八尺龍須方錦褥,已涼天氣未寒時!<頓甲>

• 下面是和好友@by小杰整理的一些內(nèi)容

typedef NS_ENUM(NSInteger, NSLineBreakMode) {
   NSLineBreakByWordWrapping = 0, 
   NSLineBreakByCharWrapping,
   NSLineBreakByClipping, //減掉后面顯示不了的部分
   NSLineBreakByTruncatingHead,  //頭部內(nèi)容以......方式省略
   NSLineBreakByTruncatingTail,    //尾部內(nèi)容以......方式省略
   NSLineBreakByTruncatingMiddle  //中間內(nèi)容以......方式省略
} NS_ENUM_AVAILABLE_IOS(6_0);```

typedef NS_ENUM(NSInteger, NSWritingDirection) {
NSWritingDirectionNatural = -1, // Determines direction using the Unicode Bidi Algorithm rules P2 and P3
NSWritingDirectionLeftToRight = 0, // Left to right writing direction 左到右的書寫方向
NSWritingDirectionRightToLeft = 1 // Right to left writing direction 右到左的書寫方向
} NS_ENUM_AVAILABLE_IOS(6_0);```

#段落風格
// NSParagraphStyleAttributeName 段落的風格（設(shè)置首行倚评，行間距，對齊方式什么的）看自己需要什么屬性秋忙，寫什么 
NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle alloc] init]; 
paragraphStyle.lineSpacing = 10;// 字體的行間距 
paragraphStyle.firstLineHeadIndent = 20.0f;//首行縮進 
paragraphStyle.alignment = NSTextAlignmentJustified;//（兩端對齊的）文本對齊方式：（左认臊，中菠净，右，兩端對齊，自然）
paragraphStyle.lineBreakMode = NSLineBreakByTruncatingTail;//結(jié)尾部分的內(nèi)容以……方式省略 ( "...wxyz" ,"abcd..." ,"ab...yz") 
paragraphStyle.headIndent = 20;//整體縮進(首行除外) 
paragraphStyle.tailIndent = 20;// 
paragraphStyle.minimumLineHeight = 10;//最低行高 
paragraphStyle.maximumLineHeight = 20;//最大行高 
paragraphStyle.paragraphSpacing = 15;//段與段之間的間距 
paragraphStyle.paragraphSpacingBefore = 22.0f;//段首行空白空間/* Distance between the bottom of the previous paragraph (or the end of its paragraphSpacing, if any) and the top of this paragraph. */ 
paragraphStyle.baseWritingDirection = NSWritingDirectionLeftToRight;//從左到右的書寫方向（一共??三種）
paragraphStyle.lineHeightMultiple = 15;/* Natural line height is multiplied by this factor (if positive) before being constrained by minimum and maximum line height. */ 
paragraphStyle.hyphenationFactor = 1;//連字屬性 在iOS歼培，唯一支持的值分別為0和1

#字體大小
/*  NSFontAttributeName 字體大小  NSParagraphStyleAttributeName 段落的風格（設(shè)置首行臭杰，行間距，對齊方式什么的）  NSKernAttributeName 字間距  */
 NSDictionary *attributes = @{        
       NSFontAttributeName:[UIFont systemFontOfSize:15],             
       NSParagraphStyleAttributeName:paragraphStyle,         
       NSKernAttributeName:@(10),                       
  }; 

#簡單應(yīng)用
textView.attributedText = [[NSAttributedString alloc] initWithString:textView.text attributes:attributes];

實現(xiàn)效果:

富文本.png

實現(xiàn)代碼

#import "ViewController.h"

@interface ViewController ()

@property (weak, nonatomic) IBOutlet UILabel *label1;

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    //創(chuàng)建富文本對象
    NSMutableAttributedString *attrrbute1 = [[NSMutableAttributedString alloc] initWithString:self.label1.text];
    
    //設(shè)置字體大小
    [attrrbute1 addAttribute:NSFontAttributeName value:[UIFont systemFontOfSize:29] range:NSMakeRange(5, 4)];

    //設(shè)置字體顏色
    [attrrbute1 addAttribute:NSForegroundColorAttributeName value:[UIColor redColor] range:NSMakeRange(10, 4)];
    
    //設(shè)置字體背景顏色
    [attrrbute1 addAttribute:NSBackgroundColorAttributeName value:[UIColor greenColor] range:NSMakeRange(15, 5)];
    
    //設(shè)置刪除線
    [attrrbute1 addAttribute:NSStrikethroughStyleAttributeName value:[NSNumber numberWithInteger:1] range:NSMakeRange(31, 10)];
    
    //設(shè)置下劃線
    [attrrbute1 addAttribute:NSUnderlineStyleAttributeName value:[NSNumber numberWithInteger:2] range:NSMakeRange(40, 10)];
    
    //一下兩者必須結(jié)合使用
    //設(shè)置空心字顏色
    [attrrbute1 addAttribute:NSStrokeColorAttributeName value:[UIColor orangeColor] range:NSMakeRange(50, 10)];
    //空心字邊框顏色
    [attrrbute1 addAttribute:NSStrokeWidthAttributeName value:[NSNumber numberWithInteger:1] range:NSMakeRange(50, 10)];

    //將富文本屬性添加到控件上
    self.label1.attributedText = attrrbute1;

    
}

@end```

![UILabel.png](http://upload-images.jianshu.io/upload_images/1803308-6c0cfaa74775cc1f.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240)
```code
----- UILabel -----
  
//1 創(chuàng)建Label
     UILabel *namelabel = [[UILabel alloc] initWithFrame:CGRectMake(100, 100, 200, 200)];
//2 設(shè)置屬性
     //設(shè)置文字
     namelabel.text = @"姓名";
     
     //設(shè)置背景顏色
     namelabel.backgroundColor = [UIColor whiteColor];
     
     //設(shè)置內(nèi)容對齊方式
     namelabel.textAlignment = NSTextAlignmentCenter;
     
     //設(shè)置內(nèi)容字體大小
     //namelabel.font = [UIFont systemFontOfSize:20];
     namelabel.font = [UIFont fontWithName:@"Helvetica-Bold" size:20];
     
     //設(shè)置文字超出, 換行顯示
     namelabel.lineBreakMode = NSLineBreakByCharWrapping;
     namelabel.numberOfLines = 0;
     
     //設(shè)置Label圓角
     namelabel.layer.borderWidth = 1;
     namelabel.layer.cornerRadius = 8;
     namelabel.layer.masksToBounds = YES;

     //設(shè)置文字效果
     //陰影效果
     namelabel.shadowColor = [UIColor colorWithRed:0.203 green:0.260 blue:0.571 alpha:0.462];
     
     //陰影位置
     namelabel.shadowOffset = CGSizeMake(5, 5);// (x, y)
     
     //設(shè)置文字角度
     namelabel.transform = CGAffineTransformMakeRotation(0.2);
     
     //添加富文本
     //1 聲明富文本
     NSMutableAttributedString *attributeStr = [[NSMutableAttributedString alloc] initWithString:@"富文本文字+ 測試換行文字文字文字文字文字文字"];
     
     //2 設(shè)置富文本內(nèi)容樣式
     //2.1 字體大小
     //參數(shù)一: 修改的屬性  參數(shù)二: 類型的具體值  參數(shù)三: 修改的區(qū)間
     [attributeStr addAttribute:NSFontAttributeName value:[UIFont systemFontOfSize:40] range:NSMakeRange(0, 3)];
     
     //2.2 設(shè)置空心字
     [attributeStr addAttribute:NSStrokeWidthAttributeName value:@2 range:NSMakeRange(0, 4)];
     
     //2.3 設(shè)置空心字顏色
     [attributeStr addAttribute:NSStrokeColorAttributeName value:[UIColor redColor] range:NSMakeRange(0, 4)];
     
     //3 為label指定富文本對象(需要放置在富文本樣式后面)
     namelabel.attributedText = attributeStr;
    

     //namelabel.backgroundColor = [UIColor colorWithRed:0.792 green:1.000 blue:0.814 alpha:1.000];

//3 添加到視圖
     [self.view addSubview:namelabel];