MapsActivity.java

package com.example.student.googleapp;

import android.annotation.TargetApi;
import android.content.pm.PackageManager;
import android.graphics.Color;
import android.os.Build;
import android.support.annotation.NonNull;
import android.support.v4.app.ActivityCompat;
import android.support.v4.app.FragmentActivity;
import android.os.Bundle;
import android.support.v4.content.ContextCompat;
import android.widget.Toast;

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.BitmapDescriptorFactory;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.LatLngBounds;
import com.google.android.gms.maps.model.Marker;
import com.google.android.gms.maps.model.MarkerOptions;
import com.google.android.gms.maps.model.PolylineOptions;
import com.google.maps.android.SphericalUtil;
import com.google.maps.android.ui.IconGenerator;

import java.util.List;

public class MapsActivity extends FragmentActivity implements OnMapReadyCallback {

    private GoogleMap mMap;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_maps);
        // Obtain the SupportMapFragment and get notified when the map is ready to be used.
        SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager()
                .findFragmentById(R.id.map);
        mapFragment.getMapAsync(this);
        int checkPermission = ContextCompat.checkSelfPermission(this,
                android.Manifest.permission.ACCESS_FINE_LOCATION);


        if (checkPermission != PackageManager.PERMISSION_GRANTED) {
            ActivityCompat.requestPermissions(this,
                    new String[]{android.Manifest.permission.ACCESS_FINE_LOCATION}, 1);
        }

    }

    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);


        for (int i = 0; i < permissions.length; i++) {
            String permission = permissions[i];
            int grantResult = grantResults[i];


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


    /**
     * Manipulates the map once available.
     * This callback is triggered when the map is ready to be used.
     * This is where we can add markers or lines, add listeners or move the camera. In this case,
     * we just add a marker near Sydney, Australia.
     * If Google Play services is not installed on the device, the user will be prompted to install
     * it inside the SupportMapFragment. This method will only be triggered once the user has
     * installed Google Play services and returned to the app.
     */
    @TargetApi(Build.VERSION_CODES.M)
    @Override
    public void onMapReady(GoogleMap googleMap) {
        mMap = googleMap;
        mMap.setMapType(GoogleMap.MAP_TYPE_NORMAL);
        final LatLng facultate = new LatLng(45.7450284, 21.2275766);
        mMap.moveCamera(CameraUpdateFactory.newLatLng(facultate));
        mMap.animateCamera(CameraUpdateFactory.zoomTo(18));
        mMap.addMarker(new MarkerOptions()
                .position(facultate)
                .title("Facultate"));
        IconGenerator iconGenerator = new IconGenerator(this);
        iconGenerator.setColor(ContextCompat.getColor(this, android.R.color.holo_blue_dark));
        iconGenerator.setTextAppearance(R.style.amu_Bubble_TextAppearance_Dark);
        mMap.addMarker(new MarkerOptions()
                .position(facultate)
                .icon(BitmapDescriptorFactory.fromBitmap(iconGenerator.makeIcon("Facultate"))));

        if (checkSelfPermission(android.Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && checkSelfPermission(android.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;
        }
        mMap.setMyLocationEnabled(true);

        // Add a marker in Sydney and move the camera
        LatLng sydney = new LatLng(-34, 151);
        mMap.addMarker(new MarkerOptions().position(sydney).title("Marker in Sydney"));
        mMap.moveCamera(CameraUpdateFactory.newLatLng(sydney));
        mMap.setOnMarkerClickListener(new GoogleMap.OnMarkerClickListener() {
            @Override
            public boolean onMarkerClick(Marker marker) {
                if (marker.getPosition().equals(facultate)) {
                    Toast.makeText(MapsActivity.this, "Sunt la facultate", Toast.LENGTH_LONG).show();
                } else {
                    //....
                }
                return false;
            }
        });
       // SphericalUtil.computeDistanceBetween(facultate, libertatii);

    }

    public void drawPolyLineOnMap(List<LatLng> list, GoogleMap googleMap) {


        PolylineOptions polyOptions = new PolylineOptions();
        polyOptions.color(Color.GREEN);
        polyOptions.width(8);
        polyOptions.addAll(list);
        googleMap.addPolyline(polyOptions);
        LatLngBounds.Builder builder = new LatLngBounds.Builder();
        for (LatLng latLng : list) {
            builder.include(latLng);
        }
        builder.build();
    }



}