| /* |
| * 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.content.Context; |
| import android.provider.Settings; |
| import android.support.v7.preference.Preference; |
| import android.support.v14.preference.SwitchPreference; |
| |
| import com.android.settings.core.PreferenceControllerMixin; |
| import com.android.settingslib.core.AbstractPreferenceController; |
| |
| import static android.provider.Settings.System.SHOW_BATTERY_PERCENT; |
| |
| /** |
| * A controller to manage the switch for showing battery percentage in the status bar. |
| */ |
| |
| public class BatteryPercentagePreferenceController extends AbstractPreferenceController implements |
| PreferenceControllerMixin, Preference.OnPreferenceChangeListener { |
| |
| private static final String KEY_BATTERY_PERCENTAGE = "battery_percentage"; |
| |
| public BatteryPercentagePreferenceController(Context context) { |
| super(context); |
| } |
| |
| @Override |
| public boolean isAvailable() { |
| return true; |
| } |
| |
| @Override |
| public String getPreferenceKey() { |
| return KEY_BATTERY_PERCENTAGE; |
| } |
| |
| @Override |
| public void updateState(Preference preference) { |
| int setting = Settings.System.getInt(mContext.getContentResolver(), |
| SHOW_BATTERY_PERCENT, 0); |
| |
| ((SwitchPreference) preference).setChecked(setting == 1); |
| } |
| |
| @Override |
| public boolean onPreferenceChange(Preference preference, Object newValue) { |
| boolean showPercentage = (Boolean) newValue; |
| Settings.System.putInt(mContext.getContentResolver(), SHOW_BATTERY_PERCENT, |
| showPercentage ? 1 : 0); |
| return true; |
| } |
| } |