handleKeyboardWillShow notification Handling - ios

Question

I have a Tableview in inside a viewcontroller. I have added following code to get keyboard notifications
[[NSNotificationCenter defaultCenter] addObserver:self
selector:#selector(handleKeyboardWillShow:)
name:UIKeyboardWillShowNotification
object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self
selector:#selector(handleKeyboardWillHide:)
name:UIKeyboardWillHideNotification
object:nil];
And on keyboard show i am scrolling my table to bottom.
- (void)handleKeyboardWillShow:(NSNotification *)notification
{
[self scrollToBottomAnimated:YES];
}
But i have a textview in my view controller as well. So when i click on textview the handleKeyboardWillShow method is called as well resulting unnecessary scrolling my tableview which i do not need if textview is clicked.
Can some one please help me figure out how to detect from which sender handleKeyboardWillShow is called.
Thanks

Answer 1

You can do it by checking who is first responder.
- (void)handleKeyboardWillShow:(NSNotification *)notification
{
if ([textFieldForScrolling isFirstResponder]) {
[self scrollToBottomAnimated:YES];
} else {
NSLog(#"Is a different text input");
}
}
Let me know if you need more explanation.

Answer 2

I would register for keyboardWillChange - which covers both showing and hiding. You can get the keyboard rect and adjust your content offset based on the keyboard's location. Note: You can animate the change in content offset - I just didn't do it in this answer.
In your textfield delegate methods willBeginEditing and didEndEditing, you can set the state variable called currentTextField.
-(void)keyboardWillChange:(NSNotification *)notification {
keyboardRect = [notification.userInfo[UIKeyboardFrameEndUserInfoKey] CGRectValue];
keyboardRect = [self.view convertRect:keyboardRect fromView:nil];
CGPoint currentFieldPoint = [currentTextField convertPoint:currentTextField.frame.origin toView:self.view];
if(keyboardRect.origin.y < currentFieldPoint.y + currentTextField.frame.size.height){
//move stuff here
[[self tableView] setContentOffset:CGPointMake(0, [self tableView].contentOffset.y + offsetValue)];
}
}