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本文主要給大家介紹了關(guān)于iOS如何給View添加指定位置邊框線的相關(guān)內(nèi)容,分享出來供大家參考學(xué)習(xí),下面話不多說了,來一起看看詳細(xì)的介紹吧。
略微封裝了一下,給View添加指定位置的邊框線,其中位移枚舉的使用詢問了哥們兒,總算搞定;
示例代碼
封裝一:直接封裝成了一個方法
/// 邊框類型(位移枚舉) typedef NS_ENUM(NSInteger, UIBorderSideType) { UIBorderSideTypeAll = 0, UIBorderSideTypeTop = 1 << 0, UIBorderSideTypeBottom = 1 << 1, UIBorderSideTypeLeft = 1 << 2, UIBorderSideTypeRight = 1 << 3, }; /** 設(shè)置view指定位置的邊框 @param originalView 原view @param color 邊框顏色 @param borderWidth 邊框?qū)挾? @param borderType 邊框類型 例子: UIBorderSideTypeTop|UIBorderSideTypeBottom @return view */ - (UIView *)borderForView:(UIView *)originalView color:(UIColor *)color borderWidth:(CGFloat)borderWidth borderType:(UIBorderSideType)borderType { if (borderType == UIBorderSideTypeAll) { originalView.layer.borderWidth = borderWidth; originalView.layer.borderColor = color.CGColor; return originalView; } /// 線的路徑 UIBezierPath * bezierPath = [UIBezierPath bezierPath]; /// 左側(cè) if (borderType & UIBorderSideTypeLeft) { /// 左側(cè)線路徑 [bezierPath moveToPoint:CGPointMake(0.0f, originalView.frame.size.height)]; [bezierPath addLineToPoint:CGPointMake(0.0f, 0.0f)]; } /// 右側(cè) if (borderType & UIBorderSideTypeRight) { /// 右側(cè)線路徑 [bezierPath moveToPoint:CGPointMake(originalView.frame.size.width, 0.0f)]; [bezierPath addLineToPoint:CGPointMake( originalView.frame.size.width, originalView.frame.size.height)]; } /// top if (borderType & UIBorderSideTypeTop) { /// top線路徑 [bezierPath moveToPoint:CGPointMake(0.0f, 0.0f)]; [bezierPath addLineToPoint:CGPointMake(originalView.frame.size.width, 0.0f)]; } /// bottom if (borderType & UIBorderSideTypeBottom) { /// bottom線路徑 [bezierPath moveToPoint:CGPointMake(0.0f, originalView.frame.size.height)]; [bezierPath addLineToPoint:CGPointMake( originalView.frame.size.width, originalView.frame.size.height)]; } CAShapeLayer * shapeLayer = [CAShapeLayer layer]; shapeLayer.strokeColor = color.CGColor; shapeLayer.fillColor = [UIColor clearColor].CGColor; /// 添加路徑 shapeLayer.path = bezierPath.CGPath; /// 線寬度 shapeLayer.lineWidth = borderWidth; [originalView.layer addSublayer:shapeLayer]; return originalView; }
封裝二:封裝成了類別
.h內(nèi)容
#import <UIKit/UIKit.h> typedef NS_OPTIONS(NSUInteger, UIBorderSideType) { UIBorderSideTypeAll = 0, UIBorderSideTypeTop = 1 << 0, UIBorderSideTypeBottom = 1 << 1, UIBorderSideTypeLeft = 1 << 2, UIBorderSideTypeRight = 1 << 3, }; @interface UIView (BorderLine) - (UIView *)borderForColor:(UIColor *)color borderWidth:(CGFloat)borderWidth borderType:(UIBorderSideType)borderType; @end
.m內(nèi)容
#import "UIView+BorderLine.h" @implementation UIView (BorderLine) - (UIView *)borderForColor:(UIColor *)color borderWidth:(CGFloat)borderWidth borderType:(UIBorderSideType)borderType { if (borderType == UIBorderSideTypeAll) { self.layer.borderWidth = borderWidth; self.layer.borderColor = color.CGColor; return self; } /// 左側(cè) if (borderType & UIBorderSideTypeLeft) { /// 左側(cè)線路徑 [self.layer addSublayer:[self addLineOriginPoint:CGPointMake(0.f, 0.f) toPoint:CGPointMake(0.0f, self.frame.size.height) color:color borderWidth:borderWidth]]; } /// 右側(cè) if (borderType & UIBorderSideTypeRight) { /// 右側(cè)線路徑 [self.layer addSublayer:[self addLineOriginPoint:CGPointMake(self.frame.size.width, 0.0f) toPoint:CGPointMake( self.frame.size.width, self.frame.size.height) color:color borderWidth:borderWidth]]; } /// top if (borderType & UIBorderSideTypeTop) { /// top線路徑 [self.layer addSublayer:[self addLineOriginPoint:CGPointMake(0.0f, 0.0f) toPoint:CGPointMake(self.frame.size.width, 0.0f) color:color borderWidth:borderWidth]]; } /// bottom if (borderType & UIBorderSideTypeBottom) { /// bottom線路徑 [self.layer addSublayer:[self addLineOriginPoint:CGPointMake(0.0f, self.frame.size.height) toPoint:CGPointMake( self.frame.size.width, self.frame.size.height) color:color borderWidth:borderWidth]]; } return self; } - (CAShapeLayer *)addLineOriginPoint:(CGPoint)p0 toPoint:(CGPoint)p1 color:(UIColor *)color borderWidth:(CGFloat)borderWidth { /// 線的路徑 UIBezierPath * bezierPath = [UIBezierPath bezierPath]; [bezierPath moveToPoint:p0]; [bezierPath addLineToPoint:p1]; CAShapeLayer * shapeLayer = [CAShapeLayer layer]; shapeLayer.strokeColor = color.CGColor; shapeLayer.fillColor = [UIColor clearColor].CGColor; /// 添加路徑 shapeLayer.path = bezierPath.CGPath; /// 線寬度 shapeLayer.lineWidth = borderWidth; return shapeLayer; } @end
用法:
UIView *testView = [[UIView alloc] initWithFrame:CGRectMake(80.0f, 80.0f, 200.0f, 100.0f)]; testView.backgroundColor = [UIColor lightGrayColor]; [self.view addSubview:testView]; [self borderForView:testView color:[UIColor redColor] borderWidth:1.0f borderType:UIBorderSideTypeTop | UIBorderSideTypeBottom];
效果:
不足之處,邊框線過寬的話,交界處會有留白;
ps:注意:需要先把你的view加載在父view上,[self.view addSubview:testView]; 之后再設(shè)置邊框;否則可能會不起作用的;
總結(jié)
以上就是這篇文章的全部內(nèi)容了,希望本文的內(nèi)容對大家的學(xué)習(xí)或者工作具有一定的參考學(xué)習(xí)價值,如果有疑問大家可以留言交流,謝謝大家對創(chuàng)新互聯(lián)的支持。
文章題目:iOS開發(fā)之如何給View添加指定位置的邊框線詳解
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