From 62d5e1ddd0f2e3917caaa573a58e4d9b4c5b6c37 Mon Sep 17 00:00:00 2001
From: Jorel Cruz <jkim@tdjasia.com>
Date: Thu, 19 Aug 2021 17:17:45 +0800
Subject: [PATCH 1/2]  - update Chips_input.dart    - Wrapped
 notificationListener with RawKeyboardListener to fix bug for android devices

---
 .../contents.xcworkspacedata                  |  2 +-
 lib/src/chips_input.dart                      | 71 +++++++++++--------
 2 files changed, 43 insertions(+), 30 deletions(-)

diff --git a/example/ios/Runner.xcodeproj/project.xcworkspace/contents.xcworkspacedata b/example/ios/Runner.xcodeproj/project.xcworkspace/contents.xcworkspacedata
index 1d526a16..919434a6 100644
--- a/example/ios/Runner.xcodeproj/project.xcworkspace/contents.xcworkspacedata
+++ b/example/ios/Runner.xcodeproj/project.xcworkspace/contents.xcworkspacedata
@@ -2,6 +2,6 @@
 <Workspace
    version = "1.0">
    <FileRef
-      location = "group:Runner.xcodeproj">
+      location = "self:">
    </FileRef>
 </Workspace>
diff --git a/lib/src/chips_input.dart b/lib/src/chips_input.dart
index 43f5bf87..9731f4b4 100644
--- a/lib/src/chips_input.dart
+++ b/lib/src/chips_input.dart
@@ -449,38 +449,51 @@ class ChipsInputState<T> extends State<ChipsInput<T>>
       ),
     );
 
-    return NotificationListener<SizeChangedLayoutNotification>(
-      onNotification: (SizeChangedLayoutNotification val) {
-        WidgetsBinding.instance?.addPostFrameCallback((_) async {
-          _suggestionsBoxController.overlayEntry?.markNeedsBuild();
-        });
-        return true;
+    return RawKeyboardListener(
+      focusNode: _focusNode, // or FocusNode()
+      onKey: (event) {
+        final str = currentTextEditingValue.text;
+        if (event.runtimeType.toString() == 'RawKeyDownEvent' &&
+            event.logicalKey == LogicalKeyboardKey.backspace &&
+            str.isNotEmpty) {
+          final sd = str.substring(0, str.length - 1);
+          updateEditingValue(TextEditingValue(
+              text: sd, selection: TextSelection.collapsed(offset: sd.length)));
+        }
       },
-      child: SizeChangedLayoutNotifier(
-        child: Column(
-          children: <Widget>[
-            GestureDetector(
-              behavior: HitTestBehavior.opaque,
-              onTap: () {
-                requestKeyboard();
-              },
-              child: InputDecorator(
-                decoration: widget.decoration,
-                isFocused: _focusNode.hasFocus,
-                isEmpty: _value.text.isEmpty && _chips.isEmpty,
-                child: Wrap(
-                  crossAxisAlignment: WrapCrossAlignment.center,
-                  spacing: 4.0,
-                  runSpacing: 4.0,
-                  children: chipsChildren,
+      child: NotificationListener<SizeChangedLayoutNotification>(
+        onNotification: (SizeChangedLayoutNotification val) {
+          WidgetsBinding.instance?.addPostFrameCallback((_) async {
+            _suggestionsBoxController.overlayEntry?.markNeedsBuild();
+          });
+          return true;
+        },
+        child: SizeChangedLayoutNotifier(
+          child: Column(
+            children: <Widget>[
+              GestureDetector(
+                behavior: HitTestBehavior.opaque,
+                onTap: () {
+                  requestKeyboard();
+                },
+                child: InputDecorator(
+                  decoration: widget.decoration,
+                  isFocused: _focusNode.hasFocus,
+                  isEmpty: _value.text.isEmpty && _chips.isEmpty,
+                  child: Wrap(
+                    crossAxisAlignment: WrapCrossAlignment.center,
+                    spacing: 4.0,
+                    runSpacing: 4.0,
+                    children: chipsChildren,
+                  ),
                 ),
               ),
-            ),
-            CompositedTransformTarget(
-              link: _layerLink,
-              child: Container(),
-            ),
-          ],
+              CompositedTransformTarget(
+                link: _layerLink,
+                child: Container(),
+              ),
+            ],
+          ),
         ),
       ),
     );

From 40eb1703492d5c55b37ca1907b6c34d25595e094 Mon Sep 17 00:00:00 2001
From: Jorel Cruz <jkim@tdjasia.com>
Date: Fri, 20 Aug 2021 11:06:45 +0800
Subject: [PATCH 2/2]  - update _updateTextInputState function 	- remove
 platform specific checking in composing parameter

---
 lib/src/chips_input.dart | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/lib/src/chips_input.dart b/lib/src/chips_input.dart
index 9731f4b4..9d90aaa3 100644
--- a/lib/src/chips_input.dart
+++ b/lib/src/chips_input.dart
@@ -349,17 +349,11 @@ class ChipsInputState<T> extends State<ChipsInput<T>>
             "${replaceText ? '' : _value.normalCharactersText}" +
             putText;
     setState(() {
-      final textLength = updatedText.characters.length;
-      final replacedLength = _chips.length;
+      final textLength = updatedText.length;
       _value = _value.copyWith(
         text: updatedText,
         selection: TextSelection.collapsed(offset: textLength),
-        composing: (Platform.isIOS || replacedLength == textLength)
-            ? TextRange.empty
-            : TextRange(
-                start: replacedLength,
-                end: textLength,
-              ),
+        composing: TextRange.empty,
       );
     });
     _textInputConnection ??= TextInput.attach(this, textInputConfiguration);