Set the font in the updateUIView method

Also, wrap becomeFirstResponder in async dispatch

This fixes issues when we’re updating the responder chain every time SwiftUI refreshes the view, which can have unpredictable side effects.

Author: AngeloStavrow

iOS/PostEditor/MultilineTextView.swift

@@ -17,17 +17,12 @@ private struct UITextViewWrapper: UIViewRepresentable {
         textField.delegate = context.coordinator
 
         textField.isEditable = true
-        textField.font = UIFont.preferredFont(forTextStyle: .body)
         textField.isSelectable = true
         textField.isUserInteractionEnabled = true
         textField.isScrollEnabled = false
         textField.backgroundColor = UIColor.clear
         textField.smartDashesType = .no
 
-        let font = textStyle
-        let fontMetrics = UIFontMetrics(forTextStyle: .largeTitle)
-        textField.font = fontMetrics.scaledFont(for: font)
-
         if nil != onDone {
             textField.returnKeyType = .next
         }
@@ -41,8 +36,14 @@ private struct UITextViewWrapper: UIViewRepresentable {
             uiView.text = self.text
         }
 
-        if uiView.window != nil, isEditing {
-            uiView.becomeFirstResponder()
+        let font = textStyle
+        let fontMetrics = UIFontMetrics(forTextStyle: .largeTitle)
+        uiView.font = fontMetrics.scaledFont(for: font)
+
+        if uiView.window != nil && isEditing {
+            DispatchQueue.main.async {
+                uiView.becomeFirstResponder()
+            }
         }
 
         UITextViewWrapper.recalculateHeight(view: uiView, result: $calculatedHeight)