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
baoyukun1994@126.com.\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>