#import "XGChart.h"

//  configuration
  XGChartConfiguration *configuration = [[XGChartConfiguration alloc] init];
  configuration.chartType = XGChartTypeLineChart;
  configuration.paddingTop = 20;
  configuration.paddingLeft = 20;
  configuration.paddingBottom = 20;
  configuration.paddingRight = 20;
  configuration.xGridCount = 3;
  configuration.yGridCount = 4;
  configuration.gridColor = [UIColor grayColor];
  configuration.xAxisLabelColor = [UIColor whiteColor];
  configuration.xAxisLabelFontSize = 12;
  configuration.yAxisLabelColor = [UIColor whiteColor];
  configuration.yAxisLabelFontSize = 12;
  NSMutableArray<XGChartPoint *> *chartPoints = [[NSMutableArray alloc] init];
  for (int i = 1; i < 31; i++) {
    XGChartPoint *point =
        [[XGChartPoint alloc] initWithX:i andY:arc4random_uniform(100)];
    [chartPoints addObject:point];
  }
  configuration.chartPoints = chartPoints;
  configuration.strokeColor = [UIColor redColor];
  configuration.fillColor = [UIColor redColor];
  configuration.lineWidth = 3;
  //  line chart
  XGChart *lineChart = [[XGChart alloc]
      initWithFrame:CGRectMake(0, 64, self.view.bounds.size.width,
                               (self.view.bounds.size.height - 64) / 3)
      configuration:configuration];
  lineChart.backgroundColor = [UIColor blackColor];
  [self.view addSubview:lineChart];