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ksoichiro / Android-ObservableScrollView

Android library to observe scroll events on scrollable views.
http://ksoichiro.github.io/Android-ObservableScrollView/
Apache License 2.0
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Null Pointer exception at ObservableRecyclerView.onScrollChanged(ObservableRecyclerView.java:102) 'int android.view.View.getHeight()' #221

Closed nikhilverma1395 closed 8 years ago

nikhilverma1395 commented 8 years ago

FATAL EXCEPTION: main Process: razor.nikhil, PID: 20454 java.lang.NullPointerException: Attempt to invoke virtual method 'int android.view.View.getHeight()' on a null object reference at com.github.ksoichiro.android.observablescrollview.ObservableRecyclerView.onScrollChanged(ObservableRecyclerView.java:102) at android.support.v7.widget.RecyclerView.dispatchOnScrolled(RecyclerView.java:3797) at android.support.v7.widget.RecyclerView.dispatchLayout(RecyclerView.java:2958) at android.support.v7.widget.RecyclerView.resumeRequestLayout(RecyclerView.java:1599) at android.support.v7.widget.RecyclerView$1.run(RecyclerView.java:277) at android.view.Choreographer$CallbackRecord.run(Choreographer.java:767) at android.view.Choreographer.doCallbacks(Choreographer.java:580) at android.view.Choreographer.doFrame(Choreographer.java:549) at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:753) at android.os.Handler.handleCallback(Handler.java:739) at android.os.Handler.dispatchMessage(Handler.java:95) at android.os.Looper.loop(Looper.java:135) at android.app.ActivityThread.main(ActivityThread.java:5290) at java.lang.reflect.Method.invoke(Native Method) at java.lang.reflect.Method.invoke(Method.java:372) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:904) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:699)

ksoichiro commented 8 years ago

Thank you for your report and sorry for my late reply. It seems you're using v1.5.2, but this bug is fixed in b565522 and released as v1.6.0. Please update the library to v1.6.0. If you still face this issue in v1.6.0, please reopen this issue.