swift - 如何将自定义键盘设置为 UITextView 的默认键盘？

Question

我已经创建了自定义键盘并且它工作正常。但我不知道如何将我的自定义键盘设置为特定的 UITextField。这是我的 KeyboardViewController

import UIKit

class KeyboardViewController: UIInputViewController {

    @IBOutlet var nextKeyboardButton: UIButton!
    @IBOutlet weak var percentView: UIView!
    @IBOutlet weak var hideKeyboardButton: UIButton!

    override func updateViewConstraints() {
        super.updateViewConstraints()

        // Add custom view sizing constraints here
    }

    override func viewDidLoad() {
        super.viewDidLoad()

        // Perform custom UI setup here
        self.nextKeyboardButton = UIButton(type: .System)

        self.nextKeyboardButton.setTitle(NSLocalizedString("Next Keyboard", comment: "Title for 'Next Keyboard' button"), forState: .Normal)
        self.nextKeyboardButton.sizeToFit()
        self.nextKeyboardButton.translatesAutoresizingMaskIntoConstraints = false

        self.nextKeyboardButton.addTarget(self, action: "advanceToNextInputMode", forControlEvents: .TouchUpInside)

        self.view.addSubview(self.nextKeyboardButton)


        let nextKeyboardButtonLeftSideConstraint = NSLayoutConstraint(item: self.nextKeyboardButton, attribute: .Left, relatedBy: .Equal, toItem: self.view, attribute: .Left, multiplier: 1.0, constant: 0.0)
        let nextKeyboardButtonBottomConstraint = NSLayoutConstraint(item: self.nextKeyboardButton, attribute: .Bottom, relatedBy: .Equal, toItem: self.view, attribute: .Bottom, multiplier: 1.0, constant: 0.0)
        self.view.addConstraints([nextKeyboardButtonLeftSideConstraint, nextKeyboardButtonBottomConstraint])

        let nib = UINib(nibName: "KeyboardView", bundle: nil)
        let objects = nib.instantiateWithOwner(self, options: nil)
        view = objects[0] as! UIView;

        for view in self.view.subviews {
            if let btn = view as? UIButton {
                btn.layer.cornerRadius = 5.0
                btn.translatesAutoresizingMaskIntoConstraints = false
                //btn.addTarget(self, action: "keyPressed:", forControlEvents: .TouchUpInside)
            }
        }
    }

和其他委托(delegate)方法。那我怎么调用它呢？实际上问题是我无法从应用程序扩展中导入自定义键盘类。这是主要问题。我做了所有构建阶段的事情。如果我自己更换键盘，我可以使用键盘。

Answer 1

根据Apple Documentation

After a user chooses a custom keyboard, it becomes the keyboard for every app the user opens.

因此它不像您的应用程序特定的东西，它更像是不同语言的键盘。至于您不能为您的 UITextField 或 UITextView 指定某些特定语言的键盘，您也不能指定您的自定义键盘。

您确定在应用内输入数据时需要自定义键盘而不是自定义 View 吗？关于自定义数据输入 View 你可以阅读here .