Bir kullanıcı bir metin alanına karakter yazarken, yeni yazılan her karakterde bazı animasyonlar görüntülemek istiyorum (Cash Uygulamasının sayıları nasıl canlandırdığı gibi, ancak alfabetik karakterler için de uygulamak istiyorum).
Bunu Swiftui'de yapmak mümkün mü? Sezgilerim, a'ya daha nüanslı erişim için Uıkıt'e köprü kurmam gerekebileceğidir. textfieldama bunu nasıl uygulayacağımdan emin değilim.
Sadece bir "Sahte" oluşturabilirsiniz. TextField bu gerçek olanın üstünde görünüyor. Sonra karakterleri göster ForEach.
Bu ile yapılır FocusState iOS 15'te
@available(iOS 15.0, *)
struct AnimatedInputView: View {
@FocusState private var isFocused: Int?
@State var text: String = ""
//If all the fonts match the cursor is better aligned
@State var font: Font = .system(size: 48, weight: .bold, design: .default)
@State var color: Color = .gray
var body: some View {
HStack(alignment: .center, spacing: 0){
//To maintain size in between the 2 views
Text(text)
.font(font)
.opacity(0)
.overlay(
//This textField will be invisible
TextField("", text: $text)
.font(font)
.foregroundColor(.clear)
.focused($isFocused, equals: 1)
)
.background(
ZStack{
HStack(alignment: .center, spacing: 0, content: {
//You need an array of unique/identifiable characters
let uniqueArray = text.uniqueCharacters()
ForEach(uniqueArray, id: \.id, content: { char in
CharView(char: char.char, isLast: char == uniqueArray.last, font: font)
})
})
}.opacity(1)
.minimumScaleFactor(0.1)
)
.onAppear(perform: {
//Bring focus to the hidden TextField
DispatchQueue.main.asyncAfter(deadline: .now() + 0.5, execute: {
isFocused = 1
})
})
}
.padding()
.border(color)
.font(.title)
//Bring focus to the hidden textfield
.onTapGesture {
isFocused = 1
}
}
}
struct CharView: View{
var char: Character
var isLast: Bool
var font: Font
@State var scale: CGFloat = 0.75
var body: some View{
Text(char.description)
.font(font)
.minimumScaleFactor(0.1)
.scaleEffect(scale)
.onAppear(perform: {
//Animate only if last character
if isLast{
withAnimation(.linear(duration: 0.5)){
scale = 1
}
}else{
scale = 1
}
})
}
}
@available(iOS 15.0, *)
struct AnimatedInputView_Previews: PreviewProvider {
static var previews: some View {
AnimatedInputView()
}
}
//Convert String to Unique characers
extension String{
func uniqueCharacters() -> [UniqueCharacter]{
let array: [Character] = Array(self)
return array.uniqueCharacters()
}
func numberOnly() -> String {
self.trimmingCharacters(in: CharacterSet(charactersIn: "-0123456789.").inverted)
}
}
extension Array where Element == Character {
func uniqueCharacters() -> [UniqueCharacter]{
var array: [UniqueCharacter] = []
for char in self{
array.append(UniqueCharacter(char: char))
}
return array
}
}
//String/Characters can be repeating so yu have to make them a unique value
struct UniqueCharacter: Identifiable, Equatable{
var char: Character
var id: UUID = UUID()
}
İşte bunun örnek bir versiyonu. sadece hesap makinesi örneği gibi sayıları alır
import SwiftUI
@available(iOS 15.0, *)
struct AnimatedInputView: View {
@FocusState private var isFocused: Int?
@State var text: String = ""
//If all the fonts match the cursor is better aligned
@State var font: Font = .system(size: 48, weight: .bold, design: .default)
@State var color: Color = .gray
var body: some View {
HStack(alignment: .center, spacing: 0){
Text("$").font(font)
//To maintain size in between the 2 views
Text(text)
.font(font)
.opacity(0)
.overlay(
//This textField will be invisible
TextField("", text: $text)
.font(font)
.foregroundColor(.clear)
.focused($isFocused, equals: 1)
.onChange(of: text, perform: { value in
if Double(text) == nil{
//Leaves the negative and decimal period
text = text.numberOnly()
}
//This condition can be improved.
//Checks for 2 occurences of the decimal period
//Possible solution
while text.components(separatedBy: ".").count > 2{
color = .red
text.removeLast()
}
//This condition can be improved.
//Checks for 2 occurences of the negative
//Possible solution
while text.components(separatedBy: "-").count > 2{
color = .red
text.removeLast()
}
color = .gray
})
)
.background(
ZStack{
HStack(alignment: .center, spacing: 0, content: {
//You need an array of unique/identifiable characters
let uniqueArray = text.uniqueCharacters()
ForEach(uniqueArray, id: \.id, content: { char in
CharView(char: char.char, isLast: char == uniqueArray.last, font: font)
})
})
}.opacity(1)
.minimumScaleFactor(0.1)
)
.onAppear(perform: {
//Bring focus to the hidden TextField
DispatchQueue.main.asyncAfter(deadline: .now() + 0.5, execute: {
isFocused = 1
})
})
}
.padding()
.border(color)
.font(.title)
//Bring focus to the hidden textfield
.onTapGesture {
isFocused = 1
}
}
}