我通过crashlytics从用户体验中获取了一些报告,给我一个错误
Fatal Exception java.lang.NullPointerException
CameraUpdateFactory is not initialized
这不是正常的崩溃,因为并不是每个用户都发生此崩溃,但是它变得太正常了,我需要解决它。
我读过,如果没有初始化 map ,可能会发生这种情况,我认为我已经讲过
if(googleMap!=null){
googleMap.animateCamera(CameraUpdateFactory.newLatLng(selectedLatLng));
}
还有一个可能的原因可能是Google Play服务不在设备上或设备已过期,我也为此添加了一些验证。
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
int status = GooglePlayServicesUtil.isGooglePlayServicesAvailable(FuelsFragment.this.getActivity());
// Showing status
//CAMERAUPDATE FACTORY CRASH CAN BE A RESULT OF GOOGLE PLAY SERVICES NOT INSTALLED OR OUT OF DATE
//ADDITIONAL VERIFICATION ADDED TO PREVENT FURTHER CRASHES
//https://github.com/imhotep/MapKit/pull/17
if(status == ConnectionResult.SUCCESS)
{
mMapFragment = ReepMapFragment.newInstance();
FragmentTransaction fragmentTransaction = getChildFragmentManager().beginTransaction();
fragmentTransaction.add(R.id.mapContainer, mMapFragment);
fragmentTransaction.commit();
}
else if(status == ConnectionResult.SERVICE_VERSION_UPDATE_REQUIRED){
reep.toastNotify("You need to update Google Play Services in order to view maps");
}
else if (status==ConnectionResult.SERVICE_MISSING){
reep.toastNotify("Google Play service is not enabled on this device.");
}
之后,我不确定下一步该怎么做,因为每个用户都不会发生这种情况。
如果有人对为什么会发生这种情况有任何想法,我们将不胜感激
最佳答案
即使我从MapView获得了非null的GoogleMap对象,也遇到了同样的错误。我通过对MapsInitializer的显式调用来解决了该问题,即使文档中说它不是必需的。
我的应用程序的Fragment通过以下方式设置MapView:
@Override public View
onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState)
{
View view = inflater.inflate(R.layout.map_panel, container, false);
mapView = (MapView) view.findViewById(R.id.map_view);
mapView.onCreate(savedInstanceState);
configureMap(mapView.getMap());
return view;
}
private void
configureMap(GoogleMap map, double lat, double lon)
{
if (map == null)
return; // Google Maps not available
try {
MapsInitializer.initialize(getActivity());
}
catch (GooglePlayServicesNotAvailableException e) {
Log.e(LOG_TAG, "Have GoogleMap but then error", e);
return;
}
map.setMyLocationEnabled(true);
LatLng latLng = new LatLng(lat, lon);
CameraUpdate camera = CameraUpdateFactory.newLatLng(latLng);
map.animateCamera(camera);
}
在将调用添加到MapsInitializer之前,我将从CameraUpdateFactory中获得异常。添加 call 后,CameraUpdateFactory总是成功。