编辑页键盘增加完成按钮

Note/ClipEditViewController.swift

@@ -29,6 +29,41 @@ class ClipEditViewController: UIViewController {
 
         setupNavigationBar()
         setupTextView()
+        setupKeyboardObservers()
+    }
+
+    deinit {
+        NotificationCenter.default.removeObserver(self)
+    }
+
+    private func setupKeyboardObservers() {
+        NotificationCenter.default.addObserver(self, selector: #selector(keyboardWillShow(_:)), name: UIResponder.keyboardWillShowNotification, object: nil)
+        NotificationCenter.default.addObserver(self, selector: #selector(keyboardWillHide(_:)), name: UIResponder.keyboardWillHideNotification, object: nil)
+    }
+
+    @objc private func keyboardWillShow(_ notification: Notification) {
+        guard let keyboardFrame = notification.userInfo?[UIResponder.keyboardFrameEndUserInfoKey] as? CGRect else { return }
+        let keyboardFrameInView = view.convert(keyboardFrame, from: nil)
+        let intersection = keyboardFrameInView.intersection(view.bounds)
+        let keyboardHeight = intersection.height
+
+        let duration = notification.userInfo?[UIResponder.keyboardAnimationDurationUserInfoKey] as? TimeInterval ?? 0.25
+
+        UIView.animate(withDuration: duration, delay: 0, options: .beginFromCurrentState) {
+            self.textView.contentInset.bottom = keyboardHeight
+            self.textView.verticalScrollIndicatorInsets.bottom = keyboardHeight
+            self.view.layoutIfNeeded()
+        }
+    }
+
+    @objc private func keyboardWillHide(_ notification: Notification) {
+        let duration = notification.userInfo?[UIResponder.keyboardAnimationDurationUserInfoKey] as? TimeInterval ?? 0.25
+
+        UIView.animate(withDuration: duration, delay: 0, options: .beginFromCurrentState) {
+            self.textView.contentInset.bottom = 0
+            self.textView.verticalScrollIndicatorInsets.bottom = 0
+            self.view.layoutIfNeeded()
+        }
     }
 
     override func viewDidAppear(_ animated: Bool) {
@@ -59,6 +94,7 @@ class ClipEditViewController: UIViewController {
         textView.font = UIFont.preferredFont(forTextStyle: .body)
         textView.textContainerInset = UIEdgeInsets(top: 12, left: 12, bottom: 12, right: 12)
         textView.text = clip.text
+        textView.inputAccessoryView = createInputAccessoryView()
         view.addSubview(textView)
 
         let safeArea = view.safeAreaLayoutGuide
@@ -70,6 +106,22 @@ class ClipEditViewController: UIViewController {
         ])
     }
 
+    private func createInputAccessoryView() -> UIToolbar {
+        let toolbar = UIToolbar(frame: CGRect(x: 0, y: 0, width: view.bounds.width, height: 44))
+        toolbar.barStyle = .default
+        toolbar.isTranslucent = true
+
+        let flexSpace = UIBarButtonItem(barButtonSystemItem: .flexibleSpace, target: nil, action: nil)
+        let doneButton = UIBarButtonItem(title: "完成", style: .done, target: self, action: #selector(didTapKeyboardDoneButton))
+        toolbar.items = [flexSpace, doneButton]
+        toolbar.sizeToFit()
+        return toolbar
+    }
+
+    @objc private func didTapKeyboardDoneButton() {
+        textView.resignFirstResponder()
+    }
+
     @objc private func didTapSaveButton() {
         let updatedText = textView.text ?? ""
         guard !updatedText.trimmingCharacters(in: .whitespacesAndNewlines).isEmpty else {