Question

我在android studio中创建了一个用于打开Google Map的MapActivity，并且运行正常。但是现在我想在选择一个位置时（通过点击地图）获取位置的坐标，那么我该怎么做呢？

Map.java

package com.example.abc.project1;

import android.support.v4.app.FragmentActivity;
import android.os.Bundle;
import android.view.View;

import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.MapView;
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.MarkerOptions;
import android.widget.GridLayout;
import android.widget.LinearLayout;


public class Map extends FragmentActivity implements OnMapReadyCallback {

    private GoogleMap mMap;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_map);
        // 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);
    }


    /**
     * 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.
     */
    @Override
    public void onMapReady(GoogleMap googleMap) {

        //GPSTracker gps = new GPSTracker(MapsActivity.this);

        mMap = googleMap;

        // Add a marker in Sydney and move the camera
        LatLng sydney = new LatLng(-33.868664, 151.183194);
        mMap.addMarker(new MarkerOptions().position(sydney).title("Sydney"));
        mMap.moveCamera(CameraUpdateFactory.newLatLng(sydney));
        mMap.animateCamera(CameraUpdateFactory.zoomTo(17.0f));

    }
}

Answer 1

在onMapReady内为您设置了一个clickListener GoogleMap对象。

mMap.setOnMapClickListener(this);

然后，您需要在活动中实现GoogleMap.OnMapClickListener接口。您将收到点击位置的点击事件，如下所示：

@Override
public void onMapClick(LatLng latLng) {
    // do what you gotta do
}

如何从Google Map获取位置坐标

1 个答案: