聊天机器人&语音

最新推荐文章于 2023-06-23 16:45:59 发布

原创最新推荐文章于 2023-06-23 16:45:59 发布 · 910 阅读

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1.总布局

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

    <ListView
        android:id="@+id/lv_list"
        android:layout_width="wrap_content"
        android:layout_height="0dp"
        android:divider="@null"
        android:layout_weight="1" />

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="@drawable/bottom_bar"
        android:gravity="center"
        android:orientation="vertical" >

        <Button
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_margin="10dp"
            android:background="@drawable/btn_selector"
            android:onClick="startListen"
            android:text="点击开始语音识别"
            android:textColor="#000"
            android:textSize="16sp" />
    </LinearLayout>

</LinearLayout>

2.子布局

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >

    <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:layout_margin="5dp"
        android:background="@drawable/asker_bubble"
        android:gravity="center"
        android:text="你吃饭了吗?"
        android:textColor="#000"
        android:textSize="16sp" />

    <LinearLayout
        android:id="@+id/ll_answer"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@id/tv_ask"
        android:layout_margin="5dp"
        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_margin="5dp"
            android:text="吃个毛线啊!"
            android:textColor="#000"
            android:textSize="16sp" />

        <ImageView
            android:id="@+id/iv_pic"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:src="@drawable/m"
            android:visibility="gone" />
    </LinearLayout>

</RelativeLayout>

3.聊天对象chatbean

/**
 * 聊天信息对象
 * 
 * @author Kevin
 * 
 */
public class ChatBean {

	public String text;// 内容
	public boolean isAsker;// true表示提问者,否则是回答者

	public int imageId = -1;// 图片id

	public ChatBean(String text, boolean isAsker, int imageId) {
		this.text = text;
		this.isAsker = isAsker;
		this.imageId = imageId;
	}

}

4.解析Json

(1)使用HiJson查看结构

(2)使用Gson

(3)语音信息的封装

/**
 * 语音信息封装
 * 
 * @author Kevin
 * 
 */
public class VoiceBean {

	public ArrayList<WSBean> ws;

	public class WSBean {
		public ArrayList<CWBean> cw;
	}

	public class CWBean {
		public String w;
	}
}

public class MainActivity extends Activity {

	private ListView lvList;

	private ArrayList<ChatBean> mChatList = new ArrayList<ChatBean>();

	private ChatAdapter mAdapter;

	private String[] mMMAnswers = new String[] { "约吗?", "讨厌!", "不要再要了!",
			"这是最后一张了!", "漂亮吧?" };

	private int[] mMMImageIDs = 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);

		lvList = (ListView) findViewById(R.id.lv_list);
		mAdapter = new ChatAdapter();

		lvList.setAdapter(mAdapter);

		// 初始化语音引擎
		SpeechUtility.createUtility(this, SpeechConstant.APPID + "=54b8bca3");
	}

	StringBuffer mTextBuffer = new StringBuffer();
	private RecognizerDialogListener recognizerDialogListener = new RecognizerDialogListener() {

		@Override
		public void onResult(RecognizerResult results, boolean isLast) {
			// System.out.println(results.getResultString());
			// System.out.println("isLast=" + isLast);

			String text = parseData(results.getResultString());
			mTextBuffer.append(text);

			if (isLast) {// 会话结束
				String finalText = mTextBuffer.toString();
				mTextBuffer = new StringBuffer();// 清理buffer
				System.out.println("最终结果:" + finalText);
				mChatList.add(new ChatBean(finalText, true, -1));

				String answer = "没听清";
				int imageId = -1;
				if (finalText.contains("你好")) {
					answer = "大家好,才是真的好!";
				} else if (finalText.contains("你是谁")) {
					answer = "我是你的小助手!";
				} else if (finalText.contains("天王盖地虎")) {
					answer = "小鸡炖蘑菇";
					imageId = R.drawable.m;
				} else if (finalText.contains("美女")) {
					Random random = new Random();
					int i = random.nextInt(mMMAnswers.length);
					int j = random.nextInt(mMMImageIDs.length);
					answer = mMMAnswers[i];
					imageId = mMMImageIDs[j];
				}

				mChatList.add(new ChatBean(answer, false, imageId));// 添加回答数据
				mAdapter.notifyDataSetChanged();// 刷新listview
				
				lvList.setSelection(mChatList.size() - 1);// 定位到最后一张

				read(answer);
			}

		}

		@Override
		public void onError(SpeechError arg0) {

		}
	};

	/**
	 * 语音朗诵
	 */
	public void read(String text) {
		SpeechSynthesizer mTts = SpeechSynthesizer
				.createSynthesizer(this, null);

		mTts.setParameter(SpeechConstant.VOICE_NAME, "xiaoyan");
		mTts.setParameter(SpeechConstant.SPEED, "50");
		mTts.setParameter(SpeechConstant.VOLUME, "80");
		mTts.setParameter(SpeechConstant.ENGINE_TYPE, SpeechConstant.TYPE_CLOUD);

		mTts.startSpeaking(text, null);
	}

	/**
	 * 开始语音识别
	 * 
	 * @param view
	 */
	public void startListen(View view) {
		RecognizerDialog iatDialog = new RecognizerDialog(this, null);

		// 2.设置听写参数，详见《科大讯飞MSC API手册(Android)》SpeechConstant类
		iatDialog.setParameter(SpeechConstant.DOMAIN, "iat");
		iatDialog.setParameter(SpeechConstant.LANGUAGE, "zh_cn");
		iatDialog.setParameter(SpeechConstant.ACCENT, "mandarin");

		iatDialog.setListener(recognizerDialogListener);

		iatDialog.show();
	}

	class ChatAdapter extends BaseAdapter {

		@Override
		public int getCount() {
			return mChatList.size();
		}

		@Override
		public ChatBean getItem(int position) {
			return mChatList.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) {
				holder = new ViewHolder();
				convertView = View.inflate(MainActivity.this,
						R.layout.list_item, null);

				holder.tvAsk = (TextView) convertView.findViewById(R.id.tv_ask);
				holder.tvAnswer = (TextView) convertView
						.findViewById(R.id.tv_answer);
				holder.llAnswer = (LinearLayout) convertView
						.findViewById(R.id.ll_answer);
				holder.ivPic = (ImageView) convertView
						.findViewById(R.id.iv_pic);

				convertView.setTag(holder);
			} else {
				holder = (ViewHolder) convertView.getTag();
			}

			ChatBean item = getItem(position);

			if (item.isAsker) {// 是提问者
				holder.tvAsk.setVisibility(View.VISIBLE);
				holder.llAnswer.setVisibility(View.GONE);

				holder.tvAsk.setText(item.text);
			} else {
				holder.tvAsk.setVisibility(View.GONE);
				holder.llAnswer.setVisibility(View.VISIBLE);
				holder.tvAnswer.setText(item.text);
				if (item.imageId != -1) {// 有图片
					holder.ivPic.setVisibility(View.VISIBLE);
					holder.ivPic.setImageResource(item.imageId);
				} else {
					holder.ivPic.setVisibility(View.GONE);
				}
			}

			return convertView;
		}

	}

	static class ViewHolder {
		public TextView tvAsk;
		public TextView tvAnswer;
		public LinearLayout llAnswer;
		public ImageView ivPic;
	}

	/**
	 * 解析语音数据
	 * 
	 * @param resultString
	 */
	protected String parseData(String resultString) {
		Gson gson = new Gson();
		VoiceBean bean = gson.fromJson(resultString, VoiceBean.class);
		ArrayList<WSBean> ws = bean.ws;

		StringBuffer sb = new StringBuffer();
		for (WSBean wsBean : ws) {
			String text = wsBean.cw.get(0).w;
			sb.append(text);
		}

		return sb.toString();
	}

}