以下是我的代码，当我接近此代码时
（距离我当前位置不到100米）
9.443469,76.540650
gps位置，我需要振动手机，但是到达那里时，它没有振动，并且显示错误的lan和lon。我的代码有什么问题？
import android.Manifest;
import android.app.ActivityManager;
import android.app.AlarmManager;
import android.app.PendingIntent;
import android.app.Service;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.pm.PackageManager;
import android.location.Address;
import android.location.Geocoder;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Build;
import android.os.Bundle;
import android.os.Handler;
import android.os.IBinder;
import android.os.SystemClock;
import android.os.VibrationEffect;
import android.os.Vibrator;
import android.util.Log;
import android.widget.Toast;
import java.io.IOException;
import java.util.List;
import java.util.Locale;
import androidx.annotation.Nullable;
import io.nlopez.smartlocation.OnLocationUpdatedListener;
import io.nlopez.smartlocation.SmartLocation;
import io.nlopez.smartlocation.location.config.LocationAccuracy;
import io.nlopez.smartlocation.location.config.LocationParams;
public class OfferLocator extends Service {
SmartLocation mSmartLocation;
LocationParams locationParam = null;
double l2 = 9.443469, lo2 = 76.540650, lan = 0, lon = 0;
boolean running = false;
double prelan = 0, prelon = 0;
MyLocationListener locationListener;
int ct = 0;
LocationManager locationManager;
private void info() {
if (locationManager == null) {
locationManager = (LocationManager)
getSystemService(Context.LOCATION_SERVICE);
}
if (locationListener == null) {
locationListener = new MyLocationListener();
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
if (checkSelfPermission(Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && checkSelfPermission(Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
return;
}
}
}
locationManager.requestLocationUpdates(
LocationManager.GPS_PROVIDER, 5000, 5, locationListener);
Log.i("OfferLocator_info","info called "+ct+" times lan lon "+lan+","+lon);
ct++;
new Handler().postDelayed(new Runnable() {
@Override
public void run() {
info();
}
},10000);
try {
if(locationParam==null) locationParam = new LocationParams.Builder().setAccuracy(LocationAccuracy.HIGH).build();
} catch (Exception e){
Log.i("OfferLocatorv2","error2 :"+e.getMessage()+"");
}
}
@Override
public void onCreate() {
super.onCreate();
Log.d("myLog", "Service: onCreate");
try {
locationParam = new LocationParams.Builder().setAccuracy(LocationAccuracy.HIGH).build();
} catch (Exception e){
Log.i("OfferLocatorv2","error2 :"+e.getMessage()+"");
}
info();
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
Log.d("myLog", "Service: onStartCommand");
return START_STICKY;
}
@Override
public void onTaskRemoved(Intent rootIntent) {
Log.d("myLog", "Service: onTaskRemoved");
Intent restartService = new Intent(getApplicationContext(), this.getClass());
restartService.setPackage(getPackageName());
PendingIntent restartServicePI = PendingIntent.getService(
getApplicationContext(), 1, restartService,
PendingIntent.FLAG_ONE_SHOT);
AlarmManager alarmService = (AlarmManager) getApplicationContext().getSystemService(Context.ALARM_SERVICE);
alarmService.set(AlarmManager.ELAPSED_REALTIME, SystemClock.elapsedRealtime() + 1000, restartServicePI);
if (Build.VERSION.SDK_INT <= 19) {
Intent restart = new Intent(getApplicationContext(), this.getClass());
restart.setPackage(getPackageName());
startService(restart);
}
super.onTaskRemoved(rootIntent);
}
@Override
public void onDestroy() {
super.onDestroy();
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
startForegroundService(new Intent(getApplicationContext(),OfferLocator.class));
} else {
startService(new Intent(getApplicationContext(),OfferLocator.class));
}
Log.d("myLog", "Service: onDestroy");
// unregisterReceiver(batteryReceiver);
}
private boolean isMyServiceRunning(Class<?> serviceClass) {
ActivityManager manager = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE);
for (ActivityManager.RunningServiceInfo service : manager.getRunningServices(Integer.MAX_VALUE)) {
if (serviceClass.getName().equals(service.service.getClassName())) {
return true;
}
}
return false;
}
@Nullable
@Override
public IBinder onBind(Intent intent) {
return null;
}
class MyLocationListener implements LocationListener {
String TAG="newloc";
@Override
public void onLocationChanged(Location loc) {
// editLocation.setText("");
// pb.setVisibility(View.INVISIBLE);
double l2 = 9.443469, lo2 = 76.540650;
float[] results = new float[1];
Location.distanceBetween( loc.getLatitude(), loc.getLongitude(),l2,lo2, results);
if (results[0]<100) {
Toast.makeText(getApplicationContext(),"vibrate please "+results[0],Toast.LENGTH_SHORT).show();
try {
Vibrator v = (Vibrator) getSystemService(getApplicationContext().VIBRATOR_SERVICE);
// Vibrate for 500 milliseconds
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
v.vibrate(VibrationEffect.createOneShot(1500, VibrationEffect.DEFAULT_AMPLITUDE));
} else {
//deprecated in API 26
v.vibrate(1500);
}
} catch (Exception e){
Log.i("OfferLocatorv2","error4 :"+e.getMessage()+"");
}
} else {
if (results[0]>500) {
try {
Vibrator v = (Vibrator) getSystemService(getApplicationContext().VIBRATOR_SERVICE);
// Vibrate for 500 milliseconds
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
v.vibrate(VibrationEffect.createOneShot(1500, VibrationEffect.DEFAULT_AMPLITUDE));
} else {
//deprecated in API 26
v.vibrate(1500);
}
}catch (Exception e){
Log.i("OfferLocatorv2","error4 :"+e.getMessage()+"");
}
}
Toast.makeText(getApplicationContext(),"my current location is "+results[0],Toast.LENGTH_SHORT).show();
}
String longitude = "Longitude: " + loc.getLongitude();
Log.v(TAG, longitude);
String latitude = "Latitude: " + loc.getLatitude();
Log.v(TAG, latitude);
/*------- To get city name from coordinates -------- */
String cityName = null;
Geocoder gcd = new Geocoder(getBaseContext(), Locale.getDefault());
List<Address> addresses;
try {
addresses = gcd.getFromLocation(loc.getLatitude(),
loc.getLongitude(), 1);
if (addresses.size() > 0) {
System.out.println(addresses.get(0).getLocality());
cityName = addresses.get(0).getLocality();
}
} catch (IOException e) {
e.printStackTrace();
}
String s = longitude + "\n" + latitude + "\n\nMy Current City is: " + cityName;
// editLocation.setText(s);
}
@Override
public void onProviderDisabled(String provider) {}
@Override
public void onProviderEnabled(String provider) {}
@Override
public void onStatusChanged(String provider, int status, Bundle extras) {}
}
}
最佳答案
如果您已从Google地图获取坐标，则它们可能与通过MapsActivity从同一位置获取的坐标略有不同。尝试使用MapsActivity来获取您希望手机通过另一个应用程序振动的点的坐标，该MapsActivity可以简单地为您提供位置坐标。