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TangoAgency / material-intro-screen

Inspired by Heinrich Reimer Material Intro and developed with love from scratch
MIT License
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NullPointerExceptionAttempt on checkPermission #146

Open thuan09878 opened 6 years ago

thuan09878 commented 6 years ago

Fatal Exception: java.lang.NullPointerExceptionAttempt to invoke virtual method 'int android.content.Context.checkPermission(java.lang.String, int, int)' on a null object reference

  | android.support.v4.content.ContextCompat.checkSelfPermission (ContextCompat.java:439)   | agency.tango.materialintroscreen.SlideFragment.hasPermissionsToGrant (SlideFragment.java:154)   | agency.tango.materialintroscreen.SlideFragment.hasAnyPermissionsToGrant (SlideFragment.java:95)   | agency.tango.materialintroscreen.listeners.MessageButtonBehaviourOnPageSelected.pageSelected (MessageButtonBehaviourOnPageSelected.java:30)   | agency.tango.materialintroscreen.MaterialIntroActivity$1.run (MaterialIntroActivity.java:113)   | android.os.Handler.handleCallback (Handler.java:739)   | com.android.internal.os.ZygoteInit.main (ZygoteInit.java:1120)

I don't know where in my code cause this problem, this is the message i got from fabric. Can you tell me how to fix this?

Adsama94 commented 5 years ago

I faced this same issue. The fix for this is explained here - https://stackoverflow.com/questions/37322645/nullpointerexception-when-trying-to-check-permissions