Question

I have an iPad application in which I am displaying an input form as a UIWebView in a UIPopoverController. My popover controller is sized such that it does not have to be resized when the keyboard appears.

When I tap in an input field in the UIWebView, the web view is pushed further up when the keyboard appears. It is pushed up to the point that the text field is at the top of the frame. (This is the standard behavior you see when using forms in mobile safari).

The webview does not scroll at all before the keyboard is up, but once it is, (as seen in the second image) I can scroll the webview back down to the correct position.

Because my webview is already sized correctly, I do not want this behavior. Does anyone have any suggestions on how to prevent this? (Not using a web view here is currently not an option)

Thanks!

Answer 1

1. Add UIKeyboardWillShowNotification to NSNotificationCenter in viewDidLoad

   [[NSNotificationCenter defaultCenter] addObserver:self 
       selector:@selector(keyboardWillShow:) 
       name:UIKeyboardWillShowNotification object:nil];
   

2. Implement keyboardWillShow: and readjustWebviewScroller methods

   - (void)keyboardWillShow:(NSNotification *)aNotification {
       [self performSelector:@selector(readjustWebviewScroller) withObject:nil afterDelay:0];
   }
   
   
   - (void)readjustWebviewScroller {
       _webView.scrollView.bounds = _webView.bounds;
   }
   

This does work for me.