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 17 package com.android.settings.display; 18 19 import android.content.Context; 20 import android.hardware.display.ColorDisplayManager; 21 22 import androidx.preference.DropDownPreference; 23 import androidx.preference.Preference; 24 import androidx.preference.PreferenceScreen; 25 26 import com.android.settings.R; 27 import com.android.settings.core.BasePreferenceController; 28 29 public class NightDisplayAutoModePreferenceController extends BasePreferenceController 30 implements Preference.OnPreferenceChangeListener { 31 32 private DropDownPreference mPreference; 33 private ColorDisplayManager mColorDisplayManager; 34 NightDisplayAutoModePreferenceController(Context context, String key)35 public NightDisplayAutoModePreferenceController(Context context, String key) { 36 super(context, key); 37 mColorDisplayManager = context.getSystemService(ColorDisplayManager.class); 38 } 39 40 @Override getAvailabilityStatus()41 public int getAvailabilityStatus() { 42 return ColorDisplayManager.isNightDisplayAvailable(mContext) ? AVAILABLE 43 : UNSUPPORTED_ON_DEVICE; 44 } 45 46 @Override displayPreference(PreferenceScreen screen)47 public void displayPreference(PreferenceScreen screen) { 48 super.displayPreference(screen); 49 50 mPreference = screen.findPreference(getPreferenceKey()); 51 52 mPreference.setEntries(new CharSequence[]{ 53 mContext.getString(R.string.night_display_auto_mode_never), 54 mContext.getString(R.string.night_display_auto_mode_custom), 55 mContext.getString(R.string.night_display_auto_mode_twilight) 56 }); 57 mPreference.setEntryValues(new CharSequence[]{ 58 String.valueOf(ColorDisplayManager.AUTO_MODE_DISABLED), 59 String.valueOf(ColorDisplayManager.AUTO_MODE_CUSTOM_TIME), 60 String.valueOf(ColorDisplayManager.AUTO_MODE_TWILIGHT) 61 }); 62 } 63 64 @Override updateState(Preference preference)65 public final void updateState(Preference preference) { 66 mPreference.setValue(String.valueOf(mColorDisplayManager.getNightDisplayAutoMode())); 67 } 68 69 @Override onPreferenceChange(Preference preference, Object newValue)70 public final boolean onPreferenceChange(Preference preference, Object newValue) { 71 return mColorDisplayManager.setNightDisplayAutoMode(Integer.parseInt((String) newValue)); 72 } 73 } 74