android - Android，如何将经纬度路线信息传递给谷歌地图应用

Question

我有一个 Android 应用程序，它在地图上显示了许多位置。当我点击一个位置时，我想将位置的纬度和设备位置的经度传递给谷歌地图应用程序，以便它可以向我显示两者之间的路线信息。

这可能吗？如果有怎么办？谢谢。

Answer 1

是的，您可以将 lat 和 lng 传递给 Maps ，并使用 Android Intent 显示前往该地点的路线。

方向总是从用户当前位置给出。

以下查询将帮助您执行该操作。您可以在此处传递目的地纬度和经度：

google.navigation:q=latitude,longitude

使用如上：

Uri gmmIntentUri = Uri.parse("google.navigation:q=latitude,longitude");
Intent mapIntent = new Intent(Intent.ACTION_VIEW, gmmIntentUri);
mapIntent.setPackage("com.google.android.apps.maps");
startActivity(mapIntent);

更多信息：https ://developers.google.com/maps/documentation/urls/android-intents

Answer 2

截至 2017 年，谷歌推荐的方法是谷歌地图 URL：

https://developers.google.com/maps/documentation/urls/guide#directions-action

您可以按照文档为 Google 路线创建跨平台通用 URL，并在您的意图中使用该 URL。例如，URL 可能类似于

https://www.google.com/maps/dir/?api=1&destination=60.626200,16.776800&travelmode=driving

googleMap.setOnMapClickListener(new GoogleMap.OnMapClickListener()
{
    @Override
    public void onMapClick(LatLng latLng)
    {   
        String url = "https://www.google.com/maps/dir/?api=1&destination=" + latLng.latitude + "," + latLng.longitude + "&travelmode=driving";           
        Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url));
        startActivity(intent);
    }
});

希望这可以帮助！

Answer 3

你可以试试这个：

googleMap.setOnMapClickListener(new GoogleMap.OnMapClickListener()
{
    @Override
    public void onMapClick(LatLng latLng)
    {   
        String url = "http://maps.google.com/maps?daddr=" + latLng.latitude + "," + latLng.longitude;           
        Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url));
        startActivity(intent);
    }
});

Answer 4

添加依赖编译'com.google.android.gms:play-services-maps:11.0.4'

添加清单文件

<permission
        android:name="com.example.com.locationmap.permission.MAPS_RECEIVE"
        android:protectionLevel="signature"/>
<uses-permission android:name="android.permission.INTERNET"/>
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>

    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />

    <uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />     and meta data


 <meta-data
            android:name="com.google.android.maps.v2.API_KEY"
            android:value="AIzaSyCHrUMMMFTLannfAaqQ9RGVaTu301Ee0j8" />

xml的代码

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent" >

    <fragment
        android:id="@+id/map"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        class="com.google.android.gms.maps.SupportMapFragment"/>

</RelativeLayout>

java类的代码

  public class MapActivity extends FragmentActivity implements 
        OnMapReadyCallback,
        GoogleApiClient.ConnectionCallbacks,
        GoogleApiClient.OnConnectionFailedListener {
    private GoogleMap mMap;
    double latitude = 0;
    double longitude = 0;
    double latitude2 = 0;
    double longitude2 = 0;
    LatLng position;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_map);
        latitude = getIntent().getDoubleExtra("lat", 0);
        longitude = getIntent().getDoubleExtra("long", 0);
        // Getting Reference to SupportMapFragment of activity_map.xml
        SupportMapFragment fm = (SupportMapFragment) 
       getSupportFragmentManager().findFragmentById(R.id.map);
        fm.getMapAsync(MapActivity.this);

        }

    @Override
    public void onConnected(Bundle bundle) {
       /* getDirection();*/
        /*getCurrentLocation();*/
    }

    @Override
    public void onConnectionSuspended(int i) {

    }

    @Override
    public void onConnectionFailed(ConnectionResult connectionResult) {

    }

      @Override
    public void onMapReady(GoogleMap googleMap) {
        // Receiving latitude from MainActivity screen
        latitude = getIntent().getDoubleExtra("lat", 0);

        // Receiving longitude from MainActivity screen
        longitude = getIntent().getDoubleExtra("long", 0);


        latitude2 = 73.998;

        // Receiving longitude from MainActivity screen
        longitude2 = 22.4567;

        position = new LatLng(latitude, longitude);

        // Instantiating MarkerOptions class
        MarkerOptions options = new MarkerOptions();

        // Setting position for the MarkerOptions
        options.position(position);

        // Setting title for the MarkerOptions
        options.title("Location");

        // Setting snippet for the MarkerOptions
        // Adding Marker on the Google Map
        try {
            Geocoder geocoder = new Geocoder(this, Locale.getDefault());
            List<Address> addresses = geocoder.getFromLocation(latitude, 
       longitude, 1);
            String cityName = addresses.get(0).getAddressLine(0);
            String stateName = addresses.get(0).getAddressLine(1);
            String countryName = addresses.get(0).getAddressLine(2);
            options.snippet(cityName + "," + stateName);

        } catch (Exception ex) {
            ex.getMessage();
            options.snippet("Latitude:" + latitude + ",Longitude:" + longitude);

        }
        googleMap.addMarker(options);
        googleMap.addMarker(options.position(new LatLng(latitude2, 
        longitude2)));

        // Creating CameraUpdate object for position
        CameraUpdate updatePosition = CameraUpdateFactory.newLatLng(position);

        // Creating CameraUpdate object for zoom
        CameraUpdate updateZoom = CameraUpdateFactory.zoomTo(6);

        // Updating the camera position to the user input latitude and longitude
        googleMap.moveCamera(updatePosition);

        // Applying zoom to the marker position
        googleMap.animateCamera(updateZoom);


        }


    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
      /*
        getMenuInflater().inflate(R.menu.main, menu);
      */
        return true;
    }

    }
     `