用 Charts 绘图表框架制作统计图

集成 Charts 框架：http://www.th7.cn/Program/IOS/201610/978760.shtml
还要另外集成 Masonry 框架

使用举例：

折线图：

@interface LineViewController ()<ChartViewDelegate>@property (nonatomic,strong) LineChartView *LineChartView;@property (nonatomic, strong) LineChartData *data;@end@implementation LineViewController- (void)viewDidLoad {    [super viewDidLoad];    // Do any additional setup after loading the view.    self.view.backgroundColor = [UIColor colorWithRed:230/255.0f green:253/255.0f blue:253/255.0f alpha:1];    //title    UILabel *title_label = [[UILabel alloc] init];    title_label.text = @"Line Chart";    title_label.font = [UIFont systemFontOfSize:45];    title_label.textColor = [UIColor brownColor];    title_label.textAlignment = NSTextAlignmentCenter;    [self.view addSubview:title_label];    [title_label mas_makeConstraints:^(MASConstraintMaker *make) {        make.size.mas_equalTo(CGSizeMake(260, 50));        make.centerX.equalTo(self.view.mas_centerX);        make.centerY.equalTo(self.view.mas_centerY).offset(-200);    }];    //updateData btn    UIButton *display_btn = [[UIButton alloc] init];    [display_btn setTitle:@"updateData" forState:UIControlStateNormal];    [display_btn setTitleColor:[UIColor blueColor] forState:UIControlStateNormal];    display_btn.titleLabel.textAlignment = NSTextAlignmentCenter;    [self.view addSubview:display_btn];    [display_btn mas_makeConstraints:^(MASConstraintMaker *make) {        make.size.mas_equalTo(CGSizeMake(200, 50));        make.centerX.equalTo(self.view.mas_centerX);        make.centerY.equalTo(self.view.mas_centerY).offset(240);    }];    [display_btn addTarget:self action:@selector(updateData) forControlEvents:UIControlEventTouchUpInside];    //添加LineChartView    self.LineChartView = [[LineChartView alloc] init];    self.LineChartView.delegate = self;//设置代理    [self.view addSubview:self.LineChartView];    [self.LineChartView mas_makeConstraints:^(MASConstraintMaker *make) {        make.size.mas_equalTo(CGSizeMake(self.view.bounds.size.width-20, 300));        make.center.mas_equalTo(self.view);    }];    //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.data = [self setData];    self.LineChartView.data = self.data;    [self.LineChartView animateWithXAxisDuration:1.0f];}-(void)updateData{    self.data = [self setData];    self.LineChartView.data = self.data;    [self.LineChartView animateWithXAxisDuration:2.0f];}//为折线图设置数据- (LineChartData *)setData{    int xVals_count = 12;//X轴上要显示多少条数据    double maxYVal = 100;//Y轴的最大值    //X轴上面需要显示的数据    NSMutableArray *xVals = [[NSMutableArray alloc] init];    for (int i = 0; i < xVals_count; i++) {        [xVals addObject:[NSString stringWithFormat:@"%d月", i+1]];    }    //对应Y轴上面需要显示的数据    NSMutableArray *yVals = [[NSMutableArray alloc] init];    for (int i = 0; i < xVals_count; i++) {        double mult = maxYVal + 1;        double val = (double)(arc4random_uniform(mult));        ChartDataEntry *entry = [[ChartDataEntry alloc] initWithValue:val xIndex:i];        [yVals addObject:entry];    }    LineChartDataSet *set1 = nil;    if (self.LineChartView.data.dataSetCount > 0) {        LineChartData *data = (LineChartData *)self.LineChartView.data;        set1 = (LineChartDataSet *)data.dataSets[0];        set1.yVals = yVals;        return data;    }else{        //创建LineChartDataSet对象        set1 = [[LineChartDataSet alloc] initWithYVals:yVals label:@"lineName"];        //设置折线的样式        set1.lineWidth = 1.0/[UIScreen mainScreen].scale;//折线宽度        set1.drawValuesEnabled = YES;//是否在拐点处显示数据        set1.valueColors = @[[UIColor brownColor]];//折线拐点处显示数据的颜色        [set1 setColor:[self colorWithHexString:@"#007FFF"]];//折线颜色        set1.drawSteppedEnabled = NO;//是否开启绘制阶梯样式的折线图        //折线拐点样式        set1.drawCirclesEnabled = NO;//是否绘制拐点        set1.circleRadius = 4.0f;//拐点半径        set1.circleColors = @[[UIColor redColor], [UIColor greenColor]];//拐点颜色        //拐点中间的空心样式        set1.drawCircleHoleEnabled = YES;//是否绘制中间的空心        set1.circleHoleRadius = 2.0f;//空心的半径        set1.circleHoleColor = [UIColor blackColor];//空心的颜色        //折线的颜色填充样式        //第一种填充样式:单色填充        //        set1.drawFilledEnabled = YES;//是否填充颜色        //        set1.fillColor = [UIColor redColor];//填充颜色        //        set1.fillAlpha = 0.3;//填充颜色的透明度        //第二种填充样式:渐变填充        set1.drawFilledEnabled = YES;//是否填充颜色        NSArray *gradientColors = @[(id)[ChartColorTemplates colorFromString:@"#FFFFFFFF"].CGColor,                                    (id)[ChartColorTemplates colorFromString:@"#FF007FFF"].CGColor];        CGGradientRef gradientRef = CGGradientCreateWithColors(nil, (CFArrayRef)gradientColors, nil);        set1.fillAlpha = 0.3f;//透明度        set1.fill = [ChartFill fillWithLinearGradient:gradientRef angle:90.0f];//赋值填充颜色对象        CGGradientRelease(gradientRef);//释放gradientRef        //点击选中拐点的交互样式        set1.highlightEnabled = YES;//选中拐点,是否开启高亮效果(显示十字线)        set1.highlightColor = [self colorWithHexString:@"#c83c23"];//点击选中拐点的十字线的颜色        set1.highlightLineWidth = 1.0/[UIScreen mainScreen].scale;//十字线宽度        set1.highlightLineDashLengths = @[@5, @5];//十字线的虚线样式        //将 LineChartDataSet 对象放入数组中        NSMutableArray *dataSets = [[NSMutableArray alloc] init];        [dataSets addObject:set1];        //添加第二个LineChartDataSet对象        //        LineChartDataSet *set2 = [set1 copy];        //        NSMutableArray *yVals2 = [[NSMutableArray alloc] init];        //        for (int i = 0; i < xVals_count; i++) {        //            double mult = maxYVal + 1;        //            double val = (double)(arc4random_uniform(mult));        //            ChartDataEntry *entry = [[ChartDataEntry alloc] initWithValue:val xIndex:i];        //            [yVals2 addObject:entry];        //        }        //        set2.yVals = yVals2;        //        [set2 setColor:[UIColor redColor]];        //        set2.drawFilledEnabled = YES;//是否填充颜色        //        set2.fillColor = [UIColor redColor];//填充颜色        //        set2.fillAlpha = 0.1;//填充颜色的透明度        //        [dataSets addObject:set2];        //创建 LineChartData 对象, 此对象就是lineChartView需要最终数据对象        LineChartData *data = [[LineChartData alloc] initWithXVals:xVals dataSets:dataSets];        [data setValueFont:[UIFont fontWithName:@"HelveticaNeue-Light" size:8.f]];//文字字体        [data setValueTextColor:[UIColor grayColor]];//文字颜色        NSNumberFormatter *formatter = [[NSNumberFormatter alloc] init];        //自定义数据显示格式        [formatter setNumberStyle:NSNumberFormatterDecimalStyle];        [formatter setPositiveFormat:@"#0.0"];        [data setValueFormatter:formatter];        return data;    }}#pragma mark - ChartViewDelegate//点击选中折线拐点时回调- (void)chartValueSelected:(ChartViewBase * _Nonnull)chartView entry:(ChartDataEntry * _Nonnull)entry dataSetIndex:(NSInteger)dataSetIndex highlight:(ChartHighlight * _Nonnull)highlight{    NSLog(@"---chartValueSelected---value: %g", entry.value);}//没有选中折线拐点时回调- (void)chartValueNothingSelected:(ChartViewBase * _Nonnull)chartView{    NSLog(@"---chartValueNothingSelected---");}//放大折线图时回调- (void)chartScaled:(ChartViewBase * _Nonnull)chartView scaleX:(CGFloat)scaleX scaleY:(CGFloat)scaleY{    NSLog(@"---chartScaled---scaleX:%g, scaleY:%g", scaleX, scaleY);}//拖拽折线图时回调- (void)chartTranslated:(ChartViewBase * _Nonnull)chartView dX:(CGFloat)dX dY:(CGFloat)dY{    NSLog(@"---chartTranslated---dX:%g, dY:%g", dX, dY);}- (void)didReceiveMemoryWarning {    [super didReceiveMemoryWarning];    // Dispose of any resources that can be recreated.}//将十六进制颜色转换为 UIColor 对象- (UIColor *)colorWithHexString:(NSString *)color{    NSString *cString = [[color stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]] uppercaseString];    // String should be 6 or 8 characters    if ([cString length] < 6) {        return [UIColor clearColor];    }    // strip "0X" or "#" if it appears    if ([cString hasPrefix:@"0X"])        cString = [cString substringFromIndex:2];    if ([cString hasPrefix:@"#"])        cString = [cString substringFromIndex:1];    if ([cString length] != 6)        return [UIColor clearColor];    // Separate into r, g, b substrings    NSRange range;    range.location = 0;    range.length = 2;    //r    NSString *rString = [cString substringWithRange:range];    //g    range.location = 2;    NSString *gString = [cString substringWithRange:range];    //b    range.location = 4;    NSString *bString = [cString substringWithRange:range];    // Scan values    unsigned int r, g, b;    [[NSScanner scannerWithString:rString] scanHexInt:&r];    [[NSScanner scannerWithString:gString] scanHexInt:&g];    [[NSScanner scannerWithString:bString] scanHexInt:&b];    return [UIColor colorWithRed:((float) r / 255.0f) green:((float) g / 255.0f) blue:((float) b / 255.0f) alpha:1.0f];}@end

饼状图：

#define BgColor [UIColor colorWithRed:230/255.0f green:253/255.0f blue:253/255.0f alpha:1]@interface PieViewController ()@property (nonatomic, strong) PieChartView *pieChartView;@property (nonatomic, strong) PieChartData *data;@end@implementation PieViewController- (void)viewDidLoad {    [super viewDidLoad];    // Do any additional setup after loading the view, typically from a nib.    self.view.backgroundColor = BgColor;    //title    UILabel *title_label = [[UILabel alloc] init];    title_label.text = @"饼状图";    title_label.font = [UIFont systemFontOfSize:45];    title_label.textColor = [UIColor brownColor];    title_label.textAlignment = NSTextAlignmentCenter;    [self.view addSubview:title_label];    [title_label mas_makeConstraints:^(MASConstraintMaker *make) {        make.size.mas_equalTo(CGSizeMake(260, 50));        make.centerX.equalTo(self.view.mas_centerX);        make.centerY.equalTo(self.view.mas_centerY).offset(-200);    }];    //updateData btn    UIButton *display_btn = [[UIButton alloc] init];    [display_btn setTitle:@"updateData" forState:UIControlStateNormal];    [display_btn setTitleColor:[UIColor blueColor] forState:UIControlStateNormal];    display_btn.titleLabel.textAlignment = NSTextAlignmentCenter;    [self.view addSubview:display_btn];    [display_btn mas_makeConstraints:^(MASConstraintMaker *make) {        make.size.mas_equalTo(CGSizeMake(200, 50));        make.centerX.equalTo(self.view.mas_centerX);        make.centerY.equalTo(self.view.mas_centerY).offset(240);    }];    [display_btn addTarget:self action:@selector(updateData) forControlEvents:UIControlEventTouchUpInside];    //创建饼状图    self.pieChartView = [[PieChartView alloc] init];    self.pieChartView.backgroundColor = BgColor;    [self.view addSubview:self.pieChartView];    [self.pieChartView mas_makeConstraints:^(MASConstraintMaker *make) {        make.size.mas_equalTo(CGSizeMake(300, 300));        make.center.mas_equalTo(self.view);    }];    //基本样式    [self.pieChartView setExtraOffsetsWithLeft:15 top:0 right:15 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 = NO;//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 = @"我是一个饼状图描述文字";    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 = ChartLegendFormSquare;//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.data = [self setData];    self.pieChartView.data = self.data;    //设置动画效果    [self.pieChartView animateWithXAxisDuration:1.0f easingOption:ChartEasingOptionEaseOutExpo];}- (void)updateData{    //为饼状图提供数据    self.data = [self setData];    self.pieChartView.data = self.data;    //设置动画效果    [self.pieChartView animateWithXAxisDuration:1.0f easingOption:ChartEasingOptionEaseOutExpo];}- (PieChartData *)setData{    double mult = 100;    int count = 5;//饼状图总共有几块组成    //每个区块的数据    NSMutableArray *yVals = [[NSMutableArray alloc] init];    for (int i = 0; i < count; i++) {        double randomVal = arc4random_uniform(mult + 1);        BarChartDataEntry *entry = [[BarChartDataEntry alloc] initWithValue:randomVal xIndex:i];        [yVals addObject:entry];    }    //每个区块的名称或描述    NSMutableArray *xVals = [[NSMutableArray alloc] init];    for (int i = 0; i < count; i++) {        NSString *title = [NSString stringWithFormat:@"part%d", i+1];        [xVals addObject:title];    }    //dataSet    PieChartDataSet *dataSet = [[PieChartDataSet alloc] initWithYVals:yVals label:@""];    dataSet.drawValuesEnabled = YES;//是否绘制显示数据    NSMutableArray *colors = [[NSMutableArray alloc] init];    [colors addObjectsFromArray:ChartColorTemplates.vordiplom];    [colors addObjectsFromArray:ChartColorTemplates.joyful];    [colors addObjectsFromArray:ChartColorTemplates.colorful];    [colors addObjectsFromArray:ChartColorTemplates.liberty];    [colors addObjectsFromArray:ChartColorTemplates.pastel];    [colors addObject:[UIColor colorWithRed:51/255.f green:181/255.f blue:229/255.f alpha:1.f]];    dataSet.colors = colors;//区块颜色    dataSet.sliceSpace = 3;//相邻区块之间的间距    dataSet.selectionShift = 8;//选中区块时, 放大的半径    dataSet.xValuePosition = PieChartValuePositionInsideSlice;//名称位置    dataSet.yValuePosition = PieChartValuePositionOutsideSlice;//数据位置    //数据与区块之间的用于指示的折线样式    dataSet.valueLinePart1OffsetPercentage = 0.85;//折线中第一段起始位置相对于区块的偏移量, 数值越大, 折线距离区块越远    dataSet.valueLinePart1Length = 0.5;//折线中第一段长度占比    dataSet.valueLinePart2Length = 0.4;//折线中第二段长度最大占比    dataSet.valueLineWidth = 1;//折线的粗细    dataSet.valueLineColor = [UIColor brownColor];//折线颜色    //data    PieChartData *data = [[PieChartData alloc] initWithXVals:xVals dataSet:dataSet];    NSNumberFormatter *formatter = [[NSNumberFormatter alloc] init];    formatter.numberStyle = NSNumberFormatterPercentStyle;    formatter.maximumFractionDigits = 0;//小数位数    formatter.multiplier = @1.f;    [data setValueFormatter:formatter];//设置显示数据格式    [data setValueTextColor:[UIColor brownColor]];    [data setValueFont:[UIFont systemFontOfSize:10]];    return data;}@end

雷达图：

#define BgColor [UIColor colorWithRed:230/255.0f green:253/255.0f blue:253/255.0f alpha:1]@interface RadarViewController ()<ChartViewDelegate>@property (nonatomic, strong) RadarChartView *radarChartView;@property (nonatomic, strong) RadarChartData *data;@end@implementation RadarViewController- (void)viewDidLoad {    [super viewDidLoad];    // Do any additional setup after loading the view, typically from a nib.    self.view.backgroundColor = BgColor;    //title    UILabel *title_label = [[UILabel alloc] init];    title_label.text = @"Radar Chart";    title_label.font = [UIFont systemFontOfSize:45];    title_label.textColor = [UIColor brownColor];    title_label.textAlignment = NSTextAlignmentCenter;    [self.view addSubview:title_label];    [title_label mas_makeConstraints:^(MASConstraintMaker *make) {        make.size.mas_equalTo(CGSizeMake(260, 50));        make.centerX.equalTo(self.view.mas_centerX);        make.centerY.equalTo(self.view.mas_centerY).offset(-200);    }];    //updateData btn    UIButton *display_btn = [[UIButton alloc] init];    [display_btn setTitle:@"updateData" forState:UIControlStateNormal];    [display_btn setTitleColor:[UIColor blueColor] forState:UIControlStateNormal];    display_btn.titleLabel.textAlignment = NSTextAlignmentCenter;    [self.view addSubview:display_btn];    [display_btn mas_makeConstraints:^(MASConstraintMaker *make) {        make.size.mas_equalTo(CGSizeMake(200, 50));        make.centerX.equalTo(self.view.mas_centerX);        make.centerY.equalTo(self.view.mas_centerY).offset(240);    }];    [display_btn addTarget:self action:@selector(updateData) forControlEvents:UIControlEventTouchUpInside];    //创建雷达图对象    self.radarChartView = [[RadarChartView alloc] init];    self.radarChartView.backgroundColor = BgColor;    [self.view addSubview:self.radarChartView];    [self.radarChartView mas_makeConstraints:^(MASConstraintMaker *make) {        make.size.mas_equalTo(CGSizeMake(300, 300));        make.center.mas_equalTo(self.view);    }];    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.data = [self setData];    self.radarChartView.data = self.data;    [self.radarChartView renderer];    //设置动画    [self.radarChartView animateWithYAxisDuration:0.1f];}//刷新数据- (void)updateData{    self.data = [self setData];    self.radarChartView.data = self.data;    [self.radarChartView animateWithYAxisDuration:0.1f];}//创建数据- (RadarChartData *)setData{    double mult = 100;    int count = 12;//维度的个数    //每个维度的名称或描述    NSMutableArray *xVals = [[NSMutableArray alloc] init];    for (int i = 0; i < count; i++) {        [xVals addObject:[NSString stringWithFormat:@"%d 月", i+1]];    }    //每个维度的数据    NSMutableArray *yVals1 = [[NSMutableArray alloc] init];    for (int i = 0; i < count; i++) {        double randomVal = arc4random_uniform(mult) + mult / 2;//产生 50~150 的随机数        ChartDataEntry *entry = [[ChartDataEntry alloc] initWithValue:randomVal xIndex:i];        [yVals1 addObject:entry];    }    RadarChartDataSet *set1 = [[RadarChartDataSet alloc] initWithYVals:yVals1 label:@"set 1"];    set1.lineWidth = 0.5;//数据折线线宽    [set1 setColor:[self colorWithHexString:@"#ff8936"]];//数据折线颜色    set1.drawFilledEnabled = YES;//是否填充颜色    set1.fillColor = [self colorWithHexString:@"#ff8936"];//填充颜色    set1.fillAlpha = 0.25;//填充透明度    set1.drawValuesEnabled = NO;//是否绘制显示数据    set1.valueFont = [UIFont systemFontOfSize:9];//字体    set1.valueTextColor = [UIColor grayColor];//颜色    //    NSMutableArray *yVals2 = [[NSMutableArray alloc] init];    //    for (int i = 0; i < count; i++) {    //        double randomVal = arc4random_uniform(mult) + mult / 2;//产生 50~150 的随机数    //        ChartDataEntry *entry = [[ChartDataEntry alloc] initWithValue:randomVal xIndex:i];    //        [yVals2 addObject:entry];    //    }    //    RadarChartDataSet *set2 = [[RadarChartDataSet alloc] initWithYVals:yVals2 label:@"set 2"];    //    set2.lineWidth = 0.5;//数据折线线宽    //    set2.drawFilledEnabled = YES;//是否填充颜色    //    [set2 setColor:[self colorWithHexString:@"#ff2d51"]];    //    set2.fillColor = [self colorWithHexString:@"#ff2d51"];    //    set2.fillAlpha = 0.25;//填充透明度    //    set2.drawValuesEnabled = NO;//是否绘制显示数据    //    set2.valueFont = [UIFont systemFontOfSize:9];//字体    //    set2.valueTextColor = [UIColor grayColor];//颜色    RadarChartData *data = [[RadarChartData alloc] initWithXVals:xVals dataSets:@[set1]];    return data;}- (void)chartValueSelected:(ChartViewBase * _Nonnull)chartView entry:(ChartDataEntry * _Nonnull)entry dataSetIndex:(NSInteger)dataSetIndex highlight:(ChartHighlight * _Nonnull)highlight{    NSLog(@"chartValueSelected");}- (void)chartValueNothingSelected:(ChartViewBase * _Nonnull)chartView{    NSLog(@"chartValueNothingSelected");}- (void)chartScaled:(ChartViewBase * _Nonnull)chartView scaleX:(CGFloat)scaleX scaleY:(CGFloat)scaleY{    NSLog(@"chartScaled");}- (void)chartTranslated:(ChartViewBase * _Nonnull)chartView dX:(CGFloat)dX dY:(CGFloat)dY{    NSLog(@"chartTranslated");}- (void)didReceiveMemoryWarning {    [super didReceiveMemoryWarning];    // Dispose of any resources that can be recreated.}//将十六进制颜色转换为 UIColor 对象- (UIColor *)colorWithHexString:(NSString *)color{    NSString *cString = [[color stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]] uppercaseString];    // String should be 6 or 8 characters    if ([cString length] < 6) {        return [UIColor clearColor];    }    // strip "0X" or "#" if it appears    if ([cString hasPrefix:@"0X"])        cString = [cString substringFromIndex:2];    if ([cString hasPrefix:@"#"])        cString = [cString substringFromIndex:1];    if ([cString length] != 6)        return [UIColor clearColor];    // Separate into r, g, b substrings    NSRange range;    range.location = 0;    range.length = 2;    //r    NSString *rString = [cString substringWithRange:range];    //g    range.location = 2;    NSString *gString = [cString substringWithRange:range];    //b    range.location = 4;    NSString *bString = [cString substringWithRange:range];    // Scan values    unsigned int r, g, b;    [[NSScanner scannerWithString:rString] scanHexInt:&r];    [[NSScanner scannerWithString:gString] scanHexInt:&g];    [[NSScanner scannerWithString:bString] scanHexInt:&b];    return [UIColor colorWithRed:((float) r / 255.0f) green:((float) g / 255.0f) blue:((float) b / 255.0f) alpha:1.0f];}@end

柱状图：

@interface BarViewController ()<ChartViewDelegate>@property (nonatomic, strong) BarChartView *barChartView;@property (nonatomic, strong) BarChartData *data;@end@implementation BarViewController- (void)viewDidLoad {    [super viewDidLoad];    // Do any additional setup after loading the view, typically from a nib.    self.view.backgroundColor = [UIColor colorWithRed:230/255.0f green:253/255.0f blue:253/255.0f alpha:1];    //title    UILabel *title_label = [[UILabel alloc] init];    title_label.text = @"Bar Chart";    title_label.font = [UIFont systemFontOfSize:45];    title_label.textColor = [UIColor brownColor];    title_label.textAlignment = NSTextAlignmentCenter;    [self.view addSubview:title_label];    [title_label mas_makeConstraints:^(MASConstraintMaker *make) {        make.size.mas_equalTo(CGSizeMake(200, 50));        make.centerX.equalTo(self.view.mas_centerX);        make.centerY.equalTo(self.view.mas_centerY).offset(-200);    }];    //updateData btn    UIButton *display_btn = [[UIButton alloc] init];    [display_btn setTitle:@"updateData" forState:UIControlStateNormal];    [display_btn setTitleColor:[UIColor blueColor] forState:UIControlStateNormal];    display_btn.titleLabel.textAlignment = NSTextAlignmentCenter;    [self.view addSubview:display_btn];    [display_btn mas_makeConstraints:^(MASConstraintMaker *make) {        make.size.mas_equalTo(CGSizeMake(200, 50));        make.centerX.equalTo(self.view.mas_centerX);        make.centerY.equalTo(self.view.mas_centerY).offset(240);    }];    [display_btn addTarget:self action:@selector(updateData) forControlEvents:UIControlEventTouchUpInside];    //添加barChartView    self.barChartView = [[BarChartView alloc] init];    self.barChartView.delegate = self;//设置代理    [self.view addSubview:self.barChartView];    [self.barChartView mas_makeConstraints:^(MASConstraintMaker *make) {        make.size.mas_equalTo(CGSizeMake(self.view.bounds.size.width-20, 300));        make.center.mas_equalTo(self.view);    }];    //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.data = [self setData];    //为柱形图提供数据    self.barChartView.data = self.data;    //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];}//为柱形图设置数据- (BarChartData *)setData{    int xVals_count = 12;//X轴上要显示多少条数据    double maxYVal = 100;//Y轴的最大值    //X轴上面需要显示的数据    NSMutableArray *xVals = [[NSMutableArray alloc] init];    for (int i = 0; i < xVals_count; i++) {        [xVals addObject:[NSString stringWithFormat:@"%d月", i+1]];    }    //对应Y轴上面需要显示的数据    NSMutableArray *yVals = [[NSMutableArray alloc] init];    for (int i = 0; i < xVals_count; i++) {        double mult = maxYVal + 1;        double val = (double)(arc4random_uniform(mult));        BarChartDataEntry *entry = [[BarChartDataEntry alloc] initWithValue:val xIndex:i];        [yVals addObject:entry];    }    //创建BarChartDataSet对象，其中包含有Y轴数据信息，以及可以设置柱形样式    BarChartDataSet *set1 = [[BarChartDataSet alloc] initWithYVals:yVals label:nil];    set1.barSpace = 0.2;//柱形之间的间隙占整个柱形(柱形+间隙)的比例    set1.drawValuesEnabled = YES;//是否在柱形图上面显示数值    set1.highlightEnabled = NO;//点击选中柱形图是否有高亮效果，（双击空白处取消选中）    [set1 setColors:ChartColorTemplates.material];//设置柱形图颜色    //将BarChartDataSet对象放入数组中    NSMutableArray *dataSets = [[NSMutableArray alloc] init];    [dataSets addObject:set1];    //创建BarChartData对象, 此对象就是barChartView需要最终数据对象    BarChartData *data = [[BarChartData alloc] initWithXVals:xVals dataSets:dataSets];    [data setValueFont:[UIFont fontWithName:@"HelveticaNeue-Light" size:10.f]];//文字字体    [data setValueTextColor:[UIColor orangeColor]];//文字颜色    NSNumberFormatter *formatter = [[NSNumberFormatter alloc] init];    //自定义数据显示格式    [formatter setNumberStyle:NSNumberFormatterDecimalStyle];    [formatter setPositiveFormat:@"#0.0"];    [data setValueFormatter:formatter];    return data;}-(void)updateData{    //数据改变时，刷新数据    self.data = [self setData];    self.barChartView.data = self.data;    [self.barChartView notifyDataSetChanged];}#pragma mark - ChartViewDelegate//点击选中柱形时回调- (void)chartValueSelected:(ChartViewBase * _Nonnull)chartView entry:(ChartDataEntry * _Nonnull)entry dataSetIndex:(NSInteger)dataSetIndex highlight:(ChartHighlight * _Nonnull)highlight{    NSLog(@"---chartValueSelected---value: %g", entry.value);}//没有选中柱形图时回调，当选中一个柱形图后，在空白处双击，就可以取消选择，此时会回调此方法- (void)chartValueNothingSelected:(ChartViewBase * _Nonnull)chartView{    NSLog(@"---chartValueNothingSelected---");}//放大图表时回调- (void)chartScaled:(ChartViewBase * _Nonnull)chartView scaleX:(CGFloat)scaleX scaleY:(CGFloat)scaleY{    NSLog(@"---chartScaled---scaleX:%g, scaleY:%g", scaleX, scaleY);}//拖拽图表时回调- (void)chartTranslated:(ChartViewBase * _Nonnull)chartView dX:(CGFloat)dX dY:(CGFloat)dY{    NSLog(@"---chartTranslated---dX:%g, dY:%g", dX, dY);}@end