#define SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(v) ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] != NSOrderedAscending)

/**

* This method is used to calculate height of text given which fits in specific width having font provided

*

* @param text Text to calculate height of

* @param widthValue Width of container

* @param font Font size of text

*

* @return Height required to fit given text in container

*/

+ (CGFloat)findHeightForText:(NSString *)text havingWidth:(CGFloat)widthValue andFont:(UIFont *)font

{

CGFloat result = font.pointSize + 4;

if (text)

{

CGSize textSize = { widthValue, CGFLOAT_MAX }; //Width and height of text area

CGSize size;

if (SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(@"7.0"))

{

//iOS 7

CGRect frame = [text boundingRectWithSize:textSize

options:NSStringDrawingUsesLineFragmentOrigin

attributes:@{ NSFontAttributeName:font }

context:nil];

size = CGSizeMake(frame.size.width, frame.size.height+1);

}

else

{

//iOS 6.0

size = [text sizeWithFont:font constrainedToSize:textSize lineBreakMode:NSLineBreakByWordWrapping];

}

result = MAX(size.height, result); //At least one row

}

return result;

}