개발이야기

- (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]];
        }
    }
}

- (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]];
        }
    }
}

이렇게 하면 모든뷰를 검사하여 키보드를 숨겨줍니다