Timeline View in RecyclerView

Timeline View can be easily integrated with RecyclerView by following these steps:

Adapter

The adapter needs to override getItemViewType to provide the correct timeline type:

class TimelineAdapter(
    private val items: List<TimelineItem>
) : RecyclerView.Adapter<TimelineViewHolder>() {

    override fun getItemViewType(position: Int): Int {
        return TimelineView.getTimeLineViewType(position, itemCount)
    }

    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): TimelineViewHolder {
        val view = LayoutInflater.from(parent.context)
            .inflate(R.layout.item_timeline, parent, false)
        return TimelineViewHolder(view, viewType)
    }

    override fun onBindViewHolder(holder: TimelineViewHolder, position: Int) {
        holder.bind(items[position])
    }

    override fun getItemCount() = items.size
}

Important

Make sure to pass the viewType from onCreateViewHolder to the ViewHolder constructor. This is crucial for proper timeline initialization.

ViewHolder

The ViewHolder needs to initialize the timeline with the correct view type:

class TimelineViewHolder(
    itemView: View, 
    viewType: Int // Required for timeline initialization
) : RecyclerView.ViewHolder(itemView) {

    private val timelineView: TimelineView = itemView.findViewById<TimelineView>(R.id.timeline).apply {
        initLine(viewType) // Initialize timeline with view type
    }

    fun bind(item: TimelineItem) {
        // Bind your data here
    }
}

Layout

<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="horizontal">

    <com.github.vipulasri.timelineview.TimelineView
        android:id="@+id/timeline"
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        app:markerSize="20dp"
        app:lineWidth="2dp"
        app:lineStyle="normal"/>

    <!-- Your content layout here -->

</LinearLayout>