map.setmylocationenabled（true）不起作用 [英] map.setmylocationenabled(true) not working

问题描述

我在Android应用中使用Google地图。我需要将地图重新​​映射到客户端的当前位置。我使用了以下语句：

  map.setmylocationenabled（true）; 
  

显示右上角的按钮，但点击不起作用。

按钮点击侦听器：

  mMap.setOnMyLocationButtonClickListener（new GoogleMap.OnMyLocationButtonClickListener（）{ 
 @Override 
 public boolean onMyLocationButtonClick（）{
 mMap.addMarker（new MarkerOptions（）。position（myLatLng）.title（My Location））; 
 mMap.animateCamera （CameraUpdateFactory.newLatLngZoom（myLatLng，zoomLevel））; 
 return false; 
} 
}）; 
  

解决方案

只需从我的其他答案在这里，并修改您的按钮点击侦听器以请求另一个位置：

<$ p $ （
$ b $ on $ MyBocationButtonClick（）{
if（mGoogleApiClient！= null）{$ b $（
$ b $ Override
public boolean onMyLocationButtonClick（）{
$ mb.setOnMyLocationButtonClickListener（new GoogleMap.OnMyLocationButtonClickListener b LocationServices.FusedLocationApi.requestLocationUpdates（mGoogleApiClient，mLocationRequest，this）;
}
return false;
}
}）;

onLocationChanged（）中的代码将重新居中摄像头位置，然后取消注册位置更新：

  @Override 
 public void onLocationChanged（位置位置）
 {
 mLastLocation = location; 
 if（mCurrLocationMarker！= null）{
 mCurrLocationMarker.remove（）; 
} 
 
 //放置当前位置标记
 LatLng latLng = new LatLng（location.getLatitude（），location.getLongitude（））; 
 MarkerOptions markerOptions = new MarkerOptions（）; 
 markerOptions.position（latLng）; 
 markerOptions.title（当前位置）; 
 markerOptions.icon（BitmapDescriptorFactory.defaultMarker（BitmapDescriptorFactory.HUE_MAGENTA））; 
 mCurrLocationMarker = mGoogleMap.addMarker（markerOptions）; 
 
 //移动地图相机
 mGoogleMap.moveCamera（CameraUpdateFactory.newLatLng（latLng））; 
 mGoogleMap.animateCamera（CameraUpdateFactory.zoomTo（11））; 
 
 if（mGoogleApiClient！= null）{
 LocationServices.FusedLocationApi.removeLocationUpdates（mGoogleApiClient，this）; 
} 
} 
  

I'm working with Google Maps in my android app. I need to recenter the map to the client's current location. I used the following statement -

map.setmylocationenabled(true);

This displays a button on the top right but clicking that doesn't work.

The button click listener:

mMap.setOnMyLocationButtonClickListener(new GoogleMap.OnMyLocationButtonClickListener() {
                @Override
                public boolean onMyLocationButtonClick() {
                    mMap.addMarker(new MarkerOptions().position(myLatLng).title("My Location"));
                    mMap.animateCamera(CameraUpdateFactory.newLatLngZoom(myLatLng, zoomLevel));
                    return false;
                }
            });

解决方案

Just take the code from my other answer here, and modify your button click listener to request another location:

         mMap.setOnMyLocationButtonClickListener(new GoogleMap.OnMyLocationButtonClickListener() {
                @Override
                public boolean onMyLocationButtonClick() {
                     if (mGoogleApiClient != null) {
                         LocationServices.FusedLocationApi.requestLocationUpdates(mGoogleApiClient, mLocationRequest, this);
                     }
                     return false;
                }
            });

The code in onLocationChanged() will then re-center the camera position, and then un-register for location updates again:

@Override
public void onLocationChanged(Location location)
{
    mLastLocation = location;
    if (mCurrLocationMarker != null) {
        mCurrLocationMarker.remove();
    }

    //Place current location marker
    LatLng 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));
    mCurrLocationMarker = mGoogleMap.addMarker(markerOptions);

    //move map camera
    mGoogleMap.moveCamera(CameraUpdateFactory.newLatLng(latLng));
    mGoogleMap.animateCamera(CameraUpdateFactory.zoomTo(11));

    if (mGoogleApiClient != null) {
        LocationServices.FusedLocationApi.removeLocationUpdates(mGoogleApiClient, this);
    }
}

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