UIBezierPath画图基础实例

1、画三角形

---

效果图

实现：FBDrawView在继承的View类中的- (void)drawRect:(CGRect)rect方法中调用

例如：

#import"FBDrawView.h"

@implementationFBDrawView

/*

// Only override drawRect: if you perform custom drawing.

// An empty implementation adversely affects performance during animation.

*/

- (void)drawRect:(CGRect)rect {

// Drawing code

[selfdrawTrianglePath];

}

代码函数 ：

#pragma画三角形

-(void)drawTrianglePath{

UIBezierPath*path=[UIBezierPathbezierPath];

[pathmoveToPoint:CGPointMake(20,20)];

[pathaddLineToPoint:CGPointMake(self.frame.size.width-40,20)];

[pathaddLineToPoint:CGPointMake(self.frame.size.width/2,self.frame.size.height)];

[pathclosePath];//闭合

path.lineWidth=1.5;

//设置填充颜色

UIColor*fillcolor=[UIColorredColor];

[fillcolorset];

[pathfill];

//设置画笔颜色

UIColor*strokeColo=[UIColorblueColor];

[strokeColoset];

[pathstroke];

}

虚线效果图

   

函数代码：

#pragma画三角形

-(void)drawTrianglePath{

UIBezierPath*path=[UIBezierPathbezierPath];

[pathmoveToPoint:CGPointMake(20,20)];

[pathaddLineToPoint:CGPointMake(self.frame.size.width-40,20)];

[pathaddLineToPoint:CGPointMake(self.frame.size.width/2,self.frame.size.height)];

[pathclosePath];//闭合

path.lineWidth=8;

//边框是虚线

CGFloatdash[]={20,10};

//dash是数据值count是数据个数phase是从第几个值开始

[pathsetLineDash:dashcount:2phase:0];

//

//设置填充颜色

UIColor*fillcolor=[UIColorredColor];

[fillcolorset];

[pathfill];

//设置画笔颜色

UIColor*strokeColo=[UIColorblueColor];

[strokeColoset];

[pathstroke];

}