************* TrackGPS.java ***************************** import androID.app.AlertDialog; import androID.app.Service; import androID.content.Context; import androID.content.DialogInterface; import androID.content.Intent; import androID.content.pm.PackageManager; import androID.location.Location; import androID.location.LocationListener; import androID.location.LocationManager; import androID.os.Bundle; import androID.os.IBinder; import androID.provIDer.Settings; import androID.support.v4.app.ActivityCompat; import androID.util.Log; import androID.Widget.Toast; /** * Created by ANQ on 8/8/2016. */ public class TrackGPS extends Service implements LocationListener { private final Context mContext; boolean checkGPS = false; boolean checkNetwork = false; boolean canGetLocation = false; Location loc; double latitude; double longitude; private static final long MIN_disTANCE_CHANGE_FOR_UPDATES = 10; private static final long MIN_TIME_BW_UPDATES = 1000 * 60 * 1; protected LocationManager locationManager; public TrackGPS(Context mContext) { this.mContext = mContext; getLocation(); } private Location getLocation() { try { locationManager = (LocationManager) mContext .getSystemService(LOCATION_SERVICE); // getting GPS status checkGPS = locationManager .isProvIDerEnabled(LocationManager.GPS_PROVIDER); // getting network status checkNetwork = locationManager .isProvIDerEnabled(LocationManager.NETWORK_PROVIDER); if (!checkGPS && !checkNetwork) { Toast.makeText(mContext, "No Service ProvIDer Available", Toast.LENGTH_SHORT).show(); } else { this.canGetLocation = true; // First get location from Network ProvIDer if (checkNetwork) { Toast.makeText(mContext, "Network", Toast.LENGTH_SHORT).show(); try { locationManager.requestLocationUpdates( LocationManager.NETWORK_PROVIDER, MIN_TIME_BW_UPDATES, MIN_disTANCE_CHANGE_FOR_UPDATES, this); Log.d("Network", "Network"); if (locationManager != null) { loc = locationManager .getLastKNownLocation(LocationManager.NETWORK_PROVIDER); } if (loc != null) { latitude = loc.getLatitude(); longitude = loc.getLongitude(); } } catch(SecurityException e){ } } } // if GPS Enabled get lat/long using GPS Services if (checkGPS) { Toast.makeText(mContext,"GPS",Toast.LENGTH_SHORT).show(); if (loc == null) { try { locationManager.requestLocationUpdates( LocationManager.GPS_PROVIDER, MIN_TIME_BW_UPDATES, MIN_disTANCE_CHANGE_FOR_UPDATES, this); Log.d("GPS Enabled", "GPS Enabled"); if (locationManager != null) { loc = locationManager .getLastKNownLocation(LocationManager.GPS_PROVIDER); if (loc != null) { latitude = loc.getLatitude(); longitude = loc.getLongitude(); } } } catch (SecurityException e) { } } } } catch (Exception e) { e.printstacktrace(); } return loc; } public double getLongitude() { if (loc != null) { longitude = loc.getLongitude(); } return longitude; } public double getLatitude() { if (loc != null) { latitude = loc.getLatitude(); } return latitude; } public boolean canGetLocation() { return this.canGetLocation; } public voID showSettingsAlert() { AlertDialog.Builder alertDialog = new AlertDialog.Builder(mContext); alertDialog.setTitle("GPS Not Enabled"); alertDialog.setMessage("Do you wants to turn On GPS"); alertDialog.setPositivebutton("Yes", new DialogInterface.OnClickListener() { public voID onClick(DialogInterface dialog, int which) { Intent intent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS); mContext.startActivity(intent); } }); alertDialog.setNegativebutton("No", new DialogInterface.OnClickListener() { public voID onClick(DialogInterface dialog, int which) { dialog.cancel(); } }); alertDialog.show(); } public voID stopUsingGPS() { if (locationManager != null) { locationManager.removeUpdates(TrackGPS.this); } } @OverrIDe public IBinder onBind(Intent intent) { return null; } @OverrIDe public voID onLocationChanged(Location location) { } @OverrIDe public voID onStatusChanged(String s, int i, Bundle bundle) { } @OverrIDe public voID onProvIDerEnabled(String s) { } @OverrIDe public voID onProvIDerDisabled(String s) { } }************* MainActivity.java **************** import androID.support.v7.app.AppCompatActivity; import androID.os.Bundle; import androID.support.v7.app.AppCompatActivity; import androID.os.Bundle; import androID.vIEw.VIEw; import androID.Widget.button; import androID.Widget.Toast; public class MainActivity extends AppCompatActivity { private button b_get; private TrackGPS gps; double longitude; double latitude; @OverrIDe protected voID onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentVIEw(R.layout.activity_main); b_get = (button)findVIEwByID(R.ID.get); b_get.setonClickListener(new VIEw.OnClickListener() { @OverrIDe public voID onClick(VIEw vIEw) { gps = new TrackGPS(MainActivity.this); if(gps.canGetLocation()){ longitude = gps.getLongitude(); latitude = gps .getLatitude(); Toast.makeText(getApplicationContext(),"Longitude:"+Double.toString(longitude)+"\nLatitude:"+Double.toString(latitude),Toast.LENGTH_SHORT).show(); } else { gps.showSettingsAlert(); } } }); } @OverrIDe protected voID onDestroy() { super.onDestroy(); gps.stopUsingGPS(); } }当我运行该应用程序时,纬度和经度显示为0.0,我正在使用androID棉花糖来测试该应用程序. “ http://clover.studio/2016/08/09/getting-current-location-in-android-using-location-manager/”这是我用来创建应用程序的链接.
解决方法:
请管理所需的棉花糖许可.
首先,您在清单文件中添加此权限
<uses-permission androID:name="androID.permission.ACCESS_COARSE_LOCATION" /> <uses-permission androID:name="androID.permission.ACCESS_FINE_LOCATION" />在您的活动之后首先这样声明两个变量,
private static final int REQUEST_CODE_PERMISSION = 1; String mPermission = Manifest.permission.ACCESS_FINE_LOCATION;在onCreate方法之后
if(Build.VERSION.SDK_INT>= 23) { if (checkSelfPermission(mPermission) != PackageManager.PERMISSION_GRANTED) { ActivityCompat.requestPermissions(MainActivity.this, new String[]{mPermission, }, REQUEST_CODE_PERMISSION); return; } else { *here manage your code if permission already access } }以上是内存溢出为你收集整理的经度和纬度在Android中显示为0全部内容，希望文章能够帮你解决经度和纬度在Android中显示为0所遇到的程序开发问题。
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