how can i scroll between many textfield and textarea on uiscrollview? - iphone

Question

i have an nsarray of textfields and another of textarea. I have also a toolbar with next and previous button to manage navigation between my fields. I made a fonction in textfieldDidBeginEditing and another in textfieldDidEndEditing but it didn't work correctly.
my function is :
if (textField.frame.origin.y > 180) {
[UIScrollView beginAnimations:nil context:NULL];
[UIScrollView setAnimationDelegate:self];
[UIScrollView setAnimationDuration:0.4];
[UIScrollView setAnimationBeginsFromCurrentState:YES];
CGFloat updatedY = 150;
self.scrollView.frame = CGRectMake(self.scrollView.frame.origin.x,self.scrollView.frame.origin.y - updatedY, self.scrollView.frame.size.width,
self.scrollView.frame.size.height);
[UIScrollView commitAnimations];
}
Any help will be appreciated.

Answer 1

I think you want Keyboard handler. The one I am using is a very good keyboard handler.
Keyboard Handler by Sukhpal Singh
This is a very good tutorial from one of my good friend and You can use this.
For using this you just have to write a single line of code.
AutoScroller * scroller=[AutoScroller addAutoScrollTo:self.scrollView isDoneToolBarNeeded:NO];
yes its done.

Answer 2

Please try to use this one
- (BOOL)textViewShouldBeginEditing:(UITextView *)textView
{
[UIView beginAnimations:#"" context:nil];
[UIView setAnimationDuration:.30];
[self scrollViewToCenterOfScreen:textView];
[UIView commitAnimations];
return YES;
}
- (BOOL)textFieldShouldBeginEditing:(UITextField *)textField
{
[UIView beginAnimations:#"" context:nil];
[UIView setAnimationDuration:.30];
[self scrollViewToCenterOfScreen:textField];
[UIView commitAnimations];
return YES;
}
- (void)scrollViewToCenterOfScreen:(UIView *)theView
{
CGFloat y ;
CGFloat viewCenterY = theView.center.y;
CGRect applicationFrame = [[UIScreen mainScreen] applicationFrame];
CGFloat avaliableHeight = applicationFrame.size.height - 250;
y = viewCenterY - avaliableHeight / 2.0f;
if (y < 0)
{
y = 0;
}
[scrollView setContentOffset:CGPointMake(0, y)];
}

Answer 3

try this code:
- (void)textFieldDidBeginEditing:(UITextField *)textField;
{
[clientscrollview setContentOffset:CGPointMake(0, textField.center.y-180) animated:YES];
}
- (BOOL)textFieldShouldReturn:(UITextField *)textField
{
[clientscrollview setContentOffset:CGPointMake(0, 0) animated:YES];
[textField resignFirstResponder];
return YES;
}
- (void)textViewDidBeginEditing:(UITextView *)textView
{
[clientscrollview setContentOffset:CGPointMake(0,textView.center.y-180) animated:YES];
}
- (void)textViewDidEndEditing:(UITextView *)textView
{
[clientscrollview resignFirstResponder];
[clientscrollview setContentOffset:CGPointMake(0,0) animated:YES];
}