android - 如何在 Android 中使用 GPS 获取当前位置(街道、城市等)

Question

我想创建一个应用程序来跟踪安装我的应用程序的用户，因此我有以下用于跟踪的代码，该代码运行良好，但它只会返回城市名称。但我需要完整的详细信息，例如街道名称、城市，等等。

    public class GetCurrentLocation extends Activity
        implements OnClickListener {

    private LocationManager locationMangaer = null;
    private LocationListener locationListener = null;

    private Button btnGetLocation = null;
    private EditText editLocation = null;
    private ProgressBar pb = null;

    private static final String TAG = "Debug";
    private Boolean flag = false;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);


        //if you want to lock screen for always Portrait mode
        setRequestedOrientation(ActivityInfo
                .SCREEN_ORIENTATION_PORTRAIT);

        pb = (ProgressBar) findViewById(R.id.progressBar1);
        pb.setVisibility(View.INVISIBLE);

        editLocation = (EditText) findViewById(R.id.editTextLocation);

        btnGetLocation = (Button) findViewById(R.id.btnLocation);
        btnGetLocation.setOnClickListener(this);

        locationMangaer = (LocationManager)
                getSystemService(Context.LOCATION_SERVICE);

    }

    @Override
    public void onClick(View v) {
        flag = displayGpsStatus();
        if (flag) {

            Log.v(TAG, "onClick");

            editLocation.setText("Please!! move your device to" +
                    " see the changes in coordinates." + "\nWait..");

            pb.setVisibility(View.VISIBLE);
            locationListener = new MyLocationListener();

            if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
                // TODO: Consider calling
                //    ActivityCompat#requestPermissions
                // here to request the missing permissions, and then overriding
                //   public void onRequestPermissionsResult(int requestCode, String[] permissions,
                //                                          int[] grantResults)
                // to handle the case where the user grants the permission. See the documentation
                // for ActivityCompat#requestPermissions for more details.
                return;
            }
            locationMangaer.requestLocationUpdates(LocationManager.GPS_PROVIDER, 5000, 10, locationListener);

        } else {
            alertbox("Gps Status!!", "Your GPS is: OFF");
        }

    }

    /*----Method to Check GPS is enable or disable ----- */
    private Boolean displayGpsStatus() {
        ContentResolver contentResolver = getBaseContext()
                .getContentResolver();
        boolean gpsStatus = Settings.Secure
                .isLocationProviderEnabled(contentResolver,
                        LocationManager.GPS_PROVIDER);
        if (gpsStatus) {
            return true;

        } else {
            return false;
        }
    }

    /*----------Method to create an AlertBox ------------- */
    protected void alertbox(String title, String mymessage) {
        AlertDialog.Builder builder = new AlertDialog.Builder(this);
        builder.setMessage("Your Device's GPS is Disable")
                .setCancelable(false)
                .setTitle("** Gps Status **")
                .setPositiveButton("Gps On",
                        new DialogInterface.OnClickListener() {
                            public void onClick(DialogInterface dialog, int id) {
                                // finish the current activity
                                // AlertBoxAdvance.this.finish();
                                Intent myIntent = new Intent(
                                        Settings.ACTION_SECURITY_SETTINGS);
                                startActivity(myIntent);
                                dialog.cancel();
                            }
                        })
                .setNegativeButton("Cancel",
                        new DialogInterface.OnClickListener() {
                            public void onClick(DialogInterface dialog, int id) {
                                // cancel the dialog box
                                dialog.cancel();
                            }
                        });
        AlertDialog alert = builder.create();
        alert.show();
    }

    /*----------Listener class to get coordinates ------------- */
    private class MyLocationListener implements LocationListener {
        @Override
        public void onLocationChanged(Location loc) {

            editLocation.setText("");
            pb.setVisibility(View.INVISIBLE);
            Toast.makeText(getBaseContext(),"Location changed : Lat: " +
                            loc.getLatitude()+ " Lng: " + loc.getLongitude(),
                    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 Currrent City is: "+cityName;
            editLocation.setText(s);
        }

        @Override
        public void onProviderDisabled(String provider) {
            // TODO Auto-generated method stub
        }

        @Override
        public void onProviderEnabled(String provider) {
            // TODO Auto-generated method stub
        }

        @Override
        public void onStatusChanged(String provider,
                                    int status, Bundle extras) {
            // TODO Auto-generated method stub
        }
    }
}

Answer 1

试试这个:

public void setCurrentLocation() {
        if (UtilityMethods.isGPSEnabled(mContext)) {
            if (Build.VERSION.SDK_INT >= 23 &&
                    ContextCompat.checkSelfPermission(mContext, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED &&
                    ContextCompat.checkSelfPermission(mContext, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {

                requestPermissions(LOCATION_PERMS, LOCATION_REQUEST);
                // return;
            } else {
                getCurrentAddress();
            }

        } else {
            alertbox("Gps Status", "Your Device's GPS is Disable", mContext);
        }
    }

使用位置管理器

    public void getCurrentAddress() {
        // Get the location manager
        locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);

        if (locationManager != null) {

            try {

                if (Build.VERSION.SDK_INT >= 23 && checkSelfPermission(Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && checkSelfPermission(Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
                    // TODO: Consider calling
                    //    public void requestPermissions(@NonNull String[] permissions, int requestCode)
                    // here to request the missing permissions, and then overriding
                    //   public void onRequestPermissionsResult(int requestCode, String[] permissions,
                    //                                          int[] grantResults)
                    // to handle the case where the user grants the permission. See the documentation
                    // for Activity#requestPermissions for more details.
                    return;
                }
                locationManager.requestLocationUpdates(
                        LocationManager.NETWORK_PROVIDER,
                        MIN_TIME_BW_UPDATES,
                        MIN_DISTANCE_CHANGE_FOR_UPDATES, this);
            } catch (Exception ex) {
                Log.i("msg", "fail to request location update, ignore", ex);
            }
            if (locationManager != null) {
                location = locationManager
                        .getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
            }
            Geocoder gcd = new Geocoder(getBaseContext(),
                    Locale.getDefault());
            List<Address> addresses;
            try {
                addresses = gcd.getFromLocation(location.getLatitude(),
                        location.getLongitude(), 1);
                if (addresses.size() > 0) {
                    String address = addresses.get(0).getAddressLine(0); // If any additional address line present than only, check with max available address lines by getMaxAddressLineIndex()
                    String locality = addresses.get(0).getLocality();
                    String subLocality = addresses.get(0).getSubLocality();
                    String state = addresses.get(0).getAdminArea();
                    String country = addresses.get(0).getCountryName();
                    String postalCode = addresses.get(0).getPostalCode();
                    String knownName = addresses.get(0).getFeatureName();
                    if (subLocality != null) {

                        currentLocation = locality + "," + subLocality;
                    } else {

                        currentLocation = locality;
                    }
                    current_locality = locality;
                }

            } catch (Exception e) {
                e.printStackTrace();
                Toast.makeText(HomeActivity.this, Constants.ToastConstatnts.ERROR_FETCHING_LOCATION, Toast.LENGTH_SHORT).show();
            }
        }
    }