Newer
■
■
■
■
■
■
■
■
■
■
Older
61 lines
|
1.698kb
| 1 |
// |
|
| 2 |
// RSSIView.swift |
|
| 3 |
// USB Meter |
|
| 4 |
// |
|
| 5 |
// Created by Bogdan Timofte on 14/03/2020. |
|
| 6 |
// Copyright © 2020 Bogdan Timofte. All rights reserved. |
|
| 7 |
// |
|
| 8 | ||
| 9 |
import SwiftUI |
|
| 10 | ||
| 11 | ||
| 12 |
struct RSSIView: View {
|
|
| 13 | ||
| 14 |
var RSSI: Int |
|
| 15 |
private let barThresholds = [-100, -85, -70, -55] |
|
| 16 |
private let barHeights: [CGFloat] = [5, 8, 11, 14] |
|
| 17 | ||
| 18 |
var body: some View {
|
|
| 19 |
HStack(alignment: .bottom, spacing: 2) {
|
|
| 20 |
ForEach(Array(barHeights.enumerated()), id: \.offset) { index, height in
|
|
| 21 |
RoundedRectangle(cornerRadius: 1.2, style: .continuous) |
|
| 22 |
.stroke(barStrokeColor(for: index), lineWidth: 1) |
|
| 23 |
.background( |
|
| 24 |
RoundedRectangle(cornerRadius: 1.2, style: .continuous) |
|
| 25 |
.fill(index < activeBarCount ? clr() : Color.clear) |
|
| 26 |
) |
|
| 27 |
.frame(width: 3, height: height) |
|
| 28 |
} |
|
| 29 |
} |
|
| 30 |
.frame(width: 18, height: 16, alignment: .bottom) |
|
| 31 |
} |
|
| 32 | ||
| 33 |
private var activeBarCount: Int {
|
|
| 34 |
barThresholds.reduce(0) { count, threshold in
|
|
| 35 |
count + (RSSI >= threshold ? 1 : 0) |
|
| 36 |
} |
|
| 37 |
} |
|
| 38 | ||
| 39 |
private func barStrokeColor(for index: Int) -> Color {
|
|
| 40 |
index < activeBarCount ? clr().opacity(0.65) : Color.secondary.opacity(0.35) |
|
| 41 |
} |
|
| 42 | ||
| 43 |
private func clr() -> Color {
|
|
| 44 |
switch RSSI {
|
|
| 45 |
case let x where x < -100: |
|
| 46 |
return .red |
|
| 47 |
case let x where x < -80: |
|
| 48 |
return .orange |
|
| 49 |
default: |
|
| 50 |
return .green |
|
| 51 |
} |
|
| 52 |
} |
|
| 53 | ||
| 54 |
} |
|
| 55 | ||
| 56 | ||
| 57 |
struct RSSIView_Previews: PreviewProvider {
|
|
| 58 |
static var previews: some View {
|
|
| 59 |
RSSIView(RSSI: -80).frame(width: 20, height: 20, alignment: .center) |
|
| 60 |
} |
|
| 61 |
} |