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136 changes: 136 additions & 0 deletions
136
SSSwiftUIAnimations/SSSwiftUIAnimations/LoadingAnimation/ProgressBar/SwiftUIView.swift
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,136 @@ | ||
| // | ||
| // SwiftUIView.swift | ||
| // SSSwiftUIAnimations | ||
| // | ||
| // Created by Brijesh Barasiya on 28/02/24. | ||
| // | ||
|
|
||
| import SwiftUI | ||
|
|
||
| struct SwiftUIView: View { | ||
| @Binding private var percentage: Float | ||
| @State private var sticks: [Stick] | ||
| @State private var lastStickIndex: Int = 0 | ||
| private let circleRadius: CGFloat | ||
| private let stickWidth: CGFloat | ||
| private let filledColor: Color | ||
| private let unFilledColor: Color | ||
| private let duration: Double | ||
| private let progressColor: Color | ||
|
|
||
| init( | ||
| percentage: Binding<Float>, | ||
| size: Float, | ||
| stickWidth: Float, | ||
| progressColor: Color, | ||
| filledColor: Color, | ||
| unFilledColor: Color, | ||
| duration: Double | ||
| ) { | ||
| let screenBounds = UIScreen.main.bounds | ||
| let screenWidth = Float(screenBounds.width) | ||
| let screenHeight = Float(screenBounds.height) | ||
|
|
||
| // Adjust stick size, ensuring it doesn't exceed the screen size - 50 | ||
| let adjustedSize: Float = min(max(size, 50), min(screenWidth, screenHeight) - 50) | ||
|
|
||
| // Adjust stick width, ensuring a minimum value of 9% of size. | ||
| let adjustedStickWidth = min(max((adjustedSize / 100) * 5, stickWidth), (adjustedSize / 100) * 20) | ||
|
|
||
| let circumference = 2 * .pi * adjustedSize | ||
| let spacing = circumference / adjustedStickWidth | ||
| let totalStickCount: Int = Int((spacing * 25) / 100) | ||
| self.sticks = Array(repeating: Stick(xAxis: 0, color: unFilledColor), count: totalStickCount) | ||
| self.circleRadius = CGFloat(adjustedSize/2) | ||
| self.stickWidth = CGFloat(adjustedStickWidth) | ||
| self.progressColor = progressColor | ||
| self.filledColor = filledColor | ||
| self.unFilledColor = unFilledColor | ||
| self.duration = duration / Double(totalStickCount) | ||
| self._percentage = percentage | ||
| } | ||
|
|
||
| var body: some View { | ||
| Circle() | ||
| .frame(width: circleRadius * 2) | ||
| .foregroundColor(Color.clear) | ||
| .overlay { | ||
| ForEach(0..<sticks.count, id: \.self) { index in | ||
| Rectangle() | ||
| .frame(width: stickWidth, height: (stickWidth * 3)) | ||
| .foregroundColor(sticks[index].color) | ||
| .offset(y: (circleRadius - stickWidth)) | ||
| .rotationEffect( | ||
| .degrees(Double((CGFloat(index) + sticks[index].xAxis) * 360) / Double(sticks.count)) | ||
| ) | ||
| } | ||
| } | ||
| .onAppear { | ||
| animateStickView(index: 0, isReversing: false) | ||
| } | ||
| } | ||
|
|
||
| private func animateStickView(index: Int, isReversing: Bool) { | ||
| if #available(iOS 17.0, *) { | ||
| withAnimation(Animation.linear(duration: duration)) { | ||
| updateStickViewProperties(index: index, isReversing: isReversing) | ||
| } completion: { | ||
| resertStickViewAnimation(index: index, isReversing: isReversing) | ||
| } | ||
| } else { | ||
| withAnimation(Animation.linear(duration: duration)) { | ||
| updateStickViewProperties(index: index, isReversing: isReversing) | ||
| } | ||
| DispatchQueue.main.asyncAfter(deadline: .now() + duration) { | ||
| resertStickViewAnimation(index: index, isReversing: isReversing) | ||
| } | ||
| } | ||
| } | ||
|
|
||
| private func updateStickViewProperties(index: Int, isReversing: Bool) { | ||
| sticks[index].xAxis = isReversing ? -0.6 : 0.6 | ||
| sticks[index].color = getStickColor(forIndex: index, isReversing: isReversing) | ||
| let validatedPercentage = min(max(0, percentage), 100) | ||
| let sticksAccordingToPercentage = Double(sticks.count) * Double(validatedPercentage / 100) | ||
| let numberOfSticksToChange = max(Int(sticksAccordingToPercentage), 0) | ||
| for stickIndex in 0..<min(numberOfSticksToChange, index) { | ||
| sticks[stickIndex].color = progressColor | ||
| } | ||
| let finalIndex = index >= numberOfSticksToChange ? numberOfSticksToChange : lastStickIndex | ||
| lastStickIndex = finalIndex | ||
| } | ||
|
|
||
| private func resertStickViewAnimation(index: Int, isReversing: Bool) { | ||
| withAnimation(Animation.linear(duration: duration)) { | ||
| sticks[index].xAxis = 0 | ||
| } | ||
| let nextIndex = isReversing ? index - 1 : index + 1 | ||
| if (index == (lastStickIndex) && isReversing) || (index == sticks.indices.last && !isReversing) { | ||
| animateStickView(index: isReversing ? nextIndex + 1 : nextIndex - 1, isReversing: !isReversing) | ||
| } else { | ||
| animateStickView(index: nextIndex ,isReversing: isReversing) | ||
| } | ||
| } | ||
|
|
||
| private func getStickColor(forIndex index: Int, isReversing: Bool) -> Color { | ||
| return if (index == lastStickIndex) { | ||
| filledColor | ||
| } else if (index == sticks.indices.last) { | ||
| unFilledColor | ||
| } else { | ||
| (isReversing ? unFilledColor : filledColor) | ||
| } | ||
| } | ||
| } | ||
|
|
||
| #Preview { | ||
| SwiftUIView( | ||
| percentage: .constant(76), | ||
| size: 100, | ||
| stickWidth: 3, | ||
| progressColor: .green, | ||
| filledColor: .blue, | ||
| unFilledColor: .gray, | ||
| duration: 5 | ||
| ) | ||
| } |