flashisobar's Blog

// drawing a vertical line
UIBezierPath *path = [UIBezierPath bezierPath];
[path moveToPoint:CGPointMake(82, 4)];      // Start Point1
[path addLineToPoint:CGPointMake(82, 44)];  // End Point1
[path moveToPoint:CGPointMake(222, 4)];     // Start Point2
[path addLineToPoint:CGPointMake(222, 44)]; // End Point2

CAShapeLayer *shapeLayer = [CAShapeLayer layer];
shapeLayer.path = [path CGPath];
shapeLayer.strokeColor = [[UIColor lightGrayColor] CGColor];
shapeLayer.lineWidth = 1.0;
shapeLayer.fillColor = [[UIColor clearColor] CGColor];
[self.group.layer addSublayer:shapeLayer];

CABasicAnimation *pathAnimation = [CABasicAnimation animationWithKeyPath:@"strokeEnd"];
pathAnimation.duration = 2.0;
pathAnimation.fromValue = [NSNumber numberWithFloat:0.0f];
pathAnimation.toValue = [NSNumber numberWithFloat:1.0f];
[shapeLayer addAnimation:pathAnimation forKey:@"strokeEnd"];