UIKeyboardTypeNumberPad 数字键盘添加完成按钮

一：添加通知

//数字键盘添加完成

[[NSNotificationCenterdefaultCenter] addObserver:selfselector:@selector(keyboardWillShow:) name:UIKeyboardDidShowNotificationobject:nil];

二：数字键盘出现添加

//键盘处理
- (void)keyboardWillShow:(NSNotification *)note
{
UIButton *doneButton = [UIButton buttonWithType:UIButtonTypeCustom];
doneButton.frame = CGRectMake(15, 172, 65, 35);
//doneButton.frame = CGRectMake(8, 163, 50, 30);

//[doneButton setTitle:@"完成" forState:UIControlStateNormal];
[doneButton setBackgroundImage:[UIImage imageNamed:@"pickerBackIMG.png"] forState:UIControlStateNormal];
[doneButton addTarget:self action:@selector(doneBtn) forControlEvents:UIControlEventTouchUpInside];

UIWindow* tempWindow = [[[UIApplication sharedApplication] windows] objectAtIndex:1];
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(([[keyboard description] hasPrefix:@"<UIPeripheralHostView"] == YES) ||(([[keyboard description] hasPrefix:@"<UIKeyboard"] == YES)))
[keyboard addSubview:doneButton];
}
}

- (void)doneBtn
{
[phoneNumTextField resignFirstResponder];

}

　　三：移除通知

- (void)dealloc

{

[[NSNotificationCenterdefaultCenter]removeObserver:selfname:UIKeyboardDidShowNotificationobject:nil];

[kDatePickerrelease];

[super dealloc];

}