1 /* 2 * Copyright (C) 2019 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 17 package com.android.car.settings.units; 18 19 import android.car.VehiclePropertyIds; 20 import android.car.VehicleUnit; 21 import android.car.drivingstate.CarUxRestrictions; 22 import android.content.Context; 23 24 import androidx.preference.ListPreference; 25 26 import com.android.car.settings.R; 27 import com.android.car.settings.common.FragmentController; 28 29 /** Controls {@link Unit} used for Energy Consumption Display. */ 30 public class UnitsEnergyConsumptionPreferenceController extends UnitsBasePreferenceController { 31 32 private final String mKWh; 33 UnitsEnergyConsumptionPreferenceController(Context context, String preferenceKey, FragmentController fragmentController, CarUxRestrictions uxRestrictions)34 public UnitsEnergyConsumptionPreferenceController(Context context, String preferenceKey, 35 FragmentController fragmentController, CarUxRestrictions uxRestrictions) { 36 super(context, preferenceKey, fragmentController, uxRestrictions); 37 mKWh = getContext().getString(UnitsMap.KILOWATT_HOUR.getAbbreviationResId()); 38 } 39 40 @Override getPreferenceType()41 protected Class<ListPreference> getPreferenceType() { 42 return ListPreference.class; 43 } 44 45 @Override getPropertyId()46 protected int getPropertyId() { 47 return VehiclePropertyIds.EV_BATTERY_DISPLAY_UNITS; 48 } 49 50 @Override generateSummaryFromUnit(Unit unit)51 protected String generateSummaryFromUnit(Unit unit) { 52 return getAbbreviationByUnit(unit); 53 } 54 55 @Override generateEntryStringFromUnit(Unit unit)56 protected String generateEntryStringFromUnit(Unit unit) { 57 int unitNameResId; 58 switch (unit.getId()) { 59 case VehicleUnit.MILE: 60 unitNameResId = R.string.units_unit_name_kilowatt_per_hundred_miles; 61 break; 62 default: 63 unitNameResId = R.string.units_unit_name_kilowatt_per_hundred_kilometers; 64 } 65 66 return getContext().getString(R.string.units_list_entry, getAbbreviationByUnit(unit), 67 getContext().getString(unitNameResId)); 68 69 } 70 getAbbreviationByUnit(Unit unit)71 private String getAbbreviationByUnit(Unit unit) { 72 int quantity = 100; 73 String denominator = getContext().getString(R.string.units_ratio_denominator, quantity, 74 getContext().getString(unit.getAbbreviationResId())); 75 76 return getContext().getString(R.string.units_ratio, mKWh, denominator); 77 } 78 } 79