package com.shine.analogoscilloscope;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.DialogInterface;
import android.graphics.Color;
import android.graphics.Paint;
import android.media.AudioFormat;
import android.media.AudioRecord;
import android.media.MediaRecorder;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.MotionEvent;
import android.view.SurfaceView;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.View.OnTouchListener;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
import android.widget.ZoomControls;
public class MainActivity extends Activity {
/** Called when the activity is first created. */
private final int MENU_ABOUT = Menu.FIRST;
private final int MENU_EXIT = Menu.FIRST+1;
private final int MENU_SET= Menu.FIRST+2;
private final int DIALOG_ABOUT = 1;
private final int DIALOG_SETUP = 2;
Button btnStart,btnExit;
SurfaceView sfv;
ZoomControls zctlX,zctlY;
ClsOscilloscope clsOscilloscope=new ClsOscilloscope();
static int frequency = 8000;//分辨率
//static final int frequency = 44100;//分辨率
static final int channelConfiguration = AudioFormat.CHANNEL_CONFIGURATION_MONO;
static final int audioEncoding = AudioFormat.ENCODING_PCM_16BIT;
static final int xMax = 25;//X轴缩小比例最大值,X轴数据量巨大，容易产生刷新延时
static final int xMin = 1;//X轴缩小比例最小值
static final int yMax = 100;//Y轴缩小比例最大值
static final int yMin = 1;//Y轴缩小比例最小值
private TextView textx;
private TextView texty;
Button button_xadd;
Button button_xcut;
Button button_yadd;
Button button_ycut;
int recBufSize;//录音最小buffer大小
AudioRecord audioRecord;
Paint mPaint;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//按键
btnStart = (Button) this.findViewById(R.id.btnStart);
btnStart.setOnClickListener(new ClickEvent());
btnExit = (Button) this.findViewById(R.id.btnExit);
btnExit.setOnClickListener(new ClickEvent());
//画板和画笔
sfv = (SurfaceView) this.findViewById(R.id.SurfaceView01);
sfv.setOnTouchListener(new TouchEvent());
textx = (TextView)this.findViewById(R.id.textX);
texty = (TextView)this.findViewById(R.id.textY);
button_xadd = (Button)this.findViewById(R.id.buttonx1);
button_xcut = (Button)this.findViewById(R.id.buttonx2);
button_yadd = (Button)this.findViewById(R.id.buttony1);
button_ycut = (Button)this.findViewById(R.id.buttony2);
mPaint = new Paint();
mPaint.setColor(Color.GREEN);// 画笔为绿色
mPaint.setStrokeWidth(1);// 设置画笔粗细
//示波器类库
clsOscilloscope.initOscilloscope(xMin, yMax/2, sfv.getHeight()/2);
//====================================================================
//为XY轴缩放按钮绑定监听事件
button_xcut.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
if(clsOscilloscope.rateX>xMin)
clsOscilloscope.rateX--;
textx.setText("X轴增加"+String.valueOf(xMax-clsOscilloscope.rateX+1)+"倍");
}});
button_xadd.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
if(clsOscilloscope.rateX<xMax)
clsOscilloscope.rateX++;
textx.setText("X轴增加"+String.valueOf(xMax-clsOscilloscope.rateX+1)+"倍");
}
});
button_ycut.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
if(clsOscilloscope.rateY>yMin)
clsOscilloscope.rateY--;
texty.setText("Y轴增加"+String.valueOf(yMax-clsOscilloscope.rateY+1)+"倍");
}
});
button_yadd.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
if(clsOscilloscope.rateY<yMax)
clsOscilloscope.rateY++;
texty.setText("Y轴增加"+String.valueOf(yMax-clsOscilloscope.rateY+1)+"倍");
}
});
//=================================================================================
}
@Override
protected void onDestroy() {
super.onDestroy();
clsOscilloscope.Stop();
//android.os.Process.killProcess(android.os.Process.myPid());
}
/**
* 按键事件处理
* @author GV
*
*/
class ClickEvent implements View.OnClickListener {
@Override
public void onClick(View v) {
if (v == btnStart) {//开始
//录音组件
recBufSize = AudioRecord.getMinBufferSize(frequency,
channelConfiguration, audioEncoding);
audioRecord = new AudioRecord(MediaRecorder.AudioSource.MIC, frequency,
channelConfiguration, audioEncoding, recBufSize);
clsOscilloscope.baseLine=sfv.getHeight()/2;
clsOscilloscope.Start(audioRecord,recBufSize,sfv,mPaint);
Toast.makeText(getApplicationContext(), "ok!", Toast.LENGTH_SHORT).show();
}
else if (v == btnExit)
{//停止
clsOscilloscope.Stop();
}
}
}
/**
* 触摸屏动态设置波形图基线
* @author GV
*
*/
class TouchEvent implements OnTouchListener{
@Override
public boolean onTouch(View v, MotionEvent event) {
clsOscilloscope.baseLine=(int)event.getY();
return true;
}
}
//重写对话框服务程序
@Override
protected Dialog onCreateDialog (int id) {
switch (id) {
case DIALOG_ABOUT:
return new AlertDialog.Builder(this)
.setIcon(R.drawable.about_info)
.setTitle("关于")
.setMessage(" 模拟语音示波器\n" +
" Just do it!\n" +
"胖大星!让我们一起去抓水母吧！")
.setPositiveButton("确定", null)
.create();
case DIALOG_SETUP:
return new AlertDialog.Builder(this).setTitle("抽样频率选择")
.setIcon(android.R.drawable.ic_dialog_info)
.setSingleChoiceItems(new String[] { "采样频率为8000Hz", "采样频率为4100Hz" }, 0,
new DialogInterface.OnClickListener()
{
public void onClick(DialogInterface dialog, int which)
{
if(which==0)
{
//===================
frequency = 8000;
//===================
}
else
{
//===================
frequency = 44100;
//===================
}
}
})
.setPositiveButton("确定", null).show();
default:
return null;
}
}
//重写菜单设置服务函数
@Override
public boolean onCreateOptionsMenu(Menu menu) {
menu.add(0,MENU_ABOUT,0,"关于")
.setIcon(R.drawable.about);
menu.add(0,MENU_SET,0,"设置")
.setIcon(R.drawable.setup);
menu.add(0,MENU_EXIT,0,"退出")
.setIcon(R.drawable.exit);
return true;
}
//重写菜单选择响应服务函数
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch(item.getItemId()) {
case MENU_ABOUT:
showDialog(DIALOG_ABOUT);
break;
case MENU_SET:
showDialog(DIALOG_SETUP);
break;
case MENU_EXIT:
finish();//退出程序
break;
default:
break;
}
//Toast.makeText(getApplicationContext(), "Frequency:"+frequency+"Hz",Toast.LENGTH_SHORT).show();
return false;
}
}
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