val stockChartConfig = StockChartConfig()
stock_chart.setConfig(stockChartConfig)

// K线图的配置与工厂
val kChartConfig = KChartConfig()
val kChartFactory = KChartFactory(stockChart = stock_chart, childChartConfig = kChartConfig)

// 时间条图的配置与工厂
val timeBarConfig = TimeBarConfig()
val timeBarFactory = TimeBarFactory(stockChart = stock_chart, childChartConfig = timeBarConfig)

// MACD指标图的配置与工厂
val macdChartConfig = MacdChartConfig()
val macdChartFactory =
    MacdChartFactory(stockChart = stock_chart, childChartConfig = macdChartConfig)

// 将需要显示的子图的工厂加入全局配置
stockChartConfig.addChildCharts(kChartFactory, timeBarFactory, macdChartFactory)

// 加载模拟数据
Data.loadDayData(this, 0) { kEntities: List<IKEntity> ->

    // 初始显示最后50条数据
    val pageSize = 50

    // 设置加载到的数据
    stockChartConfig.setKEntities(
        kEntities,
        showStartIndex = kEntities.size - pageSize,
        showEndIndex = kEntities.size - 1
    )

    // 通知更新K线图
    stock_chart.notifyChanged()
}

class CustomChartConfig(
    height: Int = DEFAULT_CHILD_CHART_HEIGHT,
    marginTop: Int = DEFAULT_CHILD_CHART_MARGIN_TOP,
    marginBottom: Int = DEFAULT_CHILD_CHART_MARGIN_BOTTOM,
    onHighlightListener: OnHighlightListener? = null,
    chartMainDisplayAreaPaddingTop: Float = DEFAULT_CHART_MAIN_DISPLAY_AREA_PADDING_TOP,
    chartMainDisplayAreaPaddingBottom: Float = DEFAULT_CHART_MAIN_DISPLAY_AREA_PADDING_BOTTOM,
    var bigLabel: String? = null
) : BaseChildChartConfig(
    height,
    marginTop,
    marginBottom,
    onHighlightListener,
    chartMainDisplayAreaPaddingTop,
    chartMainDisplayAreaPaddingBottom
)

class CustomChart(
    stockChart: IStockChart,
    chartConfig: CustomChartConfig
) : BaseChildChart<CustomChartConfig>(stockChart, chartConfig) {

    override fun onKEntitiesChanged() {
        // 如果需要的话，在这里处理K先数据变化后要做的事  
    }

    override fun getYValueRange(startIndex: Int, endIndex: Int, result: FloatArray) {
        // 提供指定下标范围内[startIndex ~ endIndex]，y轴逻辑坐标的范围值  
    }

    override fun preDrawBackground(canvas: Canvas) {
        // ... 绘制细节 
    }

    override fun drawBackground(canvas: Canvas) {
        // ... 绘制细节  
    }

    override fun preDrawData(canvas: Canvas) {
        // ... 绘制细节
    }

    override fun drawData(canvas: Canvas) {
        // ... 绘制细节
    }

    override fun preDrawHighlight(canvas: Canvas) {
        // ... 绘制细节 
    }

    override fun drawHighlight(canvas: Canvas) {
        // ... 绘制细节 
    }

    override fun drawAddition(canvas: Canvas) {
        // ... 绘制细节 
    }
}

class CustomChartFactory(stockChart: IStockChart, childChartConfig: CustomChartConfig) :
    AbsChildChartFactory<CustomChartConfig>(stockChart, childChartConfig) {
    override fun createChart() = CustomChart(stockChart, childChartConfig)
}

// 自定义子图的使用

// 自定义子图的配置与工厂
val customChartConfig = CustomChartConfig()
val customChartFactory = CustomChartFactory(stock_chart, customChartConfig)
// 添加子图
stockChartConfig.addChildCharts(customChartFactory)
// 更新UI
stock_chart.notifyChanged()