package?com.example.gentone;

import?java.io.FileInputStream;

import?android.os.Bundle;
import?android.app.Activity;
import?android.util.Log;
import?android.view.Menu;
import?android.view.View;
import?android.media.AudioFormat;
import?android.media.AudioTrack;
import?android.media.ToneGenerator;
import?android.media.AudioManager;
import?android.widget.Button;

public?class?MainActivity?extends?Activity?{
	private?Button?btn_start;
	private?Button?btn_stop;
	private?FileInputStream?mFile;
	private?byte?mBuffer[];
	private?short?mLen;
	AudioTrack?mTrack;
	ToneGenerator?gen?=?new?ToneGenerator（AudioManager.STREAM_MUSIC?50）;
	@Override
	protected?void?onCreate（Bundle?savedInstanceState）?{
		super.onCreate（savedInstanceState）;
		try?{
		????mFile?=?new?FileInputStream（“/sdcard/raw.wav“）;
		????mBuffer?=?new?byte[256?*?1024];
		????mLen?=?（short）?mFile.read（mBuffer）;
		}?catch?（Exception?e）?{
			Log.e（“Tom“?“Can‘t?open?/sdcard/raw.wav“?+?“?“?+?e.toString（））;
		}
		setContentView（R.layout.activity_main）;
????????btn_start?=?（Button）?findViewById（R.id.btn_start）;
????????btn_stop?=?（Button）?findViewById（R.id.btn_stop）;

????????btn_start.setonclickListener（
????????????new?View.onclickListener（）?{
????????????????public?void?onclick（View?v）?{
????????????????	//gen.startTone（ToneGenerator.TONE_DTMF_6）;
????????????????	if?（mTrack?==?null?&&?mFile?!=?null）?{
????????????????		try?{
????????????????			Log.i（“Tom“?“file?lenth?is?“?+?mLen）;
??