Label Underline underlined

1. New HZSUnderLineLabel.h class integrated from Uilabel

2..h file

//

HZSUnderLineLabel.h

Inface

//

Created by Huangzengsong on 15/5/11.

Copyright (c) 2015 Huangzs. All rights reserved.

//

#import <UIKit/UIKit.h>

typedef enum{

linetypenone,//No draw line

Linetypeup,//Top draw Line

linetypemiddle,//Middle Draw Line

linetypedown,//Bottom Line

} Linetype;

@interface Hzsunderlinelabel:uilabel

@property (Assign, nonatomic) Linetype Linetype;

@property (Strong, Nonatomic) Uicolor * LINECOLOR;

@end

3..M file

//

hzsunderlinelabel.m

Inface

//

Created by Huangzengsong on 15/5/11.

Copyright (c) 2015 Huangzs. All rights reserved.

//

#import "HZSUnderLineLabel.h"

@implementation Hzsunderlinelabel

-(void) dealloc{

Self.linecolor = nil;

}

-(ID) initWithFrame: (CGRect) frame

{

self = [super Initwithframe:frame];

if (self) {

Initialization code

Self.linecolor=[uicolor Graycolor];

Self.linetype = Linetypedown;

}

return self;

}

/*

Only override Drawrect:if perform custom drawing.

An empty implementation adversely affects performance during animation.

-(void) DrawRect: (cgrect) rect

{

Drawing Code

}

*/

-(void) Drawtextinrect: (CGRect) rect{

[Super Drawtextinrect:rect];

Cgsize textSize = [[self text] sizewithattributes:[nsdictionary dictionarywithobjectsandkeys:[self font], Nsfontattributename, Nil]];

CGFloat strikewidth = textsize.width;

CGRect Linerect;

CGFloat origin_x;

CGFloat origin_y = 0.0;

if ([self textalignment] = = nstextalignmentright) {

origin_x = Rect.size.width-strikewidth;

} else if ([self textalignment] = = Nstextalignmentcenter) {

origin_x = (rect.size.width-strikewidth)/2;

} else {

origin_x = 0;

}

if (Self.linetype = = Linetypeup) {

origin_y = 2;

}

if (Self.linetype = = Linetypemiddle) {

origin_y = RECT.SIZE.HEIGHT/2;

}

if (Self.linetype = = Linetypedown) {//Down draw line

origin_y = rect.size.height-2;

}

Linerect = CGRectMake (origin_x, origin_y, Strikewidth, 1);

if (self.linetype! = Linetypenone) {

Cgcontextref context = Uigraphicsgetcurrentcontext ();

CGFloat R, G, B, A;

NSLog (@ "self.linecolor%@", Self.linecolor);

Cgcolorref color = Self.lineColor.CGColor;

Nsuinteger numcomponents = cgcolorgetnumberofcomponents (color);

if (numcomponents = = 4)

{

Const CGFloat *components = cgcolorgetcomponents (color);

R = Components[0];

G = components[1];

B = components[2];

A = components[3];

Cgcontextsetrgbfillcolor (context, R, G, B, 1.0);

}

Cgcontextfillrect (context, linerect);

}

}

/*

Only override Drawrect:if perform custom drawing.

An empty implementation adversely affects performance during animation.

-(void) DrawRect: (cgrect) Rect {

Drawing Code

}

*/

@end

4. When to adjust

Self. Titlelabel.linetype=linetypedown;

Self. Titlelabel.linecolor=[uicolor Blackcolor];

Label Underline underlined