어디서든 키보드 감추기

//키보드를 사라지게 하기 위해 사용하는 재귀함수 

- (void)_hideKeyboardRecursion:(UIView*)view 

{

if ([view conformsToProtocol:@protocol(UITextInputTraits)]) 

{

[view resignFirstResponder];

}

if ([view.subviews count]>0) 

{

for (int i = 0; i < [view.subviews count]; i++) 

{

[self _hideKeyboardRecursion:[view.subviews objectAtIndex:i]];

}

}

}

//키보드 감추기

- (void)hideKeyboard 

{

UIWindow *tempWindow;

for (int c=0; c < [[[UIApplication sharedApplication] windows] count]; c++) 

{

tempWindow = [[[UIApplication sharedApplication] windows] objectAtIndex:c];

for (int i = 0; i < [tempWindow.subviews count]; i++) 

{

[self _hideKeyboardRecursion:[tempWindow.subviews objectAtIndex:i]];

}

}

}