1 /* 2 ** lineFrame: 虚线的 frame 3 ** length: 虚线中短线的宽度 4 ** spacing: 虚线中短线之间的间距 5 ** color: 虚线中短线的颜色 6 */ 7 + (UIView *)createDashedLineWithFrame:(CGRect)lineFrame 8 lineLength:(int)length 9 lineSpacing:(int)spacing 10 lineColor:(UIColor *)color{ 11 UIView *dashedLine = [[UIView alloc] initWithFrame:lineFrame]; 12 dashedLine.backgroundColor = [UIColor clearColor]; 13 CAShapeLayer *shapeLayer = [CAShapeLayer layer]; 14 [shapeLayer setBounds:dashedLine.bounds]; 15 [shapeLayer setPosition:CGPointMake(CGRectGetWidth(dashedLine.frame) / 2, CGRectGetHeight(dashedLine.frame))]; 16 [shapeLayer setFillColor:[UIColor clearColor].CGColor]; 17 [shapeLayer setStrokeColor:color.CGColor]; 18 [shapeLayer setLineWidth:CGRectGetHeight(dashedLine.frame)]; 19 [shapeLayer setLineJoin:kCALineJoinRound]; 20 [shapeLayer setLineDashPattern:[NSArray arrayWithObjects:[NSNumber numberWithInt:length], [NSNumber numberWithInt:spacing], nil]]; 21 CGMutablePathRef path = CGPathCreateMutable(); 22 CGPathMoveToPoint(path, NULL, 0, 0); 23 CGPathAddLineToPoint(path, NULL, CGRectGetWidth(dashedLine.frame), 0); 24 [shapeLayer setPath:path]; 25 CGPathRelease(path); 26 [dashedLine.layer addSublayer:shapeLayer]; 27 return dashedLine; 28 }