iOS UITextView加载有HTML标签的HTML代码示例

在开发中，我们加载HTML最常用的是UIWebView，其实UITextView也可以加载HTML代码。

- (void)viewDidLoad {
    [super viewDidLoad];
    
    UITextView *textView = [[UITextView alloc] initWithFrame:CGRectMake(0, 40, kScreenWidth, kScreenHeight - 50)];
    [self.view addSubview:textView];
    
    //HTML代码
   NSString *htmlStr = @"
 
 
hiuehuirhfiefguihuiefuwifhewufcehsifhoifhiofhwohfwiohfwoicehicehiheifjkhuhuihwefhuiwhfibfiwehfurwhfuiwhfuiwefhuirwhfiw
 
 
hviurhrihvuerhviohvoiwehvewiohiowhviowvhoiheiohihuihguguygigdusichvregtgtgegtgvrtvtrbtrbtrbtrbtrbtbtvrgeggergrbrt  
hiuehuirhfiefguihuiefuwifhewufcehsicehicehiheifjkhuhuihwefhuiwhfibfiwehfurwhfuiwhfuiwefhuirwhfiw
 
";
    
    //对图片大小进行处理，适应屏幕宽度
    NSString *newString = [htmlStr stringByReplacingOccurrencesOfString:@"     
    NSAttributedString *attributedString = [[NSAttributedString alloc] initWithData:[newString dataUsingEncoding:NSUnicodeStringEncoding] options:@{ NSDocumentTypeDocumentAttribute: NSHTMLTextDocumentType } documentAttributes:nil error:nil];
    textView.attributedText = attributedString;
}

注意：在info.plist中配置：

App Transport Security Settings

  Allow Arbitrary Loads
 

注：

// 当前屏幕宽度
#define kScreenWidth    [UIScreen mainScreen].bounds.size.width
// 当前屏幕高度
#define kScreenHeight   [UIScreen mainScreen].bounds.size.height