一旦我的应用程序被双击/强制退出，如何在 UITextView 中保存输入？我可以在textViewDidChange调用中编写一些可以自动保存输入的代码吗？注意：最后一个代码部分是 UITextView 所在的位置。
struct ContentView: View {
@EnvironmentObject var obj : observed
@ObservedObject var date1 = SaveSettings()
@ObservedObject var date2 = SaveSettings()
@ObservedObject var date3 = SaveSettings()
@ObservedObject var date4 = SaveSettings()
@ObservedObject var date5 = SaveSettings()
@ObservedObject var date6 = SaveSettings()
@ObservedObject var date7 = SaveSettings()
@ObservedObject var date8 = SaveSettings()
@ObservedObject var date9 = SaveSettings()
@ObservedObject var date10 = SaveSettings()
@ObservedObject var reason1 = SaveSettings()
@ObservedObject var reason2 = SaveSettings()
@ObservedObject private var keyboard = KeyboardResponder()
var body: some View {
TabView {
ScrollView(.vertical) {
VStack {
HStack {
Text("My Journey").font(.largeTitle).foregroundColor(.blue).bold() }
// Entry 1
HStack {
Text("Date: ").foregroundColor(.blue).fontWeight(.bold).multilineTextAlignment(.trailing)
TextField("Month/Day/Year", text: $date1.date)
.padding(.bottom, 8.0)
.frame(width: 170.0)
.textFieldStyle(RoundedBorderTextFieldStyle())
Spacer()
}
.padding(.leading)
VStack {
HStack {
DropDown()
}
HStack {
Text("What's going on?")
.font(.headline)
.fontWeight(.bold)
.foregroundColor(Color.purple)
.padding(.all, 8.0)
Spacer()
Button("Done") {
self.hideKeyboard()
}
Spacer()
}
HStack {
MultiTextField().frame(height : self.obj.size < 150 ? self.obj.size : 150).padding(10).background(Color.gray).cornerRadius(10)
}.padding(EdgeInsets(top: 0, leading: 25, bottom: 33, trailing: 25))
// Entry 2
HStack {
Text("Date: ").foregroundColor(.blue).fontWeight(.bold).multilineTextAlignment(.trailing).padding([.top, .leading])
TextField("Month/Day/Year", text: $date2.date2)
.padding(.vertical, 8.0)
.frame(width: 170.0)
.textFieldStyle(RoundedBorderTextFieldStyle())
Spacer()
}
VStack {
HStack {
DropDown2()
}
HStack {
Text("What's going on?")
.font(.headline)
.fontWeight(.bold)
.foregroundColor(Color.purple)
.padding(.all, 8.0)
Spacer()
Button("Done") {
self.hideKeyboard()
}
Spacer()
}
HStack {
MultiTextField().frame(height : self.obj.size < 150 ? self.obj.size : 150).padding(10).background(Color.gray).cornerRadius(10)
}
.padding(EdgeInsets(top: 0, leading: 25, bottom: 33, trailing: 25))
// Entry 3
HStack {
Text("Date:").foregroundColor(.blue)
.bold().padding(.leading)
TextField("Month/Day/Year", text: $date3.date3)
.frame(width: 170.0)
.textFieldStyle(RoundedBorderTextFieldStyle())
Spacer()
}
HStack {
DropDown3()
}
HStack {
Text("What's going on?")
.font(.headline)
.fontWeight(.bold)
.foregroundColor(Color.purple)
.padding(.all, 8.0)
Spacer()
Button("Done") {
self.hideKeyboard()
}
Spacer()
}
HStack {
MultiTextField().frame(height : self.obj.size < 150 ? self.obj.size : 150).padding(10).background(Color.gray).cornerRadius(10)
}
.padding(EdgeInsets(top: 0, leading: 25, bottom: 33, trailing: 25))
Group {
// Entry 4
HStack {
Text("Date: ").foregroundColor(.blue).fontWeight(.bold).multilineTextAlignment(.trailing)
TextField("Month/Day/Year", text: $date4.date4)
.padding(.bottom, 8.0)
.frame(width: 170.0)
.textFieldStyle(RoundedBorderTextFieldStyle())
Spacer()
}
.padding(.leading)
VStack {
HStack {
DropDown4()
}
}
HStack {
Text("What's going on?")
.font(.headline)
.fontWeight(.bold)
.foregroundColor(Color.purple)
.padding(.all, 8.0)
Spacer()
Button("Done") {
self.hideKeyboard()
}
Spacer()
}
HStack {
MultiTextField().frame(height : self.obj.size < 150 ? self.obj.size : 150).padding(10).background(Color.gray).cornerRadius(10)
}
.padding(EdgeInsets(top: 0, leading: 25, bottom: 33, trailing: 25))
}
}
}
}
}.padding(.bottom, keyboard.currentHeight)
}
}
}
struct ContentView_Previews: PreviewProvider {
static var previews: some View {
ContentView()
}
}
struct DropDown: View {
@State var expand = false
@ObservedObject var feeling = SaveSettings()
var body: some View {
VStack() {
VStack(spacing: 30) {
HStack() {
Text("I am feeling: ").bold().foregroundColor(.white)
Text(feeling.feeling).bold().foregroundColor(.white)
Image(systemName: expand ? "chevron.up" : "chevron.down").resizable().frame(width: 13, height:6)
}.onTapGesture {
self.expand.toggle()
}
if expand {
Button(action: {
self.feeling.feeling = "Happy"
self.expand.toggle()
}) {
Text("Happy")
}.foregroundColor(.white)
Button(action: {
self.feeling.feeling = "Frustrated"
self.expand.toggle()
}) {
Text("Frustrated")
}.foregroundColor(.white)
Button(action: {
self.feeling.feeling = "Disappointed"
self.expand.toggle()
}) {
Text("Disappointed")
}.foregroundColor(.white)
Button(action: {
self.feeling.feeling = "Excited"
self.expand.toggle()
}) {
Text("Excited")
}.foregroundColor(.white)
Button(action: {
self.feeling.feeling = "Amused"
self.expand.toggle()
}) {
Text("Amused")
}.foregroundColor(.white)
Button(action: {
self.feeling.feeling = "Anxious"
self.expand.toggle()
}) {
Text("Anxious")
}.foregroundColor(.white)
Button(action: {
self.feeling.feeling = "Confused"
self.expand.toggle()
}) {
Text("Confused")
}.foregroundColor(.white)
Button(action: {
self.feeling.feeling = "Admiration"
self.expand.toggle()
}) {
Text("Admiration")
}.foregroundColor(.white)
Button(action: {
self.feeling.feeling = "Embarassed"
self.expand.toggle()
}) {
Text("Embarrased")
}.foregroundColor(.white)
Group {
Button(action: {
self.feeling.feeling = "Nostalgic"
self.expand.toggle()
}) {
Text("Nostalgic")
}.foregroundColor(.white)
Button(action: {
self.feeling.feeling = "Surprised"
self.expand.toggle()
}) {
Text("Surprised")
}.foregroundColor(.white)
}
}
}
}.padding()
.background(LinearGradient(gradient: .init(colors: [.blue, .purple]), startPoint: .top, endPoint: .bottom)).cornerRadius(15).shadow(color: .gray, radius: 5).animation(.interactiveSpring())
}
}
struct DropDown2: View {
@State var expand = false
@ObservedObject var feeling2 = SaveSettings()
var body: some View {
VStack() {
VStack(spacing: 30) {
HStack() {
Text("I am feeling: ").bold().foregroundColor(.white)
Text(feeling2.feeling2).bold().foregroundColor(.white)
Image(systemName: expand ? "chevron.up" : "chevron.down").resizable().frame(width: 13, height:6)
}.onTapGesture {
self.expand.toggle()
}
if expand {
Button(action: {
self.feeling2.feeling2 = "Happy"
self.expand.toggle()
}) {
Text("Happy")
}.foregroundColor(.white)
Button(action: {
self.feeling2.feeling2 = "Frustrated"
self.expand.toggle()
}) {
Text("Frustrated")
}.foregroundColor(.white)
Button(action: {
self.feeling2.feeling2 = "Disappointed"
self.expand.toggle()
}) {
Text("Disappointed")
}.foregroundColor(.white)
Button(action: {
self.feeling2.feeling2 = "Excited"
self.expand.toggle()
}) {
Text("Excited")
}.foregroundColor(.white)
Button(action: {
self.feeling2.feeling2 = "Amused"
self.expand.toggle()
}) {
Text("Amused")
}.foregroundColor(.white)
Button(action: {
self.feeling2.feeling2 = "Anxious"
self.expand.toggle()
}) {
Text("Anxious")
}.foregroundColor(.white)
Button(action: {
self.feeling2.feeling2 = "Confused"
self.expand.toggle()
}) {
Text("Confused")
}.foregroundColor(.white)
Button(action: {
self.feeling2.feeling2 = "Admiration"
self.expand.toggle()
}) {
Text("Admiration")
}.foregroundColor(.white)
Button(action: {
self.feeling2.feeling2 = "Embarassed"
self.expand.toggle()
}) {
Text("Embarrased")
}.foregroundColor(.white)
Group {
Button(action: {
self.feeling2.feeling2 = "Nostalgic"
self.expand.toggle()
}) {
Text("Nostalgic")
}.foregroundColor(.white)
Button(action: {
self.feeling2.feeling2 = "Surprised"
self.expand.toggle()
}) {
Text("Surprised")
}.foregroundColor(.white)
}
}
}
}.padding()
.background(LinearGradient(gradient: .init(colors: [.blue, .purple]), startPoint: .top, endPoint: .bottom)).cornerRadius(15).shadow(color: .gray, radius: 5).animation(.interactiveSpring())
}
}
struct DropDown3: View {
@State var expand = false
@ObservedObject var feeling3 = SaveSettings()
var body: some View {
VStack() {
VStack(spacing: 30) {
HStack() {
Text("I am feeling: ").bold().foregroundColor(.white)
Text(feeling3.feeling3).bold().foregroundColor(.white)
Image(systemName: expand ? "chevron.up" : "chevron.down").resizable().frame(width: 13, height:6)
}.onTapGesture {
self.expand.toggle()
}
if expand {
Button(action: {
self.feeling3.feeling3 = "Happy"
self.expand.toggle()
}) {
Text("Happy")
}.foregroundColor(.white)
Button(action: {
self.feeling3.feeling3 = "Frustrated"
self.expand.toggle()
}) {
Text("Frustrated")
}.foregroundColor(.white)
Button(action: {
self.feeling3.feeling3 = "Disappointed"
self.expand.toggle()
}) {
Text("Disappointed")
}.foregroundColor(.white)
Button(action: {
self.feeling3.feeling3 = "Excited"
self.expand.toggle()
}) {
Text("Excited")
}.foregroundColor(.white)
Button(action: {
self.feeling3.feeling3 = "Amused"
self.expand.toggle()
}) {
Text("Amused")
}.foregroundColor(.white)
Button(action: {
self.feeling3.feeling3 = "Anxious"
self.expand.toggle()
}) {
Text("Anxious")
}.foregroundColor(.white)
Button(action: {
self.feeling3.feeling3 = "Confused"
self.expand.toggle()
}) {
Text("Confused")
}.foregroundColor(.white)
Button(action: {
self.feeling3.feeling = "Admiration"
self.expand.toggle()
}) {
Text("Admiration")
}.foregroundColor(.white)
Button(action: {
self.feeling3.feeling3 = "Embarassed"
self.expand.toggle()
}) {
Text("Embarrased")
}.foregroundColor(.white)
Group {
Button(action: {
self.feeling3.feeling3 = "Nostalgic"
self.expand.toggle()
}) {
Text("Nostalgic")
}.foregroundColor(.white)
Button(action: {
self.feeling3.feeling3 = "Surprised"
self.expand.toggle()
}) {
Text("Surprised")
}.foregroundColor(.white)
}
}
}
}.padding()
.background(LinearGradient(gradient: .init(colors: [.blue, .purple]), startPoint: .top, endPoint: .bottom)).cornerRadius(15).shadow(color: .gray, radius: 5).animation(.interactiveSpring())
}
}
struct DropDown4: View {
@State var expand = false
@ObservedObject var feeling4 = SaveSettings()
var body: some View {
VStack() {
VStack(spacing: 30) {
HStack() {
Text("I am feeling: ").bold().foregroundColor(.white)
Text(feeling4.feeling4).bold().foregroundColor(.white)
Image(systemName: expand ? "chevron.up" : "chevron.down").resizable().frame(width: 13, height:6)
}.onTapGesture {
self.expand.toggle()
}
if expand {
Button(action: {
self.feeling4.feeling4 = "Happy"
self.expand.toggle()
}) {
Text("Happy")
}.foregroundColor(.white)
Button(action: {
self.feeling4.feeling4 = "Frustrated"
self.expand.toggle()
}) {
Text("Frustrated")
}.foregroundColor(.white)
Button(action: {
self.feeling4.feeling4 = "Disappointed"
self.expand.toggle()
}) {
Text("Disappointed")
}.foregroundColor(.white)
Button(action: {
self.feeling4.feeling4 = "Excited"
self.expand.toggle()
}) {
Text("Excited")
}.foregroundColor(.white)
Button(action: {
self.feeling4.feeling4 = "Amused"
self.expand.toggle()
}) {
Text("Amused")
}.foregroundColor(.white)
Button(action: {
self.feeling4.feeling4 = "Anxious"
self.expand.toggle()
}) {
Text("Anxious")
}.foregroundColor(.white)
Button(action: {
self.feeling4.feeling4 = "Confused"
self.expand.toggle()
}) {
Text("Confused")
}.foregroundColor(.white)
Button(action: {
self.feeling4.feeling4 = "Admiration"
self.expand.toggle()
}) {
Text("Admiration")
}.foregroundColor(.white)
Button(action: {
self.feeling4.feeling4 = "Embarassed"
self.expand.toggle()
}) {
Text("Embarrased")
}.foregroundColor(.white)
Group {
Button(action: {
self.feeling4.feeling4 = "Nostalgic"
self.expand.toggle()
}) {
Text("Nostalgic")
}.foregroundColor(.white)
Button(action: {
self.feeling4.feeling4 = "Surprised"
self.expand.toggle()
}) {
Text("Surprised")
}.foregroundColor(.white)
}
}
}
}.padding()
.background(LinearGradient(gradient: .init(colors: [.blue, .purple]), startPoint: .top, endPoint: .bottom)).cornerRadius(15).shadow(color: .gray, radius: 5).animation(.interactiveSpring())
}
}
struct MultiTextField: UIViewRepresentable {
func makeCoordinator() -> Coordinator {
return MultiTextField.Coordinator(parent1: self)
}
@EnvironmentObject var obj : observed
func makeUIView(context: UIViewRepresentableContext<MultiTextField>) -> UITextView {
let view = UITextView()
view.font = .systemFont(ofSize: 16)
view.text = " "
view.textColor = UIColor.black.withAlphaComponent(0.350)
view.backgroundColor = .clear
view.delegate = context.coordinator
self.obj.size = view.contentSize.height
view.isEditable = true
view.isUserInteractionEnabled = true
view.isScrollEnabled = true
view.isSelectable = true
return view
}
func updateUIView(_ uiView: UITextView, context: UIViewRepresentableContext<MultiTextField>) {
}
class Coordinator: NSObject,UITextViewDelegate {
var parent : MultiTextField
init(parent1 : MultiTextField) {
parent = parent1
}
func textViewDidBeginEditing(_ textView: UITextView) {
textView.textColor = .black
}
func textViewDidChange(_ textView: UITextView) {
self.parent.obj.size = textView.contentSize.height
UserDefaults.standard.set(textView.text, forKey: "TextViewTextToRestore") //added
}
func textViewDidEndEditing(_ textView: UITextView) {
print("Editing is done")
}
}
}