Question

我查看了各种类似的问题和答案，仍然无法使其发挥作用，所以我正在添加自己的问题：

我正在玩UIWebView。我可以使用内联CSS创建一个工作的html页面。如果它位于应用资源组的文件中，我无法弄清楚如何加载CSS。

我的代码是：

NSString *path = [[NSBundle mainBundle] pathForResource:@"webViewPage2" ofType:@"html"];
    NSFileHandle *readHandle = [NSFileHandle fileHandleForReadingAtPath:path];

    NSString *htmlString = [[NSString alloc] initWithData: 
                              [readHandle readDataToEndOfFile] encoding:NSUTF8StringEncoding];


    webView.opaque = NO;
    webView.backgroundColor = [UIColor clearColor];
    [self.webView loadHTMLString:htmlString baseURL:nil];
    [htmlString release];

我的html电话是这样的：

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<meta name="viewport" content="initial-scale=1.0, maximum-scale=1.0, user-scalable=no, width=device-width">
<link rel="stylesheet" type="text/css" media="only screen and (max-device-width: 480px)" href="/greek123.css" />
</head>

<body style="background-color: transparent;">

<h2>Some Title</h2>


<p>We can put instructions here. Such as: 
"uh-oh You should not have pushed that button!"
</p>


</body>

</html>

我会很感激任何想法或解决方案。非常感谢！

Answer 1

将UIWebView的baseURL更改为mainbundle的url。

NSURL *mainBundleURL = [[NSBundle mainBundle] bundleURL];
[self.webView loadHTMLString:htmlString baseURL:mainBundleURL];

斯威夫特3：

webView.loadHTMLString(contentString, baseURL: Bundle.main.bundleURL)

Answer 2

我想我已经弄明白了。 htmlString只是一个NSString，我们可以替换它中的文本。这段代码对我有用

NSString *info = [NSString stringWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"your html file name" ofType:@"html"] encoding: NSUTF8StringEncoding error: &error];

info=[info stringByReplacingOccurrencesOfString:@"styles.css" withString:@"stylesIPad.css"];

Answer 3

我以为我应该发布整个代码块来访问外部CSS文件。希望它对其他人有用：

- (void)viewDidLoad
{
    NSURL *mainBundleURL = [NSURL fileURLWithPath:[[NSBundle mainBundle] bundlePath]];

    NSString *path = [[NSBundle mainBundle] pathForResource:@"mypagename" ofType:@"html"];
    NSFileHandle *readHandle = [NSFileHandle fileHandleForReadingAtPath:path];

    NSString *htmlString = [[NSString alloc] initWithData: 
                              [readHandle readDataToEndOfFile] encoding:NSUTF8StringEncoding];
    webView.opaque = NO;
    webView.backgroundColor = [UIColor clearColor];
    [self.webView loadHTMLString:htmlString baseURL:mainBundleURL];

    [htmlString release];
}

Answer 4

NSURL *BundleURL = [NSURL fileURLWithPath:[[NSBundle mainBundle] pathForResource:@"name your style" ofType:@"css"]];
webView.opaque = NO;
webView.backgroundColor=[UIColor clearColor];
[webView loadHTMLString:htmlString baseURL:BundleURL];

如何在Xcode中为UIWebView添加外部样式表？

4 个答案: