How to check if position if valid in StreetView in Android

Question

I have an app that is randomly generating positions in a GoogleMaps based on a defined boundary. So I first generate a random LatLng and then I verify if this point is insid

Answer 1

@Override
public void onStreetViewPanoramaReady(StreetViewPanorama streetViewPanorama) {
    mPanorama.setOnStreetViewPanoramaChangeListener(new StreetViewPanorama.OnStreetViewPanoramaChangeListener() {
@Override
public void onStreetViewPanoramaChange(StreetViewPanoramaLocation streetViewPanoramaLocation) {
    if (streetViewPanoramaLocation != null && streetViewPanoramaLocation.links != null) {
        // location is present
    } else {
        // location not available
    }
}
 });

EDIT: Google's official answer is here (https://code.google.com/p/gmaps-api-issues/issues/detail?id=7033), which points here: https://code.google.com/p/gmaps-api-issues/issues/detail?id=4823

The official solution involves using the official Google Street View Image API (free, no limit - https://developers.google.com/maps/documentation/streetview/metadata) via HTTPS.

OLD (DEPRECATED) ANSWER:

I've hacked together a workaround for this that is ugly but stays within the API, until Google updates it to allow querying for panoramas the way the iOS SDK does.

This involves creating a StreetViewPanoramaView, but not attaching it to the layout, and setting its position to the current location. And then testing if it has a panorama location following that.

This seems to work, but will be filing a request on the Android Google Maps API V2 (Which is part of the google play services API) tracker to add this, since the iOS SDK has this capability.

// Handle on the panorama view
private StreetViewPanoramaView svpView;

...

// create a StreetViewPanoramaView in your fragment onCreateView or activity onCreate method
// make sure to handle its lifecycle methods with the fragment or activity's as per the documentation - onResume, onPause, onDestroy, onSaveInstanceState, etc.
StreetViewPanoramaOptions options = new StreetViewPanoramaOptions();
svpView = new StreetViewPanoramaView(getActivity(), options);
svpView.onCreate(savedInstanceState);

...

// Snippet for when the map's location changes, query for street view panorama existence
private Handler mHandler = new Handler();
private static final int QUERY_DELAY_MS = 500;

// When the map's location changes, set the panorama position to the map location
svpView.getStreetViewPanorama().setPosition(mapLocationLatLng);

mHandler.postDelayed(new Runnable() {
    @Override
    public void run() {
        if (svpView.getStreetViewPanorama().getLocation() != null) {
            // YOUR DESIRED ACTION HERE -- get the panoramaID, etc..
            // getLocation() -- a StreetViewPanoramaLocation -- will be null if there is no panorama
            // We have to delay this a bit because it may take some time before it loads
            // Note that adding an OnStreetViewPanoramaChangeListener doesn't seem to be reliably called after setPosition is called and there is a panorama -- possibly because it's not been added to the layout?
        }
    }
}, QUERY_DELAY_MS);

EDIT: to use the new Async API call:

svpView.getStreetViewPanoramaAsync(new OnStreetViewPanoramaReadyCallback() {
    @Override
    public void onStreetViewPanoramaReady(final StreetViewPanorama panorama) {
        panorama.setPosition(mapLocationLatLng, DEFAULT_SEARCH_RADIUS);
        mHandler.postDelayed(new Runnable() {
            @Override
            public void run() {
                if (panorama.getLocation() != null) {
                    // your actions here
                }
            }
        }, QUERY_DELAY_MS);