![]() The next steps are actually handling the intent that a universal link will send to your Activity. You’ve read through the official tutorial, and there’s no edge cases there that apply to you.You’re using HTTPS (not HTTP) everywhere.You’ve tried completely reinstalling your app, to force the verification process.You don’t see any errors when checking your URL on the API.You’re signing your app with the same certificate / key you used to create your assetlinks.Now, when you try to open links to your domain, your app should automatically open. That’s it, your app is linked to your domain! Your screen will end up looking like this, you can click a URL to see it in the manifest: Pick an activity (probably MainActivity)Īn intent filter will then be added to your AndroidManifest.This can be done automatically in Android Studio’s Tools -> App Links Assistant -> URL Mapping Editor: We also want to use autoVerify to automatically verify we own the domain. The only change we need to make to the manifest is specifying which activity our URL should open. In the meantime, we can make the necessary changes to the app. It can take a while for Cloudflare and GitHub changes to propagate, so be prepared to wait a few hours. ![]() You should see your json, followed by **** ERRORS **** \ nNone ! \ n, this means it’s all sorted! Visit your asset links URL ( and you should finally see your file!įinally, check your domain on Google’s asset linking API. Essentially, you can’t navigate directly to your asset linking file without telling GitHub the folder should be included: I got stuck here for quite a while, as it turns out GitHub treats folders in Pages repositories differently to how I expected. This needs to be enabled for app linking to work, but can take a few minutes to appear. Now your subdomain is configured, enable the “Enforce HTTPS” option now available in your GitHub repo’s settings. Whilst it can take up to 24 hours for these changes to propagate, for me it was just a few seconds! Final changes on GitHub When you visit your subdomain’s URL, you should now see some information about your GitHub repository. Using at least 2 of those IPs, add proxied “A” records for your subdomain.On GitHub’s walkthrough, scroll to Step 4 of “ Configuring an apex domain“.This makes sure all changes are visible immediately. In Cloudflare, turn on “Development Mode” under “Quick Actions” on the overview of your domain.There is an official GitHub walkthrough, but the process simply didn’t work for me, perhaps because I use Cloudflare. Now our file is hosted, we need to actually make it available at our URL!Ĭonfiguring the DNS records to properly display the GitHub pages repository was perhaps the trickiest bit of this process. Your settings should look like this, note that “Enforce HTTPS” won’t be available yet, and your site won’t be published yet. Enter your custom domain’s information.In the repository’s settings, set a “Source” for GitHub pages (probably master / main branch).Create a new public GitHub repository, and clone it locally.Next, we need to make and configure a repository to host our file (free hosting!). Save it somewhere, and we’ll move on to hosting it. Simply enter your domain and package, along with your signing information (to retrieve the certificate), and the file will be made for you. This can be made manually, but Android Studio’s wizard (Tools -> App Links Assistant -> Associate website) is much easier. This essentially lists our URL, our app’s package, and our app’s signature. Preparing your JSON linking fileįirst, to tell Android that our app is allowed to handle certain URLs, we need to host an assetlinks. ![]() I’d also recommend reading through the App Links training, specifically verifying links. There’s a very detailed companion guide, containing excellent information on handling the links and generating the asset linking file. Throughout this tutorial we’ll also be using the “App Links Assistant”, available under “Tools” in Android Studio. uk with your URL (you can also look at Facebook’s or Google’s!). The response shows what Google uses when they try to validate your links, along with any errors encountered. Starting resourcesīefore we get started, I’d like to mention this extremely helpful URL I found whilst implementing app links. This introduced a few problems, hopefully this post helps others solve them!Īs a very brief overview of the process, we’ll be hosting a config file that tells Google / Android our app is allowed to automatically handle our links. However, to complicate matters slightly my domain is behind Cloudflare, I wanted to use a subdomain, and I wanted to use GitHub pages for free hosting. uk / day / 2020 - 01 - 01 and be taken directly to that APOD within the app! These allow users with the app installed to click a link like apod. As part of my APOD wallpaper rewrite, I wanted to support universal links / app links.
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