通过onmapclick在Google地图上添加标记

Question

First thing to say: i'm a novice programmer... i'm trying to modifying an open source i've found on github and i have this problem: adding markers don't work when i tap while debugging my app.

@Override
public void onMapClick(LatLng latLng) {
    if (mMarker == null) {
        MarkerOptions markerOptions = new MarkerOptions();
        markerOptions.title(latLng.toString())
                .position(latLng)
                .draggable(true);
        mMarker = mMap.addMarker(markerOptions);
    } else {
        mMarker.setPosition(latLng);
        mMarker.setTitle(latLng.toString());
        mMarker.showInfoWindow();
    }
}

The public class:

public class MainActivity extends AppCompatActivity implements EasyPermissions.PermissionCallbacks, OnMapReadyCallback, GoogleMap.OnMapClickListener {

Beside my if-else code, i tried many of the codes examples i've read here on stackoverflow and on google api docs, but still do nothing when i tap the phone screen.

Sorry for my english...

Answer 1

As @Pavneet_Singh wrote, this did the trick:

Before:

 @Override
public void onMapReady(GoogleMap googleMap) {
    mMap = googleMap;
}

After:

 @Override
public void onMapReady(GoogleMap googleMap) {
    mMap = googleMap;
    mMap.setOnMapClickListener(this);
}