Draw grid in a View iOS || iOS drawing inside gridView

Solution:

Draw a gridView and using the gridView u can easily measure the drawings inside a view.So below code is used to draw a grid in a view ....

#pragma mark - Draw grid

-(void)drawGridRect:(CGRect)rect {

    CGFloat viewWidth = self.frame.size.width;

    CGFloat viewHeight = self.frame.size.height;

    CGFloat gridValue = 10.0;

    

    CGFloat x1 = 0.0;

    CGFloat x2 = viewWidth;

    

    CGFloat y1 = 0.0;

    CGFloat y2 = viewHeight;

    

    CGFloat cellLength = gridValue;

    CGFloat lineWidth = 2.0;

     UIBezierPath *path = [UIBezierPath bezierPath];

    // draw horizontal lines

    CGFloat i = 0.0;

    do {

        [path moveToPoint:CGPointMake(x1, cellLength + i)];

        [path addLineToPoint:CGPointMake(x2, cellLength + i)];

        CAShapeLayer *shapeLayer = [CAShapeLayer layer];

        shapeLayer.path = [path CGPath];

        shapeLayer.strokeColor = [[UIColor lightGrayColor] CGColor];

        shapeLayer.lineWidth = 1.0;

        shapeLayer.fillColor = [[UIColor clearColor] CGColor];

        [self.layer addSublayer:shapeLayer];

        i = i + cellLength;

    } while (i < rect.size.height - cellLength);

    

    // draw vertical lines

    CGFloat j = 0.0;

    do {

        [path moveToPoint:CGPointMake(cellLength+j, y1)];

        [path addLineToPoint:CGPointMake(cellLength+j, y2)];

        CAShapeLayer *shapeLayer = [CAShapeLayer layer];

        shapeLayer.path = [path CGPath];

        shapeLayer.strokeColor = [[UIColor lightGrayColor] CGColor];

        shapeLayer.lineWidth = 1.0;

        shapeLayer.fillColor = [[UIColor clearColor] CGColor];

        [self.layer addSublayer:shapeLayer];

        j = j + cellLength;

       } while (j < rect.size.width - cellLength);

}