柱状图-折线图-饼状图
2017-03-24 本文已影响98人
JonesCxy
下午自己闲着没事,写了一个自定义的柱状图,折线图,以及饼状图
把我自定义的view代码粘贴上来
传送门:https://github.com/JonesCxy/Bezier.git
//
// CxyPieChartView.h
// PieChart
//
// Created by 华美赛佳 on 2017/3/24.
// Copyright © 2017年 JonesCxy. All rights reserved.
//
#import <UIKit/UIKit.h>
#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
// 颜色RGB
#define XYQColor(r, g, b) [UIColor colorWithRed:(r)/255.0 green:(g)/255.0 blue:(b)/255.0 alpha:1.0]
#define XYQColorRGBA(r, g, b, a) [UIColor colorWithRed:(r)/255.0 green:(g)/255.0 blue:(b)/255.0 alpha:a]
// 随机色
#define XYQRandomColor XYQColor(arc4random_uniform(256), arc4random_uniform(256), arc4random_uniform(256))
typedef NS_ENUM(NSInteger,LineType) {
LineType_Straight, // 折线
LineType_Curve // 曲线
};
@interface CxyPieChartView : UIView
// 初始化画布
+(instancetype)initWithFrame:(CGRect)frame;
/**
画折线图
@param x_names x轴值得所有值名称
@param targetValues 所有目标值
@param lineType 直线类型
*/
-(void)drawLineChartView_Value_Names:(NSMutableArray *)x_names TargetValues:(NSMutableArray *)targetValues LineType:(LineType) lineType;
/**
画柱状图
@param x_names x轴值得所有值名称
@param targetValues 所有目标值
*/
-(void)drawBarChartViewWithX_value_Names:(NSMutableArray *)x_names TargetValues:(NSMutableArray *)targetValues;
/**
画饼状图
@param x_names x轴值得所有值得名称
@param targetValues 所有目标值
*/
-(void)drawPieChartViewWithX_Value_Names:(NSMutableArray *)x_names TargetValues:(NSMutableArray *)targetValues;
@end
//
// CxyPieChartView.m
// PieChart
//
// Created by 华美赛佳 on 2017/3/24.
// Copyright © 2017年 JonesCxy. All rights reserved.
//
#import "CxyPieChartView.h"
static CGRect myFrame;
@interface CxyPieChartView ()
@end
@implementation CxyPieChartView
+(instancetype)initWithFrame:(CGRect)frame{
CxyPieChartView *view = [[NSBundle mainBundle]loadNibNamed:@"CxyPieChartView" owner:self options:nil].lastObject;
view.frame = frame;
// 北京视图
UIView *bgView = [[UIView alloc]initWithFrame:CGRectMake(0, 0, frame.size.width, frame.size.height)];
bgView.backgroundColor = XYQColor(255, 229, 239);
[view addSubview:bgView];
myFrame = frame;
return view;
}
-(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(MARGIN+CGRectGetWidth(myFrame)-2*MARGIN, 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(MARGIN+CGRectGetWidth(myFrame)-2*MARGIN, CGRectGetHeight(myFrame)-MARGIN)];
[path addLineToPoint:CGPointMake(MARGIN+CGRectGetWidth(myFrame)-2*MARGIN-5, CGRectGetHeight(myFrame)-MARGIN-5)];
[path moveToPoint:CGPointMake(MARGIN+CGRectGetWidth(myFrame)-2*MARGIN, CGRectGetHeight(myFrame)-MARGIN)];
[path addLineToPoint:CGPointMake(MARGIN+CGRectGetWidth(myFrame)-2*MARGIN-5, CGRectGetHeight(myFrame)-MARGIN+5)];
// 3.添加索引格
for (int i = 0; i<x_names.count; i++) {
CGFloat x= MARGIN + MARGIN * (i+1);
CGPoint point = CGPointMake(x, CGRectGetHeight(myFrame)-MARGIN);
[path moveToPoint:point];
[path addLineToPoint:CGPointMake(point.x, point.y - 3)];
}
// Y轴(实际长度为200,此处比例缩小一倍使用)
for (int i = 0; i<11; i++) {
CGFloat Y = CGRectGetHeight(myFrame)-MARGIN-Y_EVERY_MARGIN*i;
CGPoint point = CGPointMake(MARGIN, Y);
[path moveToPoint:point];
[path addLineToPoint:CGPointMake(point.x+3, point.y)];
}
// 4.添加索引格文字
// X轴
for (int i =0; i<x_names.count; i++) {
CGFloat X = MARGIN + 15 + MARGIN * i;
UILabel *textLabel = [[UILabel alloc]initWithFrame:CGRectMake(X, CGRectGetHeight(myFrame)-MARGIN, MARGIN, 20)];
textLabel.text = x_names[i];
textLabel.font = [UIFont systemFontOfSize:10];
textLabel.textAlignment = NSTextAlignmentCenter;
textLabel.textColor = [UIColor redColor];
[self addSubview:textLabel];
}
// Y轴
for (int i = 0; i<11; i++) {
CGFloat Y = CGRectGetHeight(myFrame)-MARGIN-Y_EVERY_MARGIN*i;
UILabel *textLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, Y-5, MARGIN, 10)];
textLabel.text = [NSString stringWithFormat:@"%d",10*i];
textLabel.font = [UIFont systemFontOfSize:10];
textLabel.textAlignment = NSTextAlignmentCenter;
textLabel.textColor = [UIColor redColor];
[self addSubview:textLabel];
}
// 5.渲染路径
CAShapeLayer *shapeLayer = [CAShapeLayer layer];
shapeLayer.path = path.CGPath;
shapeLayer.strokeColor = [UIColor blackColor].CGColor;
shapeLayer.fillColor = [UIColor clearColor].CGColor;
shapeLayer.borderWidth = 2.0;
[self.subviews[0].layer addSublayer:shapeLayer];
}
// 画折线图
-(void)drawLineChartView_Value_Names:(NSMutableArray *)x_names TargetValues:(NSMutableArray *)targetValues LineType:(LineType)lineType{
// 1.画坐标轴
[self drawXYLine:x_names];
// 2.获取目标值点坐标
NSMutableArray *allPoints = [NSMutableArray array];
for (int i = 0; i<targetValues.count; i++) {
CGFloat doubleValue = 2*[targetValues[i] floatValue];// 目标值放大两倍
CGFloat X = MARGIN + MARGIN * (i+1);
CGFloat Y = CGRectGetHeight(myFrame)-MARGIN-doubleValue;
CGPoint point = CGPointMake(X, Y);
UIBezierPath *path = [UIBezierPath bezierPathWithRoundedRect:CGRectMake(point.x-1, point.y-1, 2.5, 2.5) cornerRadius:2.5];
CAShapeLayer *layer = [CAShapeLayer layer];
layer.strokeColor = [UIColor purpleColor].CGColor;
layer.fillColor = [UIColor purpleColor].CGColor;
layer.path = path.CGPath;
[self.subviews[0].layer addSublayer:layer];
[allPoints addObject:[NSValue valueWithCGPoint:point]];
}
// 3.坐标连线
UIBezierPath *path = [UIBezierPath bezierPath];
[path moveToPoint:[allPoints[0]CGPointValue]];
CGPoint PrePoint;
switch (lineType) {
case LineType_Straight: // 直线
for (int i = 0; i<allPoints.count; i++) {
CGPoint point = [allPoints[i] CGPointValue];
[path addLineToPoint:point];
}
break;
case LineType_Curve: // 曲线
for (int i = 0; i<allPoints.count; i++) {
if (i==0) {
PrePoint = [allPoints[0] CGPointValue];
}else{
CGPoint NowPoint = [allPoints[i] CGPointValue];
[path addCurveToPoint:NowPoint controlPoint1:CGPointMake((PrePoint.x+NowPoint.x)/2.0, PrePoint.y) controlPoint2:CGPointMake((PrePoint.x +NowPoint.x)/2, NowPoint.y)]; // 三次曲线
PrePoint = NowPoint;
}
}
break;
default:
break;
}
CAShapeLayer *shapeLayer = [CAShapeLayer layer];
shapeLayer.path = path.CGPath;
shapeLayer.strokeColor = [UIColor orangeColor].CGColor;
shapeLayer.fillColor = [UIColor clearColor].CGColor;
shapeLayer.borderWidth = 2.0;
[self.subviews[0].layer addSublayer:shapeLayer];
// 4.添加目标值文字
for (int i = 0; i<allPoints.count; i++) {
UILabel *label = [[UILabel alloc] init];
label.textColor = [UIColor purpleColor];
label.textAlignment = NSTextAlignmentCenter;
label.font = [UIFont systemFontOfSize:10];
[self.subviews[0] addSubview:label];
if (i==0) {
CGPoint NowPoint = [allPoints[0] CGPointValue];
label.text = [NSString stringWithFormat:@"%.0lf",(CGRectGetHeight(myFrame)-NowPoint.y-MARGIN)/2];
label.frame = CGRectMake(NowPoint.x-MARGIN/2, NowPoint.y-20, MARGIN, 20);
PrePoint = NowPoint;
}else{
CGPoint NowPoint = [allPoints[i] CGPointValue];
if (NowPoint.y<PrePoint.y) { // 文字置于上方
label.frame = CGRectMake(NowPoint.x-MARGIN/2, NowPoint.y-20, MARGIN, 20);
}else{ // 文字置于点下方
label.frame = CGRectMake(NowPoint.x-MARGIN/2, NowPoint.y, MARGIN, 20);
}
label.text = [NSString stringWithFormat:@"%.01f",(CGRectGetHeight(myFrame)-NowPoint.y-MARGIN)/2];
PrePoint = NowPoint;
}
}
}
-(void)drawBarChartViewWithX_value_Names:(NSMutableArray *)x_names TargetValues:(NSMutableArray *)targetValues{
// 1.画坐标轴
[self drawXYLine:x_names];
// 2.每一个目标值点坐标
for (int i = 0; i<targetValues.count; i++) {
CGFloat doubleValue = 2 * [targetValues[i] floatValue];
CGFloat X = MARGIN + MARGIN*(i+1)+5;
CGFloat Y = CGRectGetHeight(myFrame)-MARGIN-doubleValue;
UIBezierPath *path = [UIBezierPath bezierPathWithRect:CGRectMake(X-MARGIN/2, Y, MARGIN-10, doubleValue)];
CAShapeLayer *shapeLayer = [CAShapeLayer layer];
shapeLayer.path = path.CGPath;
shapeLayer.strokeColor = [UIColor clearColor].CGColor;
shapeLayer.fillColor = XYQRandomColor.CGColor;
shapeLayer.borderWidth = 2.0;
[self.subviews[0].layer addSublayer:shapeLayer];
// 添加文字
UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(X-MARGIN/2, Y-20, MARGIN-10, 20)];
label.text = [NSString stringWithFormat:@"%.0lf",(CGRectGetHeight(myFrame)-Y-MARGIN)/2];
label.textColor = [UIColor purpleColor];
label.textAlignment = NSTextAlignmentCenter;
label.font = [UIFont systemFontOfSize:10];
[self.subviews[0] addSubview:label];
}
}
-(void)drawPieChartViewWithX_Value_Names:(NSMutableArray *)x_names TargetValues:(NSMutableArray *)targetValues{
CGPoint point = CGPointMake(self.frame.size.width/2, self.frame.size.height/2);
CGFloat startAngle = 0;
CGFloat endAngle;
CGFloat radius = 100;
// 计算总数
__block CGFloat allValues = 0;
[targetValues enumerateObjectsUsingBlock:^(NSNumber *targetNumber, NSUInteger idx, BOOL * _Nonnull stop) {
allValues +=[targetNumber floatValue];
}];
// 画图
for (int i = 0; i<targetValues.count; i++) {
CGFloat targetValue = [targetValues[i] floatValue];
endAngle = startAngle + targetValue/allValues*2*M_PI;
// bezierPath行程闭合的扇形路径
UIBezierPath *bezierPath = [UIBezierPath bezierPathWithArcCenter:point
radius:radius startAngle:startAngle endAngle:endAngle
clockwise:YES];
[bezierPath addLineToPoint:point];
[bezierPath closePath];
// 添加文字
CGFloat X = point.x + 120*cos(startAngle+(endAngle-startAngle)/2) - 10;
CGFloat Y = point.y + 110*sin(startAngle+(endAngle-startAngle)/2) - 10;
UILabel *label = [[UILabel alloc]initWithFrame:CGRectMake(X, Y, 30, 20)];
label.text = x_names[i];
label.font = [UIFont systemFontOfSize:11];
label.textColor = XYQColor(13, 195, 176);
[self.subviews[0] addSubview:label];
// 熏染
CAShapeLayer *shapeLayer = [CAShapeLayer layer];
shapeLayer.lineWidth = 1;
shapeLayer.fillColor = XYQRandomColor.CGColor;
shapeLayer.path = bezierPath.CGPath;
[self.layer addSublayer:shapeLayer];
startAngle = endAngle;
}
}
@end
