How to Create Bezier path with different different colour? - ios

Question

I have made sample demo for creating random path using UIBezier object.
I know I asked same type of question which was already asked, But I was not able to solve so.
Code
#implementation RandomShape
#synthesize randomPath,size,color;
- (void)drawRect:(CGRect)rect {
self.size = 1.0;
[self.color setStroke];
[self.randomPath stroke];
}
-(id)initWithFrame:(CGRect)frame
{
self = [super initWithFrame:frame];
if(self)
{
self.randomPath = [UIBezierPath bezierPath];
[self.randomPath stroke];
}
return self;
}
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
UITouch *touch = [touches anyObject];
[self.randomPath moveToPoint:[touch locationInView:self]];
[self.randomPath setLineWidth:size];
[self setNeedsDisplay];
}
- (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event {
UITouch *mytouch=[touches anyObject];
[self.randomPath addLineToPoint:[mytouch locationInView:self]];
[self setNeedsDisplay];
}
-(void)clearRandomShape
{
self.randomPath = nil; //Set current path nil
self.randomPath = [UIBezierPath bezierPath]; //Create new path
[self.randomPath setLineWidth:2.0];
[self setNeedsDisplay];
}
1) I have select the colour from the picker view.
Now My problem is,
-->When I select colour from the picker it change all previous line colour as it is.
(It displays last colour which I choose in all random path.)
--->My requirement is I wand different different colour's random Path.
Please help Me I am confuse.
Thank you.

Answer 1

Write this code wherever you want to create path..
//path 1
UIBezierPath *linePath = [[UIBezierPath alloc] init];
[linePath moveToPoint:CGPointMake(100, 100)];
[linePath addLineToPoint:CGPointMake(275, 100)];
CAShapeLayer *shapeLayer = [CAShapeLayer layer];
shapeLayer.strokeColor = [UIColor redColor].CGColor;
shapeLayer.fillColor = [UIColor clearColor].CGColor;
shapeLayer.lineWidth = 2;
shapeLayer.lineJoin = kCALineJoinRound;
shapeLayer.lineCap = kCALineCapRound;
shapeLayer.path = linePath.CGPath;
[self.view.layer addSublayer:shapeLayer];
//Path 2
UIBezierPath *verticalLinePath = [[UIBezierPath alloc] init];
[verticalLinePath moveToPoint:CGPointMake(100, 200)];
[verticalLinePath addLineToPoint:CGPointMake(275, 200)];
CAShapeLayer *horizontalLayer = [CAShapeLayer layer];
horizontalLayer.strokeColor = [UIColor greenColor].CGColor;
horizontalLayer.fillColor = [UIColor clearColor].CGColor;
horizontalLayer.lineWidth = 2;
horizontalLayer.lineJoin = kCALineJoinRound;
horizontalLayer.lineCap = kCALineCapRound;
horizontalLayer.path = verticalLinePath.CGPath;
[self.view.layer addSublayer:horizontalLayer];
//Path
UIBezierPath *path3 = [[UIBezierPath alloc] init];
[path3 moveToPoint:CGPointMake(100, 300)];
[path3 addLineToPoint:CGPointMake(275, 300)];
CAShapeLayer *horizontalLayer3 = [CAShapeLayer layer];
horizontalLayer3.strokeColor = [UIColor blueColor].CGColor;
horizontalLayer3.fillColor = [UIColor cyanColor].CGColor;
horizontalLayer3.lineWidth = 2;
horizontalLayer3.lineJoin = kCALineJoinRound;
horizontalLayer3.lineCap = kCALineCapRound;
horizontalLayer3.path = path3.CGPath;
[self.view.layer addSublayer:horizontalLayer3];
Output of this code is ->