109db5b4e1
1. layout fixes 2. name changes in sample. (redo of ag/586904 which was lost from lmp-docs) Change-Id: I3a2afafb5b878ba90b8ae6314220af19b3dfbb09
127 lines
4.0 KiB
Java
127 lines
4.0 KiB
Java
/*
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* Copyright (C) 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.example.android.messagingservice;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.Collections;
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import java.util.List;
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import java.util.concurrent.ThreadLocalRandom;
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/**
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* A simple class that denotes unread conversations and messages. In a real world application,
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* this would be replaced by a content provider that actually gets the unread messages to be
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* shown to the user.
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*/
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public class Conversations {
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/**
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* Set of strings used as messages by the sample.
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*/
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private static final String[] MESSAGES = new String[]{
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"Are you at home?",
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"Can you give me a call?",
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"Hey yt?",
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"Don't forget to get some milk on your way back home",
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"Is that project done?",
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"Did you finish the Messaging app yet?"
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};
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/**
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* Senders of the said messages.
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*/
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private static final String[] PARTICIPANTS = new String[]{
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"John Smith",
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"Robert Lawrence",
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"James Smith",
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"Jane Doe"
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};
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static class Conversation {
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private final int conversationId;
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private final String participantName;
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/**
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* A given conversation can have a single or multiple messages.
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* Note that the messages are sorted from *newest* to *oldest*
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*/
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private final List<String> messages;
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private final long timestamp;
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public Conversation(int conversationId, String participantName,
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List<String> messages) {
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this.conversationId = conversationId;
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this.participantName = participantName;
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this.messages = messages == null ? Collections.<String>emptyList() : messages;
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this.timestamp = System.currentTimeMillis();
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}
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public int getConversationId() {
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return conversationId;
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}
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public String getParticipantName() {
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return participantName;
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}
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public List<String> getMessages() {
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return messages;
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}
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public long getTimestamp() {
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return timestamp;
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}
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public String toString() {
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return "[Conversation: conversationId=" + conversationId +
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", participantName=" + participantName +
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", messages=" + messages +
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", timestamp=" + timestamp + "]";
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}
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}
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private Conversations() {
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}
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public static Conversation[] getUnreadConversations(int howManyConversations,
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int messagesPerConversation) {
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Conversation[] conversations = new Conversation[howManyConversations];
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for (int i = 0; i < howManyConversations; i++) {
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conversations[i] = new Conversation(
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ThreadLocalRandom.current().nextInt(),
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name(), makeMessages(messagesPerConversation));
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}
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return conversations;
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}
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private static List<String> makeMessages(int messagesPerConversation) {
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int maxLen = MESSAGES.length;
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List<String> messages = new ArrayList<>(messagesPerConversation);
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for (int i = 0; i < messagesPerConversation; i++) {
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messages.add(MESSAGES[ThreadLocalRandom.current().nextInt(0, maxLen)]);
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}
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return messages;
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}
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private static String name() {
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return PARTICIPANTS[ThreadLocalRandom.current().nextInt(0, PARTICIPANTS.length)];
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}
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}
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