我正在关注 Google I/O 2015 中的这个示例。
演示网站:http://recipe-app.com/recipe/grilled-potato-salad 演示应用程序:http://search-codelabs.appspot.com/codelabs/android-deep-linking

我的测试:
我已经从上面的链接安装了演示应用程序。 我使用 Google 搜索应用程序在 Google 上搜索“烤土 bean 沙拉”，发现 http://recipe-app.com/recipe/grilled-potato-salad .
我希望点击链接会直接打开应用程序，而不是消歧对话框(http://search-codelabs.appspot.com/img/android-deep-linking/img-5.png)。 然而，消歧对话框仍然出乎我的意料。

不是 <link rel="alternate" href="android-app://com.recipe_app/http/recipe-app.com/recipe/grilled-potato-salad" />上网站没用呢？

应用的 list 文件:
```

<uses-permission android:name="android.permission.INTERNET"/>

<application
    android:allowBackup="true"
    android:icon="@drawable/ic_launcher"
    android:label="@string/app_name"
    android:theme="@style/CustomActionBarTheme" >

    <activity
        android:name=".client.HomeActivity"
        android:label="@string/app_name"
        android:exported="true"
        android:theme="@android:style/Theme.Holo.NoActionBar">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>

    <activity
        android:name=".client.RecipeActivity"
        android:label="@string/app_name"
        android:exported="true"
        android:launchMode="singleTop"
        android:theme="@android:style/Theme.Holo.NoActionBar">
        <intent-filter android:label="@string/app_name">
            <action android:name="android.intent.action.VIEW" />
            <category android:name="android.intent.category.DEFAULT" />
            <category android:name="android.intent.category.BROWSABLE" />
            <!-- Accepts URIs that begin with "http://recipe-app.com/recipe" -->
            <data android:scheme="http"
                android:host="recipe-app.com"
                android:pathPrefix="/recipe" />
        </intent-filter>
    </activity>

    <provider
        android:name=".client.content_provider.RecipeContentProvider"
        android:authorities="com.recipe_app" >
    </provider>
</application>

```

最佳答案

那个教程确实过时了。
HTML 标记确实没用。

要使 Google 搜索结果与深层链接一起工作，需要的是公开重新启用 https://<yoursite>/.well-known/assetlinks.json按照说明 here 在您的生产网络服务器上创建文件:
为您的应用设置 URL 支持后，App Links Assistant 会生成一个数字 Assets 链接文件，您可以使用该文件将您的网站与您的应用相关联。

作为使用数字 Assets 链接文件的替代方法，您可以在 Search Console 中关联您的网站和应用。

要使用 App Links Assistant 关联您的应用程序和您的网站，请从 App Links Assistant 单击打开数字 Assets 链接文件生成器，然后按照以下步骤操作:

The App Links Assistant walks you through basic URL mapping Figure 2. Enter details about your site and app to generate a Digital Asset Links file.

1. Enter your Site domain and your Application ID. 2) To include support in your Digital Asset Links file for Smart Lock for Passwords, select Support sharing credentials between the app and the website and enter your site's login URL. This adds the following string to your Digital Asset Links file declaring that your app and website share sign-in credentials: delegate_permission/common.get_login_creds. Learn more about supporting Smart Lock for Passwords in your app. 3) Specify the signing config or select a keystore file. Make sure you select the right config or keystore file for either the release build or debug build of your app. If you want to set up your production build, use the release config. If you want to test your build, use the debug config. 4) Click Generate Digital Asset Links file. 5) Once Android Studio generates the file, click Save file to download it. 6) Upload the assetlinks.json file to your site, with read-access for everyone, at https:///.well-known/assetlinks.json. Important: The system verifies the Digital Asset Links file via the encrypted HTTPS protocol. Make sure that the assetlinks.json file is accessible over an HTTPS connection, regardless of whether your app's intent filter includes https.

2. Click Link and Verify to confirm that you've uploaded the correct Digital Asset Links file to the correct location.

您现在应该能够在 Google 搜索结果中看到您的应用程序 - 已安装，这就是您知道它有效的方式

关于android-app 链接不工作，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/39240439/