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textView = [[UITextView alloc] initWithFrame:CGRectMake(0, 0, self.view.bounds.size.width, self.view.bounds.size.height)];
NSString *textString = @"<?xml version=1.0 encoding=UTF-8 standalone=no?><html xmlns=http://www.w3.org/1999/xhtml><head><title></title></head><body><p>test html image display<img alt=cover src=/var/mobile/Applications/F059DC2B-C3AE-494D-BD22-21E2147DCE15/Library/Caches/001.jpeg></img></p></body></html>";
NSAttributedString *attributedString = [[NSAttributedString alloc] initWithData:[textString dataUsingEncoding:NSUnicodeStringEncoding] options:@{ NSDocumentTypeDocumentAttribute: NSHTMLTextDocumentType } documentAttributes:nil error:nil];
textView.attributedText =attributedString;
[self.view addSubview:textView];