swift 画图 Charts的基本使用

提示：扫一扫查出行
【扫一扫了解最新限行尾号】
复制提示

下面的这些代码呢是在oc工程里里使用的其实和在swift中使用没什么大的差别属性都一样的

//创建饼状图
    self.pieChartView = [[PieChartView alloc] initWithFrame:CGRectMake(20, 80, f_Device_w-40, 300)];
    [self.view addSubview:self.pieChartView];

    //基本样式
    [self.pieChartView setExtraOffsetsWithLeft:30 top:0 right:30 bottom:0];//饼状图距离边缘的间隙
    self.pieChartView.usePercentValuesEnabled = YES;//是否根据所提供的数据, 将显示数据转换为百分比格式
    self.pieChartView.dragDecelerationEnabled = YES;//拖拽饼状图后是否有惯性效果
    self.pieChartView.drawSliceTextEnabled = YES;//是否显示区块文本
    //空心饼状图样式
    self.pieChartView.drawHoleEnabled = YES;//饼状图是否是空心
    self.pieChartView.holeRadiusPercent = 0.5;//空心半径占比
    self.pieChartView.holeColor = [UIColor clearColor];//空心颜色
    self.pieChartView.transparentCircleRadiusPercent = 0.52;//半透明空心半径占比
    self.pieChartView.transparentCircleColor = [UIColor colorWithRed:210/255.0 green:145/255.0 blue:165/255.0 alpha:0.3];//半透明空心的颜色
    //实心饼状图样式
    //    self.pieChartView.drawHoleEnabled = NO;
    //饼状图中间描述
    if (self.pieChartView.isDrawHoleEnabled == YES) {
        self.pieChartView.drawCenterTextEnabled = YES;//是否显示中间文字
        //普通文本
        //        self.pieChartView.centerText = @"饼状图";//中间文字
        //富文本
        NSMutableAttributedString *centerText = [[NSMutableAttributedString alloc] initWithString:@"饼状图"];
        [centerText setAttributes:@{NSFontAttributeName: [UIFont boldSystemFontOfSize:16],NSForegroundColorAttributeName: [UIColor orangeColor]} range:NSMakeRange(0, centerText.length)];
        self.pieChartView.centerAttributedText = centerText;
    }
    //饼状图描述
    self.pieChartView.descriptionText = @"饼状图示例";
    self.pieChartView.descriptionFont = [UIFont systemFontOfSize:10];
    self.pieChartView.descriptionTextColor = [UIColor grayColor];
    //饼状图图例
    self.pieChartView.legend.maxSizePercent = 1;//图例在饼状图中的大小占比, 这会影响图例的宽高
    self.pieChartView.legend.formToTextSpace = 5;//文本间隔
    self.pieChartView.legend.font = [UIFont systemFontOfSize:10];//字体大小
    self.pieChartView.legend.textColor = [UIColor grayColor];//字体颜色
    self.pieChartView.legend.position = ChartLegendPositionBelowChartCenter;//图例在饼状图中的位置
    self.pieChartView.legend.form = ChartLegendFormCircle;//图示样式: 方形、线条、圆形
    self.pieChartView.legend.formSize = 12;//图示大小
    //为饼状图提供数据
    self.pieCData = [self setData];
    self.pieChartView.data = self.pieCData;
    //设置动画效果
    [self.pieChartView animateWithXAxisDuration:1.0f easingOption:ChartEasingOptionEaseOutExpo];

雷达图：

//创建雷达图对象
    self.radarChartView = [[RadarChartView alloc] initWithFrame:CGRectMake(20, 80, f_Device_w-40, 300)];
    [self.view addSubview:self.radarChartView];
    self.radarChartView.delegate = self;
    self.radarChartView.descriptionText = @"";//描述
    self.radarChartView.rotationEnabled = YES;//是否允许转动
    self.radarChartView.highlightPerTapEnabled = YES;//是否能被选中

    //雷达图线条样式
    self.radarChartView.webLineWidth = 0.5;//主干线线宽
    self.radarChartView.webColor = [self colorWithHexString:@"#c2ccd0"];//主干线线宽
    self.radarChartView.innerWebLineWidth = 0.375;//边线宽度
    self.radarChartView.innerWebColor = [self colorWithHexString:@"#c2ccd0"];//边线颜色
    self.radarChartView.webAlpha = 1;//透明度

    //设置 xAxi
    ChartXAxis *xAxis = self.radarChartView.xAxis;
    xAxis.labelFont = [UIFont systemFontOfSize:15];//字体
    xAxis.labelTextColor = [self colorWithHexString:@"#057748"];//颜色

    //设置 yAxis
    ChartYAxis *yAxis = self.radarChartView.yAxis;
    yAxis.axisMinValue = 0.0;//最小值
    yAxis.axisMaxValue = 150.0;//最大值
    yAxis.drawLabelsEnabled = NO;//是否显示 label
    yAxis.labelCount = 6;// label 个数
    yAxis.labelFont = [UIFont systemFontOfSize:9];// label 字体
    yAxis.labelTextColor = [UIColor lightGrayColor];// label 颜色

    //为雷达图提供数据
    self.radarCData = [self setData];
    self.radarChartView.data = self.radarCData;
    [self.radarChartView renderer];

    //设置动画
    [self.radarChartView animateWithYAxisDuration:0.1f];

柱状图：

//添加barChartView
    self.barChartView = [[BarChartView alloc] initWithFrame:CGRectMake(20, 80, f_Device_w-40, 300)];
    self.barChartView.delegate = self;//设置代理
    [self.view addSubview:self.barChartView];

    //基本样式
    self.barChartView.backgroundColor = [UIColor colorWithRed:230/255.0f green:253/255.0f blue:253/255.0f alpha:1];
    self.barChartView.noDataText = @"暂无数据";//没有数据时的文字提示
    self.barChartView.drawValueAboveBarEnabled = YES;//数值显示在柱形的上面还是下面
    self.barChartView.drawHighlightArrowEnabled = NO;//点击柱形图是否显示箭头
    self.barChartView.drawBarShadowEnabled = NO;//是否绘制柱形的阴影背景

    //交互设置
    self.barChartView.scaleYEnabled = NO;//取消Y轴缩放
    self.barChartView.doubleTapToZoomEnabled = NO;//取消双击缩放
    self.barChartView.dragEnabled = YES;//启用拖拽图表
    self.barChartView.dragDecelerationEnabled = YES;//拖拽后是否有惯性效果
    self.barChartView.dragDecelerationFrictionCoef = 0.9;//拖拽后惯性效果的摩擦系数(0~1)，数值越小，惯性越不明显

    //X轴样式
    ChartXAxis *xAxis = self.barChartView.xAxis;
    xAxis.axisLineWidth = 1;//设置X轴线宽
    xAxis.labelPosition = XAxisLabelPositionBottom;//X轴的显示位置，默认是显示在上面的
    xAxis.drawGridLinesEnabled = NO;//不绘制网格线
    xAxis.spaceBetweenLabels = 4;//设置label间隔，若设置为1，则如果能全部显示，则每个柱形下面都会显示label
    xAxis.labelTextColor = [UIColor brownColor];//label文字颜色

    //右边Y轴样式
    self.barChartView.rightAxis.enabled = NO;//不绘制右边轴

    //左边Y轴样式
    ChartYAxis *leftAxis = self.barChartView.leftAxis;//获取左边Y轴
    leftAxis.labelCount = 5;//Y轴label数量，数值不一定，如果forceLabelsEnabled等于YES, 则强制绘制制定数量的label, 但是可能不平均
    leftAxis.forceLabelsEnabled = NO;//不强制绘制制定数量的label
    leftAxis.showOnlyMinMaxEnabled = NO;//是否只显示最大值和最小值
    leftAxis.axisMinValue = 0;//设置Y轴的最小值
    leftAxis.startAtZeroEnabled = YES;//从0开始绘制
    leftAxis.axisMaxValue = 105;//设置Y轴的最大值
    leftAxis.inverted = NO;//是否将Y轴进行上下翻转
    leftAxis.axisLineWidth = 0.5;//Y轴线宽
    leftAxis.axisLineColor = [UIColor blackColor];//Y轴颜色
    leftAxis.valueFormatter = [[NSNumberFormatter alloc] init];//自定义格式
    leftAxis.valueFormatter.positiveSuffix = @" $";//数字后缀单位
    leftAxis.labelPosition = YAxisLabelPositionOutsideChart;//label位置
    leftAxis.labelTextColor = [UIColor brownColor];//文字颜色
    leftAxis.labelFont = [UIFont systemFontOfSize:10.0f];//文字字体
    //网格线样式
    leftAxis.gridLineDashLengths = @[@3.0f, @3.0f];//设置虚线样式的网格线
    leftAxis.gridColor = [UIColor colorWithRed:200/255.0f green:200/255.0f blue:200/255.0f alpha:1];//网格线颜色
    leftAxis.gridAntialiasEnabled = YES;//开启抗锯齿
    //添加限制线
    ChartLimitLine *limitLine = [[ChartLimitLine alloc] initWithLimit:80 label:@"限制线"];
    limitLine.lineWidth = 2;
    limitLine.lineColor = [UIColor greenColor];
    limitLine.lineDashLengths = @[@5.0f, @5.0f];//虚线样式
    limitLine.labelPosition = ChartLimitLabelPositionRightTop;//位置
    [leftAxis addLimitLine:limitLine];//添加到Y轴上
    leftAxis.drawLimitLinesBehindDataEnabled = YES;//设置限制线绘制在柱形图的后面

    //图例说明样式
    self.barChartView.legend.enabled = NO;//不显示图例说明
    //    self.barChartView.legend.position = ChartLegendPositionBelowChartLeft;//位置

    //右下角的description文字样式
    self.barChartView.descriptionText = @"";//不显示，就设为空字符串即可
    //    self.barChartView.descriptionText = @"柱形图";

    self.barCData = [self setData];

    //为柱形图提供数据
    self.barChartView.data = self.barCData;

    //设置动画效果，可以设置X轴和Y轴的动画效果
    [self.barChartView animateWithYAxisDuration:1.0f];

折线图：

//添加折线视图LineChartView
    self.LineChartView = [[LineChartView alloc] initWithFrame:CGRectMake(20, 80, f_Device_w-40, 300)];
    self.LineChartView.delegate = self;//设置代理
    [self.view addSubview:self.LineChartView];

    //基本样式
    self.LineChartView.backgroundColor = [UIColor colorWithRed:230/255.0f green:253/255.0f blue:253/255.0f alpha:1];
    self.LineChartView.noDataText = @"暂无数据";
    //交互样式
    self.LineChartView.scaleYEnabled = NO;//取消Y轴缩放
    self.LineChartView.doubleTapToZoomEnabled = NO;//取消双击缩放
    self.LineChartView.dragEnabled = YES;//启用拖拽图标
    self.LineChartView.dragDecelerationEnabled = YES;//拖拽后是否有惯性效果
    self.LineChartView.dragDecelerationFrictionCoef = 0.9;//拖拽后惯性效果的摩擦系数(0~1)，数值越小，惯性越不明显
    //X轴样式
    ChartXAxis *xAxis = self.LineChartView.xAxis;
    xAxis.axisLineWidth = 1.0/[UIScreen mainScreen].scale;//设置X轴线宽
    xAxis.labelPosition = XAxisLabelPositionBottom;//X轴的显示位置，默认是显示在上面的
    xAxis.drawGridLinesEnabled = NO;//不绘制网格线
    xAxis.spaceBetweenLabels = 4;//设置label间隔
    xAxis.labelTextColor = [self colorWithHexString:@"#057748"];//label文字颜色
    //Y轴样式
    self.LineChartView.rightAxis.enabled = NO;//不绘制右边轴
    ChartYAxis *leftAxis = self.LineChartView.leftAxis;//获取左边Y轴
    leftAxis.labelCount = 5;//Y轴label数量，数值不一定，如果forceLabelsEnabled等于YES, 则强制绘制制定数量的label, 但是可能不平均
    leftAxis.forceLabelsEnabled = NO;//不强制绘制指定数量的label
    leftAxis.showOnlyMinMaxEnabled = NO;//是否只显示最大值和最小值
    leftAxis.axisMinValue = 0;//设置Y轴的最小值
    leftAxis.startAtZeroEnabled = YES;//从0开始绘制
    leftAxis.axisMaxValue = 105;//设置Y轴的最大值
    leftAxis.inverted = NO;//是否将Y轴进行上下翻转
    leftAxis.axisLineWidth = 1.0/[UIScreen mainScreen].scale;//Y轴线宽
    leftAxis.axisLineColor = [UIColor blackColor];//Y轴颜色
    leftAxis.valueFormatter = [[NSNumberFormatter alloc] init];//自定义格式
    leftAxis.valueFormatter.positiveSuffix = @" $";//数字后缀单位
    leftAxis.labelPosition = YAxisLabelPositionOutsideChart;//label位置
    leftAxis.labelTextColor = [self colorWithHexString:@"#057748"];//文字颜色
    leftAxis.labelFont = [UIFont systemFontOfSize:10.0f];//文字字体
    //网格线样式
    leftAxis.gridLineDashLengths = @[@3.0f, @3.0f];//设置虚线样式的网格线
    leftAxis.gridColor = [UIColor colorWithRed:200/255.0f green:200/255.0f blue:200/255.0f alpha:1];//网格线颜色
    leftAxis.gridAntialiasEnabled = YES;//开启抗锯齿
    //添加限制线
    ChartLimitLine *limitLine = [[ChartLimitLine alloc] initWithLimit:80 label:@"限制线"];
    limitLine.lineWidth = 2;
    limitLine.lineColor = [UIColor greenColor];
    limitLine.lineDashLengths = @[@5.0f, @5.0f];//虚线样式
    limitLine.labelPosition = ChartLimitLabelPositionRightTop;//位置
    limitLine.valueTextColor = [self colorWithHexString:@"#057748"];//label文字颜色
    limitLine.valueFont = [UIFont systemFontOfSize:12];//label字体
    [leftAxis addLimitLine:limitLine];//添加到Y轴上
    leftAxis.drawLimitLinesBehindDataEnabled = YES;//设置限制线绘制在折线图的后面
    //描述及图例样式
    [self.LineChartView setDescriptionText:@"折线图"];
    [self.LineChartView setDescriptionTextColor:[UIColor darkGrayColor]];
    self.LineChartView.legend.form = ChartLegendFormLine;
    self.LineChartView.legend.formSize = 30;
    self.LineChartView.legend.textColor = [UIColor darkGrayColor];
    self.lineCData = [self setData];
    self.LineChartView.data = self.lineCData;
    [self.LineChartView animateWithXAxisDuration:1.0f];