Manually constrain bottomAnchor to match animation

mhoran · Dec 30, 2024 · e178939 · e178939
1 parent be85eda
commit e178939
Showing 1 changed file with 9 additions and 18 deletions.
diff --git a/modules/keyboard-avoiding-view/ios/KeyboardAvoidingView.swift b/modules/keyboard-avoiding-view/ios/KeyboardAvoidingView.swift
@@ -8,8 +8,11 @@ class KeyboardAvoidingView: ExpoView {
   private var scrollView: ScrollViewWrapper?
   private var animationInProgress = false
   private var measurerHasObserver = false
+  private var containerBottomAnchor: NSLayoutConstraint
 
   required init(appContext: AppContext? = nil) {
+    containerBottomAnchor = container.bottomAnchor.constraint(equalTo: bottomAnchor)
+
     super.init(appContext: appContext)
 
     addSubview(measurer)
@@ -30,7 +33,7 @@ class KeyboardAvoidingView: ExpoView {
       container.heightAnchor.constraint(equalTo: heightAnchor),
       container.leadingAnchor.constraint(equalTo: leadingAnchor),
       container.trailingAnchor.constraint(equalTo: trailingAnchor),
-      container.bottomAnchor.constraint(equalTo: keyboardLayoutGuide.topAnchor),
+      containerBottomAnchor,
     ])
 
     NotificationCenter.default.addObserver(
@@ -53,17 +56,6 @@ class KeyboardAvoidingView: ExpoView {
       name: UIResponder.keyboardWillHideNotification,
       object: nil
     )
-
-    NotificationCenter.default.addObserver(
-      self,
-      selector: #selector(keyboardDidHide),
-      name: UIResponder.keyboardDidHideNotification,
-      object: nil
-    )
-
-    if #available(iOS 17.0, *) {
-      keyboardLayoutGuide.usesBottomSafeArea = false
-    }
   }
 
   deinit {
@@ -73,7 +65,6 @@ class KeyboardAvoidingView: ExpoView {
   }
 
   @objc private func keyboardWillShow(_ notification: Notification) {
-    keyboardLayoutGuide.followsUndockedKeyboard = true
     updateInsets(notification)
   }
 
@@ -105,6 +96,8 @@ class KeyboardAvoidingView: ExpoView {
       withDuration: animationDuration, delay: 0.0, options: animationOptions,
       animations: {
         self.scrollView?.setInsetsFromKeyboardHeight(keyboardHeight)
+        self.containerBottomAnchor.constant = -keyboardHeight
+        self.container.layoutIfNeeded()
       },
       completion: { finished in
         self.animationInProgress = false
@@ -119,10 +112,6 @@ class KeyboardAvoidingView: ExpoView {
     updateInsets(notification, closing: true)
   }
 
-  @objc private func keyboardDidHide(_ notification: Notification) {
-    keyboardLayoutGuide.followsUndockedKeyboard = false
-  }
-
   @objc override public func observeValue(
     forKeyPath keyPath: String?,
     of object: Any?,
@@ -133,7 +122,9 @@ class KeyboardAvoidingView: ExpoView {
       if animationInProgress {
         return
       }
-      self.scrollView?.setInsetsFromKeyboardHeight(measurer.frame.height)
+      scrollView?.setInsetsFromKeyboardHeight(measurer.frame.height)
+      containerBottomAnchor.constant = measurer.frame.height
+      container.layoutIfNeeded()
     }
   }