keyboard how to hide it - objective-c

Question

I have a UIView with some UITextField, but when I click at them, I cant hide the keyboard and the "send" button is behind the keyboard:
how can I hide it?
Thanks!

Answer 1

Add UITextField's delegate method in your code.Don't forget to set the delegate.Whenever return key is keyboard is pressed this below method will be called. Also set its delegates:
- (BOOL)textFieldShouldReturn:(UITextField *)textField
{
[textField resignFirstResponder];
return YES;
}
EDIT : when once focused to textField and focus to other textfield, that textfield will not resign so do this as i assume from topmost u have textField1, textField2, textField3, textField4 if any more.... Add this delegate method.
- (BOOL)textFieldShouldBeginEditing:(UITextField *)textField
{
if(textField == textField1) //motive resign other textFields
{
[textField2 resignFirstResponder];
[textField3 resignFirstResponder];
[textField4 resignFirstResponder];
}
else if(textField == textField2) //motive resign other textFields
{
[textField1 resignFirstResponder];
[textField3 resignFirstResponder];
[textField4 resignFirstResponder];
}
else if(textField == textField3) //motive resign other textFields
{
[textField1 resignFirstResponder];
[textField2 resignFirstResponder];
[textField4 resignFirstResponder];
}
else if(textField == textField4) //motive resign other textFields
{
[textField1 resignFirstResponder];
[textField2 resignFirstResponder];
[textField3 resignFirstResponder];
}
return YES;
}
EDIT U can use this also:
- (BOOL)textFieldShouldBeginEditing:(UITextField *)textField
{
[self.view endEditing:YES];
return YES;
}

Answer 2

I use this code, this event runs when you tap anywhere in view, and you do not depend on textFields events:
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
UITouch *touch = [[event allTouches] anyObject];
if ([textField1 isFirstResponder] && [touch view] != textField1) {
[textField1 resignFirstResponder];
}
if ([textField2 isFirstResponder] && [touch view] != textField2) {
[textField2 resignFirstResponder];
}
...
[super touchesBegan:touches withEvent:event];
}