Here android sdk sample code showing blank screen -

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i have downloaded here android sdk 90 day eval. tried run basic map sample application, getting blank in map frame. able see hello world text. seperately have here maps app running on mobile, runs without problem. have internet connection , location settings on. help?

have included app_id/app_code , lisence key(if using premium edition) in maifest file, mentioned here :

https://developer.here.com/mobile-sdks/documentation/android/topics/credentials.html

otherwise try debugging app adding break point in mapfragment.init() method , example using code on following link , try putting break point on line 

 (error == onengineinitlistener.error.none)

to check if there error.

https://developer.here.com/mobile-sdks/documentation/android/topics/app-simple.html


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