1 files changed, 82 insertions, 0 deletions
diff --git a/src/com/android/settings/display/NightModePreferenceController.java b/src/com/android/settings/display/NightModePreferenceController.java
new file mode 100644
index 0000000000..7b3c584d5d
--- /dev/null
+++ b/src/com/android/settings/display/NightModePreferenceController.java
@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2016 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.display;
+
+import android.app.UiModeManager;
+import android.content.Context;
+import android.support.v7.preference.ListPreference;
+import android.support.v7.preference.Preference;
+import android.support.v7.preference.PreferenceScreen;
+import android.util.Log;
+
+import com.android.settings.core.PreferenceController;
+
+import static android.content.Context.UI_MODE_SERVICE;
+
+public class NightModePreferenceController extends PreferenceController
+        implements Preference.OnPreferenceChangeListener {
+
+    private static final String TAG = "NightModePrefContr";
+    private static final String KEY_NIGHT_MODE = "night_mode";
+
+    public NightModePreferenceController(Context context) {
+        super(context);
+    }
+
+    @Override
+    protected boolean isAvailable() {
+        return false;
+    }
+
+    @Override
+    protected String getPreferenceKey() {
+        return KEY_NIGHT_MODE;
+    }
+
+    @Override
+    public void displayPreference(PreferenceScreen screen) {
+        if (!isAvailable()) {
+            removePreference(screen, KEY_NIGHT_MODE);
+            return;
+        }
+        ListPreference mNightModePreference = (ListPreference) screen.findPreference(
+                KEY_NIGHT_MODE);
+        if (mNightModePreference != null) {
+            final UiModeManager uiManager =
+                    (UiModeManager) mContext.getSystemService(UI_MODE_SERVICE);
+            final int currentNightMode = uiManager.getNightMode();
+            mNightModePreference.setValue(String.valueOf(currentNightMode));
+            mNightModePreference.setOnPreferenceChangeListener(this);
+        }
+    }
+
+    @Override
+    public boolean handlePreferenceTreeClick(Preference preference) {
+        return false;
+    }
+
+    @Override
+    public boolean onPreferenceChange(Preference preference, Object newValue) {
+        try {
+            final int value = Integer.parseInt((String) newValue);
+            final UiModeManager uiManager =
+                    (UiModeManager) mContext.getSystemService(UI_MODE_SERVICE);
+            uiManager.setNightMode(value);
+        } catch (NumberFormatException e) {
+            Log.e(TAG, "could not persist night mode setting", e);
+            return false;
+        }
+        return true;
+    }
+}