在Swift中的一个例子，使用从UITableViewCell中获取UITextField的indexPath的文本字段的确切点:

func textFieldDidBeginEditing(textField: UITextField) {
    let pointInTable = textField.convertPoint(textField.bounds.origin, toView: self.accountsTableView)
    let textFieldIndexPath = self.accountsTableView.indexPathForRowAtPoint(pointInTable)
    accountsTableView.scrollToRowAtIndexPath(textFieldIndexPath!, atScrollPosition: .Top, animated: true)
}

因为你在一个表格中有文本字段，最好的方法是调整表格的大小——你需要设置tableView.frame的高度比键盘的大小小(我认为大约165像素)，然后当键盘被关闭时再次展开它。

如果你不想让用户滚动，你也可以选择在那个时候禁用tableView的用户交互。

我认为没有“正确”的方法来做这件事。您必须为您的用例选择最合适的解决方案。 在我的iPad App中，我有一个UIViewController，它以UIModalPresentationFormSheet的形式呈现，由一个UITableView组成。这个表格每个单元格包含两个UITextFields。 只是调用scrollToRowAtIndexPath:atScrollPosition:animated:在textFieldDidBeginEditing:方法不为我工作。因此，我创建了一个tableFooterView:

- (void)viewDidLoad
{
    [super viewDidLoad];

    m_footerView = [[UIView alloc] initWithFrame:CGRectMake(0.0f, 0.0f, m_tableView.frame.size.width, 300.0f)];
    [m_footerView setBackgroundColor:[UIColor clearColor]];
    [m_tableView setTableFooterView:m_footerView];
    [m_footerView release];
}

这个想法是键盘隐藏tableFooterView而不是UITextFields。tableFooterView必须足够高。之后，你可以在textFieldDidBeginEditing:方法中使用scrollToRowAtIndexPath:atScrollPosition:animated:。

我认为也可以通过添加键盘通知的观察者来动态地显示和隐藏tableFooterView，但我还没有尝试过:

- (void)viewWillAppear:(BOOL)animated
{
    [super viewWillAppear:animated];

    [[NSNotificationCenter defaultCenter] addObserver:self 
                                             selector:@selector(keyboardWillShow:) 
                                                 name:UIKeyboardWillShowNotification 
                                               object:nil];
    [[NSNotificationCenter defaultCenter] addObserver:self 
                                             selector:@selector(keyboardWillHide:) 
                                                 name:UIKeyboardWillHideNotification 
                                               object:nil];
}

- (void)keyboardWillShow:(NSNotification *)notification 
{
     [m_tableView setTableFooterView:m_footerView];
}

- (void)keyboardWillHide:(NSNotification *)notification 
{
     [m_tableView setTableFooterView:nil];
}

- (void)viewWillDisappear:(BOOL)animated
{
    [super viewWillDisappear:animated];

    [[NSNotificationCenter defaultCenter] removeObserver:self name:UIKeyboardWillShowNotification object:nil];
    [[NSNotificationCenter defaultCenter] removeObserver:self name:UIKeyboardWillHideNotification object:nil];
}

Swift最简单的解决方案:

override func viewDidLoad() {
    super.viewDidLoad()
    
    searchBar?.becomeFirstResponder()
    NSNotificationCenter.defaultCenter().addObserver(self, selector: #selector(MyViewController.keyboardWillShow(_:)), name: UIKeyboardDidShowNotification, object: nil)
    NSNotificationCenter.defaultCenter().addObserver(self, selector: #selector(MyViewController.keyboardWillHide(_:)), name: UIKeyboardDidHideNotification, object: nil)
}

deinit {
    NSNotificationCenter.defaultCenter().removeObserver(self)
}

func keyboardWillShow(notification: NSNotification) {
    if let userInfo = notification.userInfo {
        if let keyboardHeight = userInfo[UIKeyboardFrameEndUserInfoKey]?.CGRectValue.size.height {
            tableView.contentInset = UIEdgeInsetsMake(0, 0, keyboardHeight, 0)
        }
    }
}

func keyboardWillHide(notification: NSNotification) {
    UIView.animateWithDuration(0.2, animations: { self.table_create_issue.contentInset = UIEdgeInsetsMake(0, 0, 0, 0) })
    // For some reason adding inset in keyboardWillShow is animated by itself but removing is not, that's why we have to use animateWithDuration here
    }

Swift 4.2或更高版本

override func viewDidLoad() {
    super.viewDidLoad()
    searchBar?.becomeFirstResponder()
    NotificationCenter.default.addObserver(self, selector: #selector(self.keyboardWillShow), name: UIResponder.keyboardDidShowNotification, object: nil)
    NotificationCenter.default.addObserver(self, selector: #selector(self.keyboardWillHide), name: UIResponder.keyboardDidHideNotification, object: nil)
}

deinit {
    NotificationCenter.default.removeObserver(self)
}

 @objc func keyboardWillShow(notification: NSNotification) {
    if let userInfo = notification.userInfo {
            let keyboardHeight = (userInfo[UIResponder.keyboardFrameEndUserInfoKey] as AnyObject).cgRectValue.size.height
            accountSettingsTableView.contentInset = UIEdgeInsets(top: 0, left: 0, bottom: keyboardHeight, right: 0)
        
    }
}
@objc func keyboardWillHide(notification: NSNotification) {
    UIView.animate(withDuration: 0.2, animations: { self.accountSettingsTableView.contentInset = UIEdgeInsets(top: 0, left: 0, bottom: 0, right: 0) })}
}

因此，经过数小时的艰苦工作，尝试使用这些当前的解决方案(完全失败)，我终于让事情正常工作，并更新它们以使用新的动画块。我的回答完全基于Ortwin上面的回答。

所以不管出于什么原因，上面的代码就是不适合我。我的设置似乎和其他人的很相似，但可能是因为我用的是iPad或4.3……不知道。它在做一些古怪的数学运算然后把我的tableview从屏幕上拍下来。

见我的解决方案的最终结果:http://screencast.com/t/hjBCuRrPC(请忽略照片。: - p)

所以我沿用了Ortwin的基本原理，但改变了计算原点的方法。Y和尺寸。我的表格视图的高度和键盘的高度。当我从结果中减去窗口的高度时，它告诉我有多少交集。如果它大于0(也就是有一些重叠)，我执行帧高度的动画。

此外，还有一些重绘问题得到了解决，1)等待滚动到单元格直到动画完成，2)使用UIViewAnimationOptionBeginFromCurrentState选项隐藏键盘。

有几件事需要注意。

_topmostrowbeforekeyboardwasshow & _originalFrame是在头文件中声明的实例变量。 自我。guestEntryTableView是我的tableView(我在外部文件中) iaskcgrecswap是Ortwin用于翻转帧坐标的方法 我只更新tableView的高度如果它至少有50px会显示 因为我不在UIViewController中，所以我没有self。视图，我只是把tableView返回到它的原始框架

同样，如果我Ortwin没有提供关键，我也不会得到这个答案。代码如下:

- (IBAction)textFieldDidBeginEditing:(UITextField *)textField
{
    self.activeTextField = textField;

    if ([self.guestEntryTableView indexPathsForVisibleRows].count) {
        _topmostRowBeforeKeyboardWasShown = (NSIndexPath*)[[self.guestEntryTableView indexPathsForVisibleRows] objectAtIndex:0];
    } else {
        // this should never happen
        _topmostRowBeforeKeyboardWasShown = [NSIndexPath indexPathForRow:0 inSection:0];
        [textField resignFirstResponder];
    }
}

- (IBAction)textFieldDidEndEditing:(UITextField *)textField
{
    self.activeTextField = nil;
}

- (void)keyboardWillShow:(NSNotification*)notification {
    NSDictionary* userInfo = [notification userInfo];

    NSValue* keyboardFrameValue = [userInfo objectForKey:UIKeyboardFrameEndUserInfoKey];

    // Reduce the tableView height by the part of the keyboard that actually covers the tableView
    UIInterfaceOrientation orientation = [[UIApplication sharedApplication] statusBarOrientation];
    CGRect windowRect = [[UIApplication sharedApplication] keyWindow].bounds;
    CGRect viewRectAbsolute = [self.guestEntryTableView convertRect:self.guestEntryTableView.bounds toView:[[UIApplication sharedApplication] keyWindow]];
    CGRect keyboardFrame = [keyboardFrameValue CGRectValue];
    if (UIInterfaceOrientationLandscapeLeft == orientation ||UIInterfaceOrientationLandscapeRight == orientation ) {
        windowRect = IASKCGRectSwap(windowRect);
        viewRectAbsolute = IASKCGRectSwap(viewRectAbsolute);
        keyboardFrame = IASKCGRectSwap(keyboardFrame);
    }

    // fix the coordinates of our rect to have a top left origin 0,0
    viewRectAbsolute = FixOriginRotation(viewRectAbsolute, orientation, windowRect.size.width, windowRect.size.height);

    CGRect frame = self.guestEntryTableView.frame;
    _originalFrame = self.guestEntryTableView.frame;

    int remainder = (viewRectAbsolute.origin.y + viewRectAbsolute.size.height + keyboardFrame.size.height) - windowRect.size.height;

    if (remainder > 0 && !(remainder > frame.size.height + 50)) {
        frame.size.height = frame.size.height - remainder;
        float duration = [[userInfo objectForKey:UIKeyboardAnimationDurationUserInfoKey] doubleValue];
        [UIView animateWithDuration: duration
                        animations:^{
                            self.guestEntryTableView.frame = frame;
                        }
                        completion:^(BOOL finished){
                            UITableViewCell *textFieldCell = (UITableViewCell*) [[self.activeTextField superview] superview];
                            NSIndexPath *textFieldIndexPath = [self.guestEntryTableView indexPathForCell:textFieldCell];
                            [self.guestEntryTableView scrollToRowAtIndexPath:textFieldIndexPath atScrollPosition:UITableViewScrollPositionMiddle animated:YES];
                        }];
    }

}

- (void)keyboardWillHide:(NSNotification*)notification {
    NSDictionary* userInfo = [notification userInfo];
    float duration = [[userInfo objectForKey:UIKeyboardAnimationDurationUserInfoKey] doubleValue];
    [UIView animateWithDuration: duration
                          delay: 0.0
                        options: (UIViewAnimationOptionBeginFromCurrentState)
                     animations:^{
                         self.guestEntryTableView.frame = _originalFrame;
                     }
                     completion:^(BOOL finished){
                         [self.guestEntryTableView scrollToRowAtIndexPath:_topmostRowBeforeKeyboardWasShown atScrollPosition:UITableViewScrollPositionTop animated:YES];
                     }];

}   

#pragma mark CGRect Utility function
CGRect IASKCGRectSwap(CGRect rect) {
    CGRect newRect;
    newRect.origin.x = rect.origin.y;
    newRect.origin.y = rect.origin.x;
    newRect.size.width = rect.size.height;
    newRect.size.height = rect.size.width;
    return newRect;
}

CGRect FixOriginRotation(CGRect rect, UIInterfaceOrientation orientation, int parentWidth, int parentHeight) {
    CGRect newRect;
    switch(orientation)
    {
        case UIInterfaceOrientationLandscapeLeft:
            newRect = CGRectMake(parentWidth - (rect.size.width + rect.origin.x), rect.origin.y, rect.size.width, rect.size.height);
            break;
        case UIInterfaceOrientationLandscapeRight:
            newRect = CGRectMake(rect.origin.x, parentHeight - (rect.size.height + rect.origin.y), rect.size.width, rect.size.height);
            break;
        case UIInterfaceOrientationPortrait:
            newRect = rect;
            break;
        case UIInterfaceOrientationPortraitUpsideDown:
            newRect = CGRectMake(parentWidth - (rect.size.width + rect.origin.x), parentHeight - (rect.size.height + rect.origin.y), rect.size.width, rect.size.height);
            break;
    }
    return newRect;
}

我认为最好的方法是通过UITableViewController。

如果你想在UIViewController中创建一个UITableView，只需要用一个嵌入的UITableViewController创建一个ContentView，并在UIViewController的viedDidLoad中放入以下代码行:

self.tableView = ((UITableViewController*)self.childViewControllers[0]).tableView;
self.tableView.delegate = self;
self.tableView.dataSource = self;

容易,)