这是代码：
package com.example.alejandro.integradora2;
import android.Manifest;
import android.content.pm.PackageManager;
import android.graphics.Color;
import android.location.Location;
import android.os.Bundle;
import android.support.v4.app.ActivityCompat;
import android.support.v7.app.AppCompatActivity;
import android.widget.TextView;
import android.widget.Toast;
import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.api.GoogleApiClient;
import com.google.android.gms.location.LocationListener;
import com.google.android.gms.location.LocationRequest;
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.BitmapDescriptorFactory;
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.maps.model.Polyline;
import com.google.android.gms.maps.model.PolylineOptions;
public class RutaUtd extends AppCompatActivity implements GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener,
LocationListener,
OnMapReadyCallback {
LocationRequest mLocationRequest;
GoogleApiClient mGoogleApiClient;
TextView info;
LatLng latLng;
GoogleMap mGoogleMap;
Location mLastLocation;
Marker mCurrLocation, bus,finr;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_maps);
SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager()
.findFragmentById(R.id.map);
mapFragment.getMapAsync(this);
}
public void onMapReady(GoogleMap googleMap) {
mGoogleMap = googleMap;
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;
}
mGoogleMap.setMyLocationEnabled(true);
buildGoogleApiClient();
mGoogleApiClient.connect();
// Add a marker in Sydney and move the camera
LatLng inicio = new LatLng(23.989444, -104.617897);
LatLng fin = new LatLng(24.032782, -104.639596);
mGoogleMap.addMarker(new MarkerOptions().position(inicio).title("Inicio Ruta").icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_BLUE)));
mGoogleMap.addMarker(new MarkerOptions().position(fin).title("Fin Ruta"));
bus= mGoogleMap.addMarker(new MarkerOptions().position(new LatLng(23.996506, -104.638496)).title("Ubicacion del Bus").icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_GREEN))
.icon(BitmapDescriptorFactory.fromResource(R.drawable.bus)));
//mMap.animateCamera(CameraUpdateFactory.zoomTo(10));
mGoogleMap.moveCamera(CameraUpdateFactory.newLatLngZoom(new LatLng(24.005651, -104.600266), 12));
PolylineOptions RutaIda = new PolylineOptions()
.add(new LatLng(23.989444, -104.617897),new LatLng(23.996506, -104.638496),new LatLng(23.996741, -104.638694),new LatLng(23.998000, -104.638673),new LatLng(23.998720, -104.639027),
new LatLng(24.000460, -104.640336),new LatLng(24.001126, -104.641189),new LatLng(24.001479, -104.642369),new LatLng(24.002038, -104.643131),new LatLng(24.004086, -104.644274),
new LatLng(24.005674, -104.644124),new LatLng(24.006680, -104.644261),new LatLng(24.021361, -104.645530),new LatLng(24.026858, -104.645884),new LatLng(24.032508, -104.639628),
new LatLng(24.032831, -104.638727),new LatLng(24.032851, -104.636989),new LatLng(24.033086, -104.636957),new LatLng(24.033194, -104.639135),new LatLng(24.032782, -104.639596))
.width(5)
.color(Color.RED);
Polyline polyline = mGoogleMap.addPolyline(RutaIda);
PolylineOptions RutaVuelta = new PolylineOptions()
.add(new LatLng(24.032782, -104.639596),new LatLng(24.027185, -104.645781),new LatLng(24.025901, -104.645888),new LatLng(24.006594, -104.644299),new LatLng(24.004761, -104.644396),
new LatLng(24.003761, -104.644267),new LatLng(24.002016, -104.643237),new LatLng(24.001085, -104.641488),new LatLng(24.000634, -104.640619),new LatLng(23.998919, -104.639366),
new LatLng(23.998203, -104.638894),new LatLng(23.997017, -104.638862),new LatLng(23.996596, -104.639184),new LatLng(23.989328, -104.618017)
)
.width(8)
.color(Color.parseColor("#802E2EFE"));
//.color(Color.BLUE);
Polyline ruta = mGoogleMap.addPolyline(RutaVuelta);
}
@Override
public void onPause() {
super.onPause();
//Unregister for location callbacks:
if (mGoogleApiClient != null) {
LocationServices.FusedLocationApi.removeLocationUpdates(mGoogleApiClient, this);
}
}
protected synchronized void buildGoogleApiClient() {
Toast.makeText(this, "buildGoogleApiClient", Toast.LENGTH_SHORT).show();
mGoogleApiClient = new GoogleApiClient.Builder(this)
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this)
.addApi(LocationServices.API)
.build();
}
@Override
public void onConnected(Bundle bundle) {
Toast.makeText(this, "onConnected", Toast.LENGTH_SHORT).show();
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;
}
mLastLocation = LocationServices.FusedLocationApi.getLastLocation(
mGoogleApiClient);
if (mLastLocation != null) {
//place marker at current position
latLng = new LatLng(mLastLocation.getLatitude(), mLastLocation.getLongitude());
MarkerOptions markerOptions = new MarkerOptions();
markerOptions.position(latLng);
markerOptions.title("Posicion Actual");
markerOptions.icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_MAGENTA));
mCurrLocation = mGoogleMap.addMarker(markerOptions);
}
mLocationRequest = new LocationRequest();
mLocationRequest.setInterval(5000); //5 seconds
mLocationRequest.setFastestInterval(3000); //3 seconds
mLocationRequest.setPriority(LocationRequest.PRIORITY_BALANCED_POWER_ACCURACY);
//mLocationRequest.setSmallestDisplacement(0.1F); //1/10 meter
LocationServices.FusedLocationApi.requestLocationUpdates(mGoogleApiClient, mLocationRequest, this);
}
@Override
public void onConnectionSuspended(int i) {
Toast.makeText(this,"onConnectionSuspended",Toast.LENGTH_SHORT).show();
}
@Override
public void onConnectionFailed(ConnectionResult connectionResult) {
Toast.makeText(this,"onConnectionFailed",Toast.LENGTH_SHORT).show();
}
@Override
public void onLocationChanged(Location location) {
//remove previous current location marker and add new one at current position
if (mCurrLocation != null) {
mCurrLocation.remove();
}
latLng = new LatLng(location.getLatitude(), location.getLongitude());
MarkerOptions markerOptions = new MarkerOptions();
markerOptions.position(latLng);
markerOptions.title("Current Position");
markerOptions.icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_MAGENTA));
mCurrLocation = mGoogleMap.addMarker(markerOptions);
//Toast.makeText(this,"Location Changed",Toast.LENGTH_SHORT).show();
//If you only need one location, unregister the listener
//LocationServices.FusedLocationApi.removeLocationUpdates(mGoogleApiClient, this);
info= (TextView) findViewById(R.id.distancia);
LatLng autobus=bus.getPosition();
// LatLng markerLatLng = marker.getPosition();
Location bus = new Location("");
bus.setLatitude(autobus.latitude);
bus.setLongitude(autobus.longitude);
float distancia=mLastLocation.distanceTo(bus)/1000;
info.setText("El camion se encuentra a "+distancia+" km aproximadamente de tu ubicacion");
}
}