big-bug：BackdropPagerAdapter - NullPointerException

[geogie]

FATAL EXCEPTION: main Process: com.android.msahakyan.nestedrecycler, PID: 18967 java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.Object android.content.Context.getSystemService(java.lang.String)' on a null object reference at com.android.msahakyan.nestedrecycler.adapter.BackdropPagerAdapter.(BackdropPagerAdapter.java:27) at com.android.msahakyan.nestedrecycler.fragment.MovieDetailFragment$1.onSuccess(MovieDetailFragment.java:168) at com.android.msahakyan.nestedrecycler.net.NetworkUtilsImpl$1.onResponse(NetworkUtilsImpl.java:40) at com.android.msahakyan.nestedrecycler.net.NetworkUtilsImpl$1.onResponse(NetworkUtilsImpl.java:37) at com.android.volley.toolbox.JsonRequest.deliverResponse(JsonRequest.java:65) at com.android.volley.ExecutorDelivery$ResponseDeliveryRunnable.run(ExecutorDelivery.java:99) at android.os.Handler.handleCallback(Handler.java:739) at android.os.Handler.dispatchMessage(Handler.java:95) at android.os.Looper.loop(Looper.java:145) at android.app.ActivityThread.main(ActivityThread.java:5835) at java.lang.reflect.Method.invoke(Native Method) at java.lang.reflect.Method.invoke(Method.java:372) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1399) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1194)