iOS 画一条虚线

作者: 烟影很美 | 来源:发表于2016-02-17 10:47 被阅读661次

CAShapeLayer *shapeLayer = [CAShapeLayer layer];

shapeLayer.position = CGPointMake(1, 2);

shapeLayer.fillColor = nil;

// 设置虚线颜色

shapeLayer.strokeColor = HEXCOLOR(0xcccccc).CGColor;

// 3.0f设置虚线的宽度

shapeLayer.lineWidth = 2.0f;

shapeLayer.lineJoin = kCALineJoinRound;

// 2=线的宽度 3=每条线的间距

shapeLayer.lineDashPattern = @[@2, @3];

CGMutablePathRef path = CGPathCreateMutable();

CGPathMoveToPoint(path, NULL, 0, 0);

CGPathAddLineToPoint(path, NULL, _allview.width,0);

shapeLayer.path = path;

CGPathRelease(path);

[_allview.layer addSublayer:shapeLayer];

参考:http://www.jianshu.com/p/265b9f6fb5f2

http://www.cocoachina.com/ios/20150417/11610.html

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网友评论

  • 超_iOS:为什么我画的线会跑出这两句话的限制,终点越界啊
    CGPathMoveToPoint(path, NULL, 0, 0);

    CGPathAddLineToPoint(path, NULL, _allview.width,0);
    超_iOS:@小菜超 怀疑是这个view.的frame有关,不解
    烟影很美:@小菜超 _allview.width表示一个view的宽, 所以这条线的位置就是 (0,0)-(view的宽,0), 怎么会超出来呢, 我这里很正常
    超_iOS:@小菜超 求解惑,急

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