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.content.ContentResolver; 20 import android.content.Context; 21 import android.database.ContentObserver; 22 import android.net.Uri; 23 import android.os.Handler; 24 import android.provider.Settings; 25 import android.support.v7.preference.Preference; 26 import android.support.v7.preference.PreferenceScreen; 27 import android.support.v7.preference.TwoStatePreference; 28 import android.util.Log; 29 30 import com.android.settings.core.PreferenceController; 31 import com.android.settings.core.lifecycle.LifecycleObserver; 32 import com.android.settings.core.lifecycle.events.OnPause; 33 import com.android.settings.core.lifecycle.events.OnResume; 34 35 import static android.provider.Settings.Secure.NOTIFICATION_BADGING; 36 37 public class BadgingNotificationPreferenceController extends PreferenceController implements 38 Preference.OnPreferenceChangeListener, LifecycleObserver, OnResume, OnPause { 39 40 private static final String TAG = "BadgeNotifPrefContr"; 41 private static final String KEY_NOTIFICATION_BADGING = "notification_badging"; 42 private static final int DEFAULT_VALUE = 1; 43 44 private SettingObserver mSettingObserver; 45 BadgingNotificationPreferenceController(Context context)46 public BadgingNotificationPreferenceController(Context context) { 47 super(context); 48 } 49 50 @Override displayPreference(PreferenceScreen screen)51 public void displayPreference(PreferenceScreen screen) { 52 super.displayPreference(screen); 53 Preference preference = screen.findPreference(NOTIFICATION_BADGING); 54 if (preference != null) { 55 mSettingObserver = new SettingObserver(preference); 56 } 57 } 58 59 @Override onResume()60 public void onResume() { 61 if (mSettingObserver != null) { 62 mSettingObserver.register(mContext.getContentResolver(), true /* register */); 63 } 64 } 65 66 @Override onPause()67 public void onPause() { 68 if (mSettingObserver != null) { 69 mSettingObserver.register(mContext.getContentResolver(), false /* register */); 70 } 71 } 72 73 @Override getPreferenceKey()74 public String getPreferenceKey() { 75 return KEY_NOTIFICATION_BADGING; 76 } 77 78 @Override isAvailable()79 public boolean isAvailable() { 80 return mContext.getResources() 81 .getBoolean(com.android.internal.R.bool.config_notificationBadging); 82 } 83 84 @Override updateState(Preference preference)85 public void updateState(Preference preference) { 86 final boolean checked = Settings.Secure.getInt(mContext.getContentResolver(), 87 NOTIFICATION_BADGING, DEFAULT_VALUE) == 1; 88 ((TwoStatePreference) preference).setChecked(checked); 89 } 90 91 @Override onPreferenceChange(Preference preference, Object newValue)92 public boolean onPreferenceChange(Preference preference, Object newValue) { 93 final boolean val = (Boolean) newValue; 94 return Settings.Secure.putInt(mContext.getContentResolver(), 95 NOTIFICATION_BADGING, val ? 1 : 0); 96 } 97 98 class SettingObserver extends ContentObserver { 99 100 private final Uri NOTIFICATION_BADGING_URI = 101 Settings.Secure.getUriFor(NOTIFICATION_BADGING); 102 103 private final Preference mPreference; 104 SettingObserver(Preference preference)105 public SettingObserver(Preference preference) { 106 super(new Handler()); 107 mPreference = preference; 108 } 109 register(ContentResolver cr, boolean register)110 public void register(ContentResolver cr, boolean register) { 111 if (register) { 112 cr.registerContentObserver(NOTIFICATION_BADGING_URI, false, this); 113 } else { 114 cr.unregisterContentObserver(this); 115 } 116 } 117 118 @Override onChange(boolean selfChange, Uri uri)119 public void onChange(boolean selfChange, Uri uri) { 120 super.onChange(selfChange, uri); 121 if (NOTIFICATION_BADGING_URI.equals(uri)) { 122 updateState(mPreference); 123 } 124 } 125 } 126 } 127