Explore Deep Linking in Flutter

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Explore Deep Linking in Flutter

Think about having your own website or web application as well as two amazing applications (Android as well as iOS) to make your product available to customers. There’s a reason why the analytics show that users are accessing information about your product predominantly through browsers and not just on desktops as well as on mobile.

When a web application or website isn’t mobile friendly users may be unable to locate the information they are looking for, which could lead to users being dropped off.

Why not redirect users to the Play Store or app store, and let them use apps that are specifically designed to offer the best user experience on mobile devices?

This can cause another issue where the user downloads the application and then has to manually navigate to products that they previously were interested in by clicking the URL in the mobile browser. This can also affect user experience and needs to be fixed.

URL’s

Assuming the deeplinkingdemoapp.page.link has an Android and an iOS app, the link should redirect you to one of these apps for a better user experience. In the event that an app is installed on your device, you are likely to see you being on the same screen in the app if the idea that deep linking is a concept (which is very popular now) is integrated into the applications.

what happens if the app is not installed?

With Dynamic Links Users receive the best possible experience on the device they are opening the link on. When the URL is open in ios or Android browsers, it will be directly taken to the related content within the native application. If the user opens the same link using the desktop then they will be directed to the same content on your web site or application.

If a user clicks on the Dynamic Link via iOS or Android and does not have the application installed, the user will be asked to install it. Once installed, the application will launch and will be able to open the link posted.

How are Dynamic links different from deep links?

Dynamic Link is Dynamic Link can be described as a direct link to your application that is functional regardless of whether your application is installed. It contains the following details:

  • The package name for the apps that it needs to target.
  • A fallback Url for redirection in those extreme cases where the app could not be installed.
  • And obviously, the deep link that the app should utilize to reach the web equivalent screen.

To add dynamic link support for the apps, we need to add our project in Firebase. This can be done directly from Android Studio:

  • Tools → Firebase
  • On the left side, the Firebase Assistant panel click on
  • Dynamic link → Add Dynamic Links
  • Adding intent-filters in AndroidManifest.xml for the activity which will handle the deep links as:
                        
                        
                        
                        

Now upon successful completion of the above steps, we can see our project in the Firebase console.

  • Firebase Console → Select your project → Dynamic links (Left side panel, under Grow) →Get Started
  • > Now click on the “New Dynamic link” button on the new page which will open:

Add the deep link URL

  • Provide app pieces of information to define link behavior for iOS and Android apps. The instructions for linking both Android and iOS apps are pretty much self-explanatory.
  • This is the dynamic link created which has all the information mentioned above, for it to be able to link

Now the dynamic link has enough information about the app and it can open the app (if installed) or take the user to the play store or app store for app installation. And once the app is launched the deep link which can be retrieved from the dynamic link can be processed.

How to get deep link data from a dynamic link?

  • PendingDynamicLinkData
  • dynamic link received by the activity. Now, this deep link can be handled similarly to any other deep links that the app supports.
  • This article will provide you with a basic idea of establishing Firebase Dynamic Links and setting Firebase Dynamic Links SDK on Android.
                    
                        _handleDeepLinks() async {
                            final PendingDynamicLinkData? initialLink =
                                await FirebaseDynamicLinks.instance.getInitialLink();
                            if (initialLink != null) {
                              final Uri deepLink = initial Link.link;
                              print('Deeplinks uri:${deepLink.path}');
                              if (deepLink.path == '/ShowApiDataScreen') {
                                AppRoche.next Page(
                                    context,
                                    ShowApiDataScreen(
                                      deepLinkPath: '${deepLink.path}:Deep Link',
                                    ));
                              } else if (deepLink.path == '/GoogleMapScreen') {
                                AppRoche.next Page(
                                    context,
                                    GoogleMapScreen(
                                      deepLinkPath: '${deepLink.path}:Deep Link',
                                    ));
                              } else if (deepLink.path == '/UserSignUpScreen') {
                                AppRoche.next Page(
                                    context,
                                    UserSignUpScreen(
                                      deeplinkPath: '${deepLink.path}:Deep Link',
                                    ));
                              }
                            }
                           }
                           
                    
                    

Frequently Asked Questions (FAQs)

Deep linking is a technology that allows users to navigate directly to specific content or features within a mobile app, bypassing the app’s home screen. In Flutter app development, deep linking enables developers to create seamless user experiences by directing users to relevant content or actions within the app based on external links or URLs.
followed by a specific path or route (e.g., /product-details) that corresponds to a particular screen or feature within the app. When a user clicks on a deep link, the operating system intercepts the link and routes it to the corresponding app, which then handles the navigation to the specified screen.
Implementing deep linking in Flutter apps offers several benefits, including improved user engagement and retention, enhanced user experience by providing direct access to relevant content, increased app discoverability through search engines and social media platforms, and seamless integration with marketing campaigns and promotional activities.
Developers can implement deep linking in Flutter apps by using packages like flutter_deep_linking or uni_links to handle incoming deep links, parsing the URL to extract route parameters or query parameters, and navigating to the corresponding screen or feature within the app using Flutter’s built-in navigation system (e.g., Navigator).
There are two main types of deep links used in Flutter apps: standard deep links and deferred deep links. Standard deep links directly navigate users to a specific screen or feature within the app. Deferred deep links, also known as smart links, can carry additional context or metadata and can be deferred until the user installs or opens the app for the first time.
Developers can handle deep links with dynamic parameters by parsing the URL parameters and using them to customize the content or behavior of the app dynamically. For example, developers can use deep link parameters to pre-fill forms, display personalized content, or track campaign attribution.
Some best practices for implementing deep linking in Flutter apps include creating a consistent URL structure, handling edge cases like invalid or malformed URLs gracefully, testing deep linking functionality across different platforms and devices, monitoring app analytics to track deep link performance, and providing fallback mechanisms for users without the app installed.
Developers can test deep linking functionality in Flutter apps by manually triggering deep links using tools like ADB (Android Debug Bridge) or Xcode simulator for iOS, testing deep links from external sources such as emails or social media posts, and using automated testing frameworks to verify deep linking behavior in different scenarios.
Real-world use cases for deep linking in Flutter apps include deep linking to specific product pages in e-commerce apps, directing users to relevant articles or content in news apps, inviting users to join specific groups or events in social networking apps, and providing seamless login or authentication experiences through email or social media deep links.
Developers can find resources and tutorials for exploring deep linking in Flutter apps on official Flutter documentation, community forums like Stack Overflow and GitHub, developer blogs and tutorials, online courses and webinars, and sample projects and code repositories. Additionally, exploring Flutter packages and plugins specific to deep linking can provide additional insights and guidance for implementation.