我希望你们读了这些已经找到了答案。但我找到了我的解决方案如下。我期待你已经有一个单元与UITextField。在准备时，保持行索引到文本字段的标签中。

cell.textField.tag = IndexPath.row;

创建一个activeTextField, UITextField实例的全局作用域如下所示:

@interface EditViewController (){

    UITextField *activeTextField;

}

现在你只需要在最后复制粘贴我的代码。别忘了添加UITextFieldDelegate

#pragma mark - TextField Delegation

- (BOOL)textFieldShouldBeginEditing:(UITextField *)textField{

    activeTextField = textField;

    return YES;
}

- (void)textFieldDidEndEditing:(UITextField *)textField{

    activeTextField = nil;

}

注册键盘通知

#pragma mark - Keyboard Activity

- (void)registerForKeyboardNotifications

{

    [[NSNotificationCenter defaultCenter] addObserver:self

                                         selector:@selector(keyboardWasShown:)

                                             name:UIKeyboardDidShowNotification object:nil];



    [[NSNotificationCenter defaultCenter] addObserver:self

                                         selector:@selector(keyboardWillBeHidden:)

                                             name:UIKeyboardWillHideNotification object:nil];



}

处理键盘通知:

当发送UIKeyboardDidShowNotification时调用。

- (void)keyboardWasShown:(NSNotification*)aNotification

{

    NSDictionary* info = [aNotification userInfo];

    CGSize kbSize = [[info objectForKey:UIKeyboardFrameBeginUserInfoKey] CGRectValue].size;

    UIEdgeInsets contentInsets = UIEdgeInsetsMake(0.0, 0.0, kbSize.height, 0.0);

    [self.tableView setContentInset:contentInsets];

    [self.tableView setScrollIndicatorInsets:contentInsets];

    NSIndexPath *currentRowIndex = [NSIndexPath indexPathForRow:activeTextField.tag inSection:0];

    [self.tableView scrollToRowAtIndexPath:currentRowIndex atScrollPosition:UITableViewScrollPositionTop animated:YES];

}

当UIKeyboardWillHideNotification被发送时调用

- (void)keyboardWillBeHidden:(NSNotification*)aNotification

{

    UIEdgeInsets contentInsets = UIEdgeInsetsZero;

    [self.tableView setContentInset:contentInsets];

    [self.tableView setScrollIndicatorInsets:contentInsets];

}

现在还剩下一件事，在ViewDidLoad方法中调用registerForKeyboardNotifications方法，如下所示:

- (void)viewDidLoad {

    [super viewDidLoad];

    // Registering keyboard notification

    [self registerForKeyboardNotifications];

    // Your codes here...

}

你完成了，希望你的文本字段将不再隐藏在键盘。

我刚刚再次查看了iOS 5.0库参考，发现这一节题为“移动位于键盘下的内容”:TextAndWebiPhoneOS KeyboardManagement

这是iOS 5之后的新功能吗?我还没有深入了解它，因为我正在做其他事情，但也许其他人知道得更多，可以启发我和其他人。

苹果文档是否会取代这里讨论的内容，或者这里的信息对iOS 5 SDK用户仍然有用?

如果你的UITableView是由UITableViewController的子类管理的，而不是UITableView，并且文本字段委托是UITableViewController，它应该自动管理所有的滚动——所有这些其他注释在实践中是很难实现的。

有关一个好例子，请参阅apple示例代码项目:TaggedLocations。

你可以看到它自动滚动，但似乎没有任何代码做到这一点。该项目还具有自定义表视图单元格，因此，如果使用它作为指南构建应用程序，应该会得到预期的结果。

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) })}
}

如果你使用uitableview来放置你的文本字段(来自Jeff Lamarche)，你可以像这样使用委托方法滚动tableview。

(注意:我的文本字段存储在一个数组中，索引与表视图中的行相同)

- (void) textFieldDidBeginEditing:(UITextField *)textField
    {

        int index;
        for(UITextField *aField in textFields){

            if (textField == aField){
                index = [textFields indexOfObject:aField]-1;
            }
        }

         if(index >= 0) 
            [self.tableView scrollToRowAtIndexPath:[NSIndexPath indexPathForRow:index inSection:0] atScrollPosition:UITableViewScrollPositionTop animated:YES];

        [super textFieldDidBeginEditing:textField];
    }

基于bartjomiej semazynk解决方案的Swift 3最简单的解决方案:

override func viewDidLoad() {
    super.viewDidLoad()

    NotificationCenter.default.addObserver(self, selector: #selector(CreateEditRitualViewController.keyboardWillShow(notification:)), name: NSNotification.Name.UIKeyboardDidShow, object: nil)
    NotificationCenter.default.addObserver(self, selector: #selector(CreateEditRitualViewController.keyboardWillHide(notification:)), name: NSNotification.Name.UIKeyboardDidHide, object: nil)
}

deinit {
    NotificationCenter.default.removeObserver(self)
}

// MARK: Keyboard Notifications

@objc func keyboardWillShow(notification: NSNotification) {
    if let keyboardHeight = (notification.userInfo?[UIKeyboardFrameEndUserInfoKey] as? NSValue)?.cgRectValue.height {
        tableView.contentInset = UIEdgeInsetsMake(0, 0, keyboardHeight, 0)
    }
}

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