我的是一个安卓追踪应用。它获取 gps 位置并将其发送到服务器。如果未找到 gps 位置，则使用小区 ID 获取位置。它在 android 2.3.3 中运行良好。它也适用于 android 4.1.2，但会在一段时间后停止（2 小时或 8 小时，有时 1 天），没有任何强制关闭消息。我用谷歌搜索但没有找到错误。2.3.3 中是否已弃用任何方法。下面是我的代码。该服务由 启动的 重复BroadcastReceiver启动AlarmManager。
我在清单文件中写了这个：
<uses-sdk android:minSdkVersion="7"
android:targetSdkVersion="18"/>
GPSLoggerService 类：
public class GPSLoggerService extends Service implements LocationListener {
@Override
public void onCreate() {
AppLog.logString("GPSLoggerService.onCreate().");
final SharedPreferences settings = getSharedPreferences(PREFS_NAME, MODE_PRIVATE);
AppLog.logString("GPSLoggerService.onCreate().");
data_mode = settings.getInt("data_mode", 1);
boolean firstRecordAfterBoot = settings.getBoolean("justBooted", false);
settings.edit().putBoolean("justBooted", false);
super.onCreate();
// db = new DBAdapter(this);
}
public int onStartCommand(Intent intent, int flags, int startId) {
appendLog("in onStartCommend, ");
AppLog.logString("GPSLoggerService.onStartCommand().");
this.registerReceiver(this.mBatInfoReceiver, new IntentFilter(Intent.ACTION_BATTERY_CHANGED));
startLoggingService();
startMonitoringTimer();
try {
sendData();
} catch (ClientProtocolException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
// dbadapter = new DBAdapter(this);
return Service.START_STICKY;
}
@Override
public void onLocationChanged(Location location) {
appendLog("onLocationChanged, ");
AppLog.logString("GPSLoggerService.onLocationChanged().");
didFindLocation = true;
latitude = location.getLatitude();
longitude = location.getLongitude();
altitude = location.getAltitude();
// Toast.makeText(getApplicationContext(),"lat :"+latitude+"longi :"+longitude,
// Toast.LENGTH_LONG).show();
gpsaltitude = String.valueOf(altitude);
gpslatitude = String.valueOf(latitude);
gpslongitude = String.valueOf(longitude);
mps = location.getSpeed();
kmh = (float) (mps * 3.6);
speed = Float.toString(kmh);
SimpleDateFormat sdfDateTime = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
datetime = sdfDateTime.format(new Date(location.getTime()));
appendLog(datetime + ", ");
}
@Override
public void onProviderDisabled(String provider) {
AppLog.logString("GPSLoggerService.onProviderDisabled().");
appendLog("onLocationChanged, ");
}
@Override
public void onProviderEnabled(String provider) {
AppLog.logString("GPSLoggerService.onProviderEnabled().");
appendLog("onProviderEnabled, ");
}
@Override
public void onStatusChanged(String provider, int status, Bundle extras) {
AppLog.logString("GPSLoggerService.onStatusChanged().");
appendLog("onStatusChanged, ");
}
private void startLoggingService() {
AppLog.logString("GPSLoggerService.startLoggingService.");
turnGPSOn();
db = new DBAdapter(this);
if (manager == null) {
manager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
}
ma = new MainActivity();
final Criteria criteria = new Criteria();
criteria.setAccuracy(Criteria.ACCURACY_FINE);
criteria.setAltitudeRequired(true);
criteria.setSpeedRequired(true);
criteria.setBearingRequired(true);
criteria.setPowerRequirement(Criteria.POWER_LOW);
final String bestProvider = manager.getBestProvider(criteria, true);
if (bestProvider != null && bestProvider.length() > 0) {
manager.requestLocationUpdates(bestProvider, gpsMinTime, gpsMinDistance, this);
startTimer();
} else {
final List<String> providers = manager.getProviders(true);
for (final String provider : providers) {
manager.requestLocationUpdates(provider, gpsMinTime, gpsMinDistance, this);
startTimer();
}
}
}
private void stopLoggingService() {
this.unregisterReceiver(this.mBatInfoReceiver);
stopSelf();
}
private void startMonitoringTimer() {
monitoringTimer = new Timer();
AppLog.logString("GPSLoggerService.monitoringTimer.");
monitoringTimer.scheduleAtFixedRate(new TimerTask() {
@Override
public void run() {
if (longitude != 0.0 && latitude != 0.0) {
monitoringTimer.cancel();
monitoringTimer = null;
turnGPSOn();
saveData();
manager.removeUpdates(GPSLoggerService.this);
stopLoggingService();
}
}
}, GPSLoggerService.TIMER_DELAY, GPSLoggerService.TIMER_DELAY);
}
private void startTimer() {
AppLog.logString("GPSLoggerService.countDownTimer.");
appendLog("startTimer, ");
// Toast.makeText(getApplicationContext(),"data_mode="+data_mode,
// Toast.LENGTH_LONG).show();
if (countDownTimer != null) {
countDownTimer.cancel();
countDownTimer = null;
}
countDownTimer = new CountDownTimer(15000L, 1000L) {// 15 seconds
// max
@Override
public void onTick(long millisUntilFinished) {
if (didFindLocation) {
countDownTimer.cancel();
}
}
@Override
public void onFinish() {
if (!didFindLocation) {
appendLog("onFinish, ");
manager.removeUpdates(GPSLoggerService.this);
// stopSelf()
if (data_mode == 1) {
cellID();
} else {
/*
* TelephonyManager telephonyManager =
* (TelephonyManager
* )getSystemService(Context.TELEPHONY_SERVICE);
* imeiCellID = telephonyManager.getDeviceId();
* SimpleDateFormat sdfDateTime = new
* SimpleDateFormat( "yyyy-MM-dd HH:mm:ss");
* datetimeCellID = sdfDateTime.format(new Date());
* db.open();
* id=db.insertData(imeiCellID,"null","null"
* ,datetimeCellID,"null","null",level1);
* db.close();
*/
Toast.makeText(getApplicationContext(), "GPS : Cant find Location", Toast.LENGTH_LONG).show();
}
stopLoggingService();
}
}
};
countDownTimer.start();
}
private void turnGPSOn() {
String provider = Settings.Secure.getString(getContentResolver(), Settings.Secure.LOCATION_PROVIDERS_ALLOWED);
if (!provider.contains("gps")) { // if gps is disabled
final Intent poke = new Intent();
poke.setClassName("com.android.settings", "com.android.settings.widget.SettingsAppWidgetProvider");
poke.addCategory(Intent.CATEGORY_ALTERNATIVE);
poke.setData(Uri.parse("1"));
sendBroadcast(poke);
}
}
public void appendLog(String text) {
// Toast.makeText(getApplicationContext(),"oncreate",
// Toast.LENGTH_LONG).show();
File folder3 = new File(Environment.getExternalStorageDirectory(), "BPCLTracker");
if (!folder3.exists()) {
folder3.mkdirs();
}
try {
File kmlFile3 = new File(folder3.getPath(), "logfile.txt");
if (!kmlFile3.exists()) {
kmlFile3.createNewFile();
}
RandomAccessFile fileAccess3 = new RandomAccessFile(kmlFile3, "rw");
FileLock lock = fileAccess3.getChannel().lock();
fileAccess3.seek(kmlFile3.length());
fileAccess3.write(text.getBytes());
lock.release();
fileAccess3.close();
} catch (IOException e) {
e.printStackTrace();
}
}
public boolean isInternetOn() {
ConnectivityManager connec = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
// ARE WE CONNECTED TO THE NET
if (connec.getNetworkInfo(0).getState() == NetworkInfo.State.CONNECTED || connec.getNetworkInfo(0).getState() == NetworkInfo.State.CONNECTING
|| connec.getNetworkInfo(1).getState() == NetworkInfo.State.CONNECTING || connec.getNetworkInfo(1).getState() == NetworkInfo.State.CONNECTED) {
return true;
} else if (connec.getNetworkInfo(0).getState() == NetworkInfo.State.DISCONNECTED || connec.getNetworkInfo(1).getState() == NetworkInfo.State.DISCONNECTED) {
return false;
}
return false;
}
public int setFlag() {
final SharedPreferences settings = getSharedPreferences(PREFS_NAME, MODE_PRIVATE);
boolean firstRecord = settings.getBoolean("firstRecord", false);
boolean firstRecordAfterBoot = settings.getBoolean("justBooted", false);
if (firstRecord == true) {
flag = 0;
// Toast.makeText(getBaseContext(),"1st record after installation : "+flag,Toast.LENGTH_LONG
// ).show();
settings.edit().putBoolean("firstRecord", false).commit();
} else if (firstRecordAfterBoot == true) {
flag = 1;
// Toast.makeText(getBaseContext(),"1st record after boot : "+flag,Toast.LENGTH_LONG
// ).show();
settings.edit().putBoolean("justBooted", false).commit();
} else {
flag = 2;
// Toast.makeText(getBaseContext(),"regular : "+flag,Toast.LENGTH_LONG
// ).show();
}
return flag;
}
public void cellID() {
appendLog("in cellID, ");
TelephonyManager telephonyManager = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
GsmCellLocation cellLocation = (GsmCellLocation) telephonyManager.getCellLocation();
int cid = cellLocation.getCid();
int lac = cellLocation.getLac();
SimpleDateFormat sdfDateTime = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
datetimeCellID = sdfDateTime.format(new Date());
appendLog(datetimeCellID);
String cell_Id = String.valueOf(cid);
String gsm_Loc_Area_Code = String.valueOf(lac);
// Toast.makeText(getBaseContext(),"cellid="+cell_Id+"\nGsm Location Area Code:"+gsm_Loc_Area_Code,Toast.LENGTH_LONG
// ).show();
if (RqsLocation(cid, lac)) {
TelephonyManager tm = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
imeiCellID = tm.getDeviceId();
latitude_cellID = String.valueOf((float) myLatitude / 1000000);
longitude_cellID = String.valueOf((float) myLongitude / 1000000);
// Toast.makeText(getBaseContext(),"Lat:"+latitude_cellID+"Long:"+longitude_cellID,Toast.LENGTH_LONG
// ).show();
// DBAdapter db=new DBAdapter(this);
// --add contact----
db.open();
setFlag();
datatype = String.valueOf(flag);
id = db.insertData(imeiCellID, latitude_cellID, longitude_cellID, datetimeCellID, "null", "null", level1, datatype, "0");
db.close();
// --get all contacts----------
db.open();
Cursor c = db.getAllData();
if (c.moveToFirst()) {
do {
DisplayData(c);
} while (c.moveToNext());
}
db.close();
}// if
else {
Toast.makeText(getBaseContext(), "CellID : Can't find Location", Toast.LENGTH_LONG).show();
}// else
}// cellID
private Boolean RqsLocation(int cid, int lac) {
appendLog("in req location, ");
// Toast.makeText(getBaseContext(),"inReqloc",Toast.LENGTH_LONG
// ).show();
Boolean result = false;
String urlmmap = "http://www.google.com/glm/mmap";
try {
URL url = new URL(urlmmap);
URLConnection conn = url.openConnection();
HttpURLConnection httpConn = (HttpURLConnection) conn;
httpConn.setRequestMethod("POST");
httpConn.setDoOutput(true);
httpConn.setDoInput(true);
httpConn.connect();
OutputStream outputStream = httpConn.getOutputStream();
WriteData(outputStream, cid, lac);
InputStream inputStream = httpConn.getInputStream();
DataInputStream dataInputStream = new DataInputStream(inputStream);
dataInputStream.readShort();
dataInputStream.readByte();
int code = dataInputStream.readInt();
if (code == 0) {
myLatitude = dataInputStream.readInt();
myLongitude = dataInputStream.readInt();
result = true;
}
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return result;
}
private void WriteData(OutputStream out, int cid, int lac) throws IOException {
DataOutputStream dataOutputStream = new DataOutputStream(out);
dataOutputStream.writeShort(21);
dataOutputStream.writeLong(0);
dataOutputStream.writeUTF("en");
dataOutputStream.writeUTF("Android");
dataOutputStream.writeUTF("1.0");
dataOutputStream.writeUTF("Web");
dataOutputStream.writeByte(27);
dataOutputStream.writeInt(0);
dataOutputStream.writeInt(0);
dataOutputStream.writeInt(3);
dataOutputStream.writeUTF("");
dataOutputStream.writeInt(cid);
dataOutputStream.writeInt(lac);
dataOutputStream.writeInt(0);
dataOutputStream.writeInt(0);
dataOutputStream.writeInt(0);
dataOutputStream.writeInt(0);
dataOutputStream.flush();
}
public void saveData() {
// Toast.makeText(getApplicationContext(),"in saveData",
// Toast.LENGTH_LONG).show();
if (isInternetOn()) {
appendLog("in saveDataAfter if internet is on, ");
TelephonyManager tm = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
imeino = tm.getDeviceId();
// DBAdapter db=new DBAdapter(this);
// --add contact----
db.open();
setFlag();
datatype = String.valueOf(flag);
id = db.insertData(imeino, gpslatitude, gpslongitude, datetime, gpsaltitude, speed, level1, datatype, "1");
db.close();
} else if (!isInternetOn()) {
appendLog("in saveDataAfter if internet is not not on, ");
TelephonyManager tm = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
imeino = tm.getDeviceId();
// DBAdapter db=new DBAdapter(this);
// --add contact----
db.open();
setFlag();
datatype = String.valueOf(flag);
id = db.insertData(imeino, gpslatitude, gpslongitude, datetime, gpsaltitude, speed, level1, datatype, "1");
db.close();
}// elseif
}// end of saveData() function
public void sendData() throws ClientProtocolException, IOException {
// Toast.makeText(getApplicationContext(),"in sendData",
// Toast.LENGTH_LONG).show();
appendLog("sendData, ");
if (isInternetOn()) {
JSONObject jObject = new JSONObject();
try {
// DBAdapter db=new DBAdapter(this);
db.open();
Cursor cursor = db.getAllData();
if (cursor.moveToFirst()) {
do {
jObject = new JSONObject();
jObject.put("Imei", cursor.getString(1));
jObject.put("Lat", cursor.getString(2));
jObject.put("Long", cursor.getString(3));
jObject.put("Gpsdatetime", cursor.getString(4));
jObject.put("Altitude", cursor.getString(5));
jObject.put("Speed", cursor.getString(6));
jObject.put("Battery", cursor.getString(7));
jObject.put("DataType", cursor.getString(8));
jObject.put("DataSource", cursor.getString(9));
String datatoServer = jObject.toString() + "\n";
// Toast.makeText(getApplicationContext(),datatoServer,
// Toast.LENGTH_LONG).show();
HttpEntity entity;
HttpClient client = new DefaultHttpClient();
String url = "http://some IP/insertv2.php";
HttpPost request = new HttpPost(url);
StringEntity se = new StringEntity(datatoServer);
se.setContentEncoding("UTF-8");
se.setContentEncoding(new BasicHeader(HTTP.CONTENT_TYPE, "application/json"));
entity = se;
request.setEntity(entity);
HttpResponse response = client.execute(request);
entity = response.getEntity();
db.deleteContacts(cursor.getLong(0));
} while (cursor.moveToNext());
}// if
db.close();
}// try
catch (JSONException e) {
e.printStackTrace();
}
}
} // method
}// end of service class
错误日志：
11-12 16:43:46.174: E/AndroidRuntime(23962): FATAL EXCEPTION: main
11-12 16:43:46.174: E/AndroidRuntime(23962): android.os.NetworkOnMainThreadException
11-12 16:43:46.174: E/AndroidRuntime(23962): at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1118)
11-12 16:43:46.174: E/AndroidRuntime(23962): at java.net.InetAddress.lookupHostByName(InetAddress.java:385)
11-12 16:43:46.174: E/AndroidRuntime(23962): at java.net.InetAddress.getAllByNameImpl(InetAddress.java:236)
11-12 16:43:46.174: E/AndroidRuntime(23962): at java.net.InetAddress.getAllByName(InetAddress.java:214)
11-12 16:43:46.174: E/AndroidRuntime(23962): at libcore.net.http.HttpConnection.<init>(HttpConnection.java:70)
11-12 16:43:46.174: E/AndroidRuntime(23962): at libcore.net.http.HttpConnection.<init>(HttpConnection.java:50)
11-12 16:43:46.174: E/AndroidRuntime(23962): at libcore.net.http.HttpConnection$Address.connect(HttpConnection.java:340)
11-12 16:43:46.174: E/AndroidRuntime(23962): at libcore.net.http.HttpConnectionPool.get(HttpConnectionPool.java:87)
11-12 16:43:46.174: E/AndroidRuntime(23962): at libcore.net.http.HttpConnection.connect(HttpConnection.java:128)
11-12 16:43:46.174: E/AndroidRuntime(23962): at libcore.net.http.HttpEngine.openSocketConnection(HttpEngine.java:315)
11-12 16:43:46.174: E/AndroidRuntime(23962): at libcore.net.http.HttpEngine.connect(HttpEngine.java:310)
11-12 16:43:46.174: E/AndroidRuntime(23962): at libcore.net.http.HttpEngine.sendSocketRequest(HttpEngine.java:289)
11-12 16:43:46.174: E/AndroidRuntime(23962): at libcore.net.http.HttpEngine.sendRequest(HttpEngine.java:239)
11-12 16:43:46.174: E/AndroidRuntime(23962): at libcore.net.http.HttpURLConnectionImpl.connect(HttpURLConnectionImpl.java:80)
11-12 16:43:46.174: E/AndroidRuntime(23962): at bpcl.gps.tracker.GPSLoggerService.RqsLocation(GPSLoggerService.java:468)
11-12 16:43:46.174: E/AndroidRuntime(23962): at bpcl.gps.tracker.GPSLoggerService.cellID(GPSLoggerService.java:414)
11-12 16:43:46.174: E/AndroidRuntime(23962): at bpcl.gps.tracker.GPSLoggerService$3.onFinish(GPSLoggerService.java:288)
11-12 16:43:46.174: E/AndroidRuntime(23962): at android.os.CountDownTimer$1.handleMessage(CountDownTimer.java:118)
11-12 16:43:46.174: E/AndroidRuntime(23962): at android.os.Handler.dispatchMessage(Handler.java:99)
11-12 16:43:46.174: E/AndroidRuntime(23962): at android.os.Looper.loop(Looper.java:137)
11-12 16:43:46.174: E/AndroidRuntime(23962): at android.app.ActivityThread.main(ActivityThread.java:4947)
11-12 16:43:46.174: E/AndroidRuntime(23962): at java.lang.reflect.Method.invokeNative(Native Method)
11-12 16:43:46.174: E/AndroidRuntime(23962): at java.lang.reflect.Method.invoke(Method.java:511)
11-12 16:43:46.174: E/AndroidRuntime(23962): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1038)
11-12 16:43:46.174: E/AndroidRuntime(23962): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:805)
11-12 16:43:46.174: E/AndroidRuntime(23962): at dalvik.system.NativeStart.main(Native Method)