Edit Text Editor SwiftUI - swiftui

I am trying to edit the text of a binding value from another view. But text editor does not allow me to do so.
First I need to see the previous value of selectedNote.title in TextEditor and then I should be able to edit the title.
struct EditNotePageView: View {
#Binding var selectedNote: CDNoteModel!
#State var text = ""
var body: some View {
TextEditor(selectedNote.title!, text: $text)
}
}
I also tried like this. I can see my selectedNote.title in the simulator but when I tap on it it does nothing.
struct EditNotePageView: View {
#Binding var selectedNote: CDNoteModel!
#State var text = ""
var body: some View {
Text(selectedNote.title!)
.onTapGesture {
text = selectedNote.title!
TextEditor(text: $text)
}
}
}


ZStack Text and textEditor solved the problem with a little pinch of .onAppear
struct EditNotePageView: View {
#Binding var selectedNote: CDNoteModel!
#State var text = ""
var body: some View {
ZStack(alignment: .leading){
Text(selectedNote.title!)
.onAppear {
text = selectedNote.title!
}
TextEditor(text: $text)
}
}
}


You can use onChange property
struct EditNotePageView: View {
#Binding var selectedNote: CDNoteModel!
#State var text = ""
var body: some View {
TextEditor("", text: $text)
.onChange(of: text, perform: { value in
selectedNote.title = value
}
}
}


you could try this:
struct EditNotePageView: View {
#Binding var selectedNote: CDNoteModel
var body: some View {
TextEditor(text: $selectedNote.title)
}
}

Related

TextField #State property value = ""

I'm studying SwiftUI and I'm having a hard time dealing with TextField.
When I do onCommit, I tried to put "" in the #State Property value, but there was no response.
What I'm trying to do is click the'retrun' key in TextField and I want to show you the gap where the text created disappeared.
struct TodoTextFieldView: View {
#EnvironmentObject var listViewModel: ListViewModel
#State var textFieldText = ""
var title: String = "here typing line"
var body: some View {
VStack{
HStack(spacing: 5){
Text("🔥")
.font(.title)
TextField("\(title)",
text: $textFieldText,
onCommit:{ addItem()
//
})
.disableAutocorrection(true)
.underline()
.font(.headline)
}.padding(.leading, 40)
}.padding(16)
}
func addItem() {
listViewModel.addItem(title: textFieldText)
textFieldText = "" // This is where I want to do it.
print(textFieldText)
}
This is a parent view.
struct ContentView: View {
#EnvironmentObject var listViewModel: ListViewModel
var body: some View {
VStack {
TodayView()
Spacer()
TodoTextFieldView()
Spacer()
/// List view
List{
ForEach(listViewModel.items) { item in
ListView(item: item)
.onTapGesture {
withAnimation(.linear){
listViewModel.updateItem(item: item)
}
}
}
.onDelete(perform: listViewModel.deleteItem) // Delete
.onMove(perform: listViewModel.moveItem) // Edit
}.listStyle(PlainListStyle())
}.navigationBarItems(trailing: EditButton()) // Edit Button
.padding()
}
}
#State var textFieldText = ""
The value was directly added to the state property. But there is no reaction.
textFieldText = ""

Emptying the binding property of TextField inside the Task block works for me.
func addItem() {
listViewModel.addItem(title: textFieldText)
Task {
textFieldText = ""
}
}

sheet does not dismiss on swiftUI

#Environment(\.presentationMode) var presentationMode
#Environment(\.dismiss) var dismiss
I know just toggle State variable of 'fullScreenCover' or 'sheet' but I found another approach and both above doesn't work.
Here's simple code.
struct ContentView: View {
#Environment(\.presentationMode) var presentationMode
#Environment(\.dismiss) var dismiss
#State var sheetState = false
#State private var value = ""
var body: some View {
VStack {
Text(value)
Button("Present Sheet") {
sheetState.toggle()
}
}
.sheet(isPresented: $sheetState) {
Button("set1") {
value = "1"
//presentationMode.wrappedValue.dismiss()
dismiss()
}
}
}
}
When I press the button of sheet named 'set1' it change the 'value' set '1' and Text of VStack set "1" correctly but sheet doesn't dismiss.
It absolutely same both approach.
Am I using these things wrong?
here's my result.
https://imgur.com/a/5cjExyv

Technically you are trying to dismiss ContentView which makes no sense.
You have to create a separate View struct for the sheet.
struct ContentView: View {
#State private var sheetState = false
#State private var value = ""
var body: some View {
VStack {
Text(value)
Button("Present Sheet") {
sheetState.toggle()
}
}
.sheet(isPresented: $sheetState) {
SheetView(value: $value)
}
}
}
struct SheetView : View {
#Environment(\.dismiss) var dismiss
#Binding var value : String
var body: some View {
Button("set1") {
value = "1"
dismiss()
}
}
}

Presenting a Sheet modally, #State value is not changing

I have tried much time on it but I couldn't figure out why it is not working.
The problem is when I tap the button, the new value inside the sheet is not updated. It always show the same value which is set up in start.
#State var value:String = "empty"
#State var explorePageIsEnabled:Bool = false
VStack{
Button("tap me"){
value = "the new one"
exploreStatusIsEnabled.toggle()
}
.sheet(isPresented: $exploreStatusIsEnabled, content: {
Text(value)
})
}
Deployment target is IOS 14+

Create a separate struct view for text and use Binding.
struct SheetView: View {
#Binding var value: String
var body: some View {
Text(value)
}
}
struct ContentView: View {
#State private var value: String = "empty"
#State private var explorePageIsEnabled: Bool = false
var body: some View {
VStack{
Button("tap me"){
value = "the new one"
explorePageIsEnabled.toggle()
}
.sheet(isPresented: $explorePageIsEnabled, content: {
SheetView(value: $value)
})
}
}
}

TextField not showing placeholder text when cleared programmatically. is there a way to remove this behavior?

I have the following code. When I clear the TextField binding property on the view model, the placeholder text isn't shown again until the TextField becomes first responder again.
struct SomeView: View {
#ObservedObject var viewModel = ViewModel()
var body: some View {
HStack {
TextField("Enter something here..", text: $viewModel.text)
.textFieldStyle(RoundedBorderTextFieldStyle())
.disableAutocorrection(true)
Spacer()
Button("Reset") { self.viewModel.reset() }
}
.padding()
}
}
class ViewModel: ObservableObject {
#Published var text = ""
func reset() {
text = ""
}
}

SwiftUI action at deselection of a Lists row

I have a SwiftUI List, that changes an attribute on a row, e.g. color on a tap.
Now I want to start an action e.g. reset the color, if another row is tapped.
I´m looking for an event, that the row receives ,if it is deselected.
Here my example code:
struct ContentView: View {
#State var data : [String] = ["first","second","third","4th","5th"]
var body: some View {
List {
ForEach (data, id: \.self) {
item in
ColoredRow(text: item)
}
}
}
}
struct ColoredRow: View {
var text: String = ""
#State var col : Color = Color.white
var body: some View{
Text("\(text)")
.background(col)
.onTapGesture {
self.col = Color.red
}
// .onDeselect {
// print("disappeare \(self.text)")
// self.col = Color.white
// }
}
}

Let' recall that SwiftUI is reactive (ie. state-driven, not event-driven), so if we wan't to change something in UI we need to find a way to change it via state (either UI or model, but state).
So, below is slightly modified your code to show possible approach. Tested with Xcode 11.2 / iOS 13.2.
struct ContentView: View {
#State var data : [String] = ["first","second","third","4th","5th"]
#State private var selectedItem: String? = nil
var body: some View {
List {
ForEach (data, id: \.self) {
item in
ColoredRow(text: item, selection: self.$selectedItem)
}
}
}
}
struct ColoredRow: View {
var text: String = ""
#Binding var selection: String?
#State var col : Color = Color.white
var body: some View{
Text("\(text)")
.background(selection == text ? Color.red : Color.white)
.onTapGesture {
self.selection = (self.selection == self.text ? nil : self.text)
}
}
}