feat(splash): 增加了启动页

android/app/src/main/res/drawable-v21/launch_background.xml

@@ -1,12 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
-<!-- Modify this file to customize your launch splash screen -->
 <layer-list xmlns:android="http://schemas.android.com/apk/res/android">
-    <item android:drawable="?android:colorBackground" />
-
-    <!-- You can insert your own image assets here -->
-    <!-- <item>
-        <bitmap
-            android:gravity="center"
-            android:src="@mipmap/launch_image" />
-    </item> -->
+    <item>
+        <bitmap android:gravity="fill" android:src="@drawable/background"/>
+    </item>
 </layer-list>

android/app/src/main/res/drawable/launch_background.xml

@@ -1,12 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
-<!-- Modify this file to customize your launch splash screen -->
 <layer-list xmlns:android="http://schemas.android.com/apk/res/android">
-    <item android:drawable="@android:color/white" />
-
-    <!-- You can insert your own image assets here -->
-    <!-- <item>
-        <bitmap
-            android:gravity="center"
-            android:src="@mipmap/launch_image" />
-    </item> -->
+    <item>
+        <bitmap android:gravity="fill" android:src="@drawable/background"/>
+    </item>
 </layer-list>

android/app/src/main/res/values-v31/styles.xml

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!-- Theme applied to the Android Window while the process is starting when the OS's Dark Mode setting is off -->
+    <style name="LaunchTheme" parent="@android:style/Theme.Light.NoTitleBar">
+        <item name="android:windowSplashScreenBackground">@drawable/launch_background</item>
+        <item name="android:forceDarkAllowed">false</item>
+        <item name="android:windowFullscreen">true</item>
+    </style>
+    <!-- Theme applied to the Android Window as soon as the process has started.
+         This theme determines the color of the Android Window while your
+         Flutter UI initializes, as well as behind your Flutter UI while its
+         running.
+         
+         This Theme is only used starting with V2 of Flutter's Android embedding. -->
+    <style name="NormalTheme" parent="@android:style/Theme.Light.NoTitleBar">
+        <item name="android:windowBackground">?android:colorBackground</item>
+    </style>
+</resources>

android/app/src/main/res/values/styles.xml

@@ -5,6 +5,8 @@
         <!-- Show a splash screen on the activity. Automatically removed when
              Flutter draws its first frame -->
         <item name="android:windowBackground">@drawable/launch_background</item>
+        <item name="android:forceDarkAllowed">false</item>
+        <item name="android:windowFullscreen">true</item>
     </style>
     <!-- Theme applied to the Android Window as soon as the process has started.
          This theme determines the color of the Android Window while your

ios/Runner/Assets.xcassets/BrandingImage.imageset/Contents.json

@@ -0,0 +1,23 @@
+{
+  "images" : [
+    {
+      "filename" : "BrandingImage.png",
+      "idiom" : "universal",
+      "scale" : "1x"
+    },
+    {
+      "filename" : "BrandingImage@2x.png",
+      "idiom" : "universal",
+      "scale" : "2x"
+    },
+    {
+      "filename" : "BrandingImage@3x.png",
+      "idiom" : "universal",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

ios/Runner/Assets.xcassets/LaunchBackground.imageset/Contents.json

@@ -0,0 +1,21 @@
+{
+  "images" : [
+    {
+      "filename" : "background.png",
+      "idiom" : "universal",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "universal",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "universal",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

ios/Runner/Assets.xcassets/LaunchImage.imageset/Contents.json

@@ -1,23 +1,23 @@
 {
   "images" : [
     {
-      "idiom" : "universal",
       "filename" : "LaunchImage.png",
+      "idiom" : "universal",
       "scale" : "1x"
     },
     {
-      "idiom" : "universal",
       "filename" : "LaunchImage@2x.png",
+      "idiom" : "universal",
       "scale" : "2x"
     },
     {
-      "idiom" : "universal",
       "filename" : "LaunchImage@3x.png",
+      "idiom" : "universal",
       "scale" : "3x"
     }
   ],
   "info" : {
-    "version" : 1,
-    "author" : "xcode"
+    "author" : "xcode",
+    "version" : 1
   }
 }

ios/Runner/Base.lproj/LaunchScreen.storyboard

@@ -16,13 +16,19 @@
                     <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
                         <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
                         <subviews>
-                            <imageView opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" image="LaunchImage" translatesAutoresizingMaskIntoConstraints="NO" id="YRO-k0-Ey4">
-                            </imageView>
+                            <imageView clipsSubviews="YES" userInteractionEnabled="NO" contentMode="scaleToFill" image="LaunchBackground" translatesAutoresizingMaskIntoConstraints="NO" id="tWc-Dq-wcI"/>
+                            <imageView opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" image="LaunchImage" translatesAutoresizingMaskIntoConstraints="NO" id="YRO-k0-Ey4"></imageView>
                         </subviews>
                         <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
                         <constraints>
-                            <constraint firstItem="YRO-k0-Ey4" firstAttribute="centerX" secondItem="Ze5-6b-2t3" secondAttribute="centerX" id="1a2-6s-vTC"/>
-                            <constraint firstItem="YRO-k0-Ey4" firstAttribute="centerY" secondItem="Ze5-6b-2t3" secondAttribute="centerY" id="4X2-HB-R7a"/>
+                            <constraint firstItem="YRO-k0-Ey4" firstAttribute="leading" secondItem="Ze5-6b-2t3" secondAttribute="leading" id="3T2-ad-Qdv"/>
+                            <constraint firstItem="tWc-Dq-wcI" firstAttribute="bottom" secondItem="Ze5-6b-2t3" secondAttribute="bottom" id="RPx-PI-7Xg"/>
+                            <constraint firstItem="tWc-Dq-wcI" firstAttribute="top" secondItem="Ze5-6b-2t3" secondAttribute="top" id="SdS-ul-q2q"/>
+                            <constraint firstAttribute="trailing" secondItem="tWc-Dq-wcI" secondAttribute="trailing" id="Swv-Gf-Rwn"/>
+                            <constraint firstAttribute="trailing" secondItem="YRO-k0-Ey4" secondAttribute="trailing" id="TQA-XW-tRk"/>
+                            <constraint firstItem="YRO-k0-Ey4" firstAttribute="bottom" secondItem="Ze5-6b-2t3" secondAttribute="bottom" id="duK-uY-Gun"/>
+                            <constraint firstItem="tWc-Dq-wcI" firstAttribute="leading" secondItem="Ze5-6b-2t3" secondAttribute="leading" id="kV7-tw-vXt"/>
+                            <constraint firstItem="YRO-k0-Ey4" firstAttribute="top" secondItem="Ze5-6b-2t3" secondAttribute="top" id="xPn-NY-SIU"/>
                         </constraints>
                     </view>
                 </viewController>
@@ -33,5 +39,6 @@
     </scenes>
     <resources>
         <image name="LaunchImage" width="168" height="185"/>
+        <image name="LaunchBackground" width="1" height="1"/>
     </resources>
 </document>

ios/Runner/Info.plist

@@ -43,5 +43,7 @@
 		</array>
 		<key>UIViewControllerBasedStatusBarAppearance</key>
 		<false/>
+		<key>UIStatusBarHidden</key>
+		<true/>
 	</dict>
 </plist>

lib/main.dart

@@ -1,5 +1,9 @@
 import 'package:flutter/material.dart';
 
+//import 'common/access_control_filter.dart';
+import 'package:flutter_native_splash/flutter_native_splash.dart'
+    if (dart.library.html) 'package:flutter_native_splash/flutter_native_splash_web.dart';
+
 // import 'package:flutter_localizations/flutter_localizations.dart';
 import 'app.dart';
 import 'life.dart';
@@ -7,9 +11,11 @@ import 'mine.dart';
 import 'news.dart';
 import 'router/router.dart';
 
-//import 'common/access_control_filter.dart';
-
-void main() => runApp(const Bistro());
+void main() {
+  WidgetsBinding widgetsBinding = WidgetsFlutterBinding.ensureInitialized();
+  FlutterNativeSplash.preserve(widgetsBinding: widgetsBinding);
+  runApp(const Bistro());
+}
 
 class Bistro extends StatelessWidget {
   const Bistro({Key? key}) : super(key: key);
@@ -64,7 +70,7 @@ class BistroFrame extends StatefulWidget {
 
 class _BistroFrameState extends State<BistroFrame> {
   late Widget _body;
-  int _index = 0;
+  int _index = 3;
 
   static const List<Map<String, dynamic>> _iconList = [
     {
@@ -92,9 +98,15 @@ class _BistroFrameState extends State<BistroFrame> {
     },
   ];
 
-  void initData() {
+  @override
+  initState() {
     //页面初始化时要干的事
+    super.initState();
 
+    initialization();
+  }
+
+  void initData() {
     _body = IndexedStack(
       children: <Widget>[
         const App(),
@@ -107,6 +119,20 @@ class _BistroFrameState extends State<BistroFrame> {
     );
   }
 
+  void initialization() async {
+    // This is where you can initialize the resources needed by your app while
+    // the splash screen is displayed.  Remove the following example because
+    // delaying the user experience is a bad design practice!
+    print('ready in 3...');
+    await Future.delayed(const Duration(seconds: 1));
+    print('ready in 2...');
+    await Future.delayed(const Duration(seconds: 1));
+    print('ready in 1...');
+    await Future.delayed(const Duration(seconds: 1));
+    print('go!');
+    FlutterNativeSplash.remove();
+  }
+
   @override
   Widget build(BuildContext context) {
     initData();

pubspec.lock

@@ -15,6 +15,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.7.2"
+  archive:
+    dependency: transitive
+    description:
+      name: archive
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "3.2.1"
   args:
     dependency: transitive
     description:
@@ -216,6 +223,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "0.5.0"
+  flutter_native_splash:
+    dependency: "direct main"
+    description:
+      name: flutter_native_splash
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.5"
   flutter_staggered_grid_view:
     dependency: "direct main"
     description:
@@ -261,6 +275,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "4.0.0"
+  image:
+    dependency: transitive
+    description:
+      name: image
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "3.1.3"
   js:
     dependency: transitive
     description:
@@ -393,7 +414,7 @@ packages:
       name: permission_handler
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "9.1.0"
+    version: "9.2.0"
   permission_handler_android:
     dependency: transitive
     description:
@@ -415,6 +436,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "3.7.0"
+  permission_handler_windows:
+    dependency: transitive
+    description:
+      name: permission_handler_windows
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.1.0"
   petitparser:
     dependency: transitive
     description:
@@ -616,6 +644,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.3.0"
+  universal_io:
+    dependency: transitive
+    description:
+      name: universal_io
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.4"
   vector_math:
     dependency: transitive
     description:

pubspec.yaml

@@ -52,9 +52,13 @@ dependencies:
   webview_flutter: ^2.8.0
   flutter_staggered_grid_view: ^0.6.1
   shared_preferences: ^2.0.13
+
+  # http
   dio: ^4.0.4
   dio_http_cache: ^0.3.0
 
+  # 启动页
+  flutter_native_splash: ^2.0.5
 
 dev_dependencies:
   flutter_test:
@@ -87,6 +91,7 @@ flutter:
     - res/assets/images/dololo.jpg
     - res/assets/images/big-dog.jpg
     - res/assets/images/fire.jpg
+    - res/assets/images/Splash.png
 
     # An image asset can refer to one or more resolution-specific "variants", see
     # https://flutter.dev/assets-and-images/#resolution-aware.
@@ -112,3 +117,87 @@ flutter:
     #
     # For details regarding fonts from package dependencies,
     # see https://flutter.dev/custom-fonts/#from-packages
+
+flutter_native_splash:
+  # This package generates native code to customize Flutter's default white native splash screen
+  # with background color and splash image.
+  # Customize the parameters below, and run the following command in the terminal:
+  # flutter pub run flutter_native_splash:create
+  # To restore Flutter's default white splash screen, run the following command in the terminal:
+  # flutter pub run flutter_native_splash:remove
+
+  # color or background_image is the only required parameter.  Use color to set the background
+  # of your splash screen to a solid color.  Use background_image to set the background of your
+  # splash screen to a png image.  This is useful for gradients. The image will be stretch to the
+  # size of the app. Only one parameter can be used, color and background_image cannot both be set.
+#  color: "#e1f5fe"
+  background_image: "res/assets/images/Splash.png"
+
+  # Optional parameters are listed below.  To enable a parameter, uncomment the line by removing
+  # the leading # character.
+
+  # The image parameter allows you to specify an image used in the splash screen.  It must be a
+  # png file and should be sized for 4x pixel density.
+#  image: assets/logo_lockup_flutter_vertical.png
+
+  # This property allows you to specify an image used as branding in the splash screen. It must be
+  # a png file. Currently, it is only supported for Android and iOS.
+  #branding: assets/dart.png
+
+  # Specify your branding image for dark mode.
+  #branding_dark: assets/dart_dark.png
+
+  # To position the branding image at the bottom of the screen you can use bottom, bottomRight,
+  # and bottomLeft. The default values is bottom if not specified or specified something else.
+  #
+  # Make sure this content mode value should not be similar to android_gravity value and
+  # ios_content_mode value.
+  #branding_mode: bottom
+
+  # The color_dark, background_image_dark, and image_dark are parameters that set the background
+  # and image when the device is in dark mode. If they are not specified, the app will use the
+  # parameters from above. If the image_dark parameter is specified, color_dark or
+  # background_image_dark must be specified.  color_dark and background_image_dark cannot both be
+  # set.
+#  color_dark: "#042a49"
+#  background_image_dark: "assets/dark-background.png"
+#  image_dark: assets/logo_lockup_flutter_vertical_wht.png
+
+  # The android, ios and web parameters can be used to disable generating a splash screen on a given
+  # platform.
+  #android: false
+  #ios: false
+  #web: false
+
+  # The position of the splash image can be set with android_gravity, ios_content_mode, and
+  # web_image_mode parameters.  All default to center.
+  #
+  # android_gravity can be one of the following Android Gravity (see
+  # https://developer.android.com/reference/android/view/Gravity): bottom, center,
+  # center_horizontal, center_vertical, clip_horizontal, clip_vertical, end, fill, fill_horizontal,
+  # fill_vertical, left, right, start, or top.
+  #android_gravity: center
+  #
+  # ios_content_mode can be one of the following iOS UIView.ContentMode (see
+  # https://developer.apple.com/documentation/uikit/uiview/contentmode): scaleToFill,
+  # scaleAspectFit, scaleAspectFill, center, top, bottom, left, right, topLeft, topRight,
+  # bottomLeft, or bottomRight.
+  #ios_content_mode: center
+  #
+  # web_image_mode can be one of the following modes: center, contain, stretch, and cover.
+  #web_image_mode: center
+
+  # To hide the notification bar, use the fullscreen parameter.  Has no affect in web since web
+  # has no notification bar.  Defaults to false.
+  # NOTE: Unlike Android, iOS will not automatically show the notification bar when the app loads.
+  #       To show the notification bar, add the following code to your Flutter app:
+  #       WidgetsFlutterBinding.ensureInitialized();
+  #       SystemChrome.setEnabledSystemUIOverlays([SystemUiOverlay.bottom, SystemUiOverlay.top]);
+  fullscreen: true
+
+  # If you have changed the name(s) of your info.plist file(s), you can specify the filename(s)
+  # with the info_plist_files parameter.  Remove only the # characters in the three lines below,
+  # do not remove any spaces:
+  #info_plist_files:
+  #  - 'ios/Runner/Info-Debug.plist'
+  #  - 'ios/Runner/Info-Release.plist'

web/index.html

@@ -31,6 +31,9 @@
 
   <title>bistro</title>
   <link rel="manifest" href="manifest.json">
+  <script src="splash/splash.js"></script>
+  <meta content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no" name="viewport"/>
+  <link rel="stylesheet" type="text/css" href="splash/style.css">
 </head>
 <body>
   <!-- This script installs service_worker.js to provide PWA functionality to

web/splash/splash.js

@@ -0,0 +1,7 @@
+function removeSplashFromWeb() {
+  const elem = document.getElementById("splash");
+  if (elem) {
+    elem.remove();
+  }
+  document.body.style.background = "transparent";
+}

web/splash/style.css

@@ -0,0 +1,43 @@
+body {
+  margin:0;
+  height:100%;
+  background: #000000;
+  background-image: url("img/light-background.png");
+  background-size: 100% 100%;
+}
+
+.center {
+  margin: 0;
+  position: absolute;
+  top: 50%;
+  left: 50%;
+  -ms-transform: translate(-50%, -50%);
+  transform: translate(-50%, -50%);
+}
+
+.contain {
+  display:block;
+  width:100%; height:100%;
+  object-fit: contain;
+}
+
+.stretch {
+  display:block;
+  width:100%; height:100%;
+}
+
+.cover {
+  display:block;
+  width:100%; height:100%;
+  object-fit: cover;
+}
+
+@media (prefers-color-scheme: dark) {
+  body {
+    margin:0;
+    height:100%;
+    background: #000000;
+    background-image: url("img/dark-background.png");
+    background-size: 100% 100%;
+  }
+}