从Dune Buggy的回答中得到了参考。根据TextField的位置向上滚动视图。因为现有的答案是滚动屏幕的整个视图，所以我需要根据文本字段的框架滚动视图。

键盘WillShow

@objc func keyboardWillShow(notification: NSNotification) {
    
    guard let keyboardSize = (notification.userInfo?[UIResponder.keyboardFrameEndUserInfoKey] as? NSValue)?.cgRectValue else {
        
        // if keyboard size is not available for some reason, don't do anything
        return
    }
    let keyboardFrame = keyboardSize
    
    let maxheightScreen = self.view.frame
    
    
    if (self.txtEmail.frame.origin.y + ((self.txtEmail.superview)!.frame.maxY) + keyboardSize.height) >= maxheightScreen.size.height{
        if self.view.frame.origin.y == 0 {
            self.view.frame.origin.y -= (keyboardFrame.height - (self.txtEmail.frame.maxY + 120)) // Here i added 120 additional height for my additional view space
        }
    }
}

键盘将隐藏

@objc func keyboardWillHide(notification: NSNotification) {
    
    guard let keyboardSize = (notification.userInfo?[UIResponder.keyboardFrameEndUserInfoKey] as? NSValue)?.cgRectValue else {
        // if keyboard size is not available for some reason, don't do anything
        return
    }
    
    let keyboardFrame = keyboardSize
    
    if self.view.frame.origin.y != 0 {
        self.view.frame.origin.y += (keyboardFrame.height - (self.txtEmail.frame.maxY + 120))
    }
}

这是我使用自动布局的版本：

其想法是将包含文本字段/文本视图的视图嵌入UIScrollView中，从底部到其超级视图设置一个约束，创建一个出口，并使用通知根据键盘高度更新其常量。这是基于此处的Apple示例，以及此处使用AutoLayout的UIScrollView上的Apple技术说明。

1） 将视图V嵌入UIScrollView S：如果已经设置了常量和子视图，则可以在ViewController的视图中复制/粘贴视图和子视图；然后使用编辑器->嵌入菜单嵌入视图，最后删除复制的视图。）

2） 设置以下约束：

S到顶部布局指南：0S至底部布局指南：0通向超级视图的S：0S尾随到超级视图：0V顶部空间到超级视图：0V底部空间到超级视图：0超级视图的V尾随空格：0超视图的V前导空格：0V等于S的宽度最新底部V子视图到超级视图：20

3） 从视图控制器的最新约束创建出口

4） 使用以下代码：

@property (weak, nonatomic) IBOutlet NSLayoutConstraint *bottomSpaceToContentView;

// ...

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view.

    // ...

    [[NSNotificationCenter defaultCenter] addObserver:self
                                             selector:@selector(keyboardWasShown:)
                                                 name:UIKeyboardDidShowNotification object:nil];

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

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

#pragma mark - Handle keyboard

// Called when the UIKeyboardDidShowNotification is sent.
- (void)keyboardWasShown:(NSNotification*)aNotification
{
    NSDictionary* info = [aNotification userInfo];
    CGSize kbSize = [[info objectForKey:UIKeyboardFrameBeginUserInfoKey] CGRectValue].size;

    self.bottomSpaceToContentView.constant = kBottomMargin + kbSize.height;
    [self.view layoutIfNeeded];
}

// Called when the UIKeyboardWillHideNotification is sent
- (void)keyboardWillBeHidden:(NSNotification*)aNotification
{
    self.bottomSpaceToContentView.constant = kBottomMargin;
    [self.view layoutIfNeeded];
}

哈哈，它起作用了！

这对我有用：

func setupKeyboardNotifications() {
    NSNotificationCenter.defaultCenter().addObserver(self, selector: Selector("keyboardWasShown:"), name: UIKeyboardDidShowNotification, object: nil)
    NSNotificationCenter.defaultCenter().addObserver(self, selector: Selector("keyboardWillBeHidden:"), name: UIKeyboardWillHideNotification, object: nil)
}

func keyboardWasShown(aNotification:NSNotification) {
    let info = aNotification.userInfo
    let infoNSValue = info![UIKeyboardFrameBeginUserInfoKey] as NSValue
    let kbSize = infoNSValue.CGRectValue().size
    UIView.beginAnimations(nil, context: nil)
    UIView.setAnimationDuration(0.3)
    var rect : CGRect = self.view.frame
    rect.size.height -= kbSize.height

    self.view.frame = rect
    UIView.commitAnimations()
}

func keyboardWillBeHidden(aNotification:NSNotification) {
    let info = aNotification.userInfo
    let infoNSValue = info![UIKeyboardFrameBeginUserInfoKey] as NSValue
    let kbSize = infoNSValue.CGRectValue().size
    UIView.beginAnimations(nil, context: nil)
    UIView.setAnimationDuration(0.3)
    var rect : CGRect = self.view.frame
    rect.size.height += kbSize.height
    self.view.frame = rect
    UIView.commitAnimations()
}

刚找到这个类：

https://github.com/OliverLetterer/SLScrollViewKeyboardSupport

到目前为止，它在iPhone上运行得很好，包括动画和正确的偏移。

要使用它，只需添加到viewDidLoad：

self.support = [[SLScrollViewKeyboardSupport alloc] initWithScrollView:self.scrollView];

添加我的5美分：）

我总是喜欢使用tableView作为inputTextField或scrollView。结合通知，您可以轻松管理此类行为。（注意，如果您在tableView中使用静态单元格，则这种行为将自动为您管理。）

// MARK: - Notifications
fileprivate func registerNotificaitions() {
    NotificationCenter.default.addObserver(self, selector: #selector(AddRemoteControlViewController.keyboardWillAppear(_:)),
                                           name: NSNotification.Name.UIKeyboardWillShow, object: nil)
    NotificationCenter.default.addObserver(self, selector: #selector(AddRemoteControlViewController.keyboardWillDisappear),
                                           name: NSNotification.Name.UIKeyboardWillHide, object: nil)
}

fileprivate func unregisterNotifications() {
    NotificationCenter.default.removeObserver(self)
}

@objc fileprivate func keyboardWillAppear(_ notification: Notification) {
    if let keyboardHeight = (notification.userInfo?[UIKeyboardFrameEndUserInfoKey] as? NSValue)?.cgRectValue.height {
        view.layoutIfNeeded()
        UIView.animate(withDuration: 0.3, animations: {
            let heightInset = keyboardHeight - self.addDeviceButton.frame.height
            self.tableView.contentInset = UIEdgeInsets(top: 0, left: 0, bottom: heightInset, right: 0)
            self.view.layoutIfNeeded()
        }, completion: nil)
    }
}

@objc fileprivate func keyboardWillDisappear() {
    view.layoutIfNeeded()
    UIView.animate(withDuration: 0.3, animations: {
        self.tableView.contentInset = UIEdgeInsets.zero
        self.view.layoutIfNeeded()
    }, completion: nil)
}

需要考虑的一件事是，您是否希望单独使用UITextField。我还没有遇到任何设计良好的iPhone应用程序在UITableViewCells之外实际使用UITextFields。

这将是一些额外的工作，但我建议您实现表视图中的所有数据条目视图。将UITextView添加到UITableViewCells。