Chris Wren | f715fd9 | 2014-05-07 17:44:21 -0400 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (C) 2014 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 | package com.android.example.notificationlistener; |
| 17 | |
| 18 | |
| 19 | import android.app.Notification; |
| 20 | import android.app.PendingIntent; |
| 21 | import android.content.BroadcastReceiver; |
| 22 | import android.content.Context; |
| 23 | import android.content.Intent; |
| 24 | import android.content.IntentFilter; |
| 25 | import android.os.Handler; |
| 26 | import android.os.Message; |
| 27 | import android.service.notification.NotificationListenerService; |
| 28 | import android.service.notification.StatusBarNotification; |
| 29 | import android.support.v4.content.LocalBroadcastManager; |
| 30 | import android.text.TextUtils; |
| 31 | import android.util.Log; |
| 32 | |
| 33 | import java.util.ArrayList; |
| 34 | import java.util.Arrays; |
| 35 | import java.util.Collections; |
| 36 | import java.util.List; |
| 37 | |
| 38 | public class Listener extends NotificationListenerService { |
| 39 | private static final String TAG = "SampleListener"; |
| 40 | |
| 41 | // Message tags |
| 42 | private static final int MSG_NOTIFY = 1; |
| 43 | private static final int MSG_CANCEL = 2; |
| 44 | private static final int MSG_STARTUP = 3; |
| 45 | private static final int MSG_ORDER = 4; |
| 46 | private static final int MSG_DISMISS = 5; |
| 47 | private static final int MSG_LAUNCH = 6; |
| 48 | private static final int PAGE = 10; |
| 49 | |
| 50 | static final String ACTION_DISMISS = "com.android.example.notificationlistener.DISMISS"; |
| 51 | static final String ACTION_LAUNCH = "com.android.example.notificationlistener.LAUNCH"; |
| 52 | static final String ACTION_REFRESH = "com.android.example.notificationlistener.REFRESH"; |
| 53 | static final String EXTRA_KEY = "key"; |
| 54 | |
| 55 | private static ArrayList<StatusBarNotification> sNotifications; |
| 56 | |
| 57 | public static List<StatusBarNotification> getNotifications() { |
| 58 | return sNotifications; |
| 59 | } |
| 60 | |
| 61 | private OrderedNotificationsHelper mOrderHelper; |
| 62 | |
| 63 | private class Delta { |
| 64 | final StatusBarNotification mSbn; |
| 65 | final String[] mKeys; |
| 66 | |
| 67 | public Delta(StatusBarNotification sbn, String[] update) { |
| 68 | mSbn = sbn; |
| 69 | mKeys = update; |
| 70 | } |
| 71 | } |
| 72 | |
| 73 | private final BroadcastReceiver mBroadcastReceiver = new BroadcastReceiver() { |
| 74 | @Override |
| 75 | public void onReceive(Context context, Intent intent) { |
| 76 | String key = intent.getStringExtra(EXTRA_KEY); |
| 77 | int what = MSG_DISMISS; |
| 78 | if (ACTION_LAUNCH.equals(intent.getAction())) { |
| 79 | what = MSG_LAUNCH; |
| 80 | } |
| 81 | Log.d(TAG, "received an action broadcast " + intent.getAction()); |
| 82 | if (!TextUtils.isEmpty(key)) { |
| 83 | Log.d(TAG, " on " + key); |
| 84 | Message.obtain(mHandler, what, key).sendToTarget(); |
| 85 | } |
| 86 | } |
| 87 | }; |
| 88 | |
| 89 | Handler mHandler = new Handler() { |
| 90 | @Override |
| 91 | public void handleMessage(Message msg) { |
| 92 | Delta delta = null; |
| 93 | if (msg.obj instanceof Delta) { |
| 94 | delta = (Delta) msg.obj; |
| 95 | } |
| 96 | switch (msg.what) { |
| 97 | case MSG_NOTIFY: |
| 98 | Log.i(TAG, "notify: " + delta.mSbn.getKey()); |
| 99 | synchronized (sNotifications) { |
| 100 | int position = mOrderHelper.getIndex(delta.mSbn.getKey()); |
| 101 | if (position == -1) { |
| 102 | sNotifications.add(delta.mSbn); |
| 103 | } else { |
| 104 | sNotifications.set(position, delta.mSbn); |
| 105 | } |
| 106 | mOrderHelper.updateKeyOrder(delta.mKeys); |
| 107 | Collections.sort(sNotifications, mOrderHelper); |
| 108 | Log.i(TAG, "finish with: " + sNotifications.size()); |
| 109 | } |
| 110 | LocalBroadcastManager.getInstance(Listener.this) |
| 111 | .sendBroadcast(new Intent(ACTION_REFRESH) |
| 112 | .putExtra(EXTRA_KEY, delta.mSbn.getKey())); |
| 113 | break; |
| 114 | |
| 115 | case MSG_CANCEL: |
| 116 | Log.i(TAG, "remove: " + delta.mSbn.getKey()); |
| 117 | synchronized (sNotifications) { |
| 118 | int position = mOrderHelper.getIndex(delta.mSbn.getKey()); |
| 119 | if (position != -1) { |
| 120 | sNotifications.remove(position); |
| 121 | } |
| 122 | mOrderHelper.updateKeyOrder(delta.mKeys); |
| 123 | Collections.sort(sNotifications, mOrderHelper); |
| 124 | } |
| 125 | LocalBroadcastManager.getInstance(Listener.this) |
| 126 | .sendBroadcast(new Intent(ACTION_REFRESH)); |
| 127 | break; |
| 128 | |
| 129 | case MSG_ORDER: |
| 130 | Log.i(TAG, "reorder"); |
| 131 | synchronized (sNotifications) { |
| 132 | mOrderHelper.updateKeyOrder(delta.mKeys); |
| 133 | Collections.sort(sNotifications, mOrderHelper); |
| 134 | } |
| 135 | LocalBroadcastManager.getInstance(Listener.this) |
| 136 | .sendBroadcast(new Intent(ACTION_REFRESH)); |
| 137 | break; |
| 138 | |
| 139 | case MSG_STARTUP: |
| 140 | fetchActive(); |
| 141 | Log.i(TAG, "start with: " + sNotifications.size() + " notifications."); |
| 142 | LocalBroadcastManager.getInstance(Listener.this) |
| 143 | .sendBroadcast(new Intent(ACTION_REFRESH)); |
| 144 | break; |
| 145 | |
| 146 | case MSG_DISMISS: |
| 147 | if (msg.obj instanceof String) { |
| 148 | final String key = (String) msg.obj; |
| 149 | StatusBarNotification sbn = sNotifications.get(mOrderHelper.getIndex(key)); |
| 150 | if ((sbn.getNotification().flags & Notification.FLAG_AUTO_CANCEL) != 0 && |
| 151 | sbn.getNotification().contentIntent != null) { |
| 152 | try { |
| 153 | sbn.getNotification().contentIntent.send(); |
| 154 | } catch (PendingIntent.CanceledException e) { |
| 155 | Log.d(TAG, "failed to send intent for " + sbn.getKey(), e); |
| 156 | } |
| 157 | } |
| 158 | cancelNotification(key); |
| 159 | } |
| 160 | break; |
| 161 | |
| 162 | case MSG_LAUNCH: |
| 163 | if (msg.obj instanceof String) { |
| 164 | final String key = (String) msg.obj; |
| 165 | StatusBarNotification sbn = sNotifications.get(mOrderHelper.getIndex(key)); |
| 166 | if (sbn.getNotification().contentIntent != null) { |
| 167 | try { |
| 168 | sbn.getNotification().contentIntent.send(); |
| 169 | } catch (PendingIntent.CanceledException e) { |
| 170 | Log.d(TAG, "failed to send intent for " + sbn.getKey(), e); |
| 171 | } |
| 172 | } |
| 173 | if ((sbn.getNotification().flags & Notification.FLAG_AUTO_CANCEL) != 0) { |
| 174 | cancelNotification(key); |
| 175 | } |
| 176 | } |
| 177 | break; |
| 178 | } |
| 179 | } |
| 180 | }; |
| 181 | |
| 182 | @Override |
| 183 | public void onCreate() { |
| 184 | super.onCreate(); |
| 185 | Log.d(TAG, "registering broadcast listener"); |
| 186 | final IntentFilter intentFilter = new IntentFilter(); |
| 187 | intentFilter.addAction(ACTION_DISMISS); |
| 188 | intentFilter.addAction(ACTION_LAUNCH); |
| 189 | LocalBroadcastManager.getInstance(this).registerReceiver(mBroadcastReceiver, intentFilter); |
| 190 | } |
| 191 | |
| 192 | @Override |
| 193 | public void onDestroy() { |
| 194 | LocalBroadcastManager.getInstance(this).unregisterReceiver(mBroadcastReceiver); |
| 195 | super.onDestroy(); |
| 196 | } |
| 197 | |
| 198 | @Override |
| 199 | public void onListenerConnected(String[] notificationKeys) { |
| 200 | Message.obtain(mHandler, MSG_STARTUP).sendToTarget(); |
| 201 | } |
| 202 | |
| 203 | @Override |
| 204 | public void onNotificationOrderUpdate() { |
| 205 | Message.obtain(mHandler, MSG_ORDER, |
| 206 | new Delta(null, getOrderedNotificationKeys())).sendToTarget(); |
| 207 | } |
| 208 | |
| 209 | @Override |
| 210 | public void onNotificationPosted(StatusBarNotification sbn) { |
| 211 | Message.obtain(mHandler, MSG_NOTIFY, |
| 212 | new Delta(sbn, getOrderedNotificationKeys())).sendToTarget(); |
| 213 | } |
| 214 | |
| 215 | @Override |
| 216 | public void onNotificationRemoved(StatusBarNotification sbn) { |
| 217 | Message.obtain(mHandler, MSG_CANCEL, |
| 218 | new Delta(sbn, getOrderedNotificationKeys())).sendToTarget(); |
| 219 | } |
| 220 | |
| 221 | private void fetchActive() { |
| 222 | String[] keys = getOrderedNotificationKeys(); |
| 223 | sNotifications = new ArrayList<StatusBarNotification>(); |
| 224 | sNotifications.clear(); |
| 225 | for (int i = 0; i < keys.length; i += PAGE) { |
| 226 | final int j = (i + PAGE < keys.length ? i + PAGE : keys.length); |
| 227 | String[] fetchKeys = Arrays.copyOfRange(keys, i, j); |
| 228 | StatusBarNotification[] sbns = getActiveNotifications(fetchKeys); |
| 229 | for(int s = 0; s < sbns.length; s++) { |
| 230 | // unfortunately cloneLight() is hidden |
| 231 | sNotifications.add(sbns[s]); |
| 232 | } |
| 233 | } |
| 234 | mOrderHelper = new OrderedNotificationsHelper(keys); |
| 235 | Collections.sort(sNotifications, mOrderHelper); |
| 236 | } |
| 237 | } |