How to clear back forward list in UIWebview on iPhone?

user_398148 0
Viewed 28273

I want to access/clear the back forward list as if the UIWebView is new again. Is there any public API or workaround to do this?

I've tried:

while ([webview canGoback]) {
    [webview goBack];
}

but that will freeze the device (simulator too).

ipad uiwebview iphone
8 Answers

If you're trying to "reuse" an existing UIWebView, and disable the ability to go back to whatever previous page it was in before, you can:

  1. When loading the new request (the one that user shouldn't go back from), save the URL of the new request, say like:

    self.curURL = [NSURL urlWithString:@"http://www.bla.com"];
    [webview loadRequest:[NSURLRequest requestWithURL:curURL]];

  2. I'm guessing you have your own back button, so on your webViewDidFinishLoad delegate method, add:

    backbttn.enabled = webView.canGoBack && ![[webView.request URL] isEqual: curURL];

This way, the user won't even know that the UIWebView can go back to the page before.

user_5435850

I think if you release the uiwebview object and recreate then it would clear the history. I actually have a reverse problem. My uiwebview object automatically gets released during low memory event if it's inside a nonvisible view. I then have to recreate it in viewDidLoad but it does not retain the history from that point onwards.

user_5824320
Related