1) You will need a scroll view if the contents you have now does not fit in iphone screen. [If you are adding the scroll view just to make the textfield scroll up when keyboard comes up, then its not needed]
2) For showing the textfields without being hidden by the keyboard, the standard way is to move up/down the view having textfields whenever the keyboard is shown
here is a sample code
-(void)textFieldDidBeginEditing:(UITextField *)sender
{
if ([sender isEqual:_textField])
{
//move the main view, so that the keyboard does not hide it.
if (self.view.frame.origin.y >= 0)
{
[self setViewMovedUp:YES];
}
}
}
//method to move the view up/down whenever the keyboard is shown/dismissed
-(void)setViewMovedUp:(BOOL)movedUp
{
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.5]; // if you want to slide up the view
CGRect rect = self.view.frame;
if (movedUp)
{
// 1. move the view's origin up so that the text field that will be hidden come above the keyboard
// 2. increase the size of the view so that the area behind the keyboard is covered up.
rect.origin.y -= kOFFSET_FOR_KEYBOARD;
rect.size.height += kOFFSET_FOR_KEYBOARD;
}
else
{
// revert back to the normal state.
rect.origin.y += kOFFSET_FOR_KEYBOARD;
rect.size.height -= kOFFSET_FOR_KEYBOARD;
}
self.view.frame = rect;
[UIView commitAnimations];
}
- (void)keyboardWillShow:(NSNotification *)notif
{
//keyboard will be shown now. depending for which textfield is active, move up or move down the view appropriately
if ([_textField isFirstResponder] && self.view.frame.origin.y >= 0)
{
[self setViewMovedUp:YES];
}
else if (![_textField isFirstResponder] && self.view.frame.origin.y < 0)
{
[self setViewMovedUp:NO];
}
}
- (void)viewWillAppear:(BOOL)animated
{
// register for keyboard notifications
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillShow:)
name:UIKeyboardWillShowNotification object:self.view.window];
}
- (void)viewWillDisappear:(BOOL)animated
{
// unregister for keyboard notifications while not visible.
[[NSNotificationCenter defaultCenter] removeObserver:self name:UIKeyboardWillShowNotification object:nil];
}
define kOFFSET_FOR_KEYBOARD to a value as needed. like
#define kOFFSET_FOR_KEYBOARD 60.0
Hope this helps
RPDP
2009-07-14 18:03:55