我是 android 新手，最近开始学习 Android，我正在尝试通过其唯一的 android id 获取任何 android 设备的位置。这样我就可以通过 GPS 或网络提供商跟踪大致或准确的位置。详细地说，每当我在我的应用程序中输入任何 Android id 时，我都可以在我的应用程序中获取设备位置。感谢您的热心帮助。
【问题讨论】：
标签： android gps geolocation google-maps-android-api-2 gprs
我终于可以使用这段代码了：
public class MyService extends Service implements LocationListener{
String GPS_FILTER = "";
Thread triggerService;
LocationListener locationListener;
LocationManager lm;
private static final long MINIMUM_DISTANCE_CHANGE_FOR_UPDATES = 10; // 10 meter
private static final long MINIMUM_TIME_BETWEEN_UPDATES = 1000 * 60 * 3; // 1 minute
protected LocationManager locationManager;
boolean isRunning = true;
Calendar cur_cal = Calendar.getInstance();
Location location;
double latitude; // latitude
double longitude;
UserFunctions userFunction;
private JSONObject json;
private AlertDialogManager alert = new AlertDialogManager();
private static String KEY_SUCCESS = "success";
private static String KEY_ERROR = "error";
private static String KEY_ERROR_MSG = "error_msg";
private static String KEY_FLAG = "flag";
String android_id ;
String userName;
@Override
public void onCreate() {
// TODO Auto-generated method stub
super.onCreate();
Intent intent = new Intent(this, MyService.class);
PendingIntent pintent = PendingIntent.getService(getApplicationContext(),
0, intent, 0);
AlarmManager alarm = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
android_id = Settings.Secure.getString(getContentResolver(),
Settings.Secure.ANDROID_ID);
if (getAccount() != null) {
userName = getAccount();
}
GPS_FILTER = "MyGPSLocation";
// locationManager = (LocationManager)
// getSystemService(Context.LOCATION_SERVICE);
// locationManager.requestLocationUpdates(
// LocationManager.GPS_PROVIDER,
// MINIMUM_TIME_BETWEEN_UPDATES,
// MINIMUM_DISTANCE_CHANGE_FOR_UPDATES,
// new MyLocationListener());
cur_cal.setTimeInMillis(System.currentTimeMillis());
alarm.setRepeating(AlarmManager.RTC_WAKEUP, cur_cal.getTimeInMillis(),
60 * 1000*3, pintent);
}
@Override
public void onStart(Intent intent, int startId) {
// TODO Auto-generated method stub
super.onStart(intent, startId);
//turnGPSOn();
/*Toast.makeText(getApplicationContext(), "Hello1", Toast.LENGTH_LONG)
.show();*/
LocationManager locationManager = (LocationManager) getSystemService(LOCATION_SERVICE);
locationListener = new MyLocationListener();
locationManager.requestLocationUpdates(
LocationManager.NETWORK_PROVIDER,
MINIMUM_TIME_BETWEEN_UPDATES,
MINIMUM_DISTANCE_CHANGE_FOR_UPDATES, (LocationListener) this);
if (locationManager != null) {
location = locationManager
.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
if (location != null) {
latitude = location.getLatitude();
longitude = location.getLongitude();
/*Toast.makeText(getApplicationContext(), latitude + ", ll" + longitude, Toast.LENGTH_LONG)
.show();*/
userFunction = new UserFunctions();
new YourAsyncTaskLogin().execute();
}
}
location =locationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER,
MINIMUM_TIME_BETWEEN_UPDATES, 1.0f, locationListener);
}
@Override
public void onDestroy() {
// TODO Auto-generated method stub
super.onDestroy();
// removeGpsListener();
}
@Override
public IBinder onBind(Intent intent) {
// TODO Auto-generated method stub
return null;
}
// private void removeGpsListener(){
// try{
// lm.removeUpdates(locationManager);
// }
// catch(Exception ex){
// System.out.println("Exception in GPSService --- "+ex);
// }
// }
private class MyLocationListener implements LocationListener {
public void onLocationChanged(Location location) {
postdata(location.getLatitude(), location.getLongitude());
String message = String.format(
"New Location \n Longitude: %1$s \n Latitude: %2$s",
location.getLongitude(), location.getLatitude());
/*Toast.makeText(MyService.this, message, Toast.LENGTH_LONG).show();
turnGPSOff();*/
}
private void postdata(double latitude, double longitude) {
// TODO Auto-generated method stub
/*Toast.makeText(getApplicationContext(),
latitude + ", " + longitude, Toast.LENGTH_LONG).show();*/
}
public void onStatusChanged(String s, int i, Bundle b) {
// Toast.makeText(MyService.this, "Provider status changed",
// Toast.LENGTH_LONG).show();
}
public void onProviderDisabled(String s) {
// Toast.makeText(MyService.this,
// "Provider disabled by the user. GPS turned off",
// Toast.LENGTH_LONG).show();
}
public void onProviderEnabled(String s) {
// Toast.makeText(MyService.this,
// "Provider enabled by the user. GPS turned on",
// Toast.LENGTH_LONG).show();
}
}
public void turnGPSOn() {
Intent intent = new Intent("android.location.GPS_ENABLED_CHANGE");
intent.putExtra("enabled", true);
this.sendBroadcast(intent);
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("3"));
this.sendBroadcast(poke);
}
}
// automatic turn off the gps
public void turnGPSOff() {
String provider = Settings.Secure.getString(getContentResolver(),
Settings.Secure.LOCATION_PROVIDERS_ALLOWED);
if (provider.contains("gps")) { // if gps is enabled
final Intent poke = new Intent();
poke.setClassName("com.android.settings",
"com.android.settings.widget.SettingsAppWidgetProvider");
poke.addCategory(Intent.CATEGORY_ALTERNATIVE);
poke.setData(Uri.parse("3"));
this.sendBroadcast(poke);
}
}
@Override
public void onLocationChanged(Location location) {
// TODO Auto-generated method stub
}
@Override
public void onStatusChanged(String provider, int status, Bundle extras) {
// TODO Auto-generated method stub
}
@Override
public void onProviderEnabled(String provider) {
// TODO Auto-generated method stub
}
@Override
public void onProviderDisabled(String provider) {
// TODO Auto-generated method stub
}
class YourAsyncTaskLogin extends AsyncTask<Void, Void, Void> {
//private ProgressDialog _ProgressDialog;
@Override
protected void onPreExecute() {
// show your dialog here
/*_ProgressDialog = ProgressDialog.show(getApplicationContext(), "",
"Loading", true);*/
}
@Override
protected Void doInBackground(Void... params) {
json = userFunction.sendLocations(android_id, userName,latitude+"", longitude+"");
return null;
}
protected void onPostExecute(Void result) {
try {
Log.e("Key_Success:",
json.getString(KEY_SUCCESS));
if (json.getString(KEY_SUCCESS) != null) {
// loginErrorMsg.setText("");
String res = json.getString(KEY_SUCCESS);
if (Integer.parseInt(res) == 1) {
} else {
// Error in login
// loginErrorMsg.setText("Incorrect username/password");
//_ProgressDialog.cancel();
}
} else {
// Error in login
// loginErrorMsg.setText("Incorrect username/password");
//_ProgressDialog.cancel();
}
} catch (JSONException e) {
e.printStackTrace();
Log.e("error", e.getMessage());
}
//_ProgressDialog.dismiss();
}
}
public String getAccount() {
AccountManager manager = (AccountManager) getSystemService(ACCOUNT_SERVICE);
Account[] list = manager.getAccountsByType("com.google");
if (list.length != 0) {
String email = list[0].name;
return email;
} else {
return null;
}
}
}
【讨论】：
如果您想获取在其手机中安装了您的应用程序的任何设备的位置，您可以获取它， 首先，在您的应用程序中，您可以使用 memberid 将位置上传到您的服务器（您可以设置它，对于每个设备都是唯一的），每 x 次（您可以设置更新位置的次数）。 然后你可以在你的服务器上检查你的数据库在哪个设备上。
（我的建议你可以使用网络服务来更新你服务器上的数据库）
【讨论】：