增加导航，添加welcome按钮组

.gitignore

@@ -46,5 +46,8 @@ app.*.map.json
 /android/app/release
 
 .dart_tool
-.fvm
 .vscode
+
+# FVM Version Cache
+.fvm/
+.fvmrc

README.md

@@ -36,3 +36,8 @@ samples, guidance on mobile development, and a full API reference.
 - 在main中使用theme设置全局样式
 - 在padding中使用edgeinsets.symmetric设置水平间距
 - image中，使用fit Boxfit来设置宽高适配
+## 导航，布局
+- 从上到下，从左到右分析布局
+- 写布局前，先把结构列好，用函数拆分，用_bulid开头，表示私有布局函数
+- 在使用elevatedbutton时，使用style将样式还原，在外面套一层Container作为装饰，更方便配置
+- 使用Navigator.pushReplacement 替换路由

android/gradle/wrapper/gradle-wrapper.properties

@@ -3,4 +3,5 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=file:///D:/Gradle/.gradle/wrapper/dists/gradle-6.7-all.zip
+distributionUrl=file:///C:/Users/24811/.gradle/wrapper/dists/gradle-6.7-all.zip
+# distributionUrl=file:///D:/Gradle/.gradle/wrapper/dists/gradle-6.7-all.zip

lib/main.dart

@@ -1,6 +1,7 @@
 import 'package:flutter/material.dart';
 
-import 'pages/welcome.dart';
+import 'pages/splash.dart';
+
 
 void main() {
   runApp(const MyApp());
@@ -12,9 +13,11 @@ class MyApp extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     return MaterialApp(
-      home: const WelcomePage(),
+      home: const SplashPage(),
       debugShowCheckedModeBanner: false,
       theme: ThemeData(
+        //设置主题色
+        primarySwatch: Colors.orange,
         fontFamily: 'Poppins',
       ),
     );

lib/pages/splash.dart

@@ -1,6 +1,7 @@
 import 'package:flutter/material.dart';
 import '../common/app_colors.dart';
 import '../common/assets.dart';
+import '../pages/Welcome.dart';
 
 class SplashPage extends StatefulWidget {
   const SplashPage({Key? key}) : super(key: key);
@@ -30,6 +31,10 @@ class _SplashPageState extends State<SplashPage> {
 
     if (number == 0) {
       print('倒计时结束 ');
+      Navigator.push(context, MaterialPageRoute(builder: (context) {
+        return const WelcomePage();
+      }));
+    
     }
   }
 

lib/pages/welcome.dart

@@ -5,6 +5,55 @@ import '../common/assets.dart';
 class WelcomePage extends StatelessWidget {
   const WelcomePage({Key? key}) : super(key: key);
 
+  //按钮组
+  Widget _bulidBtns() {
+    return Padding(
+      padding: const EdgeInsets.symmetric(horizontal: 20),
+      child: Row(
+        children: [
+          //skip按钮
+          TextButton(
+            onPressed: () {},
+            child: const Text('Skip',
+                style: TextStyle(
+                  fontSize: 15,
+                  color: Color(0xff2B2A2A),
+                  fontWeight: FontWeight.w300,
+                )),
+          ),
+
+          //弹开
+          const Spacer(),
+
+          //getstarted按钮
+          //套一层Container，可以做很多事，比如设置尺寸
+          Container(
+            height: 42,
+            width: 139,
+            //需要裁切，不然没有圆角
+            clipBehavior: Clip.antiAlias,
+            decoration: BoxDecoration(
+              borderRadius: BorderRadius.circular(32),
+            ),
+            child: ElevatedButton(
+              onPressed: (() {}),
+              style: ButtonStyle(
+                  elevation: MaterialStateProperty.all(0),
+                  //设置最小值为0，是的尺寸为children尺寸
+                  minimumSize: MaterialStateProperty.all(Size.zero)),
+              child: const Text('Get Started',
+                  style: TextStyle(
+                    fontSize: 16,
+                    color: Colors.white,
+                    fontWeight: FontWeight.w300,
+                  )),
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+
   Padding _bulidText() {
     return const Padding(
       padding: EdgeInsets.symmetric(horizontal: 38),
@@ -36,11 +85,13 @@ class WelcomePage extends StatelessWidget {
             height: 300,
             //宽撑满
             width: double.infinity,
-
             fit: BoxFit.fitWidth),
 
+        const SizedBox(
+          height: 70,
+        ),
         //按钮组
-        Container(),
+        _bulidBtns(),
 
         //end
       ],

pubspec.lock

@@ -5,56 +5,56 @@ packages:
     dependency: transitive
     description:
       name: async
-      url: "https://mirrors.tuna.tsinghua.edu.cn/dart-pub/"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.8.2"
   boolean_selector:
     dependency: transitive
     description:
       name: boolean_selector
-      url: "https://mirrors.tuna.tsinghua.edu.cn/dart-pub/"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.0"
   characters:
     dependency: transitive
     description:
       name: characters
-      url: "https://mirrors.tuna.tsinghua.edu.cn/dart-pub/"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.2.0"
   charcode:
     dependency: transitive
     description:
       name: charcode
-      url: "https://mirrors.tuna.tsinghua.edu.cn/dart-pub/"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.3.1"
   clock:
     dependency: transitive
     description:
       name: clock
-      url: "https://mirrors.tuna.tsinghua.edu.cn/dart-pub/"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.1.0"
   collection:
     dependency: transitive
     description:
       name: collection
-      url: "https://mirrors.tuna.tsinghua.edu.cn/dart-pub/"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.15.0"
   cupertino_icons:
     dependency: "direct main"
     description:
       name: cupertino_icons
-      url: "https://mirrors.tuna.tsinghua.edu.cn/dart-pub/"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.0.5"
+    version: "1.0.4"
   fake_async:
     dependency: transitive
     description:
       name: fake_async
-      url: "https://mirrors.tuna.tsinghua.edu.cn/dart-pub/"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.2.0"
   flutter:
@@ -66,7 +66,7 @@ packages:
     dependency: "direct dev"
     description:
       name: flutter_lints
-      url: "https://mirrors.tuna.tsinghua.edu.cn/dart-pub/"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.0.4"
   flutter_test:
@@ -78,35 +78,35 @@ packages:
     dependency: transitive
     description:
       name: lints
-      url: "https://mirrors.tuna.tsinghua.edu.cn/dart-pub/"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.0.1"
   matcher:
     dependency: transitive
     description:
       name: matcher
-      url: "https://mirrors.tuna.tsinghua.edu.cn/dart-pub/"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "0.12.11"
   material_color_utilities:
     dependency: transitive
     description:
       name: material_color_utilities
-      url: "https://mirrors.tuna.tsinghua.edu.cn/dart-pub/"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "0.1.3"
   meta:
     dependency: transitive
     description:
       name: meta
-      url: "https://mirrors.tuna.tsinghua.edu.cn/dart-pub/"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.7.0"
   path:
     dependency: transitive
     description:
       name: path
-      url: "https://mirrors.tuna.tsinghua.edu.cn/dart-pub/"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.8.0"
   sky_engine:
@@ -118,56 +118,56 @@ packages:
     dependency: transitive
     description:
       name: source_span
-      url: "https://mirrors.tuna.tsinghua.edu.cn/dart-pub/"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.8.1"
   stack_trace:
     dependency: transitive
     description:
       name: stack_trace
-      url: "https://mirrors.tuna.tsinghua.edu.cn/dart-pub/"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.10.0"
   stream_channel:
     dependency: transitive
     description:
       name: stream_channel
-      url: "https://mirrors.tuna.tsinghua.edu.cn/dart-pub/"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.0"
   string_scanner:
     dependency: transitive
     description:
       name: string_scanner
-      url: "https://mirrors.tuna.tsinghua.edu.cn/dart-pub/"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.1.0"
   term_glyph:
     dependency: transitive
     description:
       name: term_glyph
-      url: "https://mirrors.tuna.tsinghua.edu.cn/dart-pub/"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.2.0"
   test_api:
     dependency: transitive
     description:
       name: test_api
-      url: "https://mirrors.tuna.tsinghua.edu.cn/dart-pub/"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "0.4.8"
   typed_data:
     dependency: transitive
     description:
       name: typed_data
-      url: "https://mirrors.tuna.tsinghua.edu.cn/dart-pub/"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.3.0"
   vector_math:
     dependency: transitive
     description:
       name: vector_math
-      url: "https://mirrors.tuna.tsinghua.edu.cn/dart-pub/"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.1"
 sdks: