UIView*view2=[[UIViewalloc]initWithFrame:CGRectMake(120,10,80,80)];
view2.backgroundColor=[UIColorredColor];
[self.viewaddSubview:view2];
UIBezierPath*maskPath=[UIBezierPathbezierPathWithRoundedRect:view2.boundsbyRoundingCorners:UIRectCornerBottomLeft|UIRectCornerBottomRightcornerRadii:CGSizeMake(10,10)];
CAShapeLayer*maskLayer=[[CAShapeLayeralloc]init];
maskLayer.frame=view2.bounds;
maskLayer.path=maskPath.CGPath;
view2.layer.mask=maskLayer;
其中,
byRoundingCorners:UIRectCornerBottomLeft | UIRectCornerBottomRight
指定了需要成为圆角的角。该参数是UIRectCorner类型的,可选的值有:
* UIRectCornerTopLeft
* UIRectCornerTopRight
* UIRectCornerBottomLeft
* UIRectCornerBottomRight
* UIRectCornerAllCorners
从名字很容易看出来代表的意思,使用“|”来组合就好了。
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