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   源码介绍

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package com.example.sinvoicedemo;

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;

import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.os.Bundle;
import android.os.Environment;
import android.os.Handler;
import android.os.Message;
import android.os.PowerManager;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.CompoundButton.OnCheckedChangeListener;
import android.widget.TextView;
import android.widget.Toast;

import com.libra.sinvoice.LogHelper;
import com.libra.sinvoice.SinVoicePlayer;
import com.libra.sinvoice.SinVoiceRecognition;

public class MainActivity extends Activity implements SinVoiceRecognition.Listener, SinVoicePlayer.Listener {
    private final static String TAG = "MainActivity";

    private final static int MSG_SET_RECG_TEXT = 1;
    private final static int MSG_RECG_START = 2;
    private final static int MSG_RECG_END = 3;
    private final static int MSG_PLAY_TEXT = 4;

    private final static int TOKEN_LEN = 16;
    private final static String BAKCUP_LOG_PATH = "/sinvoice_backup";

    private final static String CODEBOOK = "abcdefghijklmnopq";

    private Handler mHanlder;
    private SinVoicePlayer mSinVoicePlayer;
    private SinVoiceRecognition mRecognition;
    private boolean mIsReadFromFile;
    private String mSdcardPath;
    private PowerManager.WakeLock mWakeLock;
    private TextView mPlayTextView;
    private TextView mRecognisedTextView;
    private String mPlayText;

    static {
        System.loadLibrary("sinvoice");
        LogHelper.d("SinVoice", "sinvoice loadlibraryxxxxxxxxxxxxxxxxxxxxxxx");
    }

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

        mIsReadFromFile = false;

        PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
        mWakeLock = pm.newWakeLock(PowerManager.SCREEN_DIM_WAKE_LOCK, TAG);

        mSdcardPath = Environment.getExternalStorageDirectory().getPath();
        mSinVoicePlayer = new SinVoicePlayer();
        mSinVoicePlayer.setListener(this);

        mRecognition = new SinVoiceRecognition(CODEBOOK);
        mRecognition.setListener(this);

        mRecognition.init();

        mPlayTextView = (TextView) findViewById(R.id.playtext);
        mRecognisedTextView = (TextView) findViewById(R.id.regtext);
        mHanlder = new RegHandler(this);

        Button playStart = (Button) findViewById(R.id.start_play);
        playStart.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View arg0) {
                mSinVoicePlayer.play(TOKEN_LEN, true, 2000);
            }
        });

        Button playStop = (Button) findViewById(R.id.stop_play);
        playStop.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View arg0) {
                mSinVoicePlayer.stop();
            }
        });

        Button recognitionStart = (Button) findViewById(R.id.start_reg);
        recognitionStart.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View arg0) {
                mRecognition.start(TOKEN_LEN, mIsReadFromFile);
            }
        });

        Button recognitionStop = (Button) findViewById(R.id.stop_reg);
        recognitionStop.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View arg0) {
                mRecognition.stop();
            }
        });

        CheckBox cbReadFromFile = (CheckBox) findViewById(R.id.fread_from_file);
        cbReadFromFile.setOnCheckedChangeListener(new OnCheckedChangeListener() {
            @Override
            public void onCheckedChanged(CompoundButton arg0, boolean isChecked) {
                mIsReadFromFile = isChecked;
            }
        });

        Button btBackup = (Button) findViewById(R.id.back_debug_info);
        btBackup.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View arg0) {
                backup();
            }
        });

        Button btClearBackup = (Button) findViewById(R.id.clear_debug_info);
        btClearBackup.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View arg0) {
                new AlertDialog.Builder(MainActivity.this).setTitle("information").setMessage("Sure to clear?").setPositiveButton("yes", new DialogInterface.OnClickListener() {
                    public void onClick(DialogInterface dialog, int whichButton) {
                        clearBackup();
                    }
                }).setNegativeButton("no", new DialogInterface.OnClickListener() {
                    public void onClick(DialogInterface dialog, int whichButton) {
                    }
                }).show();
            }
        });

    }

    @Override
    public void onResume() {
        super.onResume();

        mWakeLock.acquire();
    }

    @Override
    public void onPause() {
        super.onPause();

        mWakeLock.release();

        mSinVoicePlayer.stop();
        mRecognition.stop();
    }

    @Override
    public void onDestroy() {
        super.onDestroy();

        mRecognition.uninit();
        mSinVoicePlayer.uninit();
    }

    private void clearBackup() {
        delete(new File(mSdcardPath   BAKCUP_LOG_PATH));

        Toast.makeText(this, "clear backup log info successful", Toast.LENGTH_SHORT).show();
    }

    private static void delete(File file) {
        if (file.isFile()) {
            file.delete();
            return;
        }

        if (file.isDirectory()) {
            File[] childFiles = file.listFiles();
            if (childFiles == null || childFiles.length == 0) {
                file.delete();
                return;
            }

            for (int i = 0; i < childFiles.length; i  ) {
                delete(childFiles[i]);
            }
            file.delete();
        }
    }

    private void backup() {
        mRecognition.stop();

        String timestamp = getTimestamp();
        String destPath = mSdcardPath   BAKCUP_LOG_PATH   "/back_"   timestamp;
        try {
            copyDirectiory(destPath, mSdcardPath   "/sinvoice");
            copyDirectiory(destPath, mSdcardPath   "/sinvoice_log");

            FileOutputStream fout = new FileOutputStream(destPath   "/text.txt");

            String str = mPlayTextView.getText().toString();
            byte[] bytes = str.getBytes();
            fout.write(bytes);

            str = mRecognisedTextView.getText().toString();
            bytes = str.getBytes();
            fout.write(bytes);

            fout.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
        Toast.makeText(this, "backup log info successful", Toast.LENGTH_SHORT).show();
    }

    private static class RegHandler extends Handler {
        private StringBuilder mTextBuilder = new StringBuilder();
        private MainActivity mAct;
        public RegHandler(MainActivity act) {
            mAct = act;
        }

        @Override
        public void handleMessage(Message msg) {
            switch (msg.what) {
            case MSG_SET_RECG_TEXT:
                char ch = (char) msg.arg1;
                mTextBuilder.append(ch);
                if (null != mAct ) {
                    mAct.mRecognisedTextView.setText(mTextBuilder.toString());
                }
                break;

            case MSG_RECG_START:
                mTextBuilder.delete(0, mTextBuilder.length());
                break;

            case MSG_RECG_END:
                LogHelper.d(TAG, "recognition end");
                break;

            case MSG_PLAY_TEXT:
                mAct.mPlayTextView.setText(mAct.mPlayText);
                break;
            }
            super.handleMessage(msg);
        }
    }

    @Override
    public void onRecognitionStart() {
        mHanlder.sendEmptyMessage(MSG_RECG_START);
    }

    @Override
    public void onRecognition(char ch) {
        mHanlder.sendMessage(mHanlder.obtainMessage(MSG_SET_RECG_TEXT, ch, 0));
    }

    @Override
    public void onRecognitionEnd() {
        mHanlder.sendEmptyMessage(MSG_RECG_END);
    }

    @Override
    public void onPlayStart() {
        LogHelper.d(TAG, "start play");
    }

    @Override
    public void onPlayEnd() {
        LogHelper.d(TAG, "stop play");
    }

    private static String getTimestamp() {
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd-HH:mm:ss");
        return sdf.format(new Date());
    }

    private static void copyFile(File targetFile, File sourceFile) throws IOException {
        FileInputStream input = new FileInputStream(sourceFile);
        BufferedInputStream inBuff = new BufferedInputStream(input);

        FileOutputStream output = new FileOutputStream(targetFile);
        BufferedOutputStream outBuff = new BufferedOutputStream(output);

        byte[] b = new byte[1024 * 5];
        int len;
        while ((len = inBuff.read(b)) != -1) {
            outBuff.write(b, 0, len);
        }
        outBuff.flush();

        inBuff.close();
        outBuff.close();
        output.close();
        input.close();
    }

    private static void copyDirectiory(String targetDir, String sourceDir) throws IOException {
        (new File(targetDir)).mkdirs();
        File[] file = (new File(sourceDir)).listFiles();
        if ( null != file ) {
            for (int i = 0; i < file.length; i  ) {
                if (file[i].isFile()) {
                    File sourceFile = file[i];
                    File targetFile = new File(new File(targetDir).getAbsolutePath()   File.separator   file[i].getName());
                    copyFile(targetFile, sourceFile);
                }
                if (file[i].isDirectory()) {
                    String srcPath = sourceDir   "/"   file[i].getName();
                    String targetPath = targetDir   "/"   file[i].getName();
                    copyDirectiory(targetPath, srcPath);
                }
            }
        }
    }

    @Override
    public void onSinToken(int[] tokens) {
        if ( null != tokens ) {
            StringBuilder sb = new StringBuilder();
            for ( int i = 1; i < tokens.length;   i ) {
                sb.append(CODEBOOK.charAt(tokens[i]));
            }

            mPlayText = sb.toString();
            LogHelper.d(TAG, "onSinToken "   mPlayText);
            mHanlder.sendEmptyMessage(MSG_PLAY_TEXT);
        }
    }

}