[rfw] Replace deprecated textScaleFactor (#6130)

Replaces the deprecated `textScaleFactor` with a linear `TextScaler`.

Updates the minimum deployment version to 3.16 where the new API was added.

Part of https://github.com/flutter/flutter/issues/143400

packages/rfw/CHANGELOG.md

@@ -1,3 +1,7 @@
+## 1.0.23
+
+* Replaces usage of deprecated Flutter APIs.
+
 ## 1.0.22
 
 * Adds more testing to restore coverage to 100%.

packages/rfw/example/hello/pubspec.yaml

@@ -4,8 +4,8 @@ publish_to: 'none' # Remove this line if you wish to publish to pub.dev
 version: 1.0.0+1
 
 environment:
-  sdk: ">=3.0.0 <4.0.0"
-  flutter: ">=3.10.0"
+  sdk: ^3.2.0
+  flutter: ">=3.16.0"
 
 dependencies:
   flutter:

packages/rfw/example/local/pubspec.yaml

@@ -4,8 +4,8 @@ publish_to: 'none' # Remove this line if you wish to publish to pub.dev
 version: 1.0.0+1
 
 environment:
-  sdk: ">=3.0.0 <4.0.0"
-  flutter: ">=3.10.0"
+  sdk: ^3.2.0
+  flutter: ">=3.16.0"
 
 dependencies:
   flutter:

packages/rfw/example/remote/pubspec.yaml

@@ -4,8 +4,8 @@ publish_to: 'none' # Remove this line if you wish to publish to pub.dev
 version: 1.0.0+1
 
 environment:
-  sdk: ">=3.0.0 <4.0.0"
-  flutter: ">=3.10.0"
+  sdk: ^3.2.0
+  flutter: ">=3.16.0"
 
 dependencies:
   flutter:

packages/rfw/example/wasm/pubspec.yaml

@@ -4,8 +4,8 @@ publish_to: none # Remove this line if you wish to publish to pub.dev
 version: 1.0.0+1
 
 environment:
-  sdk: ">=3.0.0 <4.0.0"
-  flutter: ">=3.10.0"
+  sdk: ^3.2.0
+  flutter: ">=3.16.0"
 
 dependencies:
   flutter:

packages/rfw/lib/src/flutter/core_widgets.dart

@@ -649,6 +649,7 @@ Map<String, LocalWidgetBuilder> get _coreWidgetsDefinitions => <String, LocalWid
       }
       text = builder.toString();
     }
+    final double? textScaleFactor = source.v<double>(['textScaleFactor']);
     return Text(
       text,
       style: ArgumentDecoders.textStyle(source, ['style']),
@@ -658,7 +659,7 @@ Map<String, LocalWidgetBuilder> get _coreWidgetsDefinitions => <String, LocalWid
       locale: ArgumentDecoders.locale(source, ['locale']),
       softWrap: source.v<bool>(['softWrap']),
       overflow: ArgumentDecoders.enumValue<TextOverflow>(TextOverflow.values, source, ['overflow']),
-      textScaleFactor: source.v<double>(['textScaleFactor']),
+      textScaler: textScaleFactor == null ? null : TextScaler.linear(textScaleFactor),
       maxLines: source.v<int>(['maxLines']),
       semanticsLabel: source.v<String>(['semanticsLabel']),
       textWidthBasis: ArgumentDecoders.enumValue<TextWidthBasis>(TextWidthBasis.values, source, ['textWidthBasis']),

packages/rfw/pubspec.yaml

@@ -2,11 +2,11 @@ name: rfw
 description: "Remote Flutter widgets: a library for rendering declarative widget description files at runtime."
 repository: https://github.com/flutter/packages/tree/main/packages/rfw
 issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22p%3A+rfw%22
-version: 1.0.22
+version: 1.0.23
 
 environment:
-  sdk: ">=3.0.0 <4.0.0"
-  flutter: ">=3.10.0"
+  sdk: ^3.2.0
+  flutter: ">=3.16.0"
 
 dependencies:
   flutter:

packages/rfw/test_coverage/pubspec.yaml

@@ -4,7 +4,7 @@ version: 1.0.0
 publish_to: none
 
 environment:
-  sdk: ">=3.0.0 <4.0.0"
+  sdk: ^3.2.0
 
 dependencies:
   lcov_parser: 0.1.1