ios - 隐藏 iOS 自定义键盘上的键盘快捷键栏

Question

我正在尝试构建一个自定义键盘，供许多应用程序通用。我想隐藏键盘快捷键栏，但我很难做到这一点。到目前为止，我在论坛上看到的所有帖子都提到使用 inputAssistantItem.leadingBarButtonGroups.removeAll() 或 inputAssistantItem.leadingBarButtonGroups = [] 与文本字段。

但是，由于我想在一般情况下使用它而不是仅在我自己的应用程序中使用，因此我无法访问文本字段。

我尝试将它与如下所示的 View 一起使用，但显然不起作用。我已经尝试了很多变化，现在我完全困惑了。

这是我的代码片段:

import UIKit

class KeyboardViewController: UIInputViewController {
    @IBOutlet var nextKeyboardButton: UIButton!

    override func viewDidLoad() {
        super.viewDidLoad()

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

        //get rid of top bar of keyboard
        view.inputAssistantItem.leadingBarButtonGroups = []
        view.inputAssistantItem.trailingBarButtonGroups = []

Answer 1

为自定义 View 创建自定义输入 View

方法:

• 创建绿色输入 View
• 创建红色 View
• 当红色 View 成为第一响应者时，绿色 View 应该显示

代码:

绿色输入 View :

import UIKit

class GreenInputView : UIView {

    //MARK: Initializers

    override init(frame: CGRect) {
        super.init(frame: frame)

        setup()
    }

    required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)

        setup()
    }

    //MARK: Setup

    private func setup() {

        backgroundColor = .green

        heightAnchor.constraint(equalToConstant: 200).isActive = true
    }
}

红色 View :

import UIKit

class RedView : UIView {

    private let greenInputView = GreenInputView()

    //MARK: Initializers

    override init(frame: CGRect) {
        super.init(frame: frame)

        setup()
    }

    required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)

        setup()
    }

    //MARK: Setup

    private func setup() {

        setupBase()
        setupGreenInputView()
    }

    private func setupBase() {

        backgroundColor = .red
    }

    private func setupGreenInputView() {
        greenInputView.translatesAutoresizingMaskIntoConstraints = false
    }

    override var canBecomeFirstResponder: Bool {
        return true
    }

    override var inputView: UIView? {
        return greenInputView
    }
}

View Controller :

import UIKit

class ViewController: UIViewController {

    private let redView = RedView()

    override func viewDidLoad() {
        super.viewDidLoad()

        setupRedView()
    }

    private func setupRedView() {

        view.addSubview(redView)

        redView.translatesAutoresizingMaskIntoConstraints = false

        redView.centerXAnchor.constraint(equalTo: view.centerXAnchor).isActive = true
        redView.centerYAnchor.constraint(equalTo: view.centerYAnchor).isActive = true
        redView.widthAnchor.constraint(equalToConstant: 100).isActive = true
        redView.heightAnchor.constraint(equalToConstant: 100).isActive = true
    }

    override func viewDidAppear(_ animated: Bool) {
        super.viewDidAppear(animated)

        redView.becomeFirstResponder()
    }
}

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