Logcat crash error xml

[osamamohsen]

Process: grand.app.elqasar, PID: 26848
kotlin.TypeCastException: null cannot be cast to non-null type alirezat775.lib.carouselview.CarouselLayoutManager
at alirezat775.lib.carouselview.CarouselView.getManager(CarouselView.kt:77)
at alirezat775.lib.carouselview.CarouselView.getParentAnchor(CarouselView.kt:250)
at alirezat775.lib.carouselview.CarouselView.calculateSnapViewPosition(CarouselView.kt:265)
at alirezat775.lib.carouselview.CarouselView.scrolling(CarouselView.kt:230)
at alirezat775.lib.carouselview.CarouselView$initSnap$1.run(CarouselView.kt:101)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:234)
at android.app.ActivityThread.main(ActivityThread.java:5526)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)

[alirezat775]

Would you please add your implementation?

[bayuwijdev]

I have the same issue. I think this is error from library

kotlin.TypeCastException: null cannot be cast to non-null type alirezat775.lib.carouselview.CarouselLayoutManager
at alirezat775.lib.carouselview.CarouselView.getManager(CarouselView.kt:77)
at alirezat775.lib.carouselview.CarouselView.getParentAnchor(CarouselView.kt:250)
at alirezat775.lib.carouselview.CarouselView.calculateSnapViewPosition(CarouselView.kt:265)
at alirezat775.lib.carouselview.CarouselView.scrolling(CarouselView.kt:230)
at alirezat775.lib.carouselview.CarouselView$initSnap$1.run(CarouselView.kt:101)
at android.os.Handler.handleCallback(Handler.java:938)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:236)
at android.app.ActivityThread.main(ActivityThread.java:8059)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:656)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:967)

this is my xml implementation on fragment

                        <alirezat775.lib.carouselview.CarouselView
                            android:id="@+id/carousel_view"
                            android:layout_width="match_parent"
                            android:layout_height="match_parent"
                            android:scrollIndicators="bottom"
                            />

[bayuwijdev]

you need to set variable manager : CarouselLayoutManager? as nullable

[alirezat775]

Hi @BayuWijayaPermanaPutra, thanks for asking, however, I couldn’t get your problem, may I ask you to add your implementation and explain the scenario that caused this problem?