iOS webview加载HTML字符串，图片及文字自适应

直接上代码

NSString *content = [content stringByReplacingOccurrencesOfString:@"&quot" withString:@"'"];
    content = [content stringByReplacingOccurrencesOfString:@"<" withString:@"<"];
    content = [content stringByReplacingOccurrencesOfString:@">" withString:@">"];
    content = [content stringByReplacingOccurrencesOfString:@""" withString:@"\""];
    
    NSString *htmls = [NSString stringWithFormat:@" \n"
                       " \n"
                       " \n"
                       " \n"
                       " \n"
                       ""
                       "%@"
                       ""
                       "",content];
    
    
    [_webView loadHTMLString:htmls baseURL:nil];

处理HTMLString的原理：

原理就是用一个for循环，拿到所有的图片，对每个图片都处理一次，让图片的宽为100%，就是按照屏幕宽度自适应；让图片的高atuo，自动适应。文字的字体大小，可以去改font-size:15px，这里我用的是15px。根据自己的具体需求去改吧。

- (NSString *)htmlEntityDecode:(NSString *)string
{
    string = [string stringByReplacingOccurrencesOfString:@""" withString:@"\""];
    string = [string stringByReplacingOccurrencesOfString:@"'" withString:@"'"];
    string = [string stringByReplacingOccurrencesOfString:@"<" withString:@"<"];
    string = [string stringByReplacingOccurrencesOfString:@">" withString:@">"];
    string = [string stringByReplacingOccurrencesOfString:@"&" withString:@"&"]; // Do this last so that, e.g. @"&lt;" goes to @"<" not @"<"

    return string;
}