其中的一个方法

/** *画虚线 @param lineView 视图 @param lineLength 单个虚线大小 @param lineSpacing 间隔 @param lineColor 虚线颜色 */ +(void)drawDashLine:(UIView *)lineView lineLength:(int)lineLength lineSpacing:(int)lineSpacing lineColor:(UIColor *)lineColor{

CGRect rect = CGRectMake(0, 0, CGRectGetWidth(lineView.frame), CGRectGetHeight(lineView.frame));CGSize radii = CGSizeMake(5, 5);//圆角UIRectCorner corners = UIRectCornerAllCorners;//create pathUIBezierPath *path = [UIBezierPath bezierPathWithRoundedRect:rect byRoundingCorners:corners cornerRadii:radii];//create shape layerCAShapeLayer *shapeLayer = [CAShapeLayer layer];shapeLayer.strokeColor = lineColor.CGColor;shapeLayer.fillColor = [UIColor clearColor].CGColor;shapeLayer.lineWidth = 0.5;//line的高度shapeLayer.lineJoin = kCALineJoinRound;shapeLayer.lineCap = kCALineCapRound;shapeLayer.path = path.CGPath;shapeLayer.lineDashPattern = @[[NSNumber numberWithInt:lineLength], [NSNumber numberWithInt:lineSpacing]];//画虚线(虚线宽、虚线间隔)//add it to our view[lineView.layer addSublayer:shapeLayer];复制代码

}