Questions tagged [viewbuilder]
54 questions
0
votes
1 answer
Set a @State var inside an If statement in Swift
I am trying to set the value of a @State var in an If statement that is inside of a struct of type :View, like so:
struct Name: View {
@State someVar: Int = 0
var body: some View {
VStack {
if this > that {
someVar =…
for coder in woods
- 35
- 3
0
votes
1 answer
PageView.Builder in Flutter The getter 'length' was called on null. Receiver: null Tried calling: length
when use response from API then show error
The getter 'length' was called on null.
Receiver: null
Tried calling: length
here is my API code
var url =
"https://domain.php";
var res;
var splashs;
void initState() {
super.initState();
…
Yasir Mehmood
- 296
- 2
- 11
0
votes
0 answers
ContentView file in SwiftUI too complex for the compiler?
Ever since SwiftUI 2 released, the compiler and debugger have just become awful. Whenever I add another view (that is a custom struct or even just a VStack containing a Text() element) to the ZStack in 'viewThatCanContainOtherViews()', the code…
nickcoding
- 305
- 8
- 35
0
votes
0 answers
SwiftUI @ViewBuilder issue in Xcode 12 fails to compile project in View extension
Hi I am facing an issue in project/build compilation in Xcode 12 Beta 1-6 (SwiftUI 2.0), In scenario, Having Custom modifier in View extension.
extension View {
public func alert(isPresented: Binding, @ViewBuilder _ alert: () ->…
Nasir
- 1,617
- 2
- 19
- 34
0
votes
1 answer
(SwiftUI) How can I access the match I have found from one array in another in ViewBuilder?
I have two arrays.
maschineItems: [MaschineItem]
maschines: [Maschine]
Both objects have the property "name"
In my View I want to check whether the name of a maschineItem exists in the array of the machines. I want to make a 'light Bubble' for all…
FamTastisch
- 1
- 1
0
votes
1 answer
SwiftUI: How do I return to same index with a Picker using SegmentedPickerStyle()
This is just me wrapping my head around ViewBuilders and the new SwiftUI paradigm.
I have a "menu" at the top of my screen along with a couple of buttons.
If I do a search (tap the magnifying glass), when I return the index always returns to 0 and…
Mozahler
- 4,958
- 6
- 36
- 56
-1
votes
1 answer
Custom Scrollview in SwiftUI
I have a piece of code that looks like this in my ContentView and I'd like to not repeat the ScrollView's modifiers unnecessarily.
if variable == false {
ScrollView {
// Code here
}
.navigationBarTitleDisplayMode(.inline)
…
Alexnnd
- 429
- 4
- 13
-1
votes
1 answer
can I set a variable to @ViewBuilder?
Can onebody help me with the following please:
I would like to be able to set a variable in a class conforming to "ObservableObject" to different Views in order to be able to pass that variable as "content" to custom view with @ViewBuilder
Here is…
matyasl
- 295
- 2
- 11
-1
votes
1 answer
SwiftUI: Waiting for variable to be true
Here's my code
struct Home: View {
@State var status = UserDefaults.standard.value(forKey: "status") as? Bool ?? false
var userEmail = Auth.auth().currentUser?.email
@State private var hasTimeElapsed = false
var body: some View {
if…
Canyon
- 45
- 6