iPhone-UILabel同時包含具有多種字體的文本

Question

我正在尋找一種使用UILabel（或類似的東西）來顯示類似這樣的方法：

湯姆：一些消息。

就像在Facebook應用程序中如何顯示“您的想法？” 消息。 有人對如何解決這個問題有任何建議嗎？

Answer 1

有一種方法可以使用NSMutableAttributedString在Label上設置不同/多種字體和其他屬性。 福爾是我的代碼：

 UIFont *arialFont = [UIFont fontWithName:@"arial" size:18.0];
 NSDictionary *arialDict = [NSDictionary dictionaryWithObject: arialFont forKey:NSFontAttributeName];    
 NSMutableAttributedString *aAttrString = [[NSMutableAttributedString alloc] initWithString:title attributes: arialDict];

 UIFont *VerdanaFont = [UIFont fontWithName:@"verdana" size:12.0];
 NSDictionary *verdanaDict = [NSDictionary dictionaryWithObject:VerdanaFont forKey:NSFontAttributeName];
 NSMutableAttributedString *vAttrString = [[NSMutableAttributedString alloc]initWithString: newsDate attributes:verdanaDict];    
 [vAttrString addAttribute:NSForegroundColorAttributeName value:[UIColor blackColor] range:(NSMakeRange(0, 15))];

 [aAttrString appendAttributedString:vAttrString];


 lblText.attributedText = aAttrString;

請注意，lblText是UILabel，是文件所有者的出口。 一個人可以繼續添加他想要的盡可能多的NSMutableAttributedString。

還要注意，我已經在項目中添加了verdana和arial字體，並為其添加了一個plist。

Answer 2

對不起，我遲到了。 下面的代碼非常適合我。 我發布此信息是為了對某人有所幫助。

    UIFont *font1 = [UIFont fontWithName:kMyriadProSemiBold size:15];
NSDictionary *arialDict = [NSDictionary dictionaryWithObject: font1 forKey:NSFontAttributeName];
NSMutableAttributedString *aAttrString1 = [[NSMutableAttributedString alloc] initWithString:@"My" attributes: arialDict];

UIFont *font2 = [UIFont fontWithName:kMyriadProRegular size:15];
NSDictionary *arialDict2 = [NSDictionary dictionaryWithObject: font2 forKey:NSFontAttributeName];
NSMutableAttributedString *aAttrString2 = [[NSMutableAttributedString alloc] initWithString:@"Profile" attributes: arialDict2];


[aAttrString1 appendAttributedString:aAttrString2];
myProfileLabel.attributedText = aAttrString1;

請注意，我是半粗體的，個人資料是常規的。 我使用了MyRiad字體。 謝謝

Answer 3

根據需要使用兩個UILabel IBOutlet，每個都具有不同的格式（字體/顏色/等）。根據第一個文本的結尾位置，將第二個移到第一個之上。 您可以通過sizeWithFont：forWidth：lineBreakMode獲得該信息：

另外，您可以子類化UILabel，然后在drawRect中自己繪制文本。 如果采用這種方式，只需添加一個實例變量即可告訴您以一種格式繪制多少字符串，而以另一種格式繪制其余字符串。

更新：請參閱下面的@Akshay回復。 從iOS6開始，UILabel可以包含NSMutableAttributedString。 當我寫這篇文章時，這是不可用的。

Answer 4

更新：如果您使用的是iOS 6以上版本，請使用UILabel.attributedText-否則...

我創建了這個基本的UIView子類以支持類似的功能。

事物的名單並不支持比它做什么更長的時間，但基本上它允許你管理UILabels的單線 ，只要你想格式化每個。 例如，這使我可以在行中間插入具有不同顏色的文本，並避免使用重量級的UIWebView。

我通過將UIView對象放置在界面中（使用Interface Builder）並將IB中的對象類型設置為MultipartLabel來創建這些對象。 然后在代碼中，根據需要調用updateNumberOfLabels和各種setText選擇器。

//  MultipartLabel.m
//  MultiLabelLabel
//
//  Created by Jason Miller on 10/7/09.
//  Copyright 2009 Jason Miller. All rights reserved.
//

#import "MultipartLabel.h"

@interface MultipartLabel (Private)
- (void)updateLayout;
@end

@implementation MultipartLabel

@synthesize containerView;
@synthesize labels;

-(void)updateNumberOfLabels:(int)numLabels;
{
 [containerView removeFromSuperview];
 self.containerView = nil;

 self.containerView = [[[UIView alloc] initWithFrame:CGRectMake(0, 0, self.frame.size.width, self.frame.size.height)] autorelease];
 [self addSubview:self.containerView];
 self.labels = [NSMutableArray array];

 while (numLabels-- > 0) {
  UILabel * label = [[UILabel alloc] initWithFrame:CGRectZero];
  [self.containerView addSubview:label];
  [self.labels addObject:label];
  [label release];
 }

 [self updateLayout];
}

-(void)setText:(NSString *)text forLabel:(int)labelNum;
{
 if( [self.labels count] > labelNum && labelNum >= 0 )
 {
  UILabel * thisLabel = [self.labels objectAtIndex:labelNum];
  thisLabel.text = text;
 }

 [self updateLayout];
}

-(void)setText:(NSString *)text andFont:(UIFont*)font forLabel:(int)labelNum;
{
 if( [self.labels count] > labelNum && labelNum >= 0 )
 {
  UILabel * thisLabel = [self.labels objectAtIndex:labelNum];
  thisLabel.text = text;
  thisLabel.font = font;
 }

 [self updateLayout];
}

-(void)setText:(NSString *)text andColor:(UIColor*)color forLabel:(int)labelNum;
{
 if( [self.labels count] > labelNum && labelNum >= 0 )
 {
  UILabel * thisLabel = [self.labels objectAtIndex:labelNum];
  thisLabel.text = text;
  thisLabel.textColor = color;
 }

 [self updateLayout];
}

-(void)setText:(NSString *)text andFont:(UIFont*)font andColor:(UIColor*)color forLabel:(int)labelNum;
{
 if( [self.labels count] > labelNum && labelNum >= 0 )
 {
  UILabel * thisLabel = [self.labels objectAtIndex:labelNum];
  thisLabel.text = text;
  thisLabel.font = font;
  thisLabel.textColor = color;
 }

 [self updateLayout];
}

- (void)updateLayout {

 int thisX = 0;

 // TODO when it is time to support different sized fonts, need to adjust each y value to line up baselines

 for (UILabel * thisLabel in self.labels) {
  CGSize size = [thisLabel.text sizeWithFont:thisLabel.font
         constrainedToSize:CGSizeMake(9999, 9999)
          lineBreakMode:thisLabel.lineBreakMode];
  CGRect thisFrame = CGRectMake( thisX, 0, size.width, size.height );
  thisLabel.frame = thisFrame;

  thisX += size.width;
 }
}


- (void)dealloc {
 [labels release];
 labels = nil;

 [containerView release];
 containerView = nil;

    [super dealloc];
}


@end

Answer 5

在Swift 2.0中，可以按照以下步驟進行操作

//Defining fonts of size and type
let firstfont:UIFont = UIFont(name: "Helvetica Neue", size: 17)!
let boldFont:UIFont = UIFont(name: "HelveticaNeue-Bold", size: 17)!
let thirdFont:UIFont = UIFont(name: "HelveticaNeue-ThinItalic", size: 17)!

//Making dictionaries of fonts that will be passed as an attribute        

let firstDict:NSDictionary = NSDictionary(object: firstfont, forKey:  
NSFontAttributeName)
let boldDict:NSDictionary = NSDictionary(object: boldFont, forKey: 
NSFontAttributeName)
let thirdDict:NSDictionary = NSDictionary(object: thirdFont, forKey: 
NSFontAttributeName)

let firstText = "My name is "
let attributedString = NSMutableAttributedString(string: firstText, 
attributes: firstDict as? [String : AnyObject])

let boldText  = "Rajan"
let boldString = NSMutableAttributedString(string:boldText, 
attributes:boldDict as? [String : AnyObject])

let finalText = " iOS"
let finalAttributedString =  NSMutableAttributedString(string: 
finalText, attributes: thirdDict as? [String : AnyObject])

attributedString.appendAttributedString(boldString)
attributedString.appendAttributedString(finalAttributedString)
myLabel.attributedText = attributedString

編輯
斯威夫特3.0

let firstfont:UIFont = UIFont(name: "Helvetica Neue", size: 17)!
let boldFont:UIFont = UIFont(name: "HelveticaNeue-Bold", size: 17)!
let thirdFont:UIFont = UIFont(name: "HelveticaNeue-ThinItalic", size: 17)!

//Making dictionaries of fonts that will be passed as an attribute

let firstDict:NSDictionary = NSDictionary(object: firstfont, forKey:
        NSFontAttributeName as NSCopying)
let boldDict:NSDictionary = NSDictionary(object: boldFont, forKey:
        NSFontAttributeName as NSCopying)
let thirdDict:NSDictionary = NSDictionary(object: thirdFont, forKey:
        NSFontAttributeName as NSCopying)

let firstText = "My name is "
let attributedString = NSMutableAttributedString(string: firstText,
                                                     attributes: firstDict as? [String : AnyObject])

let boldText  = "Rajan"
let boldString = NSMutableAttributedString(string:boldText,
                                               attributes:boldDict as? [String : AnyObject])

let finalText = " iOS"
let finalAttributedString =  NSMutableAttributedString(string:
        finalText, attributes: thirdDict as? [String : AnyObject])

attributedString.append(boldString)
attributedString.append(finalAttributedString)
myLabel.attributedText = attributedString

編輯
迅捷4.0

let firstfont:UIFont = UIFont(name: "Helvetica Neue", size: 17)!
let boldFont:UIFont = UIFont(name: "HelveticaNeue-Bold", size: 17)!
let thirdFont:UIFont = UIFont(name: "HelveticaNeue-ThinItalic", size: 17)!

//Making dictionaries of fonts that will be passed as an attribute

let firstDict:NSDictionary = NSDictionary(object: firstfont, forKey:
    NSAttributedString.Key.font as NSCopying)
let boldDict:NSDictionary = NSDictionary(object: boldFont, forKey:
    NSAttributedString.Key.font as NSCopying)
let thirdDict:NSDictionary = NSDictionary(object: thirdFont, forKey:
    NSAttributedString.Key.font as NSCopying)

let firstText = "My name is "
let attributedString = NSMutableAttributedString(string: firstText,
                                                         attributes: firstDict as? [NSAttributedString.Key : Any])

let boldText  = "Rajan"
let boldString = NSMutableAttributedString(string:boldText,
                                                   attributes:boldDict as? [NSAttributedString.Key : Any])

let finalText = " iOS"
let finalAttributedString =  NSMutableAttributedString(string:
    finalText, attributes: thirdDict as? [NSAttributedString.Key : Any])

attributedString.append(boldString)
attributedString.append(finalAttributedString)
myLabel.attributedText = attributedString

這看起來像

Answer 6

我更新了@Jason建議的MultipartLabel，添加了contentMode（文本對齊）支持。

MultipartLabel.h

#import <Foundation/Foundation.h>

@interface MultipartLabel : UIView {
}

@property (nonatomic,retain) UIView *containerView;
@property (nonatomic,retain) NSMutableArray *labels;
@property (nonatomic) UIViewContentMode contentMode;

- (void)updateNumberOfLabels:(int)numLabels;
- (void)setText:(NSString *)text forLabel:(int)labelNum;
- (void)setText:(NSString *)text andFont:(UIFont*)font forLabel:(int)labelNum;
- (void)setText:(NSString *)text andColor:(UIColor*)color forLabel:(int)labelNum;
- (void)setText:(NSString *)text andFont:(UIFont*)font andColor:(UIColor*)color forLabel:(int)labelNum;

@end

MultipartLabel.m

//  MultipartLabel.m
//  MultipartLabel
//
//  Created by Jason Miller on 10/7/09.
//  Updated by Laurynas Butkus, 2011
//  Copyright 2009 Jason Miller. All rights reserved.
//

#import "MultipartLabel.h"

@interface MultipartLabel (Private)
- (void)updateLayout;
@end

@implementation MultipartLabel

@synthesize containerView;
@synthesize labels;
@synthesize contentMode;

-(void)updateNumberOfLabels:(int)numLabels
{
    [containerView removeFromSuperview];
    self.containerView = nil;

    self.containerView = [[[UIView alloc] initWithFrame:CGRectMake(0, 0, self.frame.size.width, self.frame.size.height)] autorelease];
    [self addSubview:self.containerView];
    self.labels = [NSMutableArray array];

    while (numLabels-- > 0) {
        UILabel * label = [[UILabel alloc] initWithFrame:CGRectZero];
        label.backgroundColor = self.backgroundColor;
        [self.containerView addSubview:label];
        [self.labels addObject:label];
        [label release];
    }

    [self updateLayout];
}

-(void)setText:(NSString *)text forLabel:(int)labelNum
{
    if( [self.labels count] > labelNum && labelNum >= 0 )
    {
        UILabel * thisLabel = [self.labels objectAtIndex:labelNum];
        thisLabel.text = text;
    }

    [self updateLayout];
}

-(void)setText:(NSString *)text andFont:(UIFont*)font forLabel:(int)labelNum
{
    if( [self.labels count] > labelNum && labelNum >= 0 )
    {
        UILabel * thisLabel = [self.labels objectAtIndex:labelNum];
        thisLabel.text = text;
        thisLabel.font = font;
    }

    [self updateLayout];
}

-(void)setText:(NSString *)text andColor:(UIColor*)color forLabel:(int)labelNum
{
    if( [self.labels count] > labelNum && labelNum >= 0 )
    {
        UILabel * thisLabel = [self.labels objectAtIndex:labelNum];
        thisLabel.text = text;
        thisLabel.textColor = color;
    }

    [self updateLayout];
}

- (void)setText:(NSString *)text andFont:(UIFont*)font andColor:(UIColor*)color forLabel:(int)labelNum
{
    if( [self.labels count] > labelNum && labelNum >= 0 )
    {
        UILabel * thisLabel = [self.labels objectAtIndex:labelNum];
        thisLabel.text = text;
        thisLabel.font = font;
        thisLabel.textColor = color;
    }

    [self updateLayout];
}

- (void)updateLayout {

    int thisX;
    int thisY;
    int totalWidth = 0;
    int offsetX = 0;

    int sizes[[self.labels count]][2];
    int i = 0;

    for (UILabel * thisLabel in self.labels) {
        CGSize size = [thisLabel.text sizeWithFont:thisLabel.font constrainedToSize:CGSizeMake(9999, 9999) 
                                     lineBreakMode:thisLabel.lineBreakMode];

        sizes[i][0] = size.width;
        sizes[i][1] = size.height;
        totalWidth+= size.width;

        i++;
    }

    i = 0;

    for (UILabel * thisLabel in self.labels) {
        // X
        switch (self.contentMode) {
            case UIViewContentModeRight:
            case UIViewContentModeBottomRight:
            case UIViewContentModeTopRight:
                thisX = self.frame.size.width - totalWidth + offsetX;
                break;

            case UIViewContentModeCenter:
                thisX = (self.frame.size.width - totalWidth) / 2 + offsetX;
                break;

            default:
                thisX = offsetX;
                break;
        }

        // Y
        switch (self.contentMode) {
            case UIViewContentModeBottom:
            case UIViewContentModeBottomLeft:
            case UIViewContentModeBottomRight:
                thisY = self.frame.size.height - sizes[i][1];
                break;

            case UIViewContentModeCenter:
                thisY = (self.frame.size.height - sizes[i][1]) / 2;
                break;

            default:
                thisY = 0;
                break;
        }

        thisLabel.frame = CGRectMake( thisX, thisY, sizes[i][0], sizes[i][1] );

        offsetX += sizes[i][0];

        i++;
    }
}

- (void)dealloc {
    [labels release];
    labels = nil;

    [containerView release];
    containerView = nil;

    [super dealloc];
}

@end

Answer 7

使用CoreText API，它將更快。

這里有幾個例子

基本上，您將要做的事情是：1：創建UIView子類2：在drawRect：方法中添加文本繪制邏輯。

文本繪制邏輯：-您將需要知道“名稱”的范圍，因此，如果Tom ：Some message。 是您的字符串，則必須為范圍（0，3）應用不同的字體。

您可以使用CoreText自定義所有內容：）

Answer 8

嗨OHAttributelabel是個好方法。您可以通過以下鏈接引用示例代碼https://github.com/AliSoftware/OHAttributedLabel從中導入OHAttribute框架，您可以如下設置標簽

 OHAttributedLabel *lblText;
 lblText = [[OHAttributedLabel alloc] initWithFrame:CGRectMake(10,10,100,19)];
 lblText.backgroundColor = [UIColor clearColor];
    lblText.textAlignment = UITextAlignmentCenter;
    lblText.font = [UIFont fontWithName:@"BoschSans-Regular" size:10];
    NSString *strText=@"Tom: Some message.";
    NSMutableAttributedString* attrStr = [NSMutableAttributedString attributedStringWithString: strText];
    NSRange rangeOfSubstring = [strVersion rangeOfString:@“Tom:];
    if (rangeOfSubstring.location != NSNotFound) {
        [attrStr setFontName:@"BoschSans-BOLD" size:10.0 range:rangeOfSubstring];
    }
    else {
    }

    lblText.attributedText = attrStr;
    [self.View addSubview: lblText];

Answer 9

一種選擇是使用UIWebView代替UILabel。

示例： http ： //iphoneincubator.com/blog/windows-views/display-rich-text-using-a-uiwebview

Answer 10

建立自己的HTML代碼很容易=>

UIWebView *titleAd = [UIWebView alloc] init...;

NSString *cssString = [NSString stringWithFormat:@".title {font-family: HelveticaNeue; text-decoration: bold; font-size: %fpt; color: #4083a9;} .author {font-family: HelveticaNeue; text-decoration: bold; font-size: %fpt; color: #3e4545;}",__FONTSIZE_29__, __FONTSIZE_21__];

NSString *htmlString = [NSString stringWithFormat:@"<html> <head>     <style type=\"text/css\"> %@ </style> </head> <body>     <p>     <span class=\"title\"> %@ </span>     <span class=\"author\"> proposé par %@ </span>     </p> </body> </html>", cssString, [table title], [table nameOwner]];  

[titleAd loadHTMLString:htmlString baseURL:nil];