11 - 簡單實現圖文混排(NSAttributedString 實現)

 1 - (void)setupTextView
 2 {
 3     // 富文本技術：
 4     // 1.圖文混排
 5     // 2.隨意修改文字樣式
 6     //    self.textView.text = @"哈哈4365746875";
 7     //    self.textView.textColor = [UIColor blueColor];
 8     NSMutableAttributedString *string = [[NSMutableAttributedString alloc] initWithString:@"哈哈123456"];
 9     // 設置「哈哈」爲藍色
10     [string addAttribute:NSForegroundColorAttributeName value:[UIColor blueColor] range:NSMakeRange(0, 2)];
11     [string addAttribute:NSFontAttributeName value:[UIFont systemFontOfSize:30] range:NSMakeRange(0, 2)];
12     [string addAttribute:NSBackgroundColorAttributeName value:[UIColor redColor] range:NSMakeRange(0, 2)];
13     
14     // 設置「456」爲紅色
15     [string addAttribute:NSForegroundColorAttributeName value:[UIColor redColor] range:NSMakeRange(6, 2)];
16     [string addAttribute:NSFontAttributeName value:[UIFont boldSystemFontOfSize:24] range:NSMakeRange(6, 2)];
17     [string addAttribute:NSUnderlineStyleAttributeName value:@(NSUnderlineStyleSingle) range:NSMakeRange(6, 2)];
18     
19     // 建立圖片圖片附件
20     NSTextAttachment *attach = [[NSTextAttachment alloc] init];
21     attach.image = [UIImage imageNamed:@"placeholderHeader"];
22     attach.bounds = CGRectMake(0, 0, 15, 15);
23     NSAttributedString *attachString = [NSAttributedString attributedStringWithAttachment:attach];
24     
25     
26     [string appendAttributedString:attachString];
27     
28     [string appendAttributedString:[[NSAttributedString alloc] initWithString:@"789"]];
29     
30     self.textView.attributedText = string;

37 }

iOS 6以前：CoreText,純C語言,極其蛋疼      iOS 6開始：NSAttributedString,簡單易用      iOS 7開始：TextKit,功能強大,簡單易用