Android 科大讯飞语音识别(详细步骤+源码)，2024年Android大厂面试分享

一、声明变量和初始化

private static final String TAG = “MainActivity”;

private SpeechRecognizer mIat;// 语音听写对象

private RecognizerDialog mIatDialog;// 语音听写UI

// 用HashMap存储听写结果

private HashMap<String, String> mIatResults = new LinkedHashMap<String, String>();

private SharedPreferences mSharedPreferences;//缓存

private String mEngineType = SpeechConstant.TYPE_CLOUD;// 引擎类型

private String language = “zh_cn”;//识别语言

private TextView tvResult;//识别结果

private Button btnStart;//开始识别

private String resultType = “json”;//结果内容数据格式

同时你要实现这个点击事件的监听

实现一个方法

@Override

public void onClick(View v) {

//写入点击之后处理逻辑

}

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

tvResult = findViewById(R.id.tv_result);

btnStart = findViewById(R.id.btn_start);

btnStart.setOnClickListener(this);//实现点击监听

}

二、动态权限请求

/**

• android 6.0 以上需要动态申请权限

*/

private void initPermission() {

String permissions[] = {Manifest.permission.RECORD_AUDIO,

Manifest.permission.ACCESS_NETWORK_STATE,

Manifest.permission.INTERNET,

Manifest.permission.WRITE_EXTERNAL_STORAGE

};

ArrayList toApplyList = new ArrayList();

for (String perm : permissions) {

if (PackageManager.PERMISSION_GRANTED != ContextCompat.checkSelfPermission(this, perm)) {

toApplyList.add(perm);

}

}

String tmpList[] = new String[toApplyList.size()];

if (!toApplyList.isEmpty()) {

ActivityCompat.requestPermissions(this, toApplyList.toArray(tmpList), 123);

}

}

/**

• 权限申请回调，可以作进一步处理

• @param requestCode

• @param permissions

• @param grantResults

*/

@Override

public void