[置顶] Android传感器计步器

暑假里做了一个安卓计步器，不依靠GPS，也不用联网，只依靠重力加速度传感器和三轴磁力传感器，就可以实现记录步数和记录行走轨迹。我还加入了摇一摇切歌的功能，享受运动的乐趣~~

发布的apk可以在这里下载：pan.baidu.com/s/1i3gw3sh （打算以后完备了再发布到应用市场，所以欢迎大家吐槽评论）

这个项目只用了三天时间（作为自己的第一个安卓作品，我觉得还是很快的~~），当时完全是被deadline给逼出来的。老师对这个项目赞不绝口，觉得我一个正在上预科的孩子，学校里C语言还没有开课，就能自己做得这么好，于是果断给99分，哈哈~~不过，我觉得这个项目有很多地方可以改进和完善，因此在这里把这个项目总结一下，以备查询，也欢迎大家给出意见。以后有时间，再推出2.0、3.0等版本咯咯~~

计步器的原理是基本的物理知识，不再赘述，以后有时间可以单独写一篇，说明我是如何推导的。下面是所有代码：

第一部分：manifest

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.pedometre"
    android:versionCode="1"
    android:versionName="1.0" >
    
    <uses-permission android:name="android.permission.WAKE_LOCK" />

    <uses-sdk
        android:minSdkVersion="14"
        android:targetSdkVersion="21" />

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name">
        <activity
            android:theme="@style/myTheme"
            android:name=".MainActivity"
            android:label="@string/app_name" >
        </activity>
        <activity 
            android:theme="@android:style/Theme.NoTitleBar"
            android:name="com.example.pedometre.splash">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity android:name="com.example.pedometre.aide"
                  android:theme="@style/myTheme">
             <meta-data
                android:name="android.support.PARENT_ACTIVITY"
                android:value=".MainActivity" />
        </activity>
        <activity android:name="com.example.pedometre.carteDraw"
                  android:theme="@style/myTheme">
             <meta-data
                android:name="android.support.PARENT_ACTIVITY"
                android:value=".MainActivity" />
        </activity>
        <service android:name="com.example.pedometre.StepCounterService"></service>
        <activity android:name="com.example.pedometre.mPlayer"
                  android:theme="@style/myTheme">
            <meta-data
                android:name="android.support.PARENT_ACTIVITY"
                android:value=".MainActivity" />
        </activity>
        <service android:name="com.example.pedometre.mPlayerService"></service>
    </application>

</manifest>

第二部分：mainActivity

package com.example.pedometre;

import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.text.DecimalFormat;
import java.util.ArrayList;

import com.example.pedometre.StepDetector;
import com.example.pedometre.StepCounterService;

import android.support.v4.widget.DrawerLayout;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.SensorListener;
import android.hardware.SensorManager;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.os.SystemClock;
import android.util.Log;
import android.view.Gravity;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewConfiguration;
import android.view.Window;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.Chronometer;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.TextView;

public class MainActivity extends Activity {
	private DrawerLayout mDrawerLayout = null;
	private ListView mylistview;
	private ArrayList<String> list = new ArrayList<String>();
	private TextView tv_step;
	private TextView sy_dis;
	private TextView sy_cal;
	private TextView sy_vit;
	private Button btn_start;
	private Button btn_stop;
	private Thread mThread;
	private Chronometer timer;
	public static int total_step = 0;
	private int total_step1=0;
	private float pep_weight=60;
	private float per_step=0.5f;
	private float last_time=0;
	private float kaluli=0;
	private float x=0;
	private float st_x=0;
	private float st_y=0;
	private String inputName="";
	private SensorManager sm1;
	private SensorManager sm2;
	

	float[] accelerometerValues = new float[3];
	float[] magneticFieldValues = new float[3];
	
	public static float[]da_st=new float[10000];
	public static float max_width=0f,max_height=0f;

	
    @SuppressLint("HandlerLeak") Handler mHandler = new Handler(){
		@Override
		public void handleMessage(android.os.Message msg) {
			super.handleMessage(msg);
			if(msg.what == 0x00){
				countStep();
				tv_step.setText(total_step+"");
				last_time=last_time/1000/3600;
				kaluli=pep_weight*last_time*30/(last_time/per_step/total_step*400*60);
				DecimalFormat decimalFormat=new DecimalFormat("0.00");
				sy_cal.setText(decimalFormat.format(kaluli)+"kcal");
				
				 float[] values = new float[3];
			     float[] R = new float[9];
			     SensorManager.getRotationMatrix(R, null, accelerometerValues, magneticFieldValues);	      
			     SensorManager.getOrientation(R, values);
			     da_st[total_step]=values[0];
			     
			   /* st_x=(float) (st_x+Math.cos(values[0]));
					st_y=(float) (st_y+Math.sin(values[0]));
					if (Math.abs(st_x)>max_height){
						max_height=Math.abs(st_x);
					}
					if (Math.abs(st_y)>max_width){
						max_width=Math.abs(st_y);
					}
			   */
				sy_dis.setText(decimalFormat.format(total_step*per_step/1000)+"km");
				
				sy_vit.setText(decimalFormat.format(total_step*per_step/1000/last_time)+"km/h");
			}
		}
	};
	
	private void countStep() {
		if(StepDetector.CURRENT_SETP % 2 == 0){
			total_step = StepDetector.CURRENT_SETP;
		}else{
			total_step = StepDetector.CURRENT_SETP + 1;
		}
		Log.i("total_step", StepDetector.CURRENT_SETP+"");
		total_step = StepDetector.CURRENT_SETP;
	};
	
	
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        
        sm1 = (SensorManager) getSystemService(SENSOR_SERVICE);
        sm2 = (SensorManager) getSystemService(SENSOR_SERVICE);
      
        mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
        forceShowOverflowMenu();
        tv_step = (TextView) findViewById(R.id.tv_step);
        sy_dis = (TextView) findViewById(R.id.sy_distance);
        sy_cal = (TextView) findViewById(R.id.sy_caluli);
        sy_vit = (TextView) findViewById(R.id.sy_vitesse);
		btn_start = (Button) findViewById(R.id.btn_start);
		btn_stop = (Button) findViewById(R.id.btn_stop);
		timer = (Chronometer) findViewById(R.id.chronometer);
		mylistview = (ListView)findViewById(R.id.left_drawer);
		list.add("Poids(kg):                                    (60kg par défaut)");
		list.add("Longueur de chaque étape(cm):                 (50cm par défaut)");
		list.add("La sensibilité du capteur:                    (3 par défaut)");
		list.add("Intervalle temporel entre deux étapes(ms):    (500 par défaut)");
		ArrayAdapter<String> myArrayAdapter = new ArrayAdapter<String>
		(this,android.R.layout.simple_list_item_1,list);
		mylistview.setAdapter(myArrayAdapter);
		mylistview.setOnItemClickListener(new OnItemClickListener(){
			@Override
			public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,long arg3) {
				if(list.get(arg2).contains("Poids")){
					inputTitleDialog();
					int t=0;
					try{
						t=Integer.parseInt(inputName);
					}catch(Exception e){}
					if (t>0){
					    list.set(arg2,"Poids(kg):                                    ("+inputName+"kg par défaut)");
					    pep_weight=t;
					}
				}
				if(list.get(arg2).contains("Longueur")){
					inputTitleDialog();
					int t=0;
					try{
						t=Integer.parseInt(inputName);
					}catch(Exception e){}
					if (t>0){
					    list.set(arg2,"Longueur de chaque étape(cm):                 ("+inputName+"cm par défaut)");
					    per_step=(float) (t*1.0/100);
					}
				}
				if(list.get(arg2).contains("sensibilité")){
					inputTitleDialog();
					int t=0;
					try{
						t=Integer.parseInt(inputName);
					}catch(Exception e){}
					if (t>0){
					    list.set(arg2,"La sensibilité du capteur:                    ("+inputName+" par défaut)");
					    StepDetector.SENSITIVITY=t;
					}
				}
				if(list.get(arg2).contains("Intervalle")){
					inputTitleDialog();
					int t=0;
					try{
						t=Integer.parseInt(inputName);
					}catch(Exception e){}
					if (t>0){
					    list.set(arg2,"Intervalle temporel entre deux étapes(ms):    ("+inputName+" par défaut)");
					    StepDetector.time_jg=t;
					}
				}
			}
		});
    }
    
    @Override
	protected void onResume(){
		super.onResume();
		if (sm1 != null) {
			sm1.registerListener(sev1,sm1.getDefaultSensor(Sensor.TYPE_ACCELEROMETER),
					SensorManager.SENSOR_DELAY_NORMAL);
		}
		if (sm2 != null) {
			sm2.registerListener(sev2,sm2.getDefaultSensor(Sensor.TYPE_MAGNETIC_FIELD),
					SensorManager.SENSOR_DELAY_NORMAL);
		}
	}
    
    private SensorEventListener sev1 = new SensorEventListener() {
		 @Override
		 public void onSensorChanged(SensorEvent event) {
			 accelerometerValues = event.values;
		 }
		@Override
		public void onAccuracyChanged(Sensor sensor, int accuracy) {
		}
	 };
	 
	 private SensorEventListener sev2 = new SensorEventListener() {
		 @Override
		 public void onSensorChanged(SensorEvent event) {
			 magneticFieldValues = event.values;
		 }
		@Override
		public void onAccuracyChanged(Sensor sensor, int accuracy) {
		}
	 };
    
    private void inputTitleDialog() {
    	 final EditText inputServer = new EditText(this);
    	 inputServer.setFocusable(true);
    	 AlertDialog.Builder builder = new AlertDialog.Builder(this);
    	 builder.setTitle("Réglages(Nombre entier naturel)").setIcon(R.drawable.ic_launcher).
    	 setView(inputServer).setNegativeButton("Annuler",null);
    	 builder.setPositiveButton("OK",new DialogInterface.OnClickListener(){
    		 public void onClick(DialogInterface dialog, int which) {
    			 inputName=inputServer.getText().toString();
    		 }
    	 });
    	 builder.show();
	}
    
    public void btnClick(View view){
		Intent service = new Intent(this, StepCounterService.class);
		switch (view.getId()) {
		case R.id.btn_music:
			turnAround2();
			break;
		case R.id.btn_map:
			turnAround1();
			break;
		case R.id.btn_start:
			timer.setBase(SystemClock.elapsedRealtime()); 
			timer.start();
			startService(service);
			btn_start.setEnabled(false);
			btn_stop.setEnabled(true);
			if(mThread == null){
				mThread = new Thread(){
					@Override
					public void run() {
						// TODO Auto-generated method stub
						super.run();
						int temp = 0;
						while (true) {
							try {
								sleep(300);
							} catch (InterruptedException e) {
								// TODO Auto-generated catch block
								e.printStackTrace();
							}
							if(StepCounterService.FLAG){
								Log.i("istrue", "true");
								if (temp != StepDetector.CURRENT_SETP) {
									temp = StepDetector.CURRENT_SETP;
								}
								last_time=SystemClock.elapsedRealtime()-timer.getBase();
								mHandler.sendEmptyMessage(0x00);
							}
						}
					}
				};
				mThread.start();
			}
			break;
		case R.id.btn_stop:
			timer.stop();
			stopService(service);
			btn_start.setEnabled(true);
			btn_stop.setEnabled(false);
			StepDetector.CURRENT_SETP = 0;
			mHandler.removeCallbacks(mThread);
			break;
		default:
			break;
		}
	}


	private void turnAround1() {
		Intent intent = new Intent();                   
        intent.setClass(MainActivity.this, carteDraw.class);
        startActivity(intent); 
	}

	private void turnAround2() {
		Intent intent = new Intent();                   
        intent.setClass(MainActivity.this, mPlayer.class);
        startActivity(intent); 
	}

	private void forceShowOverflowMenu() {
		try {
			ViewConfiguration config = ViewConfiguration.get(this);
			Field menuKeyField = ViewConfiguration.class
					.getDeclaredField("sHasPermanentMenuKey");
			if (menuKeyField != null) {
				menuKeyField.setAccessible(true);
				menuKeyField.setBoolean(config, false);
			}
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

	@Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()){
        case R.id.help:
        	turnAround();
            return true;
        case R.id.setting:
        	mDrawerLayout.openDrawer(Gravity.LEFT);
			return true;
        case R.id.exit:
        	 new AlertDialog.Builder(MainActivity.this).setTitle("Confirmation")
			 .setMessage("Vous êtes sûr de me quitter?\n(⊙ ︿ ⊙)")
			 .setPositiveButton("Oui",new DialogInterface.OnClickListener(){
				 @Override
				 public void onClick(DialogInterface dialog, int which) {
					 finish();
				 }
			 }).setNegativeButton("Non",new DialogInterface.OnClickListener() {
				@Override
				public void onClick(DialogInterface dialog, int which) {
				}
			 }).show();
        	return true;
        default:
        	return super.onOptionsItemSelected(item);
        }
    }

	@Override
	public boolean onMenuOpened(int featureId, Menu menu) {
		setOverflowIconVisible(featureId, menu);
		return super.onMenuOpened(featureId, menu);
	}
    
	private void setOverflowIconVisible(int featureId, Menu menu) {
		if (featureId == Window.FEATURE_ACTION_BAR && menu != null) {
			if (menu.getClass().getSimpleName().equals("MenuBuilder")) {
				try {
					Method m = menu.getClass().getDeclaredMethod(
							"setOptionalIconsVisible", Boolean.TYPE);
					m.setAccessible(true);
					m.invoke(menu, true);
				} catch (Exception e) {
					Log.d("OverflowIconVisible", e.getMessage());
				}
			}
		}
	}

	private void turnAround() {
		Intent intent = new Intent();                   
        intent.setClass(MainActivity.this, aide.class);
        startActivity(intent); 
	}
}

主界面效果图

设置界面效果图：

第三部分：splash Avtivity（启动画面）

package com.example.pedometre;

import android.os.*;
import android.content.Intent;
import android.app.*;
import android.view.*;

public class splash extends Activity{
	@Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN); 
        setContentView(R.layout.splash);
        new CountDownTimer(2000,100) {
        	 @Override
        	   public void onTick(long millisUntilFinished) {
        	   }
        	         @Override
        	         public void onFinish() {   
        	          Intent intent = new Intent();                   
        	          intent.setClass(splash.this, MainActivity.class);
        	          startActivity(intent); 
        	          finish();                  
        	         }
        	              }.start();
        	 
        }
}

效果图

第四部分：carteDraw（绘制轨迹路线）

package com.example.pedometre;

import com.example.pedometre.MainActivity;

import android.annotation.SuppressLint;
import android.app.ActionBar;
import android.app.Activity;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.os.Bundle;
import android.view.MenuItem;
import android.view.View;

public class carteDraw extends Activity{

	 @Override
	 protected void onCreate(Bundle savedInstanceState) {
	      super.onCreate(savedInstanceState);
	      
	      ActionBar actionBar = getActionBar();
	      actionBar.setDisplayHomeAsUpEnabled(true);
	      
	      MyView myView = new MyView(this);
	      setContentView(myView);
	    }
	 
	 private class MyView extends View{
		 public MyView(Context context)
		    {
		      super(context);
		    }
		 
		 @SuppressLint("DrawAllocation") @Override
		    public void onDraw(Canvas canvas){
			  super.onDraw(canvas);
			 
			  Paint paint = new Paint();
		      paint.setAntiAlias(true);
		      paint.setColor(Color.YELLOW);
		      paint.setStyle(Paint.Style.FILL);
		      paint.setStrokeWidth(3);
		      
		      int r_w=canvas.getWidth();
		      int r_h=canvas.getHeight();
		     int f_w=(int) (MainActivity.max_width*2);
		      int f_h=(int) (MainActivity.max_height*2);
		      float rate=3;
		      if (MainActivity.total_step<=20){
		    	  rate=25;
		      }
		      else
		    	  if (MainActivity.total_step<=100){
		    		  rate=10; 
		    	  }
		    	  else
		    		  if (MainActivity.total_step<=400){
		    			  rate=5;
		    		  }
		    		  else
		    		  { rate=3;}
		    	  
		    
		      float x=r_w/2;float y=r_h/2;
		      for (int i=1;i<=MainActivity.total_step;i++){
		    	  canvas.drawLine(x, y, (float) (x+rate*Math.sin(MainActivity.da_st[i])), (float) (y+rate*Math.cos(MainActivity.da_st[i])), paint);
		    	  x=(float) (x+rate*Math.sin(MainActivity.da_st[i]));
		    	  y=(float) (y+rate*Math.cos(MainActivity.da_st[i]));
		      }
		 }
	 }
	 
	 @Override
	    public boolean onOptionsItemSelected(MenuItem item) {
	        switch (item.getItemId()){
	        case android.R.id.home:
	        	finish();
	        	return true;
	        default:
	        	return super.onOptionsItemSelected(item);
	        }
	 }
}

效果图：

第五部分：记录步数

package com.example.pedometre;

import android.content.Context;
import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.SensorManager;
import android.util.Log;

public class StepDetector implements SensorEventListener {
	public static int CURRENT_SETP = 0;
	public static float SENSITIVITY = 3;
	public static float time_jg=500;
	public static float step_long=0.5f;
	
	private float mLastValues[] = new float[3 * 2];
	private float mScale[] = new float[2];
	private float mYOffset;
	private static long end = 0;
	private static long start = 0;

	private float mLastDirections[] = new float[3 * 2];
	private float mLastExtremes[][] = { new float[3 * 2], new float[3 * 2] };
	private float mLastDiff[] = new float[3 * 2];
	private int mLastMatch = -1;
	
	public StepDetector(Context context){
		int h = 480;
		mYOffset = h * 0.5f;
		mScale[0] = -(h * 0.5f * (1.0f / (SensorManager.STANDARD_GRAVITY * 2)));
		mScale[1] = -(h * 0.5f * (1.0f / (SensorManager.MAGNETIC_FIELD_EARTH_MAX)));
	}

	@SuppressWarnings("deprecation")
	@Override
	public void onSensorChanged(SensorEvent event) {
		Sensor mSensor = event.sensor;
		synchronized (this) {
			if (mSensor.getType() == Sensor.TYPE_ORIENTATION) {
			} else {
				int j = (mSensor.getType() == Sensor.TYPE_ACCELEROMETER) ? 1 : 0;
				if (j == 1) {
					float vSum = 0;
					for (int i = 0; i < 3; i++) {
						final float v = mYOffset + event.values[i] * mScale[j];
						vSum += v;
					}
					int k = 0;
					float v = vSum / 3;

					float direction = (v > mLastValues[k] ? 1: (v < mLastValues[k] ? -1 : 0));
					if (direction == -mLastDirections[k]) {
						// Direction changed
						int extType = (direction > 0 ? 0 : 1); // minumum or
						// maximum?
						mLastExtremes[extType][k] = mLastValues[k];
						float diff = Math.abs(mLastExtremes[extType][k]- mLastExtremes[1 - extType][k]);

						if (diff > SENSITIVITY) {
							boolean isAlmostAsLargeAsPrevious = diff > (mLastDiff[k] * 2 / 3);
							boolean isPreviousLargeEnough = mLastDiff[k] > (diff / 3);
							boolean isNotContra = (mLastMatch != 1 - extType);

							if (isAlmostAsLargeAsPrevious && isPreviousLargeEnough && isNotContra) {
								end = System.currentTimeMillis();
								if (end - start > time_jg) {
									Log.i("StepDetector", "CURRENT_SETP:"
											+ CURRENT_SETP);
									CURRENT_SETP++;
									mLastMatch = extType;
									start = end;
								}
							} else {
								mLastMatch = -1;
							}
						}
						mLastDiff[k] = diff;
					}
					mLastDirections[k] = direction;
					mLastValues[k] = v;
				}
			}
		}
	}

	@Override
	public void onAccuracyChanged(Sensor sensor, int accuracy) {}
}

package com.example.pedometre;

import com.example.pedometre.StepDetector;

import android.app.Service;
import android.content.Context;
import android.content.Intent;
import android.hardware.Sensor;
import android.hardware.SensorManager;
import android.os.IBinder;
import android.os.PowerManager;
import android.os.PowerManager.WakeLock;

public class StepCounterService extends Service {

	public static boolean FLAG = false;
	private SensorManager mSensorManager;
	private StepDetector mStepDetector;
	private PowerManager mPowerManager;
	private WakeLock mWakeLock;
	
	@Override
	public IBinder onBind(Intent intent) {
		return null;
	}
	
	@SuppressWarnings("deprecation")
	@Override
	public void onCreate() {
		super.onCreate();
		FLAG = true;
		mStepDetector = new StepDetector(this);
		mSensorManager = (SensorManager) this.getSystemService(SENSOR_SERVICE);
		mSensorManager.registerListener(mStepDetector, 
				mSensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER), 
				SensorManager.SENSOR_DELAY_FASTEST);
		
		mPowerManager = (PowerManager) this.getSystemService(Context.POWER_SERVICE);
		mWakeLock = mPowerManager.newWakeLock(PowerManager.SCREEN_DIM_WAKE_LOCK|PowerManager.ACQUIRE_CAUSES_WAKEUP, 
				"s");
		mWakeLock.acquire();
	}
	
	@Override
	public void onDestroy() {
		// TODO Auto-generated method stub
		super.onDestroy();
		FLAG = false;
		if(mStepDetector != null){
			mSensorManager.unregisterListener(mStepDetector);
		}
		if(mWakeLock != null){
			mWakeLock.release();
		}
	}
}

第六部分：摇一摇切歌

package com.example.pedometre;

import android.annotation.SuppressLint;
import android.app.ActionBar;
import android.app.Activity;
import android.content.Intent;
import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.SensorManager;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;

public class mPlayer extends Activity{
	private int questop=0;
	private int it=0;
	private Button but_stop;
	private SensorManager sensorManager;
	private static final int SENSOR_SHAKE = 10;

	@Override
	 protected void onCreate(Bundle savedInstanceState) {
	      super.onCreate(savedInstanceState);
	      setContentView(R.layout.musicplay);
	      but_stop=(Button)findViewById(R.id.mus_stop);
	      ActionBar actionBar = getActionBar();
	      actionBar.setDisplayHomeAsUpEnabled(true);
	      sensorManager = (SensorManager) getSystemService(SENSOR_SERVICE);
	    }
	
	@Override
	protected void onResume(){
		super.onResume();
		if (sensorManager != null) {
			sensorManager.registerListener(sensorEventListener,sensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER),
					SensorManager.SENSOR_DELAY_GAME);
		}
	}
	
	@Override
	protected void onDestroy(){
		super.onStop();
	}
	
	 @Override
	    public boolean onOptionsItemSelected(MenuItem item) {
	        switch (item.getItemId()){
	        case android.R.id.home:
	        	finish();
	        	return true;
	        default:
	        	return super.onOptionsItemSelected(item);
	        }
	 }
	 
	 private SensorEventListener sensorEventListener = new SensorEventListener() {
		 @Override
		 public void onSensorChanged(SensorEvent event) {
			 float[] values = event.values;
			 float x = values[0];
			 float y = values[1];
			 float z = values[2]; 
			 int medumValue = 17;
			 if (Math.abs(x) > medumValue || Math.abs(y) > medumValue || Math.abs(z) > medumValue) {
				 Message msg = new Message();
				 msg.what = SENSOR_SHAKE;
				 handler.sendMessage(msg);
			 }
		 }

		@Override
		public void onAccuracyChanged(Sensor sensor, int accuracy) {
		}
	 };
	 
	 @SuppressLint("HandlerLeak") Handler handler = new Handler() {
		 @Override
		 public void handleMessage(Message msg){
			 super.handleMessage(msg);
			 switch (msg.what) {
			 case SENSOR_SHAKE:
				 if (questop==1){
					 it++;
					 if (it>9){
						 it=1;
					 }
					 onPlay(it);
				 }
				 break;
			 }
		 }
	 };
	
	 public void onClick_exit(View v){
		 Intent intent=new Intent(mPlayer.this,mPlayerService.class);
		 intent.putExtra("playing", 10);
		 startService(intent); 
		 finish();
	 }
	 
	 public void onClick_stop(View v){
		 if (questop==0){
			 Intent intent=new Intent(mPlayer.this,mPlayerService.class);
			 intent.putExtra("playing", 11);
			 startService(intent);
			 but_stop.setText("Arrêter");
			 questop=1;
		 }
		 else{
			 Intent intent=new Intent(mPlayer.this,mPlayerService.class);
			 intent.putExtra("playing", 10);
			 startService(intent);
			 but_stop.setText("Continuer");
			 questop=0;
		 }
	 }
	 
	 private void onPlay(int i) {
		 Intent intent=new Intent(mPlayer.this,mPlayerService.class);
		 intent.putExtra("playing", i);
		 but_stop.setText("Arrêter");
		 questop=1;it=i;
		 startService(intent); 
	}
	
	 public void onClick(View v){
		onPlay(1);
	}
	 
	 public void onClick1(View v){
		onPlay(2);
	}
	 
	 public void onClick2(View v){
		 onPlay(3);
	}
	 
	 public void onClick3(View v){
		 onPlay(4);
	}
	 
	 public void onClick4(View v){
		 onPlay(5);
	}
	 
	 public void onClick5(View v){
		 onPlay(6);
	}
	 
	 public void onClick6(View v){
		 onPlay(7);
	}
	 
	 public void onClick7(View v){
		 onPlay(8);
	}
	 
	 public void onClick8(View v){
		 onPlay(9);
	}
}

<pre name="code" class="java">package com.example.pedometre;

import android.app.Service;
import android.content.Intent;
import android.media.MediaPlayer;
import android.os.IBinder;

public class mPlayerService extends Service{
	private MediaPlayer mp;
	
	@Override
	public void onCreate(){
		super.onCreate();
		mp=MediaPlayer.create(this,R.raw.music1);
	}
	
	@Override
	public void onDestroy(){
		super.onDestroy();
		mp.release();
		stopSelf();
	}
	 
	@Override
	public int onStartCommand(Intent intent, int flags, int startId) {
		int playing = intent.getIntExtra("playing", 0);
		switch(playing){
		case 1:
			mp.release();
			mp=MediaPlayer.create(this,R.raw.music1);
			mp.setLooping(true);
			mp.start();
			break;
		case 2:
			mp.release();mp=MediaPlayer.create(this,R.raw.music2);
			mp.setLooping(true);
			mp.start();
			break;
		case 3:
			mp.release();mp=MediaPlayer.create(this,R.raw.music3);
			mp.setLooping(true);
			mp.start();
			break;
		case 4:
			mp.release();mp=MediaPlayer.create(this,R.raw.music4);
			mp.setLooping(true);
			mp.start();
			break;
		case 5:
			mp.release();mp=MediaPlayer.create(this,R.raw.music5);
			mp.setLooping(true);
			mp.start();
			break;
		case 6:
			mp.release();mp=MediaPlayer.create(this,R.raw.music6);
			mp.setLooping(true);
			mp.start();
			break;
		case 7:
			mp.release();mp=MediaPlayer.create(this,R.raw.music7);
			mp.setLooping(true);
			mp.start();
			break;
		case 8:
			mp.release();mp=MediaPlayer.create(this,R.raw.music8);
			mp.setLooping(true);
			mp.start();
			break;
		case 9:
			mp.release();mp=MediaPlayer.create(this,R.raw.music9);
			mp.setLooping(true);
			mp.start();
			break;
		case 10:
			if (mp.isPlaying()){
				mp.pause();
			}
			break;
		case 11:
			if (!(mp.isPlaying())){
				mp.start();
			}
			break;
		}
		return super.onStartCommand(intent, flags, startId);
	}
	@Override
	public IBinder onBind(Intent intent) {
		return null;
	}
}

效果图：

第七部分：帮助信息

package com.example.pedometre;

import android.app.ActionBar;
import android.app.Activity;
import android.os.Bundle;
import android.view.MenuItem;

public class aide extends Activity{
	 @Override
	 protected void onCreate(Bundle savedInstanceState) {
	      super.onCreate(savedInstanceState);
	      setContentView(R.layout.aide);
	      ActionBar actionBar = getActionBar();
	      actionBar.setDisplayHomeAsUpEnabled(true);
	    }
	 
	 @Override
	    public boolean onOptionsItemSelected(MenuItem item) {
	        switch (item.getItemId()){
	        case android.R.id.home:
	        	finish();
	        	return true;
	        default:
	        	return super.onOptionsItemSelected(item);
	        }
	 }
}

效果图：

第八部分：布局文件

<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/drawer_layout"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >
    <FrameLayout
        android:id="@+id/framelayout"
        android:layout_width="match_parent"
        android:layout_height="match_parent" >
         <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="@drawable/bg_chunse"
        android:paddingBottom="@dimen/activity_vertical_margin"
        android:paddingLeft="@dimen/activity_horizontal_margin"
        android:paddingRight="@dimen/activity_horizontal_margin"
        android:paddingTop="@dimen/activity_vertical_margin"
        android:orientation="vertical" >
        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="60dp"
            android:layout_marginLeft="@dimen/horizontal"
            android:orientation="horizontal">
            <ImageButton
                android:layout_height="50dp"
                android:layout_width="50dp"
                android:layout_gravity="center_vertical"
                android:background="@drawable/time_duree">
            </ImageButton>
            <Chronometer
                android:id ="@+id/chronometer"
                android:layout_height="match_parent"
                android:layout_width="wrap_content"
                android:layout_weight="1"
                android:format="%s"
                android:gravity="center"
                android:textSize="22sp"
                android:textColor="#030303"/>
            <ImageButton 
                android:layout_height="50dp"
                android:layout_width="50dp"
                android:layout_gravity="center_vertical"
                android:background="@drawable/distance"/>
            <TextView 
                android:id="@+id/sy_distance"
                android:gravity="center"
                android:text="0 km"
                android:textSize="22sp"
                android:textColor="#030303"
                android:layout_weight="1"
                android:layout_width="wrap_content"
                android:layout_height="match_parent"/>
        </LinearLayout>
        
        <LinearLayout
            android:layout_height="60dp"
            android:layout_width="match_parent"
            android:layout_marginLeft="@dimen/horizontal"
            android:orientation="horizontal">
            <ImageButton
                android:layout_height="50dp"
                android:layout_width="50dp"
                android:layout_gravity="center_vertical"
                android:background="@drawable/sy_caluli">
            </ImageButton>
            <TextView 
                android:id="@+id/sy_caluli"
                android:gravity="center"
                android:text="0 kcal"
                android:textSize="22sp"
                android:textColor="#030303"
                android:layout_weight="1"
                android:layout_width="wrap_content"
                android:layout_height="match_parent"/>
            <ImageButton 
                android:layout_height="50dp"
                android:layout_width="50dp"
                android:layout_gravity="center_vertical"
                android:background="@drawable/vitesse"/>
            <TextView 
                android:id="@+id/sy_vitesse"
                android:gravity="center"
                android:text="0 km/h"
                android:textSize="22sp"
                android:textColor="#030303"
                android:layout_weight="1"
                android:layout_width="wrap_content"
                android:layout_height="match_parent"/>
        </LinearLayout>
        
        <TextView android:layout_width="match_parent"
                  android:layout_height="10sp"/>"
        
        <TextView
        android:id="@+id/tv_step"
        android:layout_width="220sp"
        android:layout_height="220sp"
        android:background="@drawable/circle_button"
        android:layout_gravity="center_horizontal"
        android:gravity="center"
        android:text="0"
        android:textColor="#FF0000"
        android:textSize="60sp" />
        
        <TextView android:layout_width="match_parent"
                  android:layout_height="10sp"/>
        
        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="vertical">
        <LinearLayout 
            android:layout_height="wrap_content"
            android:layout_width="match_parent"
            android:layout_weight="1"
            android:orientation="horizontal">
            <Button
               android:id="@+id/btn_start"
               android:layout_width="match_parent"
               android:layout_height="match_parent"
               android:layout_weight="1"
               android:onClick="btnClick"
               android:text="@string/start" />
    
            <Button
               android:id="@+id/btn_stop"
               android:layout_width="match_parent"
               android:layout_height="match_parent"
               android:layout_weight="1"
               android:onClick="btnClick"
               android:text="@string/stop" />
         </LinearLayout> 
         
         <LinearLayout 
            android:layout_height="wrap_content"
            android:layout_width="match_parent"
            android:layout_weight="1"
            android:orientation="horizontal">
            <Button
               android:id="@+id/btn_map"
               android:layout_width="match_parent"
               android:layout_height="match_parent"
               android:layout_weight="1"
               android:onClick="btnClick"
               android:text="@string/map" />
    
            <Button
               android:id="@+id/btn_music"
               android:layout_width="match_parent"
               android:layout_height="match_parent"
               android:layout_weight="1"
               android:onClick="btnClick"
               android:text="@string/music" />
         </LinearLayout>
         </LinearLayout>
    </LinearLayout>
    </FrameLayout>
    <ListView
            android:id="@+id/left_drawer"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="start"
            android:background="#8B0000"
            android:divider="#CD853F"
            android:dividerHeight="3dp" />
</android.support.v4.widget.DrawerLayout>

<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
    android:background="@drawable/bg_chunse"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >
            <RelativeLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content" >

                <TextView
                    android:id="@+id/version_lable"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_gravity="center_vertical"
                    android:paddingLeft="10dip"
                    android:paddingTop="5dip"
                    android:text="@string/version_lable"
                    android:textColor="@color/orange"
                    android:textSize="22sp" />

                <TextView
                    android:id="@+id/version_val"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_gravity="center_vertical"
                    android:layout_toRightOf="@+id/version_lable"
                    android:paddingLeft="10dip"
                    android:paddingTop="5dip"
                    android:textColor="@color/green"
                    android:textSize="22sp" />

                <TextView
                    android:id="@+id/description"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:layout_below="@+id/version_lable"
                    android:gravity="left"
                    android:paddingLeft="10dip"
                    android:paddingRight="10dip"
                    android:paddingTop="10dip"
                    android:text="@string/about_desc"
                    android:textColor="@color/gray"
                    android:textSize="22sp" >
                </TextView>
            </RelativeLayout>
</ScrollView>

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:background="@drawable/bg_chunse"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >
    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_margin="5dp"
        android:scrollX="2dp"
        android:textColor="#8B4513"
        android:textSize="18dp"
        android:text="@string/musicdec"></TextView>
    <LinearLayout 
        android:layout_width="wrap_content"
        android:layout_gravity="center_horizontal"
        android:layout_height="wrap_content">
        <Button 
            android:id="@+id/mus_stop"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:textColor="#EE0000"
            android:onClick="onClick_stop"
            android:text="@string/stop"/>
        <Button 
            android:id="@+id/mus_exit"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textColor="#EE0000"
            android:layout_weight="1"
            android:onClick="onClick_exit"
            android:text="@string/exit"/>
    </LinearLayout>
    <LinearLayout
        android:orientation="vertical"
        android:layout_width="wrap_content"
        android:layout_gravity="center_horizontal"
        android:layout_height="match_parent">
        <Button 
            android:id="@+id/mus_1"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:onClick="onClick"
            android:text="@string/music1"/>
        <Button 
            android:id="@+id/mus_2"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:onClick="onClick1"
            android:text="@string/music2"/>
        <Button 
            android:id="@+id/mus_3"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:onClick="onClick2"
            android:text="@string/music3"/>
        <Button 
            android:id="@+id/mus_4"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:onClick="onClick3"
            android:text="@string/music4"/>
        <Button 
            android:id="@+id/mus_5"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:onClick="onClick4"
            android:text="@string/music5"/>
        <Button 
            android:id="@+id/mus_6"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:onClick="onClick5"
            android:text="@string/music6"/>
        <Button 
            android:id="@+id/mus_7"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:onClick="onClick6"
            android:text="@string/music7"/>
        <Button 
            android:id="@+id/mus_8"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:onClick="onClick7"
            android:text="@string/music8"/>
        <Button 
            android:id="@+id/mus_9"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:onClick="onClick8"
            android:text="@string/music9"/>
        
    </LinearLayout>
</LinearLayout>

<?xml version="1.0" encoding="utf-8"?>
<ImageView xmlns:android="http://schemas.android.com/apk/res/android"
    android:contentDescription="@string/app_name"
    android:layout_width="match_parent"
    android:layout_height="match_parent" 
    android:src="@drawable/splash"
    android:scaleType="fitXY">
</ImageView>

第九部分：string_value

<?xml version="1.0" encoding="utf-8"?>
<resources>

    <string name="app_name">pédomètre</string>
    <string name="action_settings">Réglages</string>
    <string name="help">Assistance</string>
    <string name="version_lable">Plus d\'infos</string>
    <string name="about_desc">Bonjour! Bienvenue à l\'utilisation de ce logiciel.\n\nCe logiciel vous permet d\'enregistrer le nombre de pas, de dessiner votre piste et de vous repaître de la musique.\n\nSi vous avez des questions, n\'hésitez pas à me contacter. Mon
        numéro de téléphone portable est +86 15156293795 et mon e-mail adresse est
        [email protected].\n\nJe vous souhaite tous mes vœux de bonheur!</string>
    <string name="edit_text">edit</string>
    <string name="file">file</string>
    <string name="about">about</string>
    <string name="exit">Echapper</string>
    <string name="music">Musique</string>
    <string name="map">Carte</string>
    <string name="start">Commencer</string>
    <string name="stop">Arrêter</string>
    <string name="musicdec">Vous pouvez sélectionner une chanson en appuyant sur un bouton.\nPour les changer, il suffit que vous secouiez votre portable.</string>
    <string name="music1">假如爱有天意..... 李健</string>
    <string name="music2">年轮...........张碧晨</string>
    <string name="music3">默........... 那英</string>
    <string name="music4">小水果..........筷子兄弟</string>
    <string name="music5">匆匆那年.........王菲</string>
    <string name="music6">不可说......... 霍建华/赵丽颖</string>
    <string name="music7">全民共舞........ 正月十五</string>
    <string name="music8">剩下的盛夏.......TFBOYS</string>
    <string name="music9">明天你好........ 牛奶咖啡</string>
    <string name="restart">Continuer</string>
</resources>