android - Facebook - LoginFragment on a SingleInstance activity -

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i using facebook sdk (4.3.0) loginbutton on fragment, hosted in activity launchmode set singleinstance, facebook login button seem have problem that, when pressed login action gets canceled right away messege :

cannot call loginfragment null calling package. can occur if launchmode of caller singleinstance.

an odd thing note doesnt heppen on devices, on samsung devices sony xperia doesnt suffer that, anyway, when remove single instance launch mode works fine, activity can have multiple instances brings weird user experience app users.

how fix issue?


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