检查URL是否是本地文件?

时间:2011-10-25 11:39:47

标签: objective-c ios cocoa-touch uiwebview

我正在尝试使用以下代码检查UIWebView中的当前网址:

- (void)webViewDidFinishLoad:(UIWebView *)webView {

    NSString *currentURL = webView.request.URL.absoluteString;

    NSLog(@"Current URL: %@", currentURL);

    NSString *loginpage = @"file:///var/mobile/Applications/652BAC0C-DEAE-4695-9195-BE617B9D5106/School%20VLE%20Business.app/login.html";

    if([currentURL isEqualToString:loginpage])
    {
        NSLog(@"Inputting user details...");

        NSString *result;
        result = [webView stringByEvaluatingJavaScriptFromString:[NSString stringWithFormat:@"$('#usernamefield').val('%@');", username]];
        result = [webView stringByEvaluatingJavaScriptFromString:[NSString stringWithFormat:@"$('#passwordfield').val('%@');", password]];
        result = [webView stringByEvaluatingJavaScriptFromString:@"$('#submitbutton').click();"];

        NSLog(@"Logged in!");

    }
}

但本地网址(652BAC0C-DEAE-4695-9195-BE617B9D5106对我来说)中的代码对于每个人来说都不一样,所以我怎样才能进行同样的检查但没有长代码?

4 个答案:

答案 0 :(得分:9)

这可以作为确定给定URL是来自本地文件系统还是远程加载的更通用的解决方案: -

NSString *str = @"file://var/mobile/Applications/652BAC0C-DEAE-4695-9195-BE617B9D5106/School%20VLE%20Business.app/login.html";
NSURL *url = [NSURL URLWithString:str];
if ([[url scheme] isEqualToString:@"file"]) {
    // URL is a (local) file...
}

(回答问题的主题如何检查网址是否为本地文件?

答案 1 :(得分:3)

NSString *loginpage = [[NSBundle mainBundle] pathForResource:@"login" ofType:@"html"];

由于您在应用中使用了空格(我建议您不要再使用空格),您可以使用以下代码来模拟那些%20转义字符串:

NSString *loginpage = [[[NSBundle mainBundle] pathForResource:@"login" ofType:@"html"] stringByReplacingOccurrencesOfString:@"%20" withString:@" "];

答案 2 :(得分:2)

您可以使用这些行搜索字符串:

if ([your_complete_string rangeOfString:@"YOUR_SEARCH_STRING"].location != NSNotFound){

    // Do your stuff here if found

}

答案 3 :(得分:-1)

您可以使用fileReferenceUrl

找到
//if local file
NSURL *url = [NSURL fileURLWithPath:songsList[index]];
if(url.fileReferenceURL != nil){
    //is local URL
}else{
    //Is live
   url = [NSURL URLWithString:songsList[index]];
}