PressureCell.swift
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//
// PressureCell.swift
// Twear
//
// Created by yangbin on 2022/2/28.
//
import UIKit
import Charts
class PressureCell: UICollectionViewCell {
@IBOutlet weak var pressureLabel: UILabel!
@IBOutlet weak var detailLabel: UILabel!
@IBOutlet weak var valueLabel: UILabel!
@IBOutlet weak var dateLabel: UILabel!
@IBOutlet weak var noDataImageView: UIImageView!
@IBOutlet weak var lineChartView: LineChartView!
var pressureHistory: [PressureModel] = [] {
didSet {
let count = pressureHistory.count
if count == 0 {
valueLabel.text = "--"
dateLabel.text = LocString("暂无数据")
detailLabel.text = ""
noDataImageView.isHidden = false
lineChartView.isHidden = true
} else {
var value = pressureHistory[count-1].value
if let pressure = pressureHistory.reversed().first(where: {$0.value > 0}) {
value = pressure.value
}
valueLabel.text = "\(value)"
dateLabel.text = pressureHistory[count-1].date!.toString(.custom("yyyy/MM/dd"))
updateChartView(pressureHistory)
noDataImageView.isHidden = true
lineChartView.isHidden = false
switch value {
case 1..<30:
detailLabel.text = LocString("轻松")
case 30..<60:
detailLabel.text = LocString("正常")
case 60..<80:
detailLabel.text = LocString("中等")
case 80..<100:
detailLabel.text = LocString("偏高")
default:
break
}
}
}
}
private func updateChartView(_ pressureHistory: [PressureModel]) {
setupChartView()
var dataEntries = [ChartDataEntry]()
for (i, pressure) in pressureHistory.enumerated() {
dataEntries.append(ChartDataEntry(x: Double(i), y: Double(pressure.value)))
}
if dataEntries.count == 1 {
dataEntries.append(ChartDataEntry(x: dataEntries[0].x+0.5, y: dataEntries[0].y))
}
let dataSet = LineChartDataSet(entries: dataEntries, label: nil)
dataSet.drawCirclesEnabled = false
dataSet.drawValuesEnabled = false
dataSet.mode = .horizontalBezier
dataSet.setDrawHighlightIndicators(false)
dataSet.setColor(UIColor.rgbColorFromHex(0x2AA12B))
dataSet.lineWidth = 1
dataSet.drawFilledEnabled = true
let gradientColors = [UIColor.rgbColorFromHex(0x16E017).cgColor, UIColor.rgbColorFromHex(0xFFFFFF).cgColor]
let gradient = CGGradient(colorsSpace: nil, colors: gradientColors as CFArray, locations: [1.0, 0.0])
dataSet.fillAlpha = 1.0
dataSet.fill = Fill(linearGradient: gradient!, angle: 90)
lineChartView.data = LineChartData(dataSets: [dataSet])
}
func setupChartView() {
lineChartView.chartDescription?.enabled = false
lineChartView.legend.enabled = false
lineChartView.setScaleEnabled(false)
lineChartView.rightAxis.enabled = false
let leftAxis = lineChartView.leftAxis
leftAxis.axisMinimum = 0 //设置左侧Y轴最小值
leftAxis.axisMaximum = 100
leftAxis.granularity = 20
leftAxis.enabled = false
let xAxis = lineChartView.xAxis
xAxis.axisMinimum = 0
xAxis.axisMaximum = 30
xAxis.granularity = 1 //间隔
xAxis.enabled = false
}
override func awakeFromNib() {
super.awakeFromNib()
pressureLabel.text = LocString("压力")
// Initialization code
}
}