Android开发实战《智慧北京》——7.项目拓展
文章目录
- 1.极光推送
-
- 1.1 基本使用
- 1.2 极光推送的高级使用
- 1.3 推送原理介绍
- 2.科大讯飞
-
- 2.1 语音听写
- 2.2 语音合成
- 2.3 聊天机器人：布局搭建
- 2.4 聊天机器人：数据填充
- 2.5 聊天机器人：语音数据解析 & 展示提问对象
- 2.6 聊天机器人：展示回答对象 & 朗读回答
- 3.友盟统计
-
- 3.1 介绍 & SDK使用
- 3.2 友盟指数
- 4.ZXing
- 5.DynamicGrid
1.极光推送
1.1 基本使用
消息推送，类似于社交工具中QQ、微信中的聊天功能，即消息之间的传输，其原理图如下所示：
消息推送的主要特点，是指客户端被动接收服务端的消息，即使客户端和服务端没有相连。而消息推送的应用也不局限于聊天功能，还应用在广告推送、私信推送等
要实现消息推送的技术，就需要引入一个第三方的框架：JPush（极光推送），而JPush的使用，可以参考此篇集成文档：http://docs.jiguang.cn/jpush/client/Android/android_guide/，这里不再详述。
而想用快速创建demo，则可参考http://docs.jiguang.cn/jpush/client/Android/android_3m/来实现，这里不再详述
1.2 极光推送的高级使用
想要进行极光推送的高级使用，可参考http://docs.jiguang.cn/jpush/client/Android/android_api/，这里不再详述
1.3 推送原理介绍
在客户端和服务端之间，一般进行一次数据的发送和接收后就会断开相互的连接。然而，在消息推送中，这样的连接在数据传输的过程中不会断开，则称为长连接
-
在Http1.1之后，支持长连接
-
xmpp协议，专门适用于消息推送，此种协议更加精简，没有过多冗余的数据
-
socket，套接字，网络底层实现
-
TCP、UDP，传输协议
-
心跳包：客户端每隔一段时间（比如说30秒）向服务器发送一段极短的数据，来证明自己还“活着”
2.科大讯飞
2.1 语音听写
要实现这个功能，同样需要借助一个第三方框架——科大讯飞语音云，官方网站为：https://www.xfyun.cn/
在这里要实现语音听写的功能，网站为：https://www.xfyun.cn/services/voicedictation
这里不再详述
2.2 语音合成
在这里要实现语音合成的功能，网站为：https://www.xfyun.cn/services/online_tts
这里不再详述
2.3 聊天机器人：布局搭建
通过科大讯飞的这些api，可以实现一个简单的聊天机器人的应用
聊天菜单可用ListView来实现，而每一条聊天记录可用item来实现
- 新建一个项目，导入科大讯飞的jar包，然后修改activity_main.xml，在此之前导入相关图片资源，代码如下：
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<ListView
android:id="@+id/lv_list"
android:layout_width="match_parent"
android:layout_height="0dp"
android:divider="@null"
android:layout_weight="1"/>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@drawable/bottom_bar">
<Button
android:id="@+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@drawable/btn_selector"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:onClick="startVoice"
android:text="点击开始语音识别"/>
RelativeLayout>
LinearLayout>
- 在drawable目录下建立按钮的状态选择器文件btn_selector.xml，代码如下：
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_pressed="true" android:drawable="@drawable/btn_voice_search_pressed"/>
<item android:drawable="@drawable/btn_voice_search_normal"/>
selector>
2.4 聊天机器人：数据填充
前面将布局搭建好了，接下来就是为ListView填充数据
- 修改MainActivity，获取ListView的实例，并且注册适配器，代码如下：
package com.example.chatrobot;
import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ListView;
public class MainActivity extends AppCompatActivity {
private ListView lvList;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
lvList = findViewById(R.id.lv_list);
}
public void startVoice(View view){
}
class ChatAdapter extends BaseAdapter{
@Override
public int getCount() {
return 0;
}
@Override
public Object getItem(int position) {
return null;
}
@Override
public long getItemId(int position) {
return 0;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
return null;
}
}
}
- 建立ListView的子布局文件list_item.xml，代码如下：
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<TextView
android:id="@+id/tv_ask"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:background="@drawable/asker_bubble"
android:gravity="center"
android:paddingLeft="10dp"
android:paddingRight="15dp"
android:textColor="#000"
android:textSize="16sp"
android:text="提问"/>
<LinearLayout
android:id="@+id/ll_answer"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="5dp"
android:paddingLeft="15dp"
android:paddingRight="10dp"
android:layout_below="@id/tv_ask"
android:background="@drawable/answer_bubble"
android:orientation="vertical">
<TextView
android:id="@+id/tv_answer"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical"
android:textColor="#000"
android:textSize="16sp"
android:text="回答"/>
<ImageView
android:id="@+id/iv_answer"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:visibility="gone"
android:src="@drawable/p1"/>
LinearLayout>
RelativeLayout>
- 修改MainActivity，引用刚刚创建好的布局，并创建内部类ViewHolder，代码如下：
package com.example.chatrobot;
import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.TextView;
public class MainActivity extends AppCompatActivity {
private ListView lvList;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
lvList = findViewById(R.id.lv_list);
}
public void startVoice(View view){
}
class ChatAdapter extends BaseAdapter{
@Override
public int getCount() {
return 0;
}
@Override
public Object getItem(int position) {
return null;
}
@Override
public long getItemId(int position) {
return 0;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder;
if (convertView == null){
convertView = View.inflate(getApplicationContext(),R.layout.list_item,null);
holder = new ViewHolder();
holder.tvAsk = convertView.findViewById(R.id.tv_ask);
holder.tvAnswer = convertView.findViewById(R.id.tv_answer);
holder.llAnswer = convertView.findViewById(R.id.ll_answer);
holder.ivAnswer = convertView.findViewById(R.id.iv_answer);
convertView.setTag(holder);
}else {
holder = (ViewHolder) convertView.getTag();
}
return convertView;
}
}
static class ViewHolder{
public TextView tvAsk;
public TextView tvAnswer;
public LinearLayout llAnswer;
public ImageView ivAnswer;
}
}
- 建立TalkBean类，作为每句对话的实体类对象，代码如下：
package com.example.chatrobot;
public class TalkBean {
public String content;
public boolean isAsk;
public int imageId = -1;
public TalkBean(String content, boolean isAsk, int imageId) {
this.content = content;
this.isAsk = isAsk;
this.imageId = imageId;
}
}
- 修改MainActivity，用ArrayList来存储刚刚创建好的对象，并且进行相应调用，将ListView和Adapter进行匹配，代码如下：
package com.example.chatrobot;
import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.TextView;
import java.util.ArrayList;
public class MainActivity extends AppCompatActivity {
private ListView lvList;
private ArrayList<TalkBean> mTalkList = new ArrayList<>();
private ChatAdapter mAdapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
lvList = findViewById(R.id.lv_list);
mAdapter = new ChatAdapter();
lvList.setAdapter(mAdapter);
}
public void startVoice(View view){
}
class ChatAdapter extends BaseAdapter{
@Override
public int getCount() {
return mTalkList.size();
}
@Override
public TalkBean getItem(int position) {
return mTalkList.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder;
if (convertView == null){
convertView = View.inflate(getApplicationContext(),R.layout.list_item,null);
holder = new ViewHolder();
holder.tvAsk = convertView.findViewById(R.id.tv_ask);
holder.tvAnswer = convertView.findViewById(R.id.tv_answer);
holder.llAnswer = convertView.findViewById(R.id.ll_answer);
holder.ivAnswer = convertView.findViewById(R.id.iv_answer);
convertView.setTag(holder);
}else {
holder = (ViewHolder) convertView.getTag();
}
TalkBean item = getItem(position);
if (item.isAsk){
// 提问
holder.tvAsk.setVisibility(View.VISIBLE);
holder.llAnswer.setVisibility(View.GONE);
holder.tvAsk.setText(item.content);
}else {
holder.tvAsk.setVisibility(View.GONE);
holder.llAnswer.setVisibility(View.VISIBLE);
holder.tvAnswer.setText(item.content);
if (item.imageId > 0){
// 有图片
holder.ivAnswer.setVisibility(View.VISIBLE);
holder.ivAnswer.setImageResource(item.imageId);
}else {
// 无图片
holder.ivAnswer.setVisibility(View.GONE);
}
}
return convertView;
}
}
static class ViewHolder{
public TextView tvAsk;
public TextView tvAnswer;
public LinearLayout llAnswer;
public ImageView ivAnswer;
}
}
2.5 聊天机器人：语音数据解析 & 展示提问对象
现在我们完成了数据的填充，接下来就要开始运用到科大讯飞的语音听写api了
- 修改MainActivity，完善startVoice()方法，代码如下：
public void startVoice(View view){
RecognizerDialog mDialog = new RecognizerDialog(this, null);
mDialog.setParameter(SpeechConstant.LANGUAGE,"zh_cn");
mDialog.setParameter(SpeechConstant.ACCENT,"mandarin");
mDialog.setListener(new RecognizerDialogListener() {
@Override
public void onResult(RecognizerResult recognizerResult, boolean b) {
String result = recognizerResult.getResultString();
}
@Override
public void onError(SpeechError speechError) {
}
});
mDialog.show();
}
- 由于要使用GSON来解析语音识别后的JSON数据，这里需要创建一个实体类VoiceBean，代码如下：
package com.example.chatrobot;
import java.util.ArrayList;
public class VoiceBean {
public ArrayList<WsBean> ws;
public class WsBean{
public ArrayList<CwBean> cw;
}
public class CwBean{
public String w;
}
}
- 修改MainActivity，添加processData()方法，引入GSON来解析json数据，代码如下：
package com.example.chatrobot;
import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.TextView;
import com.google.gson.Gson;
import com.iflytek.cloud.RecognizerResult;
import com.iflytek.cloud.SpeechConstant;
import com.iflytek.cloud.SpeechError;
import com.iflytek.cloud.SpeechUtility;
import com.iflytek.cloud.ui.RecognizerDialog;
import com.iflytek.cloud.ui.RecognizerDialogListener;
import java.util.ArrayList;
public class MainActivity extends AppCompatActivity {
private ListView lvList;
private ArrayList<TalkBean> mTalkList = new ArrayList<>();
private ChatAdapter mAdapter;
private StringBuffer mBuffer;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
SpeechUtility.createUtility(this, SpeechConstant.APPID +"=5bfca40b");
lvList = findViewById(R.id.lv_list);
mAdapter = new ChatAdapter();
lvList.setAdapter(mAdapter);
}
public void startVoice(View view){
RecognizerDialog mDialog = new RecognizerDialog(this, null);
mDialog.setParameter(SpeechConstant.LANGUAGE,"zh_cn");
mDialog.setParameter(SpeechConstant.ACCENT,"mandarin");
mBuffer = new StringBuffer();
mDialog.setListener(new RecognizerDialogListener() {
@Override
public void onResult(RecognizerResult recognizerResult, boolean b) {
String result = recognizerResult.getResultString();
String resultStriing = processData(result);
mBuffer.append(resultStriing);
if (b){
// 话已经说完了
String finalResult = mBuffer.toString();
}
}
@Override
public void onError(SpeechError speechError) {
}
});
mDialog.show();
}
private String processData(String result) {
Gson gson = new Gson();
VoiceBean voiceBean = gson.fromJson(result, VoiceBean.class);
StringBuffer sb = new StringBuffer();
for (VoiceBean.WsBean ws : voiceBean.ws) {
String word = ws.cw.get(0).w;
sb.append(word);
}
return sb.toString();
}
class ChatAdapter extends BaseAdapter{
@Override
public int getCount() {
return mTalkList.size();
}
@Override
public TalkBean getItem(int position) {
return mTalkList.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder;
if (convertView == null){
convertView = View.inflate(getApplicationContext(),R.layout.list_item,null);
holder = new ViewHolder();
holder.tvAsk = convertView.findViewById(R.id.tv_ask);
holder.tvAnswer = convertView.findViewById(R.id.tv_answer);
holder.llAnswer = convertView.findViewById(R.id.ll_answer);
holder.ivAnswer = convertView.findViewById(R.id.iv_answer);
convertView.setTag(holder);
}else {
holder = (ViewHolder) convertView.getTag();
}
TalkBean item = getItem(position);
if (item.isAsk){
// 提问
holder.tvAsk.setVisibility(View.VISIBLE);
holder.llAnswer.setVisibility(View.GONE);
holder.tvAsk.setText(item.content);
}else {
holder.tvAsk.setVisibility(View.GONE);
holder.llAnswer.setVisibility(View.VISIBLE);
holder.tvAnswer.setText(item.content);
if (item.imageId > 0){
// 有图片
holder.ivAnswer.setVisibility(View.VISIBLE);
holder.ivAnswer.setImageResource(item.imageId);
}else {
// 无图片
holder.ivAnswer.setVisibility(View.GONE);
}
}
return convertView;
}
}
static class ViewHolder{
public TextView tvAsk;
public TextView tvAnswer;
public LinearLayout llAnswer;
public ImageView ivAnswer;
}
}
- 修改MainActivity，修改startVoice()方法，将解析后的字符串初始化为提问语句，并添加到集合中，代码如下：
public void startVoice(View view){
RecognizerDialog mDialog = new RecognizerDialog(this, null);
mDialog.setParameter(SpeechConstant.LANGUAGE,"zh_cn");
mDialog.setParameter(SpeechConstant.ACCENT,"mandarin");
mBuffer = new StringBuffer();
mDialog.setListener(new RecognizerDialogListener() {
@Override
public void onResult(RecognizerResult recognizerResult, boolean b) {
String result = recognizerResult.getResultString();
String resultStriing = processData(result);
mBuffer.append(resultStriing);
if (b){
// 话已经说完了
String finalResult = mBuffer.toString();
// 初始化提问对象
TalkBean askBean = new TalkBean(finalResult,true,-1);
mTalkList.add(askBean);
mAdapter.notifyDataSetChanged(); // 刷新ListView
}
}
@Override
public void onError(SpeechError speechError) {
}
});
mDialog.show();
}
2.6 聊天机器人：展示回答对象 & 朗读回答
之前创建好了提问的对象，现在就来创建回答的对象
- 修改MainActivity，修改startVoice()方法，初始化提问对象，编写回话逻辑，代码如下：
package com.example.chatrobot;
import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.TextView;
import com.google.gson.Gson;
import com.iflytek.cloud.RecognizerResult;
import com.iflytek.cloud.SpeechConstant;
import com.iflytek.cloud.SpeechError;
import com.iflytek.cloud.SpeechUtility;
import com.iflytek.cloud.ui.RecognizerDialog;
import com.iflytek.cloud.ui.RecognizerDialogListener;
import java.util.ArrayList;
public class MainActivity extends AppCompatActivity {
private ListView lvList;
private ArrayList<TalkBean> mTalkList = new ArrayList<>();
private ChatAdapter mAdapter;
private StringBuffer mBuffer;
private String[] mAnswers = new String[]{"约吗？","这张怎么样？","100块啦","不要再要啦","最后一张啦"};
private int[] mImageIds = new int[]{R.drawable.p1,R.drawable.p2,R.drawable.p3,R.drawable.p4};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
SpeechUtility.createUtility(this, SpeechConstant.APPID +"=5bfca40b");
lvList = findViewById(R.id.lv_list);
mAdapter = new ChatAdapter();
lvList.setAdapter(mAdapter);
}
public void startVoice(View view){
RecognizerDialog mDialog = new RecognizerDialog(this, null);
mDialog.setParameter(SpeechConstant.LANGUAGE,"zh_cn");
mDialog.setParameter(SpeechConstant.ACCENT,"mandarin");
mBuffer = new StringBuffer();
mDialog.setListener(new RecognizerDialogListener() {
@Override
public void onResult(RecognizerResult recognizerResult, boolean b) {
String result = recognizerResult.getResultString();
String resultStriing = processData(result);
mBuffer.append(resultStriing);
if (b){
// 话已经说完了
String finalResult = mBuffer.toString();
// 初始化提问对象
TalkBean askBean = new TalkBean(finalResult,true,-1);
mTalkList.add(askBean);
// 初始化回答对象
String answerContent = "没听清";
int imageId = -1;
if (finalResult.contains("你好")){
answerContent = "你好呀！";
}else if (finalResult.contains("你是谁")){
answerContent = "我是你的小助手！";
}else if (finalResult.contains("美女")){
// 随机回答
int i = (int) (Math.random() * mAnswers.length);
answerContent = mAnswers[i];
// 随机图片
int j = (int) (Math.random() * mImageIds.length);
imageId = mImageIds[j];
}else if (finalResult.contains("天王盖地虎")){
answerContent = "小鸡炖蘑菇";
imageId = R.drawable.m;
}
TalkBean answerBean = new TalkBean(answerContent,false,imageId);
mTalkList.add(answerBean);
mAdapter.notifyDataSetChanged(); // 刷新ListView
lvList.setSelection(mTalkList.size() - 1);// 显示在最后一个Item上
}
}
@Override
public void onError(SpeechError speechError) {
}
});
mDialog.show();
}
private String processData(String result) {
Gson gson = new Gson();
VoiceBean voiceBean = gson.fromJson(result, VoiceBean.class);
StringBuffer sb = new StringBuffer();
for (VoiceBean.WsBean ws : voiceBean.ws) {
String word = ws.cw.get(0).w;
sb.append(word);
}
return sb.toString();
}
class ChatAdapter extends BaseAdapter{
@Override
public int getCount() {
return mTalkList.size();
}
@Override
public TalkBean getItem(int position) {
return mTalkList.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder;
if (convertView == null){
convertView = View.inflate(getApplicationContext(),R.layout.list_item,null);
holder = new ViewHolder();
holder.tvAsk = convertView.findViewById(R.id.tv_ask);
holder.tvAnswer = convertView.findViewById(R.id.tv_answer);
holder.llAnswer = convertView.findViewById(R.id.ll_answer);
holder.ivAnswer = convertView.findViewById(R.id.iv_answer);
convertView.setTag(holder);
}else {
holder = (ViewHolder) convertView.getTag();
}
TalkBean item = getItem(position);
if (item.isAsk){
// 提问
holder.tvAsk.setVisibility(View.VISIBLE);
holder.llAnswer.setVisibility(View.GONE);
holder.tvAsk.setText(item.content);
}else {
holder.tvAsk.setVisibility(View.GONE);
holder.llAnswer.setVisibility(View.VISIBLE);
holder.tvAnswer.setText(item.content);
if (item.imageId > 0){
// 有图片
holder.ivAnswer.setVisibility(View.VISIBLE);
holder.ivAnswer.setImageResource(item.imageId);
}else {
// 无图片
holder.ivAnswer.setVisibility(View.GONE);
}
}
return convertView;
}
}
static class ViewHolder{
public TextView tvAsk;
public TextView tvAnswer;
public LinearLayout llAnswer;
public ImageView ivAnswer;
}
}
- 修改MainActivity，添加startSpeak()方法，用于将回答内容朗诵出来，代码如下：
package com.example.chatrobot;
import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.TextView;
import com.google.gson.Gson;
import com.iflytek.cloud.RecognizerResult;
import com.iflytek.cloud.SpeechConstant;
import com.iflytek.cloud.SpeechError;
import com.iflytek.cloud.SpeechSynthesizer;
import com.iflytek.cloud.SpeechUtility;
import com.iflytek.cloud.ui.RecognizerDialog;
import com.iflytek.cloud.ui.RecognizerDialogListener;
import java.util.ArrayList;
public class MainActivity extends AppCompatActivity {
private ListView lvList;
private ArrayList<TalkBean> mTalkList = new ArrayList<>();
private ChatAdapter mAdapter;
private StringBuffer mBuffer;
private String[] mAnswers = new String[]{"约吗？","这张怎么样？","100块啦","不要再要啦","最后一张啦"};
private int[] mImageIds = new int[]{R.drawable.p1,R.drawable.p2,R.drawable.p3,R.drawable.p4};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
SpeechUtility.createUtility(this, SpeechConstant.APPID +"=5bfca40b");
lvList = findViewById(R.id.lv_list);
mAdapter = new ChatAdapter();
lvList.setAdapter(mAdapter);
}
public void startVoice(View view){
RecognizerDialog mDialog = new RecognizerDialog(this, null);
mDialog.setParameter(SpeechConstant.LANGUAGE,"zh_cn");
mDialog.setParameter(SpeechConstant.ACCENT,"mandarin");
mBuffer = new StringBuffer();
mDialog.setListener(new RecognizerDialogListener() {
@Override
public void onResult(RecognizerResult recognizerResult, boolean b) {
String result = recognizerResult.getResultString();
String resultStriing = processData(result);
mBuffer.append(resultStriing);
if (b){
// 话已经说完了
String finalResult = mBuffer.toString();
// 初始化提问对象
TalkBean askBean = new TalkBean(finalResult,true,-1);
mTalkList.add(askBean);
// 初始化回答对象
String answerContent = "没听清";
int imageId = -1;
if (finalResult.contains("你好")){
answerContent = "你好呀！";
}else if (finalResult.contains("你是谁")){
answerContent = "我是你的小助手！";
}else if (finalResult.contains("美女")){
// 随机回答
int i = (int) (Math.random() * mAnswers.length);
answerContent = mAnswers[i];
// 随机图片
int j = (int) (Math.random() * mImageIds.length);
imageId = mImageIds[j];
}else if (finalResult.contains("天王盖地虎")){
answerContent = "小鸡炖蘑菇";
imageId = R.drawable.m;
}
TalkBean answerBean = new TalkBean(answerContent,false,imageId);
mTalkList.add(answerBean);
mAdapter.notifyDataSetChanged(); // 刷新ListView
lvList.setSelection(mTalkList.size() - 1);// 显示在最后一个Item上
startSpeak(answerContent);
}
}
@Override
public void onError(SpeechError speechError) {
}
});
mDialog.show();
}
private void startSpeak(String answerContent) {
SpeechSynthesizer synthesizer = SpeechSynthesizer.createSynthesizer(this, null);
synthesizer.setParameter(SpeechConstant.VOICE_NAME,"xiaoyan");
synthesizer.setParameter(SpeechConstant.SPEED,"50");
synthesizer.setParameter(SpeechConstant.VOLUME,"80");
synthesizer.setParameter(SpeechConstant.ENGINE_TYPE,SpeechConstant.TYPE_CLOUD);
synthesizer.setParameter(SpeechConstant.TTS_AUDIO_PATH,"./sdcard/iflytek.pcm");
synthesizer.startSpeaking(answerContent,null);
}
private String processData(String result) {
Gson gson = new Gson();
VoiceBean voiceBean = gson.fromJson(result, VoiceBean.class);
StringBuffer sb = new StringBuffer();
for (VoiceBean.WsBean ws : voiceBean.ws) {
String word = ws.cw.get(0).w;
sb.append(word);
}
return sb.toString();
}
class ChatAdapter extends BaseAdapter{
@Override
public int getCount() {
return mTalkList.size();
}
@Override
public TalkBean getItem(int position) {
return mTalkList.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder;
if (convertView == null){
convertView = View.inflate(getApplicationContext(),R.layout.list_item,null);
holder = new ViewHolder();
holder.tvAsk = convertView.findViewById(R.id.tv_ask);
holder.tvAnswer = convertView.findViewById(R.id.tv_answer);
holder.llAnswer = convertView.findViewById(R.id.ll_answer);
holder.ivAnswer = convertView.findViewById(R.id.iv_answer);
convertView.setTag(holder);
}else {
holder = (ViewHolder) convertView.getTag();
}
TalkBean item = getItem(position);
if (item.isAsk){
// 提问
holder.tvAsk.setVisibility(View.VISIBLE);
holder.llAnswer.setVisibility(View.GONE);
holder.tvAsk.setText(item.content);
}else {
holder.tvAsk.setVisibility(View.GONE);
holder.llAnswer.setVisibility(View.VISIBLE);
holder.tvAnswer.setText(item.content);
if (item.imageId > 0){
// 有图片
holder.ivAnswer.setVisibility(View.VISIBLE);
holder.ivAnswer.setImageResource(item.imageId);
}else {
// 无图片
holder.ivAnswer.setVisibility(View.GONE);
}
}
return convertView;
}
}
static class ViewHolder{
public TextView tvAsk;
public TextView tvAnswer;
public LinearLayout llAnswer;
public ImageView ivAnswer;
}
}
3.友盟统计
3.1 介绍 & SDK使用
统计，顾名思义，作用是统计应用的各种访问流量数据，这里要使用一个第三方的SDK——友盟统计，官网为：https://www.umeng.com/，官网上有相关使用教程
这里不再详述
3.2 友盟指数
友盟指数（现在更名为全域罗盘），是友盟自己对于应用这个SDK所进行的各种统计数据，可以在友盟的官网上查看：https://compass.umeng.com/
4.ZXing
二维码，在日常生活中很常见，一般扫描后会显示详情信息，如图所示：
其中，位于左上、左下、右上角都有一个独特的黑点，是作为二维码的特有标识点，而黑白相继出现的方块，则代表着计算机中的0和1
同样的，由于二维码底层实现复杂，因此这里同样引入一个第三方框架——ZXing来实现二维码的逻辑
5.DynamicGrid
DynamicGrid，是一种可拖拽的GridVew，可以用于实现频道的管理，如图所示：
