将 html 文件从资源加载到 UIWebView 的正确方法？

发布于 2024-12-15 14:57:52 字数 372 浏览 1 评论 0原文

我认为将 html 文件从我的资源加载到 UIWebView 中会很容易，但看起来它需要一些额外的东西，而我没有做。到目前为止，我的控制器中有 viewDidLoad：

NSURL *url = [NSURL URLWithString:@"radialGradient.html"];
NSURLRequest *req = [NSURLRequest requestWithURL:url];
[webView loadRequest:req];

webView.frame = CGRectMake(0, 0, 768, 1024);

我已经尝试过常规网址（google.com）并且工作正常。但对于我的源文件中的文件，它只会呈现白色的空白屏幕。

原文

I thought it would be easy to load in a html file from my resources into a UIWebView, but it looks like it requires something extra that I'm not doing. So far I have in my viewDidLoad in my controller:

NSURL *url = [NSURL URLWithString:@"radialGradient.html"];
NSURLRequest *req = [NSURLRequest requestWithURL:url];
[webView loadRequest:req];

webView.frame = CGRectMake(0, 0, 768, 1024);

I've tried regular web addresses (google.com) and it works fine. But with the file in my sources it just renders a white blank screen.

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倒数 2024-12-22 14:57:52

有两件事：

1）

你现在拥有的不是 URL。这只是一个文件名。您需要在 RadialGradient.html 前面添加一个“file:///”。

而且，您可能还需要放入 RadialGradient.html 的可解析路径，现在您的应用程序不知道在哪里寻找它。

像这样的东西：

NSURL * resourcePathURL = [[NSBundle mainBundle] resourceURL];
if(resourcePathURL)
{
    NSURL * urlToLoad = [resourcePathURL URLByAppendingPathComponent: @"radialGradient.html"];
    if(urlToLoad)
    {
        NSURLRequest * req = [NSURLRequest requestWithURL: urlToLoad];
        [webView loadRequest: req];
    }
}

Two things:

What you have now is not a URL. It's just a filename. You need to be prepending a "file:///" in front of that radialGradient.html.

And, you'll likely also need to put in a resolvable path to radialGradient.html Right now your app doesn't know where to look for it.

Something like:

NSURL * resourcePathURL = [[NSBundle mainBundle] resourceURL];
if(resourcePathURL)
{
    NSURL * urlToLoad = [resourcePathURL URLByAppendingPathComponent: @"radialGradient.html"];
    if(urlToLoad)
    {
        NSURLRequest * req = [NSURLRequest requestWithURL: urlToLoad];
        [webView loadRequest: req];
    }
}

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