我在我的
Android应用中使用谷歌地图.我需要将地图重新定位到客户端的当前位置.我使用了以下声明 –
map.setmylocationenabled(true);
这会在右上方显示一个按钮,但单击该按钮不起作用.
按钮单击侦听器：
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;
}
});
解决方法
只需从
my other answer here获取代码,然后修改按钮单击侦听器以请求其他位置：
mMap.setOnMyLocationButtonClickListener(new GoogleMap.OnMyLocationButtonClickListener() {
@Override
public boolean onMyLocationButtonClick() {
if (mGoogleApiClient != null) {
LocationServices.FusedLocationApi.requestLocationUpdates(mGoogleApiClient,mLocationRequest,this);
}
return false;
}
});
然后onLocationChanged()中的代码将重新定位摄像机位置,然后再次注册位置更新：
@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);
}
}
