一句话识别(websocket版)

前提条件

• 确保已经按照配置好Android开发环境。
• 请参考SDK（websocket）获取最新版本SDK包。

初始化Client

初始化SasrWsClient，其中参数包含AuthInfo，SisHttpConfig，SasrWsResponseListener，SasrWsConnProcessListener。

其中AuthInfo和SisHttpConfig的参数如下表所示

请求参数

请求类为SasrWsRequest，其中参数详见下表

建立连接

sasrWsClient.connect();

发送开始识别指令和配置信息

sasrWsClient.sendStart(getStartRequest());

发送识别数据

// data：发送byte数组
// byteSend :数组大小
// sleepTime : 休眠时间
sasrWsClient.sendByte(byte[] data, int byteSend, int sleepTime);

发送结束指令

sasrWsClient.sendEnd();

发送关闭连接请求

sasrWsClient.close();

代码示例

如下示例仅供参考，最新代码请前往SDK（websocket）章节获取并运行。

/*
 * Copyright (c) Huawei Technologies Co., Ltd. 2022-2022. All rights reserved.
 */

package com.huaweicloud.sis.android.demo.asr;

import java.util.concurrent.atomic.AtomicBoolean;

import android.os.Bundle;
import android.util.Log;
import android.view.MotionEvent;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;

import androidx.appcompat.app.AppCompatActivity;

import com.huaweicloud.sdk.core.utils.JsonUtils;
import com.huaweicloud.sis.android.demo.R;
import com.huaweicloud.sis.android.demo.service.AudioRecordService;
import com.huaweicloud.sis.android.demo.Config;

import sis.android.sdk.SasrWsClient;
import sis.android.sdk.bean.AuthInfo;
import sis.android.sdk.bean.SisHttpConfig;
import sis.android.sdk.bean.request.SasrWsRequest;
import sis.android.sdk.bean.response.AsrResponse;
import sis.android.sdk.exception.SisException;
import sis.android.sdk.listeners.SasrWsResponseListener;
import sis.android.sdk.listeners.process.SasrWsConnProcessListener;

/**
 * 功能描述
 * 一句话识别websocket
 *
 * @since 2022-07-11
 */
public class SasrWsActivity extends AppCompatActivity {
	private TextView result;
	private Button startButton;
	private AudioRecordService audioRecordService;
	private AuthInfo authInfo;
	private SasrWsClient sasrWsClient;

	// 实时显示识别的结果
	private StringBuffer realTimeResult;

	// 是否需要发送end请求
	private AtomicBoolean sendEndFlag = new AtomicBoolean(false);

	private SasrWsResponseListener sasrWsResponseListener = new SasrWsResponseListener() {
		@Override
		public void onExceededAudio() {
			sendEndFlag.set(true);
			runOnUiThread(new Runnable() {
				@Override
				public void run() {
					Toast.makeText(getApplicationContext(), "超过1分钟，识别结束...", Toast.LENGTH_SHORT).show();
				}
			});
		}

		// 一句话识别 回调结果更新到界面UI中
		@Override
		public void onResponseMessage(AsrResponse asrResponse) {
			runOnUiThread(new Runnable() {
				@Override
				public void run() {
					for (int i = 0; i < asrResponse.getSegments().size(); i++) {
						AsrResponse.Segment segment = asrResponse.getSegments().get(i);
						result.setText(realTimeResult.toString() + segment.getResult().getText());
						if (segment.getIsFinal()) {
							realTimeResult.append(segment.getResult().getText());
						}
					}
				}
			});
		}

		/**
		 * 开始时响应
		 *
		 * @param response 返回体
		 */
		@Override
		public void onResponseBegin(AsrResponse response) {
			runOnUiThread(new Runnable() {
				@Override
				public void run() {
					Toast.makeText(getApplicationContext(), "连接成功，请录入音频...", Toast.LENGTH_SHORT).show();
				}
			});
		}

		@Override
		public void onResponseEnd(AsrResponse response) {}

		/**
		 * 传输过程中的错误时响应
		 *
		 * @param response 返回体
		 */
		@Override
		public void onResponseError(AsrResponse response) {
			runOnUiThread(new Runnable() {
				@Override
				public void run() {
					// 调用失败给用户提示
					Toast.makeText(getApplicationContext(), JsonUtils.toJSON(response), Toast.LENGTH_SHORT).show();
				}
			});
		}
	};

	private SasrWsConnProcessListener sasrWsConnProcessListener = new SasrWsConnProcessListener() {
		/**
		 * 连接建立后回调
		 */
		@Override
		public void onTranscriptionConnect() {
			Log.i("info", "长连接开始");
		}

		/**
		 * 连接关闭后回调
		 */
		@Override
		public void onTranscriptionClose() {
			Log.i("info", "长连接关闭");
		}

		/**
		 * 长连接连接失败是回调
		 *
		 * @param asrResponse 返回体
		 */
		@Override
		public void onTranscriptionFail(AsrResponse asrResponse) {
			Log.i("info", "长连接异常,等待中");
			runOnUiThread(new Runnable() {
				@Override
				public void run() {
					// 调用失败给用户提示
					Toast.makeText(getApplicationContext(), JsonUtils.toJSON(asrResponse), Toast.LENGTH_SHORT).show();
				}
			});
		}
	};


	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.sasr_websocket);
	}

	@Override
	protected void onDestroy() {
		super.onDestroy();
		if (audioRecordService != null) {
			audioRecordService.releaseAudioRecord();
		}
	}

	@Override
	protected void onStart() {
		super.onStart();
		initView();
		initResources();
	}

	/**
	 * 初始化UI界面
	 */
	private void initView() {
		result = findViewById(R.id.result);
		startButton = findViewById(R.id.start);
		startButton.setOnTouchListener(new View.OnTouchListener() {
			@Override
			public boolean onTouch(View view, MotionEvent event) {
				switch (event.getAction()) {
					case MotionEvent.ACTION_UP:
						audioRecordService.stopAudioRecord();
						if (!sendEndFlag.get()) {
							try {
								sasrWsClient.sendEnd();
							} catch (SisException e) {
								Log.e("error", e.getErrorCode() + e.getErrorMsg());
							}
							sendEndFlag.set(false);
						}
						sasrWsClient.close();
						break;
					case MotionEvent.ACTION_DOWN:
						try {
							actionDown();
						} catch (SisException e) {
							Log.e("error", e.getErrorCode() + e.getErrorMsg());
						}
						break;
					default:
						break;
				}
				return true;
			}
		});
	}

	/**
	 * 初始化请求资源
	 */
	private void initResources() {
		authInfo = new AuthInfo(this.getString(R.string.HUAWEICLOUD_SDK_AK), this.getString(R.string.HUAWEICLOUD_SDK_SK), 
Config.REGION, Config.PROJECT_ID);
		audioRecordService = new AudioRecordService(16000);
		realTimeResult = new StringBuffer();
	}

	/**
	 * 开始请求
	 */
	private SasrWsRequest getStartRequest() {
		SasrWsRequest sasrWsRequest = new SasrWsRequest();
		sasrWsRequest.setCommand("START");
		SasrWsRequest.Config config = new SasrWsRequest.Config();
		config.setAudioFormat("pcm16k16bit");
		config.setProperty("chinese_16k_common");
		config.setAddPunc("yes");
		config.setInterimResults("yes");
		sasrWsRequest.setConfig(config);
		return sasrWsRequest;
	}

	/**
	 * 按钮按下之后事件
	 *
	 * @throws SisException
	 */
	private void actionDown() throws SisException {
		realTimeResult = realTimeResult.delete(0, realTimeResult.length());
		try {
			sasrWsClient = new SasrWsClient(authInfo, sasrWsResponseListener, sasrWsConnProcessListener, new SisHttpConfig());
			audioRecordService.getAudioRecord().startRecording();
			sasrWsClient.connect();
			sasrWsClient.sendStart(getStartRequest());
			audioRecordService.startSendRecordingData(sasrWsClient);
		} catch (SisException e) {
			Log.e("error", e.getErrorCode() + e.getErrorMsg());
		}
	}
}