google maps - Is API Key Required for Direction Apis Android -

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i using below code directions particular lat & lng using google api. have not used api key. app making pushed playstore. want make sure doing here correct or cause problem me ?

thanks in advance :)

if (pc.getlatitude() != null && pc.getlongitude() != null) {        double latitude = double.parsedouble(pc.getlatitude());       double longitude = double.parsedouble(pc.getlongitude());        string uri = string.format(locale.english, "http://maps.google.com/maps?daddr=%f,%f (%s)", latitude, longitude, "location");       intent intent = new intent(intent.action_view, uri.parse(uri));                     intent.setclassname("com.google.android.apps.maps", "com.google.android.maps.mapsactivity");       if (intent.resolveactivity(mcontext.getpackagemanager()) != null) {            toast.maketext(mcontext, r.string.toast_opening_google_maps, toast.length_short).show();            mcontext.startactivity(intent);       } else {              toast.maketext(mcontext, r.string.toast_no_google_maps_warning, toast.length_short).show();         } } else {      toast.maketext(mcontext, r.string.toast_no_ll_warning, toast.length_long).show();   }

this 1 more example of api usage

 string distanceurl = "http://maps.googleapis.com/maps/api/distancematrix/json?" +                 "origins=" + moriginlatlng.latitude + "," + moriginlatlng.longitude +                 "&destinations=" + destination.latitude + "," + destination.longitude +                 "&mode=driving&language=en-en&sensor=false";

according the documentation, don't need api key launch google maps using intent.

according the documentation, need api key use distance matrix api.


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