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.development; 18 19 import android.app.UiModeManager; 20 import android.content.Context; 21 import android.support.annotation.VisibleForTesting; 22 import android.support.v7.preference.ListPreference; 23 import android.support.v7.preference.Preference; 24 25 import com.android.settings.R; 26 import com.android.settings.core.PreferenceControllerMixin; 27 import com.android.settingslib.development.DeveloperOptionsPreferenceController; 28 29 public class DarkUIPreferenceController extends DeveloperOptionsPreferenceController 30 implements Preference.OnPreferenceChangeListener, PreferenceControllerMixin { 31 32 private static final String DARK_UI_KEY = "dark_ui_mode"; 33 private final UiModeManager mUiModeManager; 34 DarkUIPreferenceController(Context context)35 public DarkUIPreferenceController(Context context) { 36 this(context, context.getSystemService(UiModeManager.class)); 37 } 38 39 @VisibleForTesting DarkUIPreferenceController(Context context, UiModeManager uiModeManager)40 DarkUIPreferenceController(Context context, UiModeManager uiModeManager) { 41 super(context); 42 mUiModeManager = uiModeManager; 43 } 44 45 @Override getPreferenceKey()46 public String getPreferenceKey() { 47 return DARK_UI_KEY; 48 } 49 50 @Override onPreferenceChange(Preference preference, Object newValue)51 public boolean onPreferenceChange(Preference preference, Object newValue) { 52 mUiModeManager.setNightMode(modeToInt((String) newValue)); 53 updateSummary(preference); 54 return true; 55 } 56 57 @Override updateState(Preference preference)58 public void updateState(Preference preference) { 59 updateSummary(preference); 60 } 61 updateSummary(Preference preference)62 private void updateSummary(Preference preference) { 63 int mode = mUiModeManager.getNightMode(); 64 ((ListPreference) preference).setValue(modeToString(mode)); 65 preference.setSummary(modeToDescription(mode)); 66 } 67 modeToDescription(int mode)68 private String modeToDescription(int mode) { 69 String[] values = mContext.getResources().getStringArray(R.array.dark_ui_mode_entries); 70 switch (mode) { 71 case UiModeManager.MODE_NIGHT_AUTO: 72 return values[0]; 73 case UiModeManager.MODE_NIGHT_YES: 74 return values[1]; 75 case UiModeManager.MODE_NIGHT_NO: 76 default: 77 return values[2]; 78 79 } 80 } 81 modeToString(int mode)82 private String modeToString(int mode) { 83 switch (mode) { 84 case UiModeManager.MODE_NIGHT_AUTO: 85 return "auto"; 86 case UiModeManager.MODE_NIGHT_YES: 87 return "yes"; 88 case UiModeManager.MODE_NIGHT_NO: 89 default: 90 return "no"; 91 92 } 93 } 94 modeToInt(String mode)95 private int modeToInt(String mode) { 96 switch (mode) { 97 case "auto": 98 return UiModeManager.MODE_NIGHT_AUTO; 99 case "yes": 100 return UiModeManager.MODE_NIGHT_YES; 101 case "no": 102 default: 103 return UiModeManager.MODE_NIGHT_NO; 104 } 105 } 106 } 107