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 17 package com.example.android.messagingservice; 18 19 import android.app.PendingIntent; 20 import android.app.Service; 21 import android.content.Intent; 22 import android.graphics.BitmapFactory; 23 import android.os.Handler; 24 import android.os.IBinder; 25 import android.os.Message; 26 import android.os.Messenger; 27 import android.support.v4.app.NotificationCompat.CarExtender; 28 import android.support.v4.app.NotificationCompat.CarExtender.UnreadConversation; 29 import android.support.v4.app.NotificationCompat; 30 import android.support.v4.app.NotificationManagerCompat; 31 import android.support.v4.app.RemoteInput; 32 import android.util.Log; 33 34 import java.util.Iterator; 35 36 public class MessagingService extends Service { 37 private static final String TAG = MessagingService.class.getSimpleName(); 38 39 public static final String READ_ACTION = 40 "com.example.android.messagingservice.ACTION_MESSAGE_READ"; 41 public static final String REPLY_ACTION = 42 "com.example.android.messagingservice.ACTION_MESSAGE_REPLY"; 43 public static final String CONVERSATION_ID = "conversation_id"; 44 public static final String EXTRA_VOICE_REPLY = "extra_voice_reply"; 45 public static final int MSG_SEND_NOTIFICATION = 1; 46 public static final String EOL = "\n"; 47 48 private NotificationManagerCompat mNotificationManager; 49 50 private final Messenger mMessenger = new Messenger(new IncomingHandler()); 51 52 /** 53 * Handler of incoming messages from clients. 54 */ 55 class IncomingHandler extends Handler { 56 @Override 57 public void handleMessage(Message msg) { 58 switch (msg.what) { 59 case MSG_SEND_NOTIFICATION: 60 int howManyConversations = msg.arg1 <= 0 ? 1 : msg.arg1; 61 int messagesPerConv = msg.arg2 <= 0 ? 1 : msg.arg2; 62 sendNotification(howManyConversations, messagesPerConv); 63 break; 64 default: 65 super.handleMessage(msg); 66 } 67 } 68 } 69 70 @Override 71 public void onCreate() { 72 Log.d(TAG, "onCreate"); 73 mNotificationManager = NotificationManagerCompat.from(getApplicationContext()); 74 } 75 76 @Override 77 public IBinder onBind(Intent intent) { 78 Log.d(TAG, "onBind"); 79 return mMessenger.getBinder(); 80 } 81 82 @Override 83 public int onStartCommand(Intent intent, int flags, int startId) { 84 Log.d(TAG, "onStartCommand"); 85 return START_STICKY; 86 } 87 88 @Override 89 public void onDestroy() { 90 super.onDestroy(); 91 Log.d(TAG, "onDestroy"); 92 } 93 94 // Creates an intent that will be triggered when a message is marked as read. 95 private Intent getMessageReadIntent(int id) { 96 return new Intent() 97 .addFlags(Intent.FLAG_INCLUDE_STOPPED_PACKAGES) 98 .setAction(READ_ACTION) 99 .putExtra(CONVERSATION_ID, id); 100 } 101 102 // Creates an Intent that will be triggered when a voice reply is received. 103 private Intent getMessageReplyIntent(int conversationId) { 104 return new Intent() 105 .addFlags(Intent.FLAG_INCLUDE_STOPPED_PACKAGES) 106 .setAction(REPLY_ACTION) 107 .putExtra(CONVERSATION_ID, conversationId); 108 } 109 110 private void sendNotification(int howManyConversations, int messagesPerConversation) { 111 Conversations.Conversation[] conversations = Conversations.getUnreadConversations( 112 howManyConversations, messagesPerConversation); 113 for (Conversations.Conversation conv : conversations) { 114 sendNotificationForConversation(conv); 115 } 116 } 117 118 private void sendNotificationForConversation(Conversations.Conversation conversation) { 119 // A pending Intent for reads 120 PendingIntent readPendingIntent = PendingIntent.getBroadcast(getApplicationContext(), 121 conversation.getConversationId(), 122 getMessageReadIntent(conversation.getConversationId()), 123 PendingIntent.FLAG_UPDATE_CURRENT); 124 125 // Build a RemoteInput for receiving voice input in a Car Notification 126 RemoteInput remoteInput = new RemoteInput.Builder(EXTRA_VOICE_REPLY) 127 .setLabel(getApplicationContext().getString(R.string.notification_reply)) 128 .build(); 129 130 // Building a Pending Intent for the reply action to trigger 131 PendingIntent replyIntent = PendingIntent.getBroadcast(getApplicationContext(), 132 conversation.getConversationId(), 133 getMessageReplyIntent(conversation.getConversationId()), 134 PendingIntent.FLAG_UPDATE_CURRENT); 135 136 // Create the UnreadConversation and populate it with the participant name, 137 // read and reply intents. 138 UnreadConversation.Builder unreadConvBuilder = 139 new UnreadConversation.Builder(conversation.getParticipantName()) 140 .setLatestTimestamp(conversation.getTimestamp()) 141 .setReadPendingIntent(readPendingIntent) 142 .setReplyAction(replyIntent, remoteInput); 143 144 // Note: Add messages from oldest to newest to the UnreadConversation.Builder 145 StringBuilder messageForNotification = new StringBuilder(); 146 for (Iterator<String> messages = conversation.getMessages().iterator(); 147 messages.hasNext(); ) { 148 String message = messages.next(); 149 unreadConvBuilder.addMessage(message); 150 messageForNotification.append(message); 151 if (messages.hasNext()) { 152 messageForNotification.append(EOL); 153 } 154 } 155 156 NotificationCompat.Builder builder = new NotificationCompat.Builder(getApplicationContext()) 157 .setSmallIcon(R.drawable.notification_icon) 158 .setLargeIcon(BitmapFactory.decodeResource( 159 getApplicationContext().getResources(), R.drawable.android_contact)) 160 .setContentText(messageForNotification.toString()) 161 .setWhen(conversation.getTimestamp()) 162 .setContentTitle(conversation.getParticipantName()) 163 .setContentIntent(readPendingIntent) 164 .extend(new CarExtender() 165 .setUnreadConversation(unreadConvBuilder.build()) 166 .setColor(getApplicationContext() 167 .getResources().getColor(R.color.default_color_light))); 168 169 MessageLogger.logMessage(getApplicationContext(), "Sending notification " 170 + conversation.getConversationId() + " conversation: " + conversation); 171 172 mNotificationManager.notify(conversation.getConversationId(), builder.build()); 173 } 174 } 175
