androidx RecyclerView

[HananMohamedMaiyas]

import android.support.annotation.Nullable;
import android.support.v7.widget.LinearSnapHelper;
import android.support.v7.widget.RecyclerView;

Expected Behavior /

scroll throw days

Actual Behavior

application crash when i scroll to left or right
i'm using androidx
it shows in run
java.lang.NullPointerException: Attempt to invoke virtual method 'void devs.mulham.horizontalcalendar.utils.HorizontalCalendarListener.onDateSelected(java.util.Calendar, int)' on a null object reference
at devs.mulham.horizontalcalendar.utils.HorizontalSnapHelper.notifyCalendarListener(HorizontalSnapHelper.java:46)
at devs.mulham.horizontalcalendar.utils.HorizontalSnapHelper.findSnapView(HorizontalSnapHelper.java:37)
at androidx.recyclerview.widget.SnapHelper.snapToTargetExistingView(SnapHelper.java:189)
at androidx.recyclerview.widget.SnapHelper$1.onScrollStateChanged(SnapHelper.java:51)
at androidx.recyclerview.widget.RecyclerView.dispatchOnScrollStateChanged(RecyclerView.java:5210)
at androidx.recyclerview.widget.RecyclerView.setScrollState(RecyclerView.java:1550)
at androidx.recyclerview.widget.RecyclerView$ViewFlinger.run(RecyclerView.java:5397)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:871)
at android.view.Choreographer.doCallbacks(Choreographer.java:683)
at android.view.Choreographer.doFrame(Choreographer.java:616)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:857)
at android.os.Handler.handleCallback(Handler.java:751)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6313)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:872)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:762)

Specifications

• Android Version:
• Horizontal-Calendar Version:

[CollinsGichuki]

@HananMohamedMaiyas did you find a fix for this?

[aruns2896]

Use onDateSelected method to resolve like below
horizontalCalendar.setCalendarListener(new HorizontalCalendarListener() { @Override public void onDateSelected(Calendar date, int position) { } });