Add support for Android 12 recents URL sharing

app/src/main/java/com/hippo/scene/SceneFragment.java

@@ -16,6 +16,7 @@
 
 package com.hippo.scene;
 
+import android.app.assist.AssistContent;
 import android.os.Bundle;
 import android.view.View;
 
@@ -104,6 +105,10 @@ public class SceneFragment extends Fragment {
         finish();
     }
 
+    public void onProvideAssistContent(AssistContent outContent) {
+
+    }
+
     @Override
     public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
         super.onViewCreated(view, savedInstanceState);