Added settings UI for camera lift trigger gesture

Bug: 37154489
Test: manual + make RunSettingsRoboTests

- Added preference fragment for camera lift gesture
- Added activity alias for camera lift gesture setting
- Added resources + overlays for camera lift gesture setting
- Added config flag for limiting camera lift gesture setting for Pixel
- Added Robolectric tests for camera lift gesture settings classes

Change-Id: Ie4846cb1ea6b5279a19f20cb0299426f0d5cbb71

src/com/android/settings/gestures/CameraLiftTriggerSettings.java

@@ -0,0 +1,80 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.gestures;
+
+import android.content.Context;
+import android.provider.SearchIndexableResource;
+
+import com.android.internal.logging.nano.MetricsProto;
+import com.android.settings.R;
+import com.android.settings.core.PreferenceController;
+import com.android.settings.core.lifecycle.Lifecycle;
+import com.android.settings.dashboard.DashboardFragment;
+import com.android.settings.search.BaseSearchIndexProvider;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+public class CameraLiftTriggerSettings extends DashboardFragment {
+
+    private static final String TAG = "CameraLiftTrigger";
+    private static final String KEY = "gesture_camera_lift_trigger";
+
+    @Override
+    public int getMetricsCategory() {
+        return MetricsProto.MetricsEvent.SETTINGS_GESTURE_CAMERA_LIFT_TRIGGER;
+    }
+
+    @Override
+    protected String getLogTag() {
+        return TAG;
+    }
+
+    @Override
+    protected int getPreferenceScreenResId() {
+        return R.xml.camera_lift_trigger_settings;
+    }
+
+    @Override
+    protected List<PreferenceController> getPreferenceControllers(Context context) {
+        return buildPreferenceControllers(context, getLifecycle());
+    }
+
+    private static List<PreferenceController> buildPreferenceControllers(Context context,
+            Lifecycle lifecycle) {
+        final List<PreferenceController> controllers = new ArrayList<>();
+        controllers.add(new CameraLiftTriggerPreferenceController(context, lifecycle, KEY));
+        return controllers;
+    }
+
+    public static final SearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
+            new BaseSearchIndexProvider() {
+                @Override
+                public List<SearchIndexableResource> getXmlResourcesToIndex(
+                        Context context, boolean enabled) {
+                    final SearchIndexableResource sir = new SearchIndexableResource(context);
+                    sir.xmlResId = R.xml.camera_lift_trigger_settings;
+                    return Arrays.asList(sir);
+                }
+
+                @Override
+                public List<PreferenceController> getPreferenceControllers(Context context) {
+                    return buildPreferenceControllers(context, null /* lifecycle */);
+                }
+            };
+}