You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
64 lines
1.4 KiB
64 lines
1.4 KiB
import SwiftUI
|
|
|
|
struct GrowingTextInputView: View {
|
|
init(text: Binding<String?>, placeholder: String) {
|
|
self._text = text
|
|
self.placeholder = placeholder
|
|
}
|
|
|
|
@Binding var text: String?
|
|
@State var focused: Bool = false
|
|
@State var contentHeight: CGFloat = 0
|
|
|
|
let placeholder: String?
|
|
let minHeight: CGFloat = 39
|
|
let maxHeight: CGFloat = 150
|
|
|
|
var countedHeight: CGFloat {
|
|
min(max(minHeight, contentHeight), maxHeight)
|
|
}
|
|
|
|
var body: some View {
|
|
ZStack(alignment: .topLeading) {
|
|
Color.white
|
|
ZStack(alignment: .topLeading) {
|
|
placeholderView
|
|
TextViewWrapper(text: $text, focused: $focused, contentHeight: $contentHeight)
|
|
}.padding(.horizontal, 4)
|
|
}.frame(height: countedHeight)
|
|
}
|
|
|
|
var placeholderView: some View {
|
|
ViewBuilder.buildIf(
|
|
showPlaceholder ?
|
|
placeholder.map {
|
|
Text($0)
|
|
.foregroundColor(.gray)
|
|
.font(.system(size: 16))
|
|
.padding(.vertical, 8)
|
|
.padding(.horizontal, 4)
|
|
} : nil
|
|
)
|
|
}
|
|
|
|
var showPlaceholder: Bool {
|
|
if let text=self.text{
|
|
return !focused&&text.isEmpty
|
|
}else{
|
|
return false
|
|
}
|
|
}
|
|
}
|
|
|
|
#if DEBUG
|
|
struct GrowingTextInputView_Previews: PreviewProvider {
|
|
@State static var text: String?
|
|
|
|
static var previews: some View {
|
|
GrowingTextInputView(
|
|
text: $text,
|
|
placeholder: "Placeholder"
|
|
)
|
|
}
|
|
}
|
|
#endif
|
|
|