Refactor FeatureFactory

Not use reflection, sets the FeatureFactoryImpl in SettingsApplication
instead.

Bug: 286764889
Test: m Settings
Test: m SettingsSpaUnitTests
Test: m RunSettingsRoboTests
Change-Id: I881bf1009a94222fc89578d14a6792a6e1507be2

src/com/android/settings/SettingsApplication.java

@@ -17,15 +17,20 @@
 package com.android.settings;
 
 import android.app.Application;
+import android.content.Context;
 import android.database.ContentObserver;
 import android.net.Uri;
 import android.provider.Settings;
 import android.util.FeatureFlagUtils;
 
+import androidx.annotation.NonNull;
+
 import com.android.settings.activityembedding.ActivityEmbeddingRulesController;
 import com.android.settings.activityembedding.ActivityEmbeddingUtils;
 import com.android.settings.core.instrumentation.ElapsedTimeUtils;
 import com.android.settings.homepage.SettingsHomepageActivity;
+import com.android.settings.overlay.FeatureFactory;
+import com.android.settings.overlay.FeatureFactoryImpl;
 import com.android.settings.spa.SettingsSpaEnvironment;
 import com.android.settingslib.applications.AppIconCacheManager;
 import com.android.settingslib.spa.framework.common.SpaEnvironmentFactory;
@@ -39,6 +44,12 @@ public class SettingsApplication extends Application {
 
     private WeakReference<SettingsHomepageActivity> mHomeActivity = new WeakReference<>(null);
 
+    @Override
+    protected void attachBaseContext(Context base) {
+        super.attachBaseContext(base);
+        FeatureFactory.setFactory(this, getFeatureFactory());
+    }
+
     @Override
     public void onCreate() {
         super.onCreate();
@@ -62,6 +73,11 @@ public class SettingsApplication extends Application {
         }
     }
 
+    @NonNull
+    protected FeatureFactory getFeatureFactory() {
+        return new FeatureFactoryImpl();
+    }
+
     /**
      * Set the spa environment instance.
      * Override this function to set different spa environment for different Settings app.