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SwiftUI Color Picker Example with SheetyColors
// Created by Wendt, Christoph on 14.03.20.
// Copyright © 2020 Wendt, Christoph. All rights reserved.
import SwiftUI
import SheetyColors
struct ColorPickerOverlay: View {
@State private var pickerColor: UIColor = UIColor.white
@Binding var isShown: Bool
@Binding var selectedColor: UIColor
var currentColor: UIColor
let isTextColor: Bool
var body: some View {
GeometryReader { geometry in
VStack(alignment: .center, spacing: 8) {
/// Area above the picker. See Spacer extension at the bottom of the file.
Spacer()
.onTapGesture {
self.dismissButtonPressed()
}
/// Headline, color picker, and action buttons.
VStack(alignment: .center, spacing: 0) {
Text("Headline")
.font(Font.caption)
.foregroundColor(Color.gray)
ColorPicker(config: SheetyColorsConfig(alphaEnabled: self.isTextColor, hapticFeedbackEnabled: true, initialColor: self.currentColor, title: nil, message: nil, type: .rgb), color: self.$pickerColor)
.frame(height: self.pickerHeight)
Divider()
Button(action: {
self.selectButtonPressed()
}, label: {
HStack {
Spacer()
Text("Select Color")
.font(Font.system(size: 20.0))
Spacer()
}
})
.buttonStyle(ColorPickerButtonStyle())
}
.padding(.top)
.background(Color.white)
.cornerRadius(13)
Button(action: {
self.dismissButtonPressed()
}, label: {
HStack {
Spacer()
Text("Cancel")
.font(Font.system(size: 20.0).bold())
Spacer()
}
})
.buttonStyle(ColorPickerButtonStyle())
.cornerRadius(13)
}
.padding(8)
.frame(height: self.overlayHeight(for: geometry))
.offset(x: 0, y: self.isShown ? 0 : self.overlayHeight(for: geometry))
.background(self.isShown ? Color.black.opacity(0.2) : nil)
.animation(.default)
}
}
private func overlayHeight(for geometry: GeometryProxy) -> CGFloat {
return UIScreen.main.bounds.height - geometry.safeAreaInsets.top
}
private var pickerHeight: CGFloat {
return isTextColor ? 330.0 : 280.0
}
private func selectButtonPressed() {
selectedColor = pickerColor
isShown = false
}
private func dismissButtonPressed() {
isShown = false
}
}
struct ColorPickerButtonStyle: ButtonStyle {
func makeBody(configuration: Self.Configuration) -> some View {
configuration.label
.foregroundColor(.blue)
.padding()
.background(configuration.isPressed ? Color.buttonPressedBackground : Color.white)
.animation(.none)
}
}
extension Spacer {
/// https://stackoverflow.com/a/57416760/3393964
public func onTapGesture(count: Int = 1, perform action: @escaping () -> Void) -> some View {
ZStack {
Color.black.opacity(0.001).onTapGesture(count: count, perform: action)
self
}
}
}
@chrs1885

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@chrs1885 chrs1885 commented Mar 30, 2020

SwiftUI Color Picker

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