融合位置提供程序api有一个很大的问题,我所有的方法(例如在onConnected我得到的最后一个位置)都在工作,除了OnLocation更改我真的不知道是什么问题,因为我在MapView的其他片段中使用相同的代码,它没有任何问题。 这是我的代码:
public class MissionsFragment extends Fragment implements
SwipeRefreshLayout.OnRefreshListener,
GoogleApiClient.ConnectionCallbacks,
GoogleApiClient.OnConnectionFailedListener,
LocationListener{
LocationRequest mLocationRequest;
GoogleApiClient mGoogleApiClient;
LatLng latLng;
View view;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
view = inflater.inflate(R.layout.fragment_jobs, container, false);
ButterKnife.bind(this, view);
return view;
}
@Override
public void onActivityCreated(@Nullable Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
buildGoogleApiClient();
mGoogleApiClient.connect();
}
@Override
public void onConnected(@Nullable Bundle bundle) {
Location mLastLocation = LocationServices.FusedLocationApi.getLastLocation(mGoogleApiClient);
if (mLastLocation != null) {
latLng = new LatLng(mLastLocation.getLatitude(), mLastLocation.getLongitude());
Toast.makeText(getActivity(), latLng.toString(), Toast.LENGTH_SHORT).show();
}
mLocationRequest = new LocationRequest();
mLocationRequest.setInterval(2000);
mLocationRequest.setFastestInterval(1000);
mLocationRequest.setPriority(LocationRequest.PRIORITY_BALANCED_POWER_ACCURACY);
//mLocationRequest.setSmallestDisplacement(0.1F); //1/10 meter
LocationServices.FusedLocationApi.requestLocationUpdates(mGoogleApiClient, mLocationRequest, this);
}
@Override
public void onConnectionSuspended(int i) {
}
@Override
public void onLocationChanged(Location location) {
latLng = new LatLng(location.getLatitude(), location.getLongitude());
Toast.makeText(getActivity(), latLng.toString(), Toast.LENGTH_SHORT).show();
}
@Override
public void onConnectionFailed(@NonNull ConnectionResult connectionResult) {
}
protected synchronized void buildGoogleApiClient() {
mGoogleApiClient = new GoogleApiClient.Builder(getActivity())
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this)
.addApi(LocationServices.API)
.build();
}
@Override
public void onPause() {
super.onPause();
if (mGoogleApiClient != null) {
LocationServices.FusedLocationApi.removeLocationUpdates(mGoogleApiClient, this);
}
}
}
如果我们只使用MapView,或者我应该在当前代码中更新soemthing,是否需要获取位置?