准备开始添加国际化

lib/main.dart

@@ -1,6 +1,7 @@
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 import 'package:todo_list/pages/main_page.dart';
+import 'package:flutter_localizations/flutter_localizations.dart';
 
 void main(){
   SystemChrome.setPreferredOrientations([
@@ -16,6 +17,22 @@ class MyApp extends StatelessWidget {
   Widget build(BuildContext context) {
     return MaterialApp(
       title: 'ToDo List',
+        localizationsDelegates: [
+          // ... app-specific localization delegate[s] here
+          GlobalMaterialLocalizations.delegate,
+          GlobalWidgetsLocalizations.delegate,
+        ],
+        supportedLocales: [
+          const Locale('en', 'US'), // 美国英语
+          const Locale('zh', 'CN'), // 中文简体
+        ],
+        localeResolutionCallback: (Locale locale, Iterable<Locale> supportedLocales){
+        },
+        localeListResolutionCallback: (List<Locale> locales, Iterable<Locale> supportedLocales){
+          debugPrint("locales:${locales}   supportedLocales${supportedLocales} ");
+
+        },
+        locale: Locale('en', 'US'),
       theme: ThemeData(
         primaryColor: Color.fromRGBO(246,200,200,1),
         primaryColorDark: Color.fromRGBO(255,180,180,1),

lib/pages/main_page.dart

@@ -6,7 +6,7 @@ import 'package:todo_list/items/task_item.dart';
 import 'package:todo_list/utils/full_screen_dialog_util.dart';
 import 'package:todo_list/widgets/floating_border.dart';
 import 'package:todo_list/widgets/bottom_show_widget.dart';
-import 'package:todo_list/widgets/scale_floating_button.dart';
+import 'package:todo_list/widgets/animated_floating_button.dart';
 import 'all_page.dart';
 
 class MainPage extends StatefulWidget {
@@ -39,7 +39,7 @@ class _MainPageState extends State<MainPage> {
       ),
       floatingActionButtonAnimator: FloatingActionButtonAnimator.scaling,
       floatingActionButtonLocation: FloatingActionButtonLocation.centerFloat,
-      floatingActionButton: ScaleFloatingButton(),
+      floatingActionButton: AnimatedFloatingButton(),
       body: Container(
         child: Column(
           crossAxisAlignment: CrossAxisAlignment.start,

lib/widgets/animated_floating_button.dart

@@ -5,12 +5,12 @@ import 'package:todo_list/utils/full_screen_dialog_util.dart';
 import 'package:todo_list/widgets/bottom_show_widget.dart';
 import 'package:todo_list/widgets/floating_border.dart';
 
-class ScaleFloatingButton extends StatefulWidget {
+class AnimatedFloatingButton extends StatefulWidget {
   @override
-  _ScaleFloatingButtonState createState() => _ScaleFloatingButtonState();
+  _AnimatedFloatingButtonState createState() => _AnimatedFloatingButtonState();
 }
 
-class _ScaleFloatingButtonState extends State<ScaleFloatingButton>
+class _AnimatedFloatingButtonState extends State<AnimatedFloatingButton>
     with SingleTickerProviderStateMixin {
   AnimationController _controller;
   Animation _animation;
@@ -19,7 +19,7 @@ class _ScaleFloatingButtonState extends State<ScaleFloatingButton>
   void initState() {
     _controller =
         AnimationController(vsync: this, duration: Duration(milliseconds: 500));
-    _animation = new Tween(begin: 1.0, end: 2.0)
+    _animation = new Tween(begin: 0.0, end: 1.0)
         .animate(CurvedAnimation(parent: _controller, curve: Curves.easeInOut));
     super.initState();
   }
@@ -35,12 +35,10 @@ class _ScaleFloatingButtonState extends State<ScaleFloatingButton>
     return AnimatedBuilder(
       animation: _animation,
       builder: (ctx, child) {
-        return Transform.rotate(
+        return Transform.translate(
-          angle: (1- _animation.value) * pi * 2,
+          offset: Offset(0, (_animation.value) * 56),
-            child: Transform.scale(
-          scale: _animation.value,
           child: child,
-        ));
+        );
       },
       child: FloatingActionButton(
         onPressed: () {

pubspec.yaml

@@ -19,6 +19,9 @@ environment:
 dependencies:
   flutter:
     sdk: flutter
+  #国际化
+  flutter_localizations:
+    sdk: flutter
 
   # The following adds the Cupertino Icons font to your application.
   # Use with the CupertinoIcons class for iOS style icons.
@@ -27,6 +30,8 @@ dependencies:
 dev_dependencies:
   flutter_test:
     sdk: flutter
+  #intl语言包
+#  intl_translation: ^0.17.5
 
 
   #网络请求
@@ -42,7 +47,9 @@ dev_dependencies:
   #滑动控件
   carousel_slider: ^1.3.0
   #环形列表
-  circle_list: ^0.0.6
+  circle_list: ^0.0.7
+  #intl语言包
+#  intl: ^0.15.8