Use this code its very easy and updated with ios8
add this method to your appconstant file
inline static CGSize getLabelHeightForFont(NSString *fontName,NSString* str, float fontSize, float lblWidth)
{
NSString *text = str;
CGFloat width = lblWidth;
UIFont *font = [UIFont fontWithName:fontName size:fontSize];
NSAttributedString *attributedText =
[[NSAttributedString alloc]
initWithString:text
attributes:@
{
NSFontAttributeName: font
}];
CGRect rect = [attributedText boundingRectWithSize:(CGSize){width, CGFLOAT_MAX}
options:NSStringDrawingUsesLineFragmentOrigin
context:nil];
return rect.size;
}
and finally use this code for dynamic create UILabel
CGFloat lbl_height = getLabelHeightForFont(@"System- System", address, 15, lbl_address.frame.size.width);
lbl_address.numberOfLines = 0;
lbl_address.textAlignment = NSTextAlignmentLeft;
[lbl_address setLineBreakMode:NSLineBreakByWordWrapping];
lbl_address.frame = CGRectMake(lbl_address.frame.origin.x, lbl_address.frame.origin.y, lbl_address.frame.size.width, lbl_height+5);