自定义划线方法

最新推荐文章于 2025-04-10 23:37:48 发布

SHZnt

最新推荐文章于 2025-04-10 23:37:48 发布

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分类专栏：划线文章标签：划线 iOS

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#import "DrawLine.h"

@implementation DrawLine

+ (void)drawCenter:(UIImageView *)imageView withBeginX:(CGFloat)Bx withBeginY:(CGFloat)By withEndX:(CGFloat)Ex withEndY:(CGFloat)Ey withLineWidth:(CGFloat)width withColorR:(CGFloat)r G:(CGFloat)g B:(CGFloat)b Alpha:(CGFloat)a

{

UIGraphicsBeginImageContext(imageView.frame.size);

[imageView.image drawInRect:CGRectMake(0, 0, imageView.frame.size.width, imageView.frame.size.height)];

CGContextSetLineCap(UIGraphicsGetCurrentContext(), kCGLineCapRound);

CGContextSetLineWidth(UIGraphicsGetCurrentContext(), width); //线宽

CGContextSetAllowsAntialiasing(UIGraphicsGetCurrentContext(), YES);

CGContextSetRGBStrokeColor(UIGraphicsGetCurrentContext(), r, g, b, a); //颜色

CGContextBeginPath(UIGraphicsGetCurrentContext());

CGContextMoveToPoint(UIGraphicsGetCurrentContext(), Bx, By); //起点坐标

CGContextAddLineToPoint(UIGraphicsGetCurrentContext(), Ex, Ey); //终点坐标

CGContextStrokePath(UIGraphicsGetCurrentContext());

imageView.image = UIGraphicsGetImageFromCurrentImageContext();

UIGraphicsEndImageContext();

}

+ (void)drawLineCenter:(UIView *)view withBeginX:(CGFloat)Bx withBeginY:(CGFloat)By withEndX:(CGFloat)Ex withEndY:(CGFloat)Ey withLineWidth:(CGFloat)width withColorR:(CGFloat)r G:(CGFloat)g B:(CGFloat)b Alpha:(CGFloat)a

{

UIImageView *imageView=[[UIImageView alloc] initWithFrame:view.frame];

imageView.frame = CGRectMake(view.frame.origin.x, view.frame.origin.y, 500, view.frame.size.height);

[view addSubview:imageView];