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I'm trying to add a "done" button to the UIKeyboadnumpad, but with no success. What's wrong in my code? the keyboard don't have the done button @implementation DemoViewController - (void)loadView { self.view = [[UIView alloc] initWithFrame:[UIScreen mainScreen].applicationFrame]; self.view.backgroundColor = [UIColor groupTableViewBackgroundColor]; textField = [[UITextField alloc] initWithFrame:CGRectMake(10, 200, 300, 26)]; textField.borderStyle = UITextBorderStyleRoundedRect; textField.keyboardType = UIKeyboardTypeNumberPad; textField.returnKeyType = UIReturnKeyDone; textField.textAlignment = UITextAlignmentLeft; textField.text = @"12345"; [self.view addSubview:textField]; [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillShow:) name:UIKeyboardWillShowNotification object:nil]; } - (void)keyboardWillShow:(NSNotification *)note { // create custom button UIButton *doneButton = [UIButton buttonWithType:UIButtonTypeCustom]; doneButton.frame = CGRectMake(0, 163, 106, 53); doneButton.adjustsImageWhenHighlighted = NO; [doneButton setImage:[UIImage imageNamed:@"DoneUp.png"] forState:UIControlStateNormal]; [doneButton setImage:[UIImage imageNamed:@"DoneDown.png"] forState:UIControlStateHighlighted]; [doneButton addTarget:self action:@selector(doneButton:) forControlEvents:UIControlEventTouchUpInside]; // locate keyboard view UIWindow* tempWindow = [[[UIApplication sharedApplication] windows] objectAtIndex:0]; UIView* keyboard; for(int i=0; i<[tempWindow.subviews count]; i++) { keyboard = [tempWindow.subviews objectAtIndex:i]; // keyboard view found; add the custom button to it if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 3.2) {

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