Apply settings page transition

This change applies Shared X-Axis transition across settings pages. For
injected settings, the injected apps have to also apply the same
transition to take effect.

Fixes: 177479937
Test: robotests and navigate through settings pages
Change-Id: I6241860766f5969428faf9a5b3730a7614fdcd92

src/com/android/settings/core/SettingsBaseActivity.java

@@ -18,6 +18,7 @@ package com.android.settings.core;
 import android.annotation.LayoutRes;
 import android.annotation.Nullable;
 import android.app.ActivityManager;
+import android.app.ActivityOptions;
 import android.content.BroadcastReceiver;
 import android.content.ComponentName;
 import android.content.Context;
@@ -27,6 +28,7 @@ import android.content.pm.PackageManager;
 import android.content.res.TypedArray;
 import android.os.AsyncTask;
 import android.os.Bundle;
+import android.os.UserHandle;
 import android.text.TextUtils;
 import android.util.ArraySet;
 import android.util.FeatureFlagUtils;
@@ -43,8 +45,10 @@ import androidx.fragment.app.FragmentActivity;
 
 import com.android.settings.R;
 import com.android.settings.SubSettings;
+import com.android.settings.Utils;
 import com.android.settings.dashboard.CategoryManager;
 import com.android.settingslib.drawer.Tile;
+import com.android.settingslib.transition.SettingsTransitionHelper;
 
 import com.google.android.material.appbar.CollapsingToolbarLayout;
 import com.google.android.setupcompat.util.WizardManagerHelper;
@@ -60,6 +64,7 @@ public class SettingsBaseActivity extends FragmentActivity {
     protected static final boolean DEBUG_TIMING = false;
     private static final String TAG = "SettingsBaseActivity";
     private static final String DATA_SCHEME_PKG = "package";
+    private static final int DEFAULT_REQUEST = -1;
 
     // Serves as a temporary list of tiles to ignore until we heard back from the PM that they
     // are disabled.
@@ -73,6 +78,13 @@ public class SettingsBaseActivity extends FragmentActivity {
 
     @Override
     protected void onCreate(@Nullable Bundle savedInstanceState) {
+        if (Utils.isPageTransitionEnabled(this)) {
+            // Enable Activity transitions
+            getWindow().requestFeature(Window.FEATURE_ACTIVITY_TRANSITIONS);
+            SettingsTransitionHelper.applyForwardTransition(this);
+            SettingsTransitionHelper.applyBackwardTransition(this);
+        }
+
         super.onCreate(savedInstanceState);
         if (isLockTaskModePinned() && !isSettingsRunOnTop()) {
             Log.w(TAG, "Devices lock task mode pinned.");
@@ -122,6 +134,57 @@ public class SettingsBaseActivity extends FragmentActivity {
         return true;
     }
 
+    @Override
+    public void startActivity(Intent intent) {
+        if (!Utils.isPageTransitionEnabled(this)) {
+            super.startActivity(intent);
+            return;
+        }
+        super.startActivity(intent, getActivityOptionsBundle());
+    }
+
+    @Override
+    public void startActivity(Intent intent, @androidx.annotation.Nullable Bundle options) {
+        if (!Utils.isPageTransitionEnabled(this) || options != null) {
+            super.startActivity(intent, options);
+            return;
+        }
+        super.startActivity(intent, getActivityOptionsBundle());
+    }
+
+    @Override
+    public void startActivityForResult(Intent intent, int requestCode) {
+        // startActivity() will eventually calls startActivityForResult() with requestCode -1.
+        // Adding this condition to avoid multiple calls.
+        if (!Utils.isPageTransitionEnabled(this) || requestCode == DEFAULT_REQUEST) {
+            super.startActivityForResult(intent, requestCode);
+            return;
+        }
+        super.startActivityForResult(intent, requestCode, getActivityOptionsBundle());
+    }
+
+    @Override
+    public void startActivityForResult(Intent intent, int requestCode,
+            @androidx.annotation.Nullable Bundle options) {
+        if (!Utils.isPageTransitionEnabled(this) || requestCode == DEFAULT_REQUEST
+                || options != null) {
+            super.startActivityForResult(intent, requestCode, options);
+            return;
+        }
+        super.startActivityForResult(intent, requestCode, getActivityOptionsBundle());
+    }
+
+    @Override
+    public void startActivityForResultAsUser(Intent intent, int requestCode,
+            UserHandle userHandle) {
+        if (!Utils.isPageTransitionEnabled(this) || requestCode == DEFAULT_REQUEST) {
+            super.startActivityForResultAsUser(intent, requestCode, userHandle);
+            return;
+        }
+        super.startActivityForResultAsUser(intent, requestCode, getActivityOptionsBundle(),
+                userHandle);
+    }
+
     @Override
     protected void onResume() {
         super.onResume();
@@ -267,10 +330,16 @@ public class SettingsBaseActivity extends FragmentActivity {
         }
     }
 
+    private Bundle getActivityOptionsBundle() {
+        final Toolbar toolbar = findViewById(R.id.action_bar);
+        return ActivityOptions.makeSceneTransitionAnimation(this, toolbar,
+                "shared_element_view").toBundle();
+    }
+
     public interface CategoryListener {
         /**
          * @param categories the changed categories that have to be refreshed, or null to force
-         * refreshing all.
+         *                   refreshing all.
          */
         void onCategoriesChanged(@Nullable Set<String> categories);
     }

src/com/android/settings/core/SubSettingLauncher.java

@@ -17,18 +17,22 @@
 package com.android.settings.core;
 
 import android.annotation.StringRes;
+import android.app.Activity;
+import android.app.ActivityOptions;
 import android.content.Context;
 import android.content.Intent;
-import android.os.Build;
 import android.os.Bundle;
 import android.os.UserHandle;
 import android.text.TextUtils;
+import android.widget.Toolbar;
 
 import androidx.annotation.VisibleForTesting;
 import androidx.fragment.app.Fragment;
 
+import com.android.settings.R;
 import com.android.settings.SettingsActivity;
 import com.android.settings.SubSettings;
+import com.android.settings.Utils;
 import com.android.settingslib.core.instrumentation.MetricsFeatureProvider;
 
 public class SubSettingLauncher {
@@ -183,7 +187,16 @@ public class SubSettingLauncher {
         resultListener.getActivity().startActivityForResultAsUser(intent, requestCode, userHandle);
     }
 
-    private void launchForResult(Fragment listener, Intent intent, int requestCode) {
+    @VisibleForTesting
+    void launchForResult(Fragment listener, Intent intent, int requestCode) {
+        if (Utils.isPageTransitionEnabled(mContext)) {
+            final Activity activity = listener.getActivity();
+            final Toolbar toolbar = activity.findViewById(R.id.action_bar);
+            final Bundle bundle = ActivityOptions.makeSceneTransitionAnimation(activity, toolbar,
+                    "shared_element_view").toBundle();
+            listener.startActivityForResult(intent, requestCode, bundle);
+            return;
+        }
         listener.startActivityForResult(intent, requestCode);
     }
 
@@ -192,6 +205,7 @@ public class SubSettingLauncher {
             intent.replaceExtras(mLaunchRequest.extras);
         }
     }
+
     /**
      * Simple container that has information about how to launch a subsetting.
      */