这里有很多关于使UIView的角落四舍五入的问题.不幸的是,我找不到任何关于如何制作弯角的东西.如何制作一个角度为45度角的UIView呢？
如果你能告诉我如何以一个角度切割任何单个角落,你甚至可以获得奖金(象征性)金星.
编辑：作为参考,here’s a link到我怀疑有一个与此解决方案类似的实现的问题.我只是不知道我要改变什么.
解决方法
首先,您需要一个带角度角的路径：
- (CGPathRef) makeAnglePathWithRect: (CGRect)rect withSize:(float) s {
CGPoint one = CGPointMake( rect.origin.x +s,rect.origin.y);
CGPoint two = CGPointMake( rect.origin.x + rect.size.width - s,rect.origin.y);
CGPoint three = CGPointMake( rect.origin.x + rect.size.width,rect.origin.y +s);
CGPoint four = CGPointMake( rect.origin.x + rect.size.width,rect.origin.y + rect.size.height -s);
CGPoint five = CGPointMake( rect.origin.x + rect.size.width-s,rect.origin.y + rect.size.height);
CGPoint six = CGPointMake(rect.origin.x+s,rect.origin.y + rect.size.height);
CGPoint seven = CGPointMake(rect.origin.x,rect.origin.y + rect.size.height-s);
CGPoint eight = CGPointMake(rect.origin.x,rect.origin.y + s);
CGMutablePathRef path = CGPathCreateMutable();
CGPathMoveToPoint(path,NULL,one.x,one.y);
CGPathAddLineToPoint(path,two.x,two.y);
CGPathAddLineToPoint(path,three.x,three.y);
CGPathAddLineToPoint(path,four.x,four.y);
CGPathAddLineToPoint(path,five.x,five.y);
CGPathAddLineToPoint(path,six.x,six.y);
CGPathAddLineToPoint(path,seven.x,seven.y);
CGPathAddLineToPoint(path,eight.x,eight.y);
CGPathAddLineToPoint(path,one.y);
return path;
}
然后,您需要使用路径指定掩码：
CAShapeLayer *maskLayer = [CAShapeLayer layer]; CGRect bounds = CGRectMake(0.0f,0.0f,100,100); //figure out your bounds [maskLayer setFrame:bounds]; CGPathRef p = [self makeAnglePathWithRect:bounds withSize:20.0]; maskLayer.path = p; _myview.layer.mask = maskLayer;
如果要从任何角落移除角度,请使用第1-8点来移除“s”值.您可以使用size参数更改从角落切出的三角形的大小.
