Make text underlined in xcode - uitextfield

Question

Hey I'm making an app that requires a certain part of a text view's text to be underlined. is there a simple way to do this like for making it bold and italics or must i make and import a custom font? thanks for the help in advance!

Answer 1

This is what i did. It works like butter.
1) Add CoreText.framework to your Frameworks.
2) import <CoreText/CoreText.h> in the class where you need underlined label.
3) Write the following code.
NSMutableAttributedString *attString = [[NSMutableAttributedString alloc] initWithString:#"My Messages"];
[attString addAttribute:(NSString*)kCTUnderlineStyleAttributeName
value:[NSNumber numberWithInt:kCTUnderlineStyleSingle]
range:(NSRange){0,[attString length]}];
self.myMsgLBL.attributedText = attString;
self.myMsgLBL.textColor = [UIColor whiteColor];

Answer 2

#import <UIKit/UIKit.h>
#interface TextFieldWithUnderLine : UITextField
#end
#import "TextFieldWithUnderLine.h"
#implementation TextFieldWithUnderLine
- (id)initWithFrame:(CGRect)frame
{
self = [super initWithFrame:frame];
if (self) {
// Initialization code
}
return self;
}
- (void)drawRect:(CGRect)rect {
//Get the current drawing context
CGContextRef context = UIGraphicsGetCurrentContext();
//Set the line color and width
CGContextSetStrokeColorWithColor(context, [UIColor blackColor].CGColor);
CGContextSetLineWidth(context, 0.5f);
//Start a new Path
CGContextBeginPath(context);
// offset lines up - we are adding offset to font.leading so that line is drawn right below the characters and still characters are visible.
CGContextMoveToPoint(context, self.bounds.origin.x, self.font.leading + 4.0f);
CGContextAddLineToPoint(context, self.bounds.size.width, self.font.leading + 4.0f);
//Close our Path and Stroke (draw) it
CGContextClosePath(context);
CGContextStrokePath(context);
}
#end

Answer 3

Since iOS 6.0 UILabel, UITextField and UITextView support displaying attributed strings using the attributedText property.
Usage:
NSMutableAttributedString *aStr = [[NSMutableAttributedString alloc] initWithString:#"text"];
[aStr addAttribute:NSUnderlineStyleAttributeName value:NSUnderlineStyleSingle range:NSMakeRange(0,2)];
label.attributedText = aStr;