我通过崩溃解决方案从用户体验中获得了一些回复报告
Fatal Exception java.lang.NullPointerException
CameraUpdateFactory is not initialized
这不是常规崩溃,因为它不是每个用户都会发生,但它变得过于规则,我需要解决它。
我已经读过,如果地图尚未初始化,我认为我已经覆盖了
,这可能会发生if(googleMap!=null){
googleMap.animateCamera(CameraUpdateFactory.newLatLng(selectedLatLng));
}
也可能是因为谷歌播放服务不在设备上或已过时,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//CAMERAUPDATE FACTORY CRASH CAN BE A RESULT OF GOOGLE PLAY SERVICES NOT INSTALLED OR OUT OF DATE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,我不确定接下来要做什么,因为每个用户都没有这样做。
如果有人对此为何发生任何疑问,我将非常感谢您的意见
答案 0 :(得分:22)
即使我从MapView获取了非null的GoogleMap对象,我也遇到了同样的错误。我通过显式调用MapsInitializer解决了这个问题,即使文档说它不需要。
我的应用片段通过以下方式设置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);
}
在我添加对MapsInitializer的调用之前,我会从CameraUpdateFactory中获得异常。添加调用后,CameraUpdateFactory总是成功。
答案 1 :(得分:11)
只需使用MapsInitializer.initialize而不使用try-catch,因为它不会在最新版本的Google Play服务中抛出GooglePlayServicesNotAvailableException,该服务已通过软件包版本5084032进行验证。
答案 2 :(得分:1)
有些时候可能是由旧版Google Play服务引起的,请更新Google Play服务,它可能会对您有所帮助
答案 3 :(得分:0)
你应该做Class.forName()
吗? CameraUpdateFactory
?在try - catch
答案 4 :(得分:0)
来自MapUtil
的处理此案例的内容:
public static void animateCamera(final MapView mapView, final GoogleMap map, final LatLng location) {
try{
CameraUpdate cameraUpdate = CameraUpdateFactory.newLatLngZoom(location, getBetterZoom(map));
map.animateCamera(cameraUpdate);
}catch(Exception e) {
MapsInitializer.initialize(mapView.getContext());
if (mapView.getViewTreeObserver().isAlive()) {
mapView.getViewTreeObserver().addOnGlobalLayoutListener(new OnGlobalLayoutListener() {
@SuppressLint("NewApi")
@Override
public void onGlobalLayout() {
GlobalyLayoutListenerUtil.removeGlobalLayoutListener(mapView, this);
animateCamera(mapView, mapView.getMap(), location);
}
});
} else {
if(map != null){
map.setOnMapLoadedCallback(new GoogleMap.OnMapLoadedCallback() {
@Override
public void onMapLoaded() {
if(location != null){
animateCamera(mapView, mapView.getMap(), location);
}
}
});
}
}
}
}