Android Deep Linking (Intents) Support in .NET MAUI

Question

I am currently trying to add deep linking support (via Intents) to an Android application written using .NET MAUI.

I have added an activity XML element under the application element in my AndroidManifest.xml:

<?xml version="1.0" encoding="utf-8"?>  
<manifest xmlns:android="http://schemas.android.com/apk/res/android">  
    <application android:allowBackup="true" android:icon="@mipmap/appicon" android:roundIcon="@mipmap/appicon_round" android:supportsRtl="true">  
      <activity android:name="TestApp.MainActivity" android:exported="true">  
        <intent-filter>  
          <action android:name="android.intent.action.VIEW" />  
          <category android:name="android.intent.category.DEFAULT" />  
          <category android:name="android.intent.category.BROWSABLE" />  
          <data android:scheme="https"  
                android:host="test"  
                android:pathPrefix="/group" />  
        </intent-filter>  
      </activity>  
    </application>  
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />  
    <uses-permission android:name="android.permission.INTERNET" />  
</manifest>  

I have also added an IntentFilter to the MainActivity.cs under Platforms\Android (see below):

[IntentFilter(new[] { Intent.ActionView },  
    Categories = new[]  
    {  
        Intent.ActionView,  
        Intent.CategoryDefault,  
        Intent.CategoryBrowsable  
    },  
    DataScheme = "https", DataHost = "test", DataPathPrefix = "/group"  
    )  
]  
public class MainActivity : MauiAppCompatActivity  

Just not sure what to do at this point to react (where to put event handler, etc.) to the intent.

If anyone has any suggestions, it would be greatly appreciated.

Answer 1

Hello,​

Just not sure what to do at this point to react (where to put event handler, etc.) to the intent.

Here is a solution, you can handle this Intent in the OnCreate method of MainActivity like following code and verified the Intent is an Action.View and strLink is not empty.

   protected override void OnCreate(Bundle savedInstanceState)  
       {  
           base.OnCreate(savedInstanceState);  
     
               Intent intent = this.Intent;             
               var action = intent.Action;  
               var strLink = intent.DataString;  
               if (Intent.ActionView == action && !string.IsNullOrWhiteSpace(strLink))  
               {  
                    
                   Toast.MakeText(this, strLink, ToastLength.Short).Show();  
               }  
     
            
       }  

Best Regards,

Leon Lu

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