Сохранение маркеров в Back4App / Firebase и поиск маркеров - PullRequest
0 голосов
/ 07 марта 2019

Здравствуйте, я работаю над приложением, которое пытается найти парковочные места для инвалидов.Я настроил его сейчас, чтобы peole мог войти в систему и зарегистрироваться, и появилась карта.У меня есть панель поиска, но сейчас она ищет только обычные места.Я пытаюсь сохранить маркеры для одной из сервисов в заголовке и искать их оттуда, что это возможно.Я действительно сосу с упорством.Вот код для моей MapsActivity.

package com.example.demo2;

import android.Manifest;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.pm.PackageManager;
import android.location.Address;
import android.location.Geocoder;
import android.location.Location;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v4.app.ActivityCompat;
import android.support.v4.app.FragmentActivity;
import android.os.Bundle;
import android.support.v4.content.ContextCompat;
import android.util.Log;
import android.view.KeyEvent;
import android.view.View;
import android.view.WindowManager;
import android.view.inputmethod.EditorInfo;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageButton;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;

import com.google.android.gms.location.FusedLocationProviderClient;
import com.google.android.gms.location.LocationServices;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.OnMapReadyCallback;
import com.google.android.gms.maps.SupportMapFragment;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.Marker;
import com.google.android.gms.maps.model.MarkerOptions;
import com.google.android.gms.tasks.OnCompleteListener;
import com.google.android.gms.tasks.Task;
import com.google.maps.android.clustering.ClusterManager;
import com.parse.ParseGeoPoint;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

public class MapsActivity extends FragmentActivity implements OnMapReadyCallback {

    @Override
    public void onMapReady(GoogleMap googleMap) {
        Toast.makeText(this, "Map is Ready", Toast.LENGTH_SHORT).show();
        Log.d(TAG, "onMapReady: map is ready");
        mMap = googleMap;

        mMap.setOnMapLongClickListener(new GoogleMap.OnMapLongClickListener() {
            @Override
            public void onMapLongClick(LatLng latLng) {
                mMap.addMarker(new MarkerOptions()
                        .position(latLng)
                        .title("Handicap Spot")
                        .snippet("Your marker snippet"));
            }
        });
        if (mLocationPermissionsGranted) {
            getDeviceLocation();

            if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION)
                    != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this,
                    Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
                return;
            }
            mMap.setMyLocationEnabled(true);
            mMap.getUiSettings().setMyLocationButtonEnabled(false);
        }
    }

    private static final String TAG = "MapActivity";

    private static final String FINE_LOCATION = Manifest.permission.ACCESS_FINE_LOCATION;
    private static final String COURSE_LOCATION = Manifest.permission.ACCESS_COARSE_LOCATION;
    private static final int LOCATION_PERMISSION_REQUEST_CODE = 1234;
    private static final float DEFAULT_ZOOM = 15f;

    //widgets
    private EditText mSearchText;
    private ImageView mGps;

    //vars
    private Boolean mLocationPermissionsGranted = false;
    private GoogleMap mMap;
    private FusedLocationProviderClient mFusedLocationProviderClient;
    private ImageButton button1;
    public List<Marker> markers = new ArrayList<>();

    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_maps);
        mSearchText = (EditText) findViewById(R.id.search);
        mGps = (ImageView) findViewById(R.id.ic_gps);

        mGps.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Log.d(TAG, "clicked GPS icon: ");
                getDeviceLocation();
            }
        });



        button1 = (ImageButton) findViewById(R.id.button1);
        button1.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View v) {
                hideSoftKeyboard();
                String g = mSearchText.getText().toString();

                Geocoder geocoder = new Geocoder(getBaseContext());
                List<Address> addresses = null;

                try {
                    // Getting a maximum of 3 Address that matches the input
                    // text
                    addresses = geocoder.getFromLocationName(g, 3);
                    if (addresses != null && !addresses.equals(""))
                        search(addresses);


                } catch (Exception e) {

                }

            }
        });

        getLocationPermission();

    }

    protected void search(List<Address> addresses) {

        Address address = (Address) addresses.get(0);
        double home_long = address.getLongitude();
        double home_lat = address.getLatitude();
        LatLng latLng = new LatLng(address.getLatitude(), address.getLongitude());

        String addressText = String.format(
                "%s, %s",
                address.getMaxAddressLineIndex() > 0 ? address
                        .getAddressLine(0) : "", address.getCountryName());

        MarkerOptions markerOptions = new MarkerOptions();

        markerOptions.position(latLng);
        markerOptions.title(addressText);

        Marker marker = mMap.addMarker(new MarkerOptions().position(latLng).visible(false));
        markers.add(marker);

        mMap.clear();
        mMap.addMarker(markerOptions
            .title(address.getAddressLine(0)));
        Log.d(TAG,"gelocate: " + address.toString());
        mMap.moveCamera(CameraUpdateFactory.newLatLng(latLng));
        mMap.animateCamera(CameraUpdateFactory.zoomTo(15));
        mSearchText.setText("Latitude:" + address.getLatitude() + ", Longitude:"
                + address.getLongitude());


    }

    private void hideSoftKeyboard()
    {
        this.getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_HIDDEN);
    }

    @Override
    public void onBackPressed() {
        super.onBackPressed();
        Intent intent = new Intent(MapsActivity.this,MainActivity.class);
        startActivity(intent);
        Toast.makeText(MapsActivity.this, "Logged out", Toast.LENGTH_SHORT).show();
        finish();
    }

    private void getDeviceLocation(){
        Log.d(TAG, "getDeviceLocation: getting the devices current location");

        mFusedLocationProviderClient = LocationServices.getFusedLocationProviderClient(this);

        try{
            if(mLocationPermissionsGranted){

                final Task location = mFusedLocationProviderClient.getLastLocation();
                location.addOnCompleteListener(new OnCompleteListener() {
                    @Override
                    public void onComplete(@NonNull Task task) {
                        if(task.isSuccessful()){
                            Log.d(TAG, "onComplete: found location!");
                            Location currentLocation = (Location) task.getResult();

                            moveCamera(new LatLng(currentLocation.getLatitude(), currentLocation.getLongitude()),
                                    DEFAULT_ZOOM);

                        }else{
                            Log.d(TAG, "onComplete: current location is null");
                            Toast.makeText(MapsActivity.this, "unable to get current location", Toast.LENGTH_SHORT).show();
                        }
                    }
                });
            }
        }catch (SecurityException e){
            Log.e(TAG, "getDeviceLocation: SecurityException: " + e.getMessage() );
        }
    }

    private void moveCamera(LatLng latLng, float zoom){
        Log.d(TAG, "moveCamera: moving the camera to: lat: " + latLng.latitude + ", lng: " + latLng.longitude );
        mMap.moveCamera(CameraUpdateFactory.newLatLngZoom(latLng, zoom));
        hideSoftKeyboard();
    }

    private void initMap(){
        Log.d(TAG, "initMap: initializing map");
        SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map);

        mapFragment.getMapAsync(MapsActivity.this);
    }

    private void getLocationPermission(){
        Log.d(TAG, "getLocationPermission: getting location permissions");
        String[] permissions = {Manifest.permission.ACCESS_FINE_LOCATION,
                Manifest.permission.ACCESS_COARSE_LOCATION};

        if(ContextCompat.checkSelfPermission(this.getApplicationContext(),
                FINE_LOCATION) == PackageManager.PERMISSION_GRANTED){
            if(ContextCompat.checkSelfPermission(this.getApplicationContext(),
                    COURSE_LOCATION) == PackageManager.PERMISSION_GRANTED){
                mLocationPermissionsGranted = true;
                initMap();
            }else{
                ActivityCompat.requestPermissions(this,
                        permissions,
                        LOCATION_PERMISSION_REQUEST_CODE);
            }
        }else{
            ActivityCompat.requestPermissions(this,
                    permissions,
                    LOCATION_PERMISSION_REQUEST_CODE);
        }
    }

    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        Log.d(TAG, "onRequestPermissionsResult: called.");
        mLocationPermissionsGranted = false;

        switch(requestCode){
            case LOCATION_PERMISSION_REQUEST_CODE:{
                if(grantResults.length > 0){
                    for(int i = 0; i < grantResults.length; i++){
                        if(grantResults[i] != PackageManager.PERMISSION_GRANTED){
                            mLocationPermissionsGranted = false;
                            Log.d(TAG, "onRequestPermissionsResult: permission failed");
                            return;
                        }
                    }
                    Log.d(TAG, "onRequestPermissionsResult: permission granted");
                    mLocationPermissionsGranted = true;
                    //initialize our map
                    initMap();
                }
            }
        }
    }
}
Добро пожаловать на сайт PullRequest, где вы можете задавать вопросы и получать ответы от других членов сообщества.
...