1 /* 2 * Copyright (C) 2017 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.notification; 18 19 import android.app.NotificationChannel; 20 import android.app.NotificationManager; 21 import android.content.Context; 22 import android.provider.Settings; 23 import android.support.v7.preference.Preference; 24 25 import com.android.settings.core.PreferenceControllerMixin; 26 import com.android.settingslib.RestrictedSwitchPreference; 27 import com.android.settingslib.core.lifecycle.Lifecycle; 28 import com.android.settingslib.core.lifecycle.LifecycleObserver; 29 import com.android.settingslib.core.lifecycle.events.OnResume; 30 31 public class LightsPreferenceController extends NotificationPreferenceController 32 implements PreferenceControllerMixin, Preference.OnPreferenceChangeListener { 33 34 private static final String KEY_LIGHTS = "lights"; 35 LightsPreferenceController(Context context, NotificationBackend backend)36 public LightsPreferenceController(Context context, NotificationBackend backend) { 37 super(context, backend); 38 } 39 40 @Override getPreferenceKey()41 public String getPreferenceKey() { 42 return KEY_LIGHTS; 43 } 44 45 @Override isAvailable()46 public boolean isAvailable() { 47 if (!super.isAvailable()) { 48 return false; 49 } 50 if (mChannel == null) { 51 return false; 52 } 53 return checkCanBeVisible(NotificationManager.IMPORTANCE_DEFAULT) 54 && canPulseLight() 55 && !isDefaultChannel(); 56 } 57 updateState(Preference preference)58 public void updateState(Preference preference) { 59 if (mChannel != null) { 60 RestrictedSwitchPreference pref = (RestrictedSwitchPreference) preference; 61 pref.setDisabledByAdmin(mAdmin); 62 pref.setEnabled(isChannelConfigurable() && !pref.isDisabledByAdmin()); 63 pref.setChecked(mChannel.shouldShowLights()); 64 } 65 } 66 67 @Override onPreferenceChange(Preference preference, Object newValue)68 public boolean onPreferenceChange(Preference preference, Object newValue) { 69 if (mChannel != null) { 70 final boolean lights = (Boolean) newValue; 71 mChannel.enableLights(lights); 72 saveChannel(); 73 } 74 return true; 75 } 76 canPulseLight()77 boolean canPulseLight() { 78 if (!mContext.getResources() 79 .getBoolean(com.android.internal.R.bool.config_intrusiveNotificationLed)) { 80 return false; 81 } 82 return Settings.System.getInt(mContext.getContentResolver(), 83 Settings.System.NOTIFICATION_LIGHT_PULSE, 0) == 1; 84 } 85 86 } 87