GravitySnapHelper.SnapListener not callback when scroll to first position.

[leeprohacker]

The issue when I set GravitySnapRecyclerView equal center and also set SnapListener for GravitySnapHelper. So the listener never callback "onSnap" when the recyclerview scrolled to top position and rest positions that working fine.

[rubensousa]

The top position won't be called in onSnap if it can't be snapped. This usually happens when you don't have padding or decoration for the top or bottom items.

[leeprohacker]

@rubensousa rube I looked into your example, in the row Center with decoration, it's same issue i mentioned above. In fact my project I have added decoration to make item center horizontal. So do you have any advices for me? Thanks

[rubensousa]

@leeprohacker I can confirm there's a problem. Sometimes the position 0 isn't dispatched on onSnap. I'll fix this in the next release

[rubensousa]

@leeprohacker it should be fixed in the develop branch now. Can you check if now it behaves like you would expect?

[rubensousa]

You can check this in your app by installing the version 2.2.1-beta01

[rubensousa]

Released on 2.2.1

[Hoalq-0026]

@rubensousa Hi! I have a problem. I can not scroll to the top position when the call method smoothScrollToPosition(0) in source code:

ryclerviewTopic.apply {
                layoutManager = LinearLayoutManager(context)
               enableSnapping(false)
                adapter = topicAdapter
            }

ryclerviewTopic.smoothScrollToPosition(0)

 <com.github.rubensousa.gravitysnaphelper.GravitySnapRecyclerView
                        android:id="@+id/ryclerviewTopic"
                        android:layout_width="match_parent"
                        android:layout_height="match_parent"
                        app:layout_constraintEnd_toEndOf="parent"
                        app:layout_constraintStart_toStartOf="parent"
                        app:layout_constraintTop_toTopOf="parent"
                        app:layout_behavior="@string/appbar_scrolling_view_behavior"
                        app:snapEnabled="false"
                        app:snapGravity="top"
                        app:snapMaxFlingSizeFraction="2"
                        app:snapScrollMsPerInch="50"
                        android:paddingTop="@dimen/_30dp"
                        tools:listitem="@layout/item_home_topic" />