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<topic_start> |
1. Customize a Flutter application |
Write a Flutter app that can handle an incoming URL. |
This example uses the go_router package to handle the routing. |
The Flutter team maintains the go_router package. |
It provides a simple API to handle complex routing scenarios.To create a new application, type flutter create <app-name>.To include the go_router package as a dependency, |
run flutter pub add:To handle the routing, create a GoRouter object in the main.dart file: |
<code_start>import 'package:flutter/material.dart'; |
import 'package:go_router/go_router.dart'; |
void main() => runApp(MaterialApp.router(routerConfig: router)); |
/// This handles '/' and '/details'. |
final router = GoRouter( |
routes: [ |
GoRoute( |
path: '/', |
builder: (_, __) => Scaffold( |
appBar: AppBar(title: const Text('Home Screen')), |
), |
routes: [ |
GoRoute( |
path: 'details', |
builder: (_, __) => Scaffold( |
appBar: AppBar(title: const Text('Details Screen')), |
), |
), |
], |
), |
], |
);<code_end> |
<topic_end> |
<topic_start> |
2. Adjust iOS build settings |
Navigate to the Info Plist file in the ios/Runner folder.Update the key to FlutterDeepLinkingEnabled with a Boolean value set to YES.info Note |
The FlutterDeepLinkingEnabled property opts into Flutter’s default deeplink handler. If |
you are using the third-party plugins, such as uni_links, setting this property will |
break these plugins. Skip this step if you prefer to use third-party plugins.Click Associated Domains.Enter applinks:<web domain>. Replace <web domain> with your own domain name.You have finished configuring the application for deep linking.<topic_end> |
<topic_start> |
3. Hosting apple-app-site-association file |
You need to host an apple-app-site-association file in the web domain. |
This file tells the mobile browser which iOS application to open instead of the browser. |
To create the file, get the app ID of the Flutter app you created in the previous step.<topic_end> |
<topic_start> |
App ID |
Apple formats the app ID as <team id>.<bundle id>.For example: Given a team ID of S8QB4VV633 |
and a bundle ID of com.example.deeplinkCookbook, The app ID is |
S8QB4VV633.com.example.deeplinkCookbook.<topic_end> |
<topic_start> |
apple-app-site-association |
The hosted file should have the following content:Set the appID value to <team id>.<bundle id>.Set the paths value to ["*"]. |
The paths field specifies the allowed universal links. |
Using the asterisk, * redirects every path to the Flutter application. |
If needed, change the paths value to a setting more appropriate |
to your app.Host the file at a URL that resembles the following: |
<webdomain>/.well-known/apple-app-site-associationVerify that your browser can access this file.<topic_end> |
<topic_start> |
Testing |
info Note |
It might take up to 24 hours before Apple’s |
Content Delivery Network (CDN) |
requests the apple-app-site-association (AASA) file from your web domain. |
The universal link won’t work until the CDN requests the file. |
To bypass Apple’s CDN, check out the alternate mode section.You can use a real device or the Simulator to test a universal link, |
but first make sure you have executed flutter run at least once on |
the devices. This ensures that the Flutter application is installed.If using the Simulator, test using the Xcode CLI:Otherwise, type the URL in the Note app and click it.If everything is set up correctly, the Flutter application |
launches and displays the details screen:<topic_end> |
<topic_start> |
Appendix |
Source code: deeplink_cookbook |
<topic_end> |
<topic_start>Configuring the URL strategy on the web |
Flutter web apps support two ways of configuring |
URL-based navigation on the web:<topic_end> |
<topic_start> |
Configuring the URL strategy |
To configure Flutter to use the path instead, use the |
usePathUrlStrategy function provided by the flutter_web_plugins library |
in the SDK:<topic_end> |
<topic_start> |
Configuring your web server |
PathUrlStrategy uses the History API, which requires additional |
configuration for web servers.To configure your web server to support PathUrlStrategy, check your web server’s |
documentation to rewrite requests to index.html.Check your web server’s |
documentation for details on how to configure single-page apps.If you are using Firebase Hosting, choose the “Configure as a single-page app” |
option when initializing your project. For more information see Firebase’s |
Configure rewrites documentation.The local dev server created by running flutter run -d chrome is configured to |
handle any path gracefully and fallback to your app’s index.html file.<topic_end> |
<topic_start> |
Hosting a Flutter app at a non-root location |
Update the <base href="/"> tag in web/index.html |
to the path where your app is hosted. |
For example, to host your Flutter app at |
my_app.dev/flutter_app, change |
this tag to <base href="/flutter_app/">. |
<topic_end> |
<topic_start>Introduction to animations |
Well-designed animations make a UI feel more intuitive, |
contribute to the slick look and feel of a polished app, |
and improve the user experience. |
Flutter’s animation support makes it easy to implement a variety of |
animation types. Many widgets, especially Material widgets, |
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