UIWebView, enter a password

I want to enter a password in a webpage I load in an UIWebView. The password is a string, and I wan开发者_Python百科t to enter the password and hit a button in the page, automatically when the View loads.

Any help?

If you're using a UIWebView, I assume you're loading some web service into that WebView. Why not build your login system into the web service? You could even just use HTTP Basic Auth.

If you're managing the passwords within your cocoa app, then I would probably implement a UIAlertView with a UITextField asking for the password. When the user presses Login you can validate the password and then load your web service in your UIWebView.

If you're managing the passwords in a database on the website then you'd build an html/js/php/mysql login form and load it in the UIWebView first.

Update

I'd go with the first option and display your own login form using cocoa controls like the UIAlertView with 2 UITextFields. You can then save the username and password using the keychain services and submit them every time the users launches the app or the web session expires.

If you want to try this method I'd suggest having a look at the ASIHTTPRequest framework. In particular ASIFormDataRequest which let's you easily send a form with the correct fields.

- (void)login
{
    ASIFormDataRequest *request = [ASIFormDataRequest requestWithURL:url];

    // Change these values to the ones in NSUserDefaults and the KeyChain
    [request setPostValue:@"Joe" forKey:@"username"];
    [request setPostValue:@"Secret" forKey:@"password"];

    [request setDelegate:self];
    [request startAsynchronous];
}

- (void)requestFinished:(ASIHTTPRequest *)request
{
    // Use when fetching text data
    NSString *responseString = [request responseString];

    // Use when fetching binary data.
    NSData *responseData = [request responseData];
}

- (void)requestFailed:(ASIHTTPRequest *)request
{
   NSError *error = [request error];
}

Just an idea : you could try to add some javascript to the page before displaying it in the webview and use the ONLOAD event to fill the password field and post the form.

To do so you have 2 solutions :

• Use the stringByEvaluatingJavaScriptFromString instance method of UIWebView , you could evaluate your javascript in the webViewDidFinishLoad delegate method for example. You will find an example here : http://iphoneincubator.com/blog/windows-views/how-to-inject-javascript-functions-into-a-uiwebview

• Or if for some reason you can't use this solution in your context you can always download the HTML using NSURLConnection, and then edit the string to insert your javascript. Then load the WebView using loadHTMLString:baseURL: