Android利用RecognizerIntent识别语音并简单实现打电话动作

Posted 2020-10-03 mfmdaoyou

关于android利用RecognizerIntent识别语音并简单实现打电话，详细看实现代码例如以下：

package com.example.recognizerintentactivity;

import java.util.ArrayList;

import android.app.Activity;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.speech.RecognizerIntent;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.Toast;

public class MainActivity extends Activity {

private Button btnReconizer;
private static final int VOICE_RECOGNITION_REQUEST_CODE = 1234;

@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

btnReconizer = (Button) this.findViewById(R.id.btnRecognizer);
btnReconizer.setOnClickListener(new OnClickListener() {

@Override
public void onClick(View v) {
// TODO Auto-generated method stub
try {
// 通过Intent传递语音识别的模式，开启语音
Intent intent = new Intent(
RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
// 语言模式和自由模式的语音识别
intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL,
RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
// 提示语音開始
intent.putExtra(RecognizerIntent.EXTRA_PROMPT, "開始语音");
// 開始语音识别
startActivityForResult(intent,
VOICE_RECOGNITION_REQUEST_CODE);
} catch (Exception e) {
// TODO: handle exception
e.printStackTrace();
Toast.makeText(getApplicationContext(), "找不到语音设备", 1)
.show();
}
}
});

}

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
// TODO Auto-generated method stub
// 回调获取从谷歌得到的数据
if (requestCode == VOICE_RECOGNITION_REQUEST_CODE
&& resultCode == RESULT_OK) {
// 取得语音的字符
ArrayList<String> results = data
.getStringArrayListExtra(RecognizerIntent.EXTRA_RESULTS);

String resultString = "";
for (int i = 0; i < results.size(); i++) {
resultString += results.get(i);
}

if(resultString.indexOf("喂") >-1){
String tel = "15100000000";
Intent intent = new Intent();
intent.setAction(Intent.ACTION_CALL);
intent.setData(Uri.parse("tel:" + tel));
startActivity(intent);
Toast.makeText(this,tel, 1).show();
}else{
Toast.makeText(this, "没找到要拨打的电话", 1).show();
}
}
super.onActivityResult(requestCode, resultCode, data);
}
}

这里，我们须要注意的是，须要用到两个权限。一个是网络资源。一个是打电话的这个动作权限，因此，我们须要改动 AndroidMainfest.xml添加两条内容。例如以下

<uses-permission android:name="android.permission.CALL_PHONE" />
<uses-permission android:name="android.permission.INTERNET" />