Change the height of UILabel dynamically based on content
ios7.1, objective-c, uilabel, xcode5.1
Solution
Using below you can get the height of the label
- text - text of the label
- font - font used in label
width - width of the label
-(float) getHeightForText:(NSString*) text withFont:(UIFont*) font andWidth:(float) width{
CGSize constraint = CGSizeMake(width , 20000.0f);
CGSize title_size;
float totalHeight;
SEL selector = @selector(boundingRectWithSize:options:attributes:context:);
if ([text respondsToSelector:selector]) {
title_size = [text boundingRectWithSize:constraint
options:NSStringDrawingUsesLineFragmentOrigin
attributes:@{ NSFontAttributeName : font }
context:nil].size;
totalHeight = ceil(title_size.height);
} else {
title_size = [text sizeWithFont:font
constrainedToSize:constraint
lineBreakMode:NSLineBreakByWordWrapping];
totalHeight = title_size.height ;
}
CGFloat height = MAX(totalHeight, 40.0f);
return height;
}
and create a frame using the height
CGRect frame = questionTitleLbl.frame;
float height = [self getHeightForText:questionTitleLbl.text
withFont:questionTitleLbl.font
andWidth:questionTitleLbl.frame.size.width];
float gap = 2;
cell.questionTitleLbl.frame = CGRectMake(frame.origin.x,
frame.origin.y,
frame.size.width,
height);
Problem
I have a `UILabel` as subview of `UIButton` and I am passing the value from another view and populating in `UILabel`. Now, I want that `UILabel` must change its height based on the content.If text is "Hello" it must be in 1 line but if text is " my text is too long to fit in the label", it must change its size. I have used ``` [self.addressLabel sizeToFit]; ``` But for this i need to leave empty space below UILabel. Simply what I want is that when text strength increases,size of UILabel and UIView must expand.