谷歌语音识别 Demo 程序内自启动apk文件
此Demo 可以判断用户是否安装了谷歌的语音识别服务，如果没有安装，提示用户安装谷歌语音识别程序，程序将自启动谷歌语音识别程序。用户语音输入后，将返回的匹配度最高的呈现在一个TextView 中！注意申请SD卡权限
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.DialogInterface.OnClickListener;
import android.content.Intent;
import android.speech.RecognizerIntent;
import android.view.Menu;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
public class MainActivity extends Activity {
Button mBtnSound;
public static final int REQUEST_CODE_DOUND_REQ = 1;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mBtnSound = (Button) findViewById(R.id.btnSound);
mBtnSound.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
try {
Intent i = new Intent(
RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
startActivityForResult(i, REQUEST_CODE_DOUND_REQ);
} catch (Exception e) {
new AlertDialog.Builder(MainActivity.this)
.setTitle("NotFound")
.setMessage("没有找到谷歌语音识别模块，是否安装？")
.setPositiveButton("是", new OnClickListener() {
@Override
public void onClick(DialogInterface dialog,
int which) {
FileOutputStream out = null;
InputStream in = null;
try {
// 获取输入流
in = getAssets()
.open("goolesearch.apk");
// 获取本地文件夹目录
File dir = Environment
.getExternalStorageDirectory();
File file = new File(dir,
"/goolesearch.apk");
out = new FileOutputStream(file);
int len;
byte[] buf = new byte[1024];
while ((len = in.read(buf)) != -1) {
out.write(buf, 0, len);
}
Intent i = new Intent();
// 设置启动模式
i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
i.setAction(android.content.Intent.ACTION_VIEW);
i.setDataAndType(Uri.fromFile(file),
"application/vnd.android.package-archive");
startActivity(i);
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
if (out != null) {
out.close();
}
if (in != null) {
in.close();
}
} catch (IOException e) {
e.printStackTrace();
}
}
}
}).setNegativeButton("否", null).create().show();
}
}
});
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode == RESULT_OK) {
switch (requestCode) {
case REQUEST_CODE_DOUND_REQ:
ArrayList<String> speeks = null;
speeks = data
.getStringArrayListExtra(RecognizerIntent.EXTRA_RESULTS);
// for (int i = 0; i < speeks.size(); i ) {
// Log.i("speek", speeks.get(i));
// }
TextView mTv = (TextView) findViewById(R.id.tvSpeek);
mTv.setText(speeks.get(0));
break;
default:
break;
}
}
super.onActivityResult(requestCode, resultCode, data);
}