这是我的 ymal 文件，
name: dtlive
description: A new Flutter project.
# The following line prevents the package from being accidentally published to
# pub.dev using `flutter pub publish`. This is preferred for private packages.
publish_to: 'none' # Remove this line if you wish to publish to pub.dev
# The following defines the version and build number for your application.
# A version number is three numbers separated by dots, like 1.2.43
# followed by an optional build number separated by a +.
# Both the version and the builder number may be overridden in flutter
# build by specifying --build-name and --build-number, respectively.
# In Android, build-name is used as versionName while build-number used as versionCode.
# Read more about Android versioning at https://developer.android.com/studio/publish/versioning
# In iOS, build-name is used as CFBundleShortVersionString while build-number used as CFBundleVersion.
# Read more about iOS versioning at
# https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html
version: 1.0.0+1
environment:
sdk: '>=3.1.3 <4.0.0'
flutter: ">=1.10.0"
# Dependencies specify other packages that your package needs in order to work.
# To automatically upgrade your package dependencies to the latest versions
# consider running `flutter pub upgrade --major-versions`. Alternatively,
# dependencies can be manually updated by changing the version numbers below to
# the latest version available on pub.dev. To see which dependencies have newer
# versions available, run `flutter pub outdated`.
dependencies:
flutter:
sdk: flutter
chewie:
path: packages/chewie/
vimeo_video_player:
path: packages/vimeo/
# The following adds the Cupertino Icons font to your application.
# Use with the CupertinoIcons class for iOS style icons.
cupertino_icons: ^1.0.3
google_fonts: ^4.0.0
buttons_tabbar: ^1.3.7
# Players
youtube_player_iframe: ^4.0.4
video_player: ^2.7.0
video_player_web_hls: ^1.0.0+3
subtitle_wrapper_package: ^2.1.1
# Players
# Payment Gateways
razorpay_web: ^1.3.5
paytm_allinonesdk: ^1.2.1
flutter_stripe: ^9.2.2
flutter_dotenv: ^5.1.0
http_auth: ^1.0.2
flutter_paypal: ^0.2.0
flutterwave_standard: ^1.0.4
uuid: ^4.0.0
payu_checkoutpro_flutter: ^1.0.4
pay_with_paystack: ^1.0.6
# Payment Gateways
# Firebase - OneSignal
sign_in_with_apple: ^5.0.0
crypto: ^3.0.3
google_sign_in: ^6.1.5
firebase_core: ^2.15.1
firebase_auth: ^4.9.0
firebase_auth_platform_interface: ^6.18.0
onesignal_flutter: ^5.0.0
firebase_messaging: ^14.6.7
google_mobile_ads: ^3.0.0
# Firebase - OneSignal
intl_phone_field: ^3.2.0
http: ^0.13.6
pinput: ^2.2.31
intl: ^0.18.0
flutter_locales: ^3.0.1
image_picker: ^1.0.0
fluttertoast: ^8.2.2
shared_preferences: ^2.0.15
smooth_page_indicator: ^1.1.0
percent_indicator: ^4.2.3
dio: ^5.2.1+1
pretty_dio_logger: ^1.3.1
provider: ^6.0.5
progress_dialog_null_safe: ^1.0.7
expandable_text: ^2.3.0
flutter_staggered_grid_view: ^0.6.2
expandable: ^5.0.1
flutter_inappwebview: ^5.7.2+3
flutter_html: ^3.0.0-alpha.3
url_launcher: ^6.1.11
bottom_navy_bar: ^6.0.0
shimmer: ^3.0.0
shimmer_animation: ^2.1.0+1
speech_to_text: ^6.1.1
avatar_glow: ^2.0.2
flutter_share: ^2.0.0
path_provider: ^2.0.15
path: ^1.8.2
html: ^0.15.4
social_share: ^2.3.1
cached_network_image: ^3.2.3
carousel_slider: ^4.2.1
carousel_indicator: ^1.0.6
scrollable_positioned_list: ^0.3.8
pull_to_refresh: ^2.0.0
permission_handler: ^10.4.1
responsive_framework: ^1.0.0
dropdown_button2: ^2.0.0
universal_html: ^2.0.9
js: ^0.6.5
responsive_grid_list: ^1.3.2
flutter_cors: ^1.4.0
device_info_plus: ^8.1.0
flutter_downloader: ^1.10.2
random_string: ^2.3.1
flutter_secure_storage: ^8.0.0
scrollview_observer: ^1.14.0
flutter_pagewise: ^2.0.4
connectivity_plus: ^4.0.1
marquee: ^2.2.3
numeral: ^2.0.1
gradient_borders: ^1.0.0
screen_protector: ^1.2.0
flutter_launcher_icons: ^0.13.1
change_app_package_name: ^1.1.0
flutter_native_splash: ^2.3.2
back_button_interceptor: ^7.0.0
dependency_overrides:
webview_flutter_wkwebview: '3.5.0'
flutter_launcher_icons:
android: "launcher_icon"
ios: true
image_path: "assets/images/launcher.png"
flutter_native_splash:
image: assets/images/appicon.png
color: "#0d0907"
android_12:
image: assets/images/appicon.png
color: "#0d0907"
dev_dependencies:
flutter_test:
sdk: flutter
# The "flutter_lints" package below contains a set of recommended lints to
# encourage good coding practices. /The lint set provided by the package is
# activated in the `analysis_options.yaml` file located at the root of your
# package. See that file for information about deactivating specific lint
# rules and activating additional ones.
flutter_lints: ^2.0.0
# For information on the generic Dart part of this file, see the
# following page: https://dart.dev/tools/pub/pubspec
# The following section is specific to Flutter packages.
flutter:
assets:
- assets/
- assets/images/
- assets/locales/en.json
- assets/locales/af.json
- assets/locales/ar.json
- assets/locales/de.json
- assets/locales/es.json
- assets/locales/fr.json
- assets/locales/gu.json
- assets/locales/hi.json
- assets/locales/id.json
- assets/locales/nl.json
- assets/locales/pt.json
- assets/locales/sq.json
- assets/locales/tr.json
- assets/locales/vi.json
# The following line ensures that the Material Icons font is
# included with your application, so that you can use the icons in
# the material Icons class.
uses-material-design: true
# To add assets to your application, add an assets section, like this:
# assets:
# - images/a_dot_burr.jpeg
# - images/a_dot_ham.jpeg
# An image asset can refer to one or more resolution-specific "variants", see
# https://flutter.dev/assets-and-images/#resolution-aware
# For details regarding adding assets from package dependencies, see
# https://flutter.dev/assets-and-images/#from-packages
# To add custom fonts to your application, add a fonts section here,
# in this "flutter" section. Each entry in this list should have a
# "family" key with the font family name, and a "fonts" key with a
# list giving the asset and other descriptors for the font. For
# example:
# fonts:
# - family: Schyler
# fonts:
# - asset: fonts/Schyler-Regular.ttf
# - asset: fonts/Schyler-Italic.ttf
# style: italic
# - family: Trajan Pro
# fonts:
# - asset: fonts/TrajanPro.ttf
# - asset: fonts/TrajanPro_Bold.ttf
# weight: 700
#
# For details regarding fonts from package dependencies,
# see https://flutter.dev/custom-fonts/#from-packages
这是我在 Main.dart 文件中的材质应用程序实现
@override
Widget build(BuildContext context) {
return Shortcuts(
shortcuts: <LogicalKeySet, Intent>{
LogicalKeySet(LogicalKeyboardKey.select): const ActivateIntent(),
LogicalKeySet(LogicalKeyboardKey.enter): const ActivateIntent(),
},
child: LocaleBuilder(
builder: (locale) => MaterialApp(
// navigatorKey: navigatorKey,
debugShowCheckedModeBanner: false,
navigatorObservers: [routeObserver], //HERE
theme: ThemeData(
primaryColor: colorPrimary,
primaryColorDark: colorPrimaryDark,
primaryColorLight: primaryLight,
scaffoldBackgroundColor: appBgColor,
).copyWith(
scrollbarTheme: const ScrollbarThemeData().copyWith(
thumbColor: MaterialStateProperty.all(white),
trackVisibility: MaterialStateProperty.all(true),
trackColor: MaterialStateProperty.all(whiteTransparent),
),
),
title: Constant.appName,
localizationsDelegates: Locales.delegates,
supportedLocales: Locales.supportedLocales,
locale: locale,
localeResolutionCallback:
(Locale? locale, Iterable<Locale> supportedLocales) {
return locale;
},
builder: (context, child) {
return ResponsiveBreakpoints.builder(
child: child!,
breakpoints: [
const Breakpoint(start: 0, end: 360, name: MOBILE),
const Breakpoint(start: 361, end: 800, name: TABLET),
const Breakpoint(start: 801, end: 1000, name: DESKTOP),
const Breakpoint(start: 1001, end: double.infinity, name: '4K'),
],
);
},
home: BottomBar(),
scrollBehavior: const MaterialScrollBehavior().copyWith(
dragDevices: {
PointerDeviceKind.mouse,
PointerDeviceKind.touch,
PointerDeviceKind.stylus,
PointerDeviceKind.unknown,
PointerDeviceKind.trackpad
},
),
),
),
);
final RouteObserver<ModalRoute<void>> routeObserver =
RouteObserver<ModalRoute<void>>();
final GlobalKey<NavigatorState> navigatorKey = GlobalKey<NavigatorState>();
这是底部栏的代码
import 'package:back_button_interceptor/back_button_interceptor.dart';
import 'package:dtlive/pages/channels.dart';
import 'package:dtlive/pages/find.dart';
import 'package:dtlive/pages/home.dart';
import 'package:dtlive/pages/setting.dart';
import 'package:dtlive/pages/rentstore.dart';
import 'package:dtlive/provider/generalprovider.dart';
import 'package:dtlive/provider/profileprovider.dart';
import 'package:dtlive/utils/adhelper.dart';
import 'package:dtlive/utils/color.dart';
import 'package:dtlive/utils/constant.dart';
import 'package:dtlive/utils/sharedpre.dart';
import 'package:dtlive/utils/strings.dart';
import 'package:dtlive/utils/utils.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:google_fonts/google_fonts.dart';
import 'package:provider/provider.dart';
class Bottombar extends StatefulWidget {
const Bottombar({Key? key}) : super(key: key);
@override
State<Bottombar> createState() => BottombarState();
}
class BottombarState extends State<Bottombar> {
int selectedIndex = 0;
DateTime? currentBackPressTime;
static List<Widget> widgetOptions = <Widget>[
const Home(
pageName: "",
key: Key("Home"),
),
const Find(
key: Key("Find"),
),
const Channels(
key: Key("Channels"),
),
const RentStore(
key: Key("Rent"),
),
const Setting(
key: Key("Settings"),
),
];
@override
void initState() {
super.initState();
}
void _onItemTapped(int index) {
setState(() {
selectedIndex = index;
});
}
@override
Widget build(BuildContext context) {
return WillPopScope(
onWillPop: onBackPressed,
child: Scaffold(
backgroundColor: Colors.white,
resizeToAvoidBottomInset: false,
body: IndexedStack(
index: selectedIndex,
children: widgetOptions,
),
bottomNavigationBar: BottomAppBar(
color: appBgColor,
padding: const EdgeInsets.fromLTRB(3, 5, 3, 5),
elevation: 5,
child: BottomNavigationBar(
backgroundColor: appBgColor,
selectedLabelStyle: GoogleFonts.montserrat(
fontSize: 10,
fontStyle: FontStyle.normal,
fontWeight: FontWeight.w500,
color: colorPrimary,
),
unselectedLabelStyle: GoogleFonts.montserrat(
fontSize: 10,
fontStyle: FontStyle.normal,
fontWeight: FontWeight.w500,
color: colorPrimary,
),
selectedFontSize: 12,
unselectedFontSize: 12,
elevation: 5,
currentIndex: selectedIndex,
unselectedItemColor: gray,
selectedItemColor: colorPrimary,
type: BottomNavigationBarType.fixed,
items: [
BottomNavigationBarItem(
backgroundColor: black,
label: bottomView1,
activeIcon: _buildBottomNavIcon(
iconName: 'ic_home', iconColor: colorPrimary),
icon: _buildBottomNavIcon(iconName: 'ic_home', iconColor: gray),
),
BottomNavigationBarItem(
backgroundColor: black,
label: bottomView2,
activeIcon: _buildBottomNavIcon(
iconName: 'ic_find', iconColor: colorPrimary),
icon: _buildBottomNavIcon(iconName: 'ic_find', iconColor: gray),
),
BottomNavigationBarItem(
backgroundColor: black,
label: bottomView3,
activeIcon: _buildBottomNavIcon(
iconName: 'ic_channels', iconColor: colorPrimary),
icon: _buildBottomNavIcon(
iconName: 'ic_channels', iconColor: gray),
),
BottomNavigationBarItem(
backgroundColor: black,
label: bottomView4,
activeIcon: _buildBottomNavIcon(
iconName: 'ic_store', iconColor: colorPrimary),
icon:
_buildBottomNavIcon(iconName: 'ic_store', iconColor: gray),
),
BottomNavigationBarItem(
backgroundColor: black,
label: bottomView5,
activeIcon: _buildBottomNavIcon(
iconName: 'ic_stuff', iconColor: colorPrimary),
icon:
_buildBottomNavIcon(iconName: 'ic_stuff', iconColor: gray),
),
],
onTap: _onItemTapped,
),
),
),
);
}
Widget _buildBottomNavIcon(
{required String iconName, required Color? iconColor}) {
return Align(
alignment: Alignment.center,
child: Padding(
padding: const EdgeInsets.all(7),
child: Image.asset(
"assets/images/$iconName.png",
width: 22,
height: 22,
color: iconColor,
),
),
);
}
Future<bool> onBackPressed() async {
if (selectedIndex == 0) {
DateTime now = DateTime.now();
if (currentBackPressTime == null ||
now.difference(currentBackPressTime!) > const Duration(seconds: 2)) {
currentBackPressTime = now;
Utils.showSnackbar(context, "", "exit_warning", true);
return Future.value(false);
}
SystemNavigator.pop();
return Future.value(true);
} else {
_onItemTapped(0);
return Future.value(false);
}
}
}
我不知道，但在每个小部件上，应用程序的默认后按都会最小化应用程序。 它没有在任何页面中调用 WillPopScope 方法。
每个小部件都可能与应用程序中处理导航堆栈的方式相关。您可以确保正确处理导航堆栈。这是一个如何做到这一点的示例 -
return WillPopScope(
onWillPop: () async {
// Implement your custom back button behavior here
// Return true to allow popping the route, or false to prevent it.
return true;
},
child: MaterialApp(
// ... your MaterialApp configuration ...
),
);
通过使用 WillPopScope，您可以实现自定义逻辑来控制按下后退按钮时会发生什么。