JavaScript将CSS注入Swift WebView

Question

我试图在xCode上加载一个页面，然后用另一个文件覆盖它的样式。我已经在Chrome中手动测试了这一点，页面的两个部分应该变成鲜红色，但它们不在我的XCode项目中。有任何想法吗？

class ViewController: UIViewController { 

var urlPath = "http://grappul.com" 

@IBOutlet weak var webView: UIWebView! 

override func viewDidLoad() { 
    super.viewDidLoad() 
    // Do any additional setup after loading the view, typically from a nib. 
    loadAddress() 
} 

override func didReceiveMemoryWarning() { 
    super.didReceiveMemoryWarning() 
    // Dispose of any resources that can be recreated. 
} 

func loadAddress(){ 
    let requestURL = NSURL(string:urlPath) 
    let request = NSURLRequest(URL: requestURL!) 
    webView.loadRequest(request) 
    println("got the page!") 
    webViewDidFinishLoad(webView) 
} 

func webViewDidFinishLoad(website: UIWebView){ 
    var jsscript = "var script = document.createElement('link'); 
    script.type = 'text/css'; 
    script.rel = 'stylesheet'; 
    script.href = 'http://www.grappul.com/snapkin/restyle.css'; 
    document.getElementByTagName('head')[0].appendChild(script);" 
    println("got the css!") 
    website.stringByEvaluatingJavaScriptFromString(jsscript) 
} 

谢谢吨家伙！

Answer 1

的UIWebView中似乎没有一个大的JavaScript接口寻找错误报告，但你应该看看Safari网络检查和监测任何UIWebView的应用能力：

https://developer.apple.com/library/prerelease/ios/documentation/AppleApplications/Conceptual/Safari_Developer_Guide/Introduction/Introduction.html

然而似乎需要一些额外的工作才能使它与任何iOS应用程序一起工作（请参阅Get Oriented：基于Webkit的应用程序）