Because of this I have created a subview call YesOrNoView. This subview has two buttons, one labeled yes and the other labeled no. The view accepts a binding variable of question that returns true or false based on the users answer. It also accepts a binding variable of questionsAnswered and increments it whenever either button is pressed. This behavior works for most questions in the game, but for the final question I want it to execute custom logic to take the user to a different view. To do this I am trying to make the view accept a custom action/method that I can call from either buttons action logic. Ideally, the action would also be optional so that I don't have to pass it in the 99% percent of the time when I'm not using it.
How do I pass a function as an optional parameter into a view and then run that action when a button within said view is pressed?
I tried adding actions using
struct YesOrNoView<Content: Action>: View {
...
but it couldn't find action or Action within it's scope.
I also tried using
struct YesOrNoView<Content>: View {
But I got an error saying that the Content variables type could not be inferred.
Any help would be greatly appreciated.
It return clickAction back to the view
struct GenericButton<Title: StringProtocol>: View {
let title: Title
let action: () -> Void
var body: some View {
Button(action: action) {
Text(title)
}.frame(width: 200, height: 40)
}
}
}
Usage:
GenericButton("Button") {
// Button tapped action
}
I managed to figure it out with help from #JoakimDanielson. The trick is to pass in an empty function as the default.
var myFunction: () -> Void = {}
Thanks for the help everyone.
I Was following this tutorial (https://www.youtube.com/watch?v=GiCTgsH0dtk) and got this error anyone know a work around others in the comments having trouble with the same thing so i thought id help
Do you know the correct way to handle this new error for this piece of code?
NavigationLink(destination: SignUp(show: self.$show), isActive: self.$show) {
Text("")
}
.hidden()
Login(show: self.$show)
}
Error:
'init(destination:isActive:label:)' was deprecated in iOS 16.0: use NavigationLink(value:label:) inside a NavigationStack or NavigationSplitView
First, change your NavigationLink to NavigationStack.
And lastly, where your - if you have one - .navigationTitle("") goes (this is where NavigationView closes), Xcode is asking you to add a .navigationDestination() as following:
.navigationDestination(isPresented: $show) {
//Whatever View you want to display...
}
This alert, not error, happens because of iOS 16 and Apple's constant changes on the Swift and Swift's frameworks changes.
I've been implementing Redux in my SwiftUI Project successfully but struggle when it comes to handling bindings properly. I want to use the binding functionality of SwiftUI while also storing the information in the Redux State.
As you see this kind of contradicts itself since the state can't be bound two-way.
This is my current code
#State var tab: Tab = .tab1
TabView(selection: $tab) { ... }
Ideally it should be comfortably usable like this if it's possible. I am also open to other ideas, that's just what i initially came up with - it's far from perfect.
#State var store = ReduxStore(...)
TabView(selection: $store.state.tab) { ... }
I figured out how to handle such cases. The solution for me is a Binding like:
let tabBinding = Binding<Tab> (
get: { self.store.state.currentTab }, // return the value from the state
set: { self.store.dispatch(action: NavigationAction.updateTab(tab: $0)) } // send the action here
)
Although this probably could be beautified it works, is pretty straight forward and solves the problem of working with Bindings in Redux.
I'm trying to make a Picker with SwiftUI. I've follow a tutorial but don't have the same result. There is Ambiguous reference on the self.category.count and self.category[$0]. After one entire day, I still don't know how to fix it ...
import SwiftUI
struct Picker : View {
var category = ["Aucun", "BF Glaive", "Baguette", "Negatron", "Larme", "Ceinture", "Arc", "Cotte", "Spatule"]
#State private var selectedCategory = 0
var body: some View {
VStack {
Picker(selection: $selectedCategory, label: Text("Item")) {
ForEach(0 ..< self.category.count) {
Text(self.category[$0])
.tag($0)
}
}
Text("Selected : \(category[selectedCategory])")
}
}
}
To resolve name conflicts between modules, you can either:
Rename your Picker to something else.
Use the qualified (full) name:
SwiftUI.Picker(selection: $selectedCategory, label: Text("Item")) {
The error message Ambiguous reference to member 'count’ is misleading. What you have is a naming conflict between SwiftUI.Picker and your Picker struct. Just change the name of your struct to something other than Picker. For example:
struct CategoryPicker : View {
// ...
}
Alternatively, you can resolve the naming conflict between the modules by providing the fully qualified name for SwiftUI.Picker (as Sulthan pointed out):
SwiftUI.Picker(selection: $selectedCategory, label: Text("Item")) {
// ...
}
However, I wouldn’t advise this option unless your intention is to replace SwiftUI.Picker everywhere in your app. Your code includes the category array and a Text view, so it's unlikely this is what you're after.
If the app eventually needs OtherPicker with a SwiftUI.Picker and the module name is omitted again, it’ll be even more confusing to track down the error—and you’ve already spent an “entire day” on it. So, best to avoid this possibility by not introducing the conflict at all :)
I am trying to implement a really basic NavigationView in SwiftUI. When I try the sample code that I have seen on other websites it generates an error message in Xcode. I am not sure why or how to fix this.
I have tried to clean the project, quit Xcode-Beta and restart it but that did not work.
struct ContentView : View {
var body: some View {
NavigationView {
Text("This is a great app")
}
}
}
I thought the code above should work but the error I get says:
"Argument passed to call that takes no arguments."
Any ideas or suggestions?
VStack can only take 10 argument.
If more, there will be error, so you should make it nested.
from
VStack{
}
to
VStack{
VStack{
}
VStack{
}
}
I had this same error message too and figured out what I did wrong and then kind of felt like an idiot. Ha ha.
Take a look:
It took me a while to figure out that my struct was the same name as a previously defined struct VStack. Whoops!
So I'm wondering if you had a file in your project that did this too.
check-in your app is there any Swifui class with the name NavigationView.
also when you jump to the definition from NavigationView it should refer to:
#available(iOS 13.0, macOS 10.15, tvOS 13.0, watchOS 7.0, *)
public struct NavigationView<Content> : View where Content : View {
public init(#ViewBuilder content: () -> Content)
/// The type of view representing the body of this view.
///
/// When you create a custom view, Swift infers this type from your
/// implementation of the required `body` property.
public typealias Body = Never
}
Testing Xcode 11.2.1 and it's still buggy. I noticed when I keep adding primitive views to my ContentView, I start getting errors like
"Argument passed to call that takes no arguments",
"Type of expression is ambiguous without more context" etc. on primitive views which worked before.
When I replaced, for example,
ScrollView {
VStack {
Text
Button
Image
Text
Button
Image
Text
Button
Image
...
}
}
with
ScrollView {
VStack {
VStack {
Text
Button
Image
}
VStack {
Text
Button
Image
}
VStack {
Text
Button
Image
}
...
}
my code started to compile and run again.
I found this problem when I accidentally try to redefine Text struct. Check if you naming your custom class the same as those in SwiftUI.
#Matteo Pacini helped me find the answer. When I started a new Xcode Project just to test the code above everything worked. I had a lot of files and was testing a lot of different code while experimenting with SwiftUI in my other project and for some reason XCode was always generating this error.
When I tried everything in a new project it worked. Something to be aware of while testing. Hope this helps others avoid similar problems.
Embed the 'Text("This is a great app")' in a VStack
struct ContentView : View {
var body: some View {
NavigationView {
Stack {
Text("This is a great app")
}
}
}
}