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iOS基础总结–常见文本编辑样式的简单总结(富文本)

八尺龙须方锦褥,已凉天气未寒时!<顿甲>

  • 下面是和好友@by小杰整理的一些内容
typedef NS_ENUM(NSInteger, NSLineBreakMode) {NSLineBreakByWordWrapping = 0,NSLineBreakByCharWrapping,NSLineBreakByClipping, //减掉后面显示不了的部分NSLineBreakByTruncatingHead,  //头部内容以......方式省略NSLineBreakByTruncatingTail,    //尾部内容以......方式省略NSLineBreakByTruncatingMiddle  //中间内容以......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 左到右的书写方向
NSWritingDirectionRightToLeft = 1 // Right to left writing direction 右到左的书写方向
} NS_ENUM_AVAILABLE_IOS(6_0);“`

#段落风格// NSParagraphStyleAttributeName 段落的风格(设置首行,行间距,对齐方式什么的)看自己需要什么属性,写什么NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle alloc] init];paragraphStyle.lineSpacing = 10;// 字体的行间距paragraphStyle.firstLineHeadIndent = 20.0f;//首行缩进paragraphStyle.alignment = NSTextAlignmentJustified;//(两端对齐的)文本对齐方式:(左,中,右,两端对齐,自然)paragraphStyle.lineBreakMode = NSLineBreakByTruncatingTail;//结尾部分的内容以……方式省略 ( \"...wxyz\" ,\"abcd...\" ,\"ab...yz\")paragraphStyle.headIndent = 20;//整体缩进(首行除外)paragraphStyle.tailIndent = 20;//paragraphStyle.minimumLineHeight = 10;//最低行高paragraphStyle.maximumLineHeight = 20;//最大行高paragraphStyle.paragraphSpacing = 15;//段与段之间的间距paragraphStyle.paragraphSpacingBefore = 22.0f;//段首行空白空间/* 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;//从左到右的书写方向(一共➡️三种)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;//连字属性 在iOS,唯一支持的值分别为0和1#字体大小/*  NSFontAttributeName 字体大小  NSParagraphStyleAttributeName 段落的风格(设置首行,行间距,对齐方式什么的)  NSKernAttributeName 字间距  */NSDictionary *attributes = @{NSFontAttributeName:[UIFont systemFontOfSize:15],NSParagraphStyleAttributeName:paragraphStyle,NSKernAttributeName:@(10),};#简单应用textView.attributedText = [[NSAttributedString alloc] initWithString:textView.text attributes:attributes];

实现效果:

富文本.png

实现代码

#import \"ViewController.h\"@interface ViewController ()@property (weak, nonatomic) IBOutlet UILabel *label1;@end@implementation ViewController- (void)viewDidLoad {[super viewDidLoad];//创建富文本对象NSMutableAttributedString *attrrbute1 = [[NSMutableAttributedString alloc] initWithString:self.label1.text];//设置字体大小[attrrbute1 addAttribute:NSFontAttributeName value:[UIFont systemFontOfSize:29] range:NSMakeRange(5, 4)];//设置字体颜色[attrrbute1 addAttribute:NSForegroundColorAttributeName value:[UIColor redColor] range:NSMakeRange(10, 4)];//设置字体背景颜色[attrrbute1 addAttribute:NSBackgroundColorAttributeName value:[UIColor greenColor] range:NSMakeRange(15, 5)];//设置删除线[attrrbute1 addAttribute:NSStrikethroughStyleAttributeName value:[NSNumber numberWithInteger:1] range:NSMakeRange(31, 10)];//设置下划线[attrrbute1 addAttribute:NSUnderlineStyleAttributeName value:[NSNumber numberWithInteger:2] range:NSMakeRange(40, 10)];//一下两者必须结合使用//设置空心字颜色[attrrbute1 addAttribute:NSStrokeColorAttributeName value:[UIColor orangeColor] range:NSMakeRange(50, 10)];//空心字边框颜色[attrrbute1 addAttribute:NSStrokeWidthAttributeName value:[NSNumber numberWithInteger:1] range:NSMakeRange(50, 10)];//将富文本属性添加到控件上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 创建LabelUILabel *namelabel = [[UILabel alloc] initWithFrame:CGRectMake(100, 100, 200, 200)];//2 设置属性//设置文字namelabel.text = @\"姓名\";//设置背景颜色namelabel.backgroundColor = [UIColor whiteColor];//设置内容对齐方式namelabel.textAlignment = NSTextAlignmentCenter;//设置内容字体大小//namelabel.font = [UIFont systemFontOfSize:20];namelabel.font = [UIFont fontWithName:@\"Helvetica-Bold\" size:20];//设置文字超出, 换行显示namelabel.lineBreakMode = NSLineBreakByCharWrapping;namelabel.numberOfLines = 0;//设置Label圆角namelabel.layer.borderWidth = 1;namelabel.layer.cornerRadius = 8;namelabel.layer.masksToBounds = YES;//设置文字效果//阴影效果namelabel.shadowColor = [UIColor colorWithRed:0.203 green:0.260 blue:0.571 alpha:0.462];//阴影位置namelabel.shadowOffset = CGSizeMake(5, 5);// (x, y)//设置文字角度namelabel.transform = CGAffineTransformMakeRotation(0.2);//添加富文本//1 声明富文本NSMutableAttributedString *attributeStr = [[NSMutableAttributedString alloc] initWithString:@\"富文本文字+ 测试换行文字文字文字文字文字文字\"];//2 设置富文本内容样式//2.1 字体大小//参数一: 修改的属性  参数二: 类型的具体值  参数三: 修改的区间[attributeStr addAttribute:NSFontAttributeName value:[UIFont systemFontOfSize:40] range:NSMakeRange(0, 3)];//2.2 设置空心字[attributeStr addAttribute:NSStrokeWidthAttributeName value:@2 range:NSMakeRange(0, 4)];//2.3 设置空心字颜色[attributeStr addAttribute:NSStrokeColorAttributeName value:[UIColor redColor] range:NSMakeRange(0, 4)];//3 为label指定富文本对象(需要放置在富文本样式后面)namelabel.attributedText = attributeStr;//namelabel.backgroundColor = [UIColor colorWithRed:0.792 green:1.000 blue:0.814 alpha:1.000];//3 添加到视图[self.view addSubview:namelabel];
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