I keep getting this Fatal Error in my app, caused from a null object reference.
06-06 14:10:43.180 12002-12002/? D/BarreChat: 29.356811:-57.3686681:lat/lng:
(29.356811,-57.3686681):com.google.android.gms.maps.CameraUpdate@a16f2f9
06-06 14:10:43.181 12002-12002/? E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.christopher.barrechat, PID: 12002
java.lang.NullPointerException: Attempt to invoke virtual method 'void com.google.android.gms.maps.GoogleMap.moveCamera(com.google.android.gms.maps.CameraUpdate)' on a null object reference
at com.example.christopher.barrechat.BarreChat$1.onComplete(BarreChat.java:276)
at com.google.android.gms.tasks.zzj.run(Unknown Source:23)
at android.os.Handler.handleCallback(Handler.java:789)
at android.os.Handler.dispatchMessage(Handler.java:98)
at android.os.Looper.loop(Looper.java:180)
at android.app.ActivityThread.main(ActivityThread.java:6950)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:240)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:835)
06-06 14:10:43.182 2867-15345/? E/ActivityManager: App crashed! Process: com.example.christopher.barrechat
This is the code that gives the error message. You can see I added some debug statements to try to find out what's going on. These statements are all in a concatenated string in the first line of the error message I posted. The debug statements all give exactly what I would expect. All of them except the CameraUpdate object which has a reference but no other information alongside it. This is really baffling to me though. CameraUpdateFactory.newLatLngZoom() is passing a null object, but the parameters are exactly what it's looking for. If miniMap (Google Map Object) was not initialized than I would think it wouldn't even recognize CameraUpdateFactory. Any help on this would be greatly appreciated.
private void getDeviceLocation() {
/*
* Get the best and most recent location of the device, which may be null in rare
* cases when a location is not available.
*/
try {
if (mLocationPermissionGranted) {
Task<Location> locationResult = mFusedLocationProviderClient.getLastLocation();
locationResult.addOnCompleteListener(this, new OnCompleteListener<Location>() {
@Override
public void onComplete(@NonNull Task<Location> task) {
if (task.isSuccessful()) {
mLastKnownLocation = task.getResult();
//DEBUG
//Both give correct double
String errormess = Double.toString(mLastKnownLocation.getLatitude());
String errormesstwo = Double.toString(mLastKnownLocation.getLongitude());
//Gives a proper LatLng Object
String errormessthree = String.valueOf(new LatLng(mLastKnownLocation.getLatitude(), mLastKnownLocation.getLongitude()));
//Gives a reference and nothing else... Not working...
CameraUpdate SHYAT = CameraUpdateFactory.newLatLngZoom(new LatLng(mLastKnownLocation.getLatitude(), mLastKnownLocation.getLongitude()), DEFAULT_ZOOM);
String errormessfour = String.valueOf(SHYAT);
Log.d(TAG, errormess + ':' + errormesstwo + ':' + errormessthree + ':' + errormessfour);
miniMap.moveCamera(CameraUpdateFactory.newLatLngZoom(
new LatLng(mLastKnownLocation.getLatitude(),
mLastKnownLocation.getLongitude()), DEFAULT_ZOOM));
} else {
Log.d(TAG, "Current location is null. Using defaults.");
Log.e(TAG, "Exception: %s", task.getException());
miniMap.moveCamera(CameraUpdateFactory.newLatLngZoom(mDefaultLocation, DEFAULT_ZOOM));
miniMap.getUiSettings().setMyLocationButtonEnabled(false);
}
}
});
}
} catch(SecurityException e) {
Log.e("Exception: %s", e.getMessage());
}
}
Fixed, No idea why.
In coding through the tutorial I took out
onMapReady(GoogleMap map) {
miniMap = map;
}
and replaced it with
onMapReady(GoogleMap miniMap) {}
Changing it back to onMapReady(GoogleMap map) {miniMap = map;}
fixed it up. Not sure why.
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