Create version 2 of InstalledAppDetails

- this is the first step for converting InstalledAppDetails into
DashboardFragment
- add a feature flag to determine whether to show the new installed app
detail page.
- decouple the fragment from AppInfoBase: extends from
SettingsPreferenceFragment directly and copy all codes from
AppInfoBase.

Bug: 69384089
Test: make RunSettingsRoboTests
Change-Id: If1ab5b216620eaba1d6bde20e65e7a602931fd94

src/com/android/settings/widget/EntityHeaderController.java

@@ -32,6 +32,7 @@ import android.support.annotation.IntDef;
 import android.support.annotation.VisibleForTesting;
 import android.support.v7.widget.RecyclerView;
 import android.text.TextUtils;
+import android.util.FeatureFlagUtils;
 import android.util.Log;
 import android.view.LayoutInflater;
 import android.view.View;
@@ -44,6 +45,8 @@ import com.android.settings.Utils;
 import com.android.settings.applications.AppInfoBase;
 import com.android.settings.applications.InstalledAppDetails;
 import com.android.settings.applications.LayoutPreference;
+import com.android.settings.applications.AppInfoDashboardFragment;
+import com.android.settings.core.FeatureFlags;
 import com.android.settings.overlay.FeatureFactory;
 import com.android.settingslib.applications.ApplicationsState;
 import com.android.settingslib.core.lifecycle.Lifecycle;
@@ -272,11 +275,17 @@ public class EntityHeaderController {
         entityHeaderContent.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View v) {
-                AppInfoBase.startAppInfoFragment(
-                        InstalledAppDetails.class, R.string.application_info_label,
-                        mPackageName, mUid, mFragment, 0 /* request */,
-                        mMetricsCategory);
-
+                if (FeatureFlagUtils.isEnabled(mAppContext, FeatureFlags.APP_INFO_V2)) {
+                    AppInfoBase.startAppInfoFragment(
+                            AppInfoDashboardFragment.class, R.string.application_info_label,
+                            mPackageName, mUid, mFragment, 0 /* request */,
+                            mMetricsCategory);
+                } else {
+                    AppInfoBase.startAppInfoFragment(
+                            InstalledAppDetails.class, R.string.application_info_label,
+                            mPackageName, mUid, mFragment, 0 /* request */,
+                            mMetricsCategory);
+                }
             }
         });
         return;