How to hide Textbox Keyboard when "Done / Return" Button is pressed Xcode 4.2

Implement the delegate method UITextFieldDelegate, then:

- (void)viewDidLoad {    [super viewDidLoad];    self.yourIBtextField.delegate = self;}- (BOOL)textFieldShouldReturn:(UITextField *)textField {    [textField resignFirstResponder];    return NO;}

UITextView does not have any methods which will be called when the user hits the return key.

Even then if you want to do this, implement the textView:shouldChangeTextInRange:replacementText: method of UITextViewDelegate and in that check if the replacement text is \n, hide the keyboard.

There might be other ways but I am not aware of any.

Make sure you declare support for the UITextViewDelegate protocol.

- (BOOL)textView:(UITextView *)textView shouldChangeTextInRange:(NSRange)range replacementText:(NSString *)text {    if([text isEqualToString:@"\n"]) {        [textView resignFirstResponder];        return NO;    }    return YES;}

Make category on UIViewController with next method

- (void)hideKeyboard{    [[UIApplication sharedApplication] sendAction:@selector(resignFirstResponder)                                               to:nil                                             from:nil                                         forEvent:nil];}