Android: WebView's method goBack() shows a blank page

Question

I have an android application that loads web pages in an activity with a WebView. I am using the retrieving the page manually and using WebView's loadDataWithBaseURL to display it on screen. Everything there is fine.

Now, i am trying to override the Back button press to simulate going back in the WebView history stack. I am able to override the Back button press, i can see that there is a history stack in the WebView, i can see that the history url is correct, but when i call WebView's goBack() method, it displays a blank page.

Anyone encountered this before or give me a couple of suggestions to proceed from this?

Edit: If i use WebView's loadUrl method, the Back button with an override works as intended. But why.... If i need to handle this manually, how do i start messing with history pages?

Answer 1

I got the same problem also. I found that the problem went away if I set the historyUrl parameter on the call to loadDataWithBaseURL.

Answer 2

You should check if the canGoBack() method returns true before calling goBack()