添加键盘上方浮动完成按钮

Note/FormatLogViewController.swift

@@ -11,6 +11,8 @@ class FormatLogViewController: UIViewController {
 
     private var textView: UITextView!
     private var formatButton: UIButton!
+    private var floatingDoneButton: UIButton!
+    private var floatingDoneButtonBottomConstraint: NSLayoutConstraint!
     private var doneButton: UIBarButtonItem!
     private var pasteButton: UIBarButtonItem!
     private var resetButton: UIBarButtonItem!
@@ -65,7 +67,28 @@ class FormatLogViewController: UIViewController {
         formatButton.addTarget(self, action: #selector(didTapFormatButton), for: .touchUpInside)
         view.addSubview(formatButton)
 
+        var doneConfig = UIButton.Configuration.glass()
+        doneConfig.title = "完成"
+        doneConfig.titleTextAttributesTransformer = UIConfigurationTextAttributesTransformer { incoming in
+            var outgoing = incoming
+            outgoing.font = UIFont.systemFont(ofSize: 17, weight: .semibold)
+            return outgoing
+        }
+        doneConfig.baseForegroundColor = .label
+        doneConfig.cornerStyle = .capsule
+        doneConfig.contentInsets = NSDirectionalEdgeInsets(top: 15, leading: 22, bottom: 15, trailing: 22)
+        floatingDoneButton = UIButton(configuration: doneConfig)
+        floatingDoneButton.translatesAutoresizingMaskIntoConstraints = false
+        floatingDoneButton.alpha = 0
+        floatingDoneButton.addTarget(self, action: #selector(didTapFloatingDoneButton), for: .touchUpInside)
+        view.addSubview(floatingDoneButton)
+
+        floatingDoneButtonBottomConstraint = floatingDoneButton.bottomAnchor.constraint(equalTo: view.bottomAnchor, constant: -16)
+
         NSLayoutConstraint.activate([
+            floatingDoneButton.trailingAnchor.constraint(equalTo: view.safeAreaLayoutGuide.trailingAnchor, constant: -16),
+            floatingDoneButtonBottomConstraint,
+
             textView.topAnchor.constraint(equalTo: view.safeAreaLayoutGuide.topAnchor, constant: 16),
             textView.leadingAnchor.constraint(equalTo: view.leadingAnchor, constant: 16),
             textView.trailingAnchor.constraint(equalTo: view.trailingAnchor, constant: -16),
@@ -82,6 +105,10 @@ class FormatLogViewController: UIViewController {
         textView.resignFirstResponder()
     }
 
+    @objc private func didTapFloatingDoneButton() {
+        textView.resignFirstResponder()
+    }
+
     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)
@@ -98,6 +125,9 @@ class FormatLogViewController: UIViewController {
         UIView.animate(withDuration: duration, delay: 0, options: .beginFromCurrentState) {
             self.textView.contentInset.bottom = keyboardHeight
             self.textView.verticalScrollIndicatorInsets.bottom = keyboardHeight
+            self.floatingDoneButtonBottomConstraint.constant = -(keyboardHeight + 8)
+            self.floatingDoneButton.alpha = 1
+            self.view.layoutIfNeeded()
         }
     }
 
@@ -107,6 +137,9 @@ class FormatLogViewController: UIViewController {
         UIView.animate(withDuration: duration, delay: 0, options: .beginFromCurrentState) {
             self.textView.contentInset.bottom = 0
             self.textView.verticalScrollIndicatorInsets.bottom = 0
+            self.floatingDoneButtonBottomConstraint.constant = -16
+            self.floatingDoneButton.alpha = 0
+            self.view.layoutIfNeeded()
         }
     }
 

Note/FormatNoteViewController.swift

@@ -12,6 +12,8 @@ class FormatNoteViewController: UIViewController {
     private var textView: UITextView!
     private var iCloudButton: UIButton!
     private var noteButton: UIButton!
+    private var floatingDoneButton: UIButton!
+    private var floatingDoneButtonBottomConstraint: NSLayoutConstraint!
     private var doneButton: UIBarButtonItem!
     private var pasteButton: UIBarButtonItem!
     private var resetButton: UIBarButtonItem!
@@ -66,10 +68,28 @@ class FormatNoteViewController: UIViewController {
         noteButton.addTarget(self, action: #selector(didTapNoteButton), for: .touchUpInside)
         view.addSubview(noteButton)
 
+        var doneConfig = UIButton.Configuration.glass()
+        doneConfig.title = "完成"
+        doneConfig.titleTextAttributesTransformer = UIConfigurationTextAttributesTransformer { incoming in
+            var outgoing = incoming
+            outgoing.font = UIFont.systemFont(ofSize: 17, weight: .semibold)
+            return outgoing
+        }
+        doneConfig.baseForegroundColor = .label
+        doneConfig.cornerStyle = .capsule
+        doneConfig.contentInsets = NSDirectionalEdgeInsets(top: 15, leading: 22, bottom: 15, trailing: 22)
+        floatingDoneButton = UIButton(configuration: doneConfig)
+        floatingDoneButton.translatesAutoresizingMaskIntoConstraints = false
+        floatingDoneButton.alpha = 0
+        floatingDoneButton.addTarget(self, action: #selector(didTapFloatingDoneButton), for: .touchUpInside)
+        view.addSubview(floatingDoneButton)
+
         let safeArea = view.safeAreaLayoutGuide
         let buttonHeight: CGFloat = 52
         let spacing: CGFloat = 16
 
+        floatingDoneButtonBottomConstraint = floatingDoneButton.bottomAnchor.constraint(equalTo: view.bottomAnchor, constant: -spacing)
+
         NSLayoutConstraint.activate([
             textView.topAnchor.constraint(equalTo: safeArea.topAnchor, constant: spacing),
             textView.leadingAnchor.constraint(equalTo: safeArea.leadingAnchor, constant: spacing),
@@ -85,7 +105,10 @@ class FormatNoteViewController: UIViewController {
             noteButton.leadingAnchor.constraint(equalTo: safeArea.centerXAnchor, constant: spacing / 2),
             noteButton.trailingAnchor.constraint(equalTo: safeArea.trailingAnchor, constant: -spacing),
             noteButton.heightAnchor.constraint(equalToConstant: buttonHeight),
-            noteButton.bottomAnchor.constraint(equalTo: safeArea.bottomAnchor, constant: -spacing)
+            noteButton.bottomAnchor.constraint(equalTo: safeArea.bottomAnchor, constant: -spacing),
+
+            floatingDoneButton.trailingAnchor.constraint(equalTo: safeArea.trailingAnchor, constant: -spacing),
+            floatingDoneButtonBottomConstraint
         ])
     }
 
@@ -106,6 +129,10 @@ class FormatNoteViewController: UIViewController {
         textView.resignFirstResponder()
     }
 
+    @objc private func didTapFloatingDoneButton() {
+        textView.resignFirstResponder()
+    }
+
     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)
@@ -122,6 +149,9 @@ class FormatNoteViewController: UIViewController {
         UIView.animate(withDuration: duration, delay: 0, options: .beginFromCurrentState) {
             self.textView.contentInset.bottom = keyboardHeight
             self.textView.verticalScrollIndicatorInsets.bottom = keyboardHeight
+            self.floatingDoneButtonBottomConstraint.constant = -(keyboardHeight + 8)
+            self.floatingDoneButton.alpha = 1
+            self.view.layoutIfNeeded()
         }
     }
 
@@ -131,6 +161,9 @@ class FormatNoteViewController: UIViewController {
         UIView.animate(withDuration: duration, delay: 0, options: .beginFromCurrentState) {
             self.textView.contentInset.bottom = 0
             self.textView.verticalScrollIndicatorInsets.bottom = 0
+            self.floatingDoneButtonBottomConstraint.constant = -16
+            self.floatingDoneButton.alpha = 0
+            self.view.layoutIfNeeded()
         }
     }