如何在iPhone上显示来自API的HTML文本？ [英] How to show HTML text from API on the iPhone?
问题描述
解释我的情况的最好例子是使用博客文章。假设我有一个UITableView加载了我从API获得的博客帖子的标题。当我点击一行时，我想显示详细的博客文章。
The best example to explain my situation is to use a blog post. Let's say I have a UITableView loaded with title's of blog posts that I got from an API. When I click on a row I want to show the detailed blog post.
这样做时，API会回复几个字段，包括post body（其中）是HTML文本）。我的问题是，我应该使用什么来显示它，以便它显示为格式化的HTML？我应该使用UIWebView吗？我不确定你是否在浏览网页时使用UIWebView（比如用URL或其他东西初始化它），或者你可以将它交给HTML字符串，它会正确地格式化它。
When doing that, the API is handing back several fields, including the "post body" (which is HTML text). My question is, what should I use to display it so it shows up as formatted HTML? Should I use a UIWebView for that? I'm not sure if you use a UIWebView when you are literally viewing a web page (like initialize it with a URL or something) or if you can hand it an HTML string and it will format it properly.
此页面上还会显示其他几个字段，例如标题，类别，作者等。我只是使用UILabel，所以没有问题。但我不知道如何处理HTML块。我正在以编程方式完成所有这些工作，顺便说一句。
There are several other fields that will be showing on this page, such as title, category, author, etc. I'm just using UILabels for those, so no problems there. But I don't know what to do with the HTML chunk. I'm doing all of this programmatically, btw.
如果你说不清楚，我对iOS开发相对较新，仅用了2-3周，没有obj-c背景。因此，如果UIWebView是正确的方法，我也会感激任何陷阱！注意，如果有的话。
If you can't tell, I'm relatively new to iOS development, only about 2-3 weeks in, with NO obj-c background. So if a UIWebView is the right approach, I'd also appreciate any "gotcha!" notes, if there are any.
推荐答案
正如David Liu所说， UIWebview 就是这种方式去。我建议一些单独构建HTML字符串，然后将其传递给UIWebView。另外，我使用 [webView setBackgroundColor：[UIColor clearColor]] 使背景变得透明，这样你就可以更轻松地按照自己的意愿看待事物。
As David Liu said, UIWebview is the way to go. I would recommend a few building the HTML string separately and then passing it to the UIWebView. Also, I'd make the background transparent, using [webView setBackgroundColor:[UIColor clearColor]] so that you have an easier time making things look as they should.
以下是代码示例：
- (void) createWebViewWithHTML{
//create the string
NSMutableString *html = [NSMutableString stringWithString: @"<html><head><title></title></head><body style=\"background:transparent;\">"];
//continue building the string
[html appendString:@"body content here"];
[html appendString:@"</body></html>"];
//instantiate the web view
UIWebView *webView = [[UIWebView alloc] initWithFrame:self.view.frame];
//make the background transparent
[webView setBackgroundColor:[UIColor clearColor]];
//pass the string to the webview
[webView loadHTMLString:[html description] baseURL:nil];
//add it to the subview
[self.view addSubview:webView];
}
注意：
使用'NSMutableString'的好处是你可以继续通过整个解析操作构建你的字符串，然后将它传递给'UIWebView'，而'NSString'一旦创建就无法更改。
The benefit to using a 'NSMutableString' is that you can continue to build your string through an entire parsing operation and then pass it to the the 'UIWebView', whereas a 'NSString' cannot be changed once it is created.
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