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| Original file line number | Diff line number | Diff line change |
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| // | ||
| // MPBarChartView.h | ||
| // MobileProject | ||
| // | ||
| // Created by wujunyang on 2017/5/19. | ||
| // Copyright © 2017年 wujunyang. All rights reserved. | ||
| // | ||
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| #import <UIKit/UIKit.h> | ||
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| @interface MPBarChartView : UIView | ||
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| @end |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,54 @@ | ||
| // | ||
| // MPBarChartView.m | ||
| // MobileProject | ||
| // | ||
| // Created by wujunyang on 2017/5/19. | ||
| // Copyright © 2017年 wujunyang. All rights reserved. | ||
| // | ||
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| #import "MPBarChartView.h" | ||
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| #define BAR_HEIGHT_COEFFICIENT 0.9 | ||
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| @implementation MPBarChartView | ||
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| - (void)drawRect:(CGRect)rect{ | ||
| NSArray *arry = @[@300,@232.233,@324.324,@34,@435,@43.0]; | ||
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| // 计算bar的宽度 | ||
| CGFloat barW = self.bounds.size.width / (arry.count * 2 - 1); | ||
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| // 找出数组中的最大数值 | ||
| CGFloat maxValue = [[arry valueForKeyPath:@"@max.floatValue"] floatValue]; | ||
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| for (NSInteger i = 0; i < arry.count; i++) { | ||
| // 计算bar的高度 | ||
| CGFloat barH = [arry[i] floatValue] * (self.bounds.size.height * BAR_HEIGHT_COEFFICIENT/ maxValue); | ||
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| // 计算bar的XY | ||
| CGFloat barX = barW * i * 2; | ||
| CGFloat barY = self.bounds.size.height - barH; | ||
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| // 绘制矩形 | ||
| UIBezierPath *path = [UIBezierPath bezierPathWithRect:CGRectMake(barX, barY, barW, barH)]; | ||
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| // 给矩形添加随机色 | ||
| [[self randomUIColor] set]; | ||
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| [path fill]; | ||
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| } | ||
| } | ||
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| - (UIColor *)randomUIColor{ | ||
| UIColor *color = [UIColor colorWithRed:(arc4random_uniform(256) / 255.0) green:(arc4random_uniform(256) / 255.0) blue:(arc4random_uniform(256) / 255.0) alpha:(arc4random_uniform(256) / 255.0)]; | ||
| return color; | ||
| } | ||
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| - (void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event{ | ||
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| [self setNeedsDisplay]; | ||
| } | ||
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| @end |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,13 @@ | ||
| // | ||
| // MPPieChartView.h | ||
| // MobileProject | ||
| // | ||
| // Created by wujunyang on 2017/5/19. | ||
| // Copyright © 2017年 wujunyang. All rights reserved. | ||
| // | ||
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| #import <UIKit/UIKit.h> | ||
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| @interface MPPieChartView : UIView | ||
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| @end |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,58 @@ | ||
| // | ||
| // MPPieChartView.m | ||
| // MobileProject | ||
| // | ||
| // Created by wujunyang on 2017/5/19. | ||
| // Copyright © 2017年 wujunyang. All rights reserved. | ||
| // | ||
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| #import "MPPieChartView.h" | ||
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| @implementation MPPieChartView | ||
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| - (void)drawRect:(CGRect)rect { | ||
| // Drawing code | ||
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| NSArray *arry = @[@300,@232.233,@324.324,@34,@4352,@43.0]; | ||
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| // 计算数组中所有数值之和 | ||
| CGFloat sumValue = [[arry valueForKeyPath:@"@sum.floatValue"] floatValue]; | ||
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| //设定圆弧的圆点、起始弧度 | ||
| CGPoint origin = CGPointMake(80, 80); | ||
| CGFloat startAngle = 0; | ||
| CGFloat endAngle = 0; | ||
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| for (NSInteger i = 0 ; i < arry.count; i++) { | ||
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| // 每个数据的弧度 | ||
| CGFloat angle = [arry[i] floatValue] * M_PI * 2 / sumValue; | ||
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| // 计算这一段弧度的结束为止 | ||
| endAngle = startAngle + angle; | ||
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| UIBezierPath *path = [UIBezierPath bezierPathWithArcCenter:origin radius:40 startAngle:startAngle endAngle:endAngle clockwise:YES]; | ||
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| // 计算下一段弧度开始的位置 | ||
| startAngle = endAngle; | ||
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| // 从弧边，绘制到原点。用于封闭路径，可以绘制扇形 | ||
| [path addLineToPoint:origin]; | ||
| // 给扇形添加随机色 | ||
| [[self randomUIColor] set]; | ||
| [path fill]; | ||
| } | ||
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| } | ||
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| - (UIColor *)randomUIColor{ | ||
| UIColor *color = [UIColor colorWithRed:(arc4random_uniform(256) / 255.0) green:(arc4random_uniform(256) / 255.0) blue:(arc4random_uniform(256) / 255.0) alpha:(arc4random_uniform(256) / 255.0)]; | ||
| return color; | ||
| } | ||
| //触屏后重新渲染 | ||
| - (void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event{ | ||
| [self setNeedsDisplay]; | ||
| } | ||
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| @end |