[automerge] Fix incorrect colored bar when task bar is hidden 2p: 39c8905f4c

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Settings/+/16972170

Change-Id: Iec184e49d8bcb3ccef49a13f0bb24d048103c759

res/layout/settings_homepage_container.xml

@@ -19,7 +19,6 @@
     xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     android:id="@+id/settings_homepage_container"
-    android:fitsSystemWindows="true"
     android:layout_width="match_parent"
     android:layout_height="match_parent">
 

src/com/android/settings/homepage/SettingsHomepageActivity.java

@@ -32,12 +32,17 @@ import android.util.ArraySet;
 import android.util.FeatureFlagUtils;
 import android.util.Log;
 import android.view.View;
+import android.view.ViewGroup;
 import android.view.Window;
 import android.view.WindowManager;
 import android.widget.FrameLayout;
 import android.widget.ImageView;
 import android.widget.Toolbar;
 
+import androidx.core.graphics.Insets;
+import androidx.core.view.ViewCompat;
+import androidx.core.view.WindowCompat;
+import androidx.core.view.WindowInsetsCompat;
 import androidx.fragment.app.Fragment;
 import androidx.fragment.app.FragmentActivity;
 import androidx.fragment.app.FragmentManager;
@@ -96,7 +101,7 @@ public class SettingsHomepageActivity extends FragmentActivity implements
         void onHomepageLoaded();
     }
 
-    private interface FragmentBuilder<T extends Fragment>  {
+    private interface FragmentBuilder<T extends Fragment> {
         T build();
     }
 
@@ -149,7 +154,9 @@ public class SettingsHomepageActivity extends FragmentActivity implements
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
+        setupEdgeToEdge();
         setContentView(R.layout.settings_homepage_container);
+
         mIsEmbeddingActivityEnabled = ActivityEmbeddingUtils.isEmbeddingActivityEnabled(this);
         mSplitController = SplitController.getInstance();
         mIsTwoPane = mSplitController.isActivityEmbedded(this);
@@ -224,6 +231,24 @@ public class SettingsHomepageActivity extends FragmentActivity implements
         }
     }
 
+    private void setupEdgeToEdge() {
+        WindowCompat.setDecorFitsSystemWindows(getWindow(), false);
+        ViewCompat.setOnApplyWindowInsetsListener(findViewById(android.R.id.content),
+                (v, windowInsets) -> {
+                    Insets insets = windowInsets.getInsets(WindowInsetsCompat.Type.systemBars());
+                    // Apply the insets as a margin to the view. Here the system is setting
+                    // only the top dimensions.
+                    ViewGroup.MarginLayoutParams mlp =
+                            (ViewGroup.MarginLayoutParams) v.getLayoutParams();
+                    mlp.topMargin = insets.top;
+                    v.setLayoutParams(mlp);
+
+                    // Return CONSUMED if you don't want the window insets to keep being
+                    // passed down to descendant views.
+                    return WindowInsetsCompat.CONSUMED;
+                });
+    }
+
     private void initSearchBarView() {
         final Toolbar toolbar = findViewById(R.id.search_action_bar);
         FeatureFactory.getFactory(this).getSearchFeatureProvider()
@@ -265,7 +290,7 @@ public class SettingsHomepageActivity extends FragmentActivity implements
         // Update status bar color
         window.setStatusBarColor(color);
         // Update content background.
-        findViewById(R.id.settings_homepage_container).setBackgroundColor(color);
+        findViewById(android.R.id.content).setBackgroundColor(color);
     }
 
     private void showSuggestionFragment(boolean scrollNeeded) {