UIBezierPath - Rectangle with rounded corners - ios

Question

I'm using dr-Charts API to draw bar graphs in my application. I'm drawing the bar graph:
BarChart *barChartView = [[BarChart alloc] initWithFrame:CGRectMake(0, 150, WIDTH(self.view), HEIGHT(self.view) - 600)];
[barChartView setDataSource:self];
[barChartView setDelegate:self];
[barChartView setLegendViewType:LegendTypeHorizontal];
[barChartView setShowCustomMarkerView:TRUE];
[barChartView drawBarGraph];
[barChartView setDrawGridY:TRUE];
[barChartView setDrawGridX:FALSE];
[self.view addSubview:barChartView];
Actually, I want my bar chart rectangles to be rounded rect, something similar to this:
So, In BarChart.m, I started playing with API CAShapeLayer & UIBezierPath:
- (UIBezierPath *)drawBarPathWithStartPoint:(CGPoint)startPoint endPoint:(CGPoint)endPoint{
UIBezierPath *path = [UIBezierPath bezierPathWithRect:CGRectMake(startPoint.x, startPoint.y, endPoint.x - startPoint.x, endPoint.y - startPoint.y)];
//UIBezierPath *path = [UIBezierPath bezierPathWithRoundedRect:CGRectMake(startPoint.x, startPoint.y, endPoint.x - startPoint.x, endPoint.y - startPoint.y) byRoundingCorners:UIRectCornerAllCorners cornerRadii:CGSizeMake(10, 10)];
[path stroke];
return path;
}
CAShapeLayer *shapeLayer = [[CAShapeLayer alloc] init];
[shapeLayer setPath:[[self drawBarPathWithStartPoint:endPoint endPoint:startPoint] CGPath]];
[shapeLayer setStrokeColor:[barData.barColor CGColor]];
[shapeLayer setFillColor:[barData.barColor CGColor]];
[shapeLayer setFillRule:kCAFillRuleEvenOdd];
[shapeLayer setLineWidth:0.5f];
[shapeLayer setOpacity:0.7f];
[shapeLayer setShadowRadius:0.0f];
[shapeLayer setShadowColor:[[UIColor clearColor] CGColor]];
[shapeLayer setShadowOpacity:0.0f];
[shapeLayer setValue:[barData.yAxisArray objectAtIndex:i] forKey:#"data"];
After following many answers on StackOverflow, I couldn't succeed.
I tried many answers like shapeLayer.cornerRadius = 10;
UIBezierPath *path = [UIBezierPath bezierPathWithRoundedRect:CGRectMake(startPoint.x, startPoint.y, endPoint.x - startPoint.x, endPoint.y - startPoint.y) byRoundingCorners:UIRectCornerAllCorners cornerRadii:CGSizeMake(10, 10)];
Could you please help.

Answer 1

Try to draw wide line with rounded corners, for example
UIBezierPath *linePath = [UIBezierPath bezierPath];
[linePath moveToPoint:CGPointMake(topX, topY)];
[linePath addLineToPoint:CGPointMake(bottomX, bottomY)];
CAShapeLayer *line = [CAShapeLayer layer];
line.frame = some_frame;
line.lineCap = kCALineCapRound;
line.path = linePath.CGPath;
line.fillColor = nil;
line.lineWidth = 6.0;
line.cornerRadius = 3.0;
line.opacity = 1.0;
line.strokeColor = [UIColor greenColor].CGColor;
[line setMasksToBounds:YES];