这篇文章将为大家详细讲解有关iOS如何实现多条折线图封装，小编觉得挺实用的，因此分享给大家做个参考，希望大家阅读完这篇文章后可以有所收获。
成都创新互联是一家以网络技术公司，为中小企业提供网站维护、成都网站制作、成都网站设计、网站备案、服务器租用、国际域名空间、软件开发、成都小程序开发等企业互联网相关业务，是一家有着丰富的互联网运营推广经验的科技公司，有着多年的网站建站经验，致力于帮助中小企业在互联网让打出自已的品牌和口碑，让企业在互联网上打开一个面向全国乃至全球的业务窗口：建站咨询电话：18980820575
效果图如下：
1、封装类
.h
#define XYQColor(r, g, b) [UIColor colorWithRed:(r)/255.0 green:(g)/255.0 blue:(b)/255.0 alpha:1.0] #define XYQRandomColor XYQColor(arc4random_uniform(256), arc4random_uniform(256), arc4random_uniform(256)) #define MARGIN 30 // 坐标轴与画布间距 #define Y_EVERY_MARGIN 20 // y轴每一个值的间隔数 #import// 线条类型 typedef NS_ENUM(NSInteger, LineType) { LineType_Straight, // 折线 LineType_Curve // 曲线 }; @interface BezierCurveView : UIView //初始化画布 +(instancetype)initWithFrame:(CGRect)frame; //画多根折线图 -(void)drawMoreLineChartViewWithX_Value_Names:(NSMutableArray *)x_names TargetValues:(NSMutableArray *)targetValues LineType:(LineType) lineType; @end
.m
#import "BezierCurveView.h" static CGRect myFrame; @interface BezierCurveView () @end
@implementation BezierCurveView
//初始化画布
+(instancetype)initWithFrame:(CGRect)frame{
BezierCurveView *bezierCurveView = [[BezierCurveView alloc]init];
bezierCurveView.frame = frame;
//背景视图
UIView *backView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, frame.size.width, frame.size.height)];
backView.backgroundColor = [UIColor clearColor];
[bezierCurveView addSubview:backView];
myFrame = frame;
return bezierCurveView;
}/**
* 画坐标轴
*/
-(void)drawXYLine:(NSMutableArray *)x_names{
UIBezierPath *path = [UIBezierPath bezierPath];
//1.Y轴、X轴的直线
[path moveToPoint:CGPointMake(MARGIN, CGRectGetHeight(myFrame)-MARGIN)];
[path addLineToPoint:CGPointMake(MARGIN, MARGIN)];
[path moveToPoint:CGPointMake(MARGIN, CGRectGetHeight(myFrame)-MARGIN)];
[path addLineToPoint:CGPointMake(CGRectGetWidth(myFrame), CGRectGetHeight(myFrame)-MARGIN)];
// //2.添加箭头
// [path moveToPoint:CGPointMake(MARGIN, MARGIN)];
// [path addLineToPoint:CGPointMake(MARGIN-5, MARGIN+5)];
// [path moveToPoint:CGPointMake(MARGIN, MARGIN)];
// [path addLineToPoint:CGPointMake(MARGIN+5, MARGIN+5)];
//
// [path moveToPoint:CGPointMake(CGRectGetWidth(myFrame), CGRectGetHeight(myFrame)-MARGIN)];
// [path addLineToPoint:CGPointMake(CGRectGetWidth(myFrame)-5, CGRectGetHeight(myFrame)-MARGIN-5)];
// [path moveToPoint:CGPointMake(CGRectGetWidth(myFrame), CGRectGetHeight(myFrame)-MARGIN)];
// [path addLineToPoint:CGPointMake(CGRectGetWidth(myFrame)-5, CGRectGetHeight(myFrame)-MARGIN+5)];
//3.添加索引格
//X轴
for (int i=0; i/**
* 画多根折线图
*/
-(void)drawMoreLineChartViewWithX_Value_Names:(NSMutableArray *)x_names TargetValues:(NSMutableArray *)targetValues LineType:(LineType) lineType{
//1.画坐标轴
[self drawXYLine:x_names];
for (int j=0; j2、调用
#define SCREEN_W [UIScreen mainScreen].bounds.size.width
#define SCREEN_H [UIScreen mainScreen].bounds.size.height
//1.初始化
_bezierView = [BezierCurveView initWithFrame:CGRectMake(30, 30, SCREEN_W-60, 280)];
_bezierView.center = self.view.center;
[self.view addSubview:_bezierView];
// 多根折线图
[_bezierView drawMoreLineChartViewWithX_Value_Names:(NSMutableArray *)@[@"语文",@"数学",@"英语",@"物理",@"化学",@"生物",@"政治",@"历史",@"地理"] TargetValues:(NSMutableArray *)@[@[@60,@20,@50,@30,@90,@30,@100,@70, @20],@[@20,@40,@20,@50,@30,@90,@30,@100,@70],@[@10,@30,@40,@70,@50,@30,@20,@10,@80]] LineType:LineType_Straight];
关于“iOS如何实现多条折线图封装”这篇文章就分享到这里了，希望以上内容可以对大家有一定的帮助，使各位可以学到更多知识，如果觉得文章不错，请把它分享出去让更多的人看到。
当前文章：iOS如何实现多条折线图封装
链接URL：http://bjjierui.cn/article/pijjgp.html
