1 /* 2 * Copyright (C) 2018 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 package com.android.settings.fuelgauge.batterysaver; 17 18 import android.content.ContentResolver; 19 import android.content.Context; 20 import android.os.PowerManager; 21 import android.provider.Settings; 22 import android.provider.Settings.Global; 23 24 import androidx.preference.Preference; 25 import androidx.preference.Preference.OnPreferenceChangeListener; 26 import androidx.preference.PreferenceScreen; 27 28 import com.android.internal.annotations.VisibleForTesting; 29 import com.android.settings.R; 30 import com.android.settings.Utils; 31 import com.android.settings.widget.SeekBarPreference; 32 33 /** 34 * Responds to user actions in the Settings > Battery > Set a Schedule Screen for the seekbar. 35 * Note that this seekbar is only visible when the radio button selected is "Percentage". 36 * 37 * Note that this is not a preference controller since that screen does not inherit from 38 * DashboardFragment. 39 * 40 * Will call the appropriate power manager APIs and modify the correct settings to enable 41 * users to control their automatic battery saver toggling preferences. 42 * See {@link Settings.Global#AUTOMATIC_POWER_SAVE_MODE} for more details. 43 */ 44 public class BatterySaverScheduleSeekBarController implements 45 OnPreferenceChangeListener { 46 47 public static final int MAX_SEEKBAR_VALUE = 15; 48 public static final int MIN_SEEKBAR_VALUE = 1; 49 public static final String KEY_BATTERY_SAVER_SEEK_BAR = "battery_saver_seek_bar"; 50 51 @VisibleForTesting 52 public SeekBarPreference mSeekBarPreference; 53 private Context mContext; 54 BatterySaverScheduleSeekBarController(Context context)55 public BatterySaverScheduleSeekBarController(Context context) { 56 mContext = context; 57 mSeekBarPreference = new SeekBarPreference(context); 58 mSeekBarPreference.setLayoutResource(R.layout.preference_widget_seekbar_settings); 59 mSeekBarPreference.setIconSpaceReserved(false); 60 mSeekBarPreference.setOnPreferenceChangeListener(this); 61 mSeekBarPreference.setContinuousUpdates(true); 62 mSeekBarPreference.setMax(MAX_SEEKBAR_VALUE); 63 mSeekBarPreference.setMin(MIN_SEEKBAR_VALUE); 64 mSeekBarPreference.setKey(KEY_BATTERY_SAVER_SEEK_BAR); 65 mSeekBarPreference.setHapticFeedbackMode(SeekBarPreference.HAPTIC_FEEDBACK_MODE_ON_TICKS); 66 updateSeekBar(); 67 } 68 69 @Override onPreferenceChange(Preference preference, Object newValue)70 public boolean onPreferenceChange(Preference preference, Object newValue) { 71 // The nits are in intervals of 5% 72 final int percentage = ((Integer) newValue) * 5; 73 Settings.Global.putInt(mContext.getContentResolver(), Global.LOW_POWER_MODE_TRIGGER_LEVEL, 74 percentage); 75 final CharSequence stateDescription = formatStateDescription(percentage); 76 preference.setTitle(stateDescription); 77 mSeekBarPreference.overrideSeekBarStateDescription(stateDescription); 78 return true; 79 } 80 updateSeekBar()81 public void updateSeekBar() { 82 final ContentResolver resolver = mContext.getContentResolver(); 83 // Note: this can also be obtained via PowerManager.getPowerSaveModeTrigger() 84 final int mode = Settings.Global.getInt(resolver, Global.AUTOMATIC_POWER_SAVE_MODE, 85 PowerManager.POWER_SAVE_MODE_TRIGGER_PERCENTAGE); 86 // if mode is "dynamic" we are in routine mode, percentage with non-zero threshold is 87 // percentage mode, otherwise it is no schedule mode 88 if (mode == PowerManager.POWER_SAVE_MODE_TRIGGER_PERCENTAGE) { 89 final int threshold = 90 Settings.Global.getInt(resolver, Global.LOW_POWER_MODE_TRIGGER_LEVEL, 0); 91 if (threshold <= 0) { 92 mSeekBarPreference.setVisible(false); 93 } else { 94 final int currentSeekbarValue = Math.max(threshold / 5, MIN_SEEKBAR_VALUE); 95 mSeekBarPreference.setVisible(true); 96 mSeekBarPreference.setProgress(currentSeekbarValue); 97 final CharSequence stateDescription = formatStateDescription( 98 currentSeekbarValue * 5); 99 mSeekBarPreference.setTitle(stateDescription); 100 mSeekBarPreference.overrideSeekBarStateDescription(stateDescription); 101 } 102 } else { 103 mSeekBarPreference.setVisible(false); 104 } 105 } 106 107 /** 108 * Adds the seekbar to the end of the provided preference screen 109 * 110 * @param screen The preference screen to add the seekbar to 111 */ addToScreen(PreferenceScreen screen)112 public void addToScreen(PreferenceScreen screen) { 113 // makes sure it gets added after the preferences if called due to first time battery 114 // saver message 115 mSeekBarPreference.setOrder(100); 116 screen.addPreference(mSeekBarPreference); 117 } 118 formatStateDescription(int percentage)119 private CharSequence formatStateDescription(int percentage) { 120 return mContext.getString(R.string.battery_saver_seekbar_title, 121 Utils.formatPercentage(percentage)); 122 } 123 } 124