androidandroid-layoutandroid-recyclerviewlayoutandroid-adapter

How to fill item width children in recyclerView android?

Hey I am working in android. I want to fit children in whole view of recyclerview android. I have horizontal recylerview. I will show what I want in diagram.

Scenario 1

when I have more item in recyclerview, I want to show children like this in my recycler view.

Expected Output

enter image description here

Scenario 2

when I have three item I want to show like this. It will fill whole view in reyclerview.

Expected Output

enter image description here

Scenario 3

When I have Two item in reyclerview, I need to look like this

Expected Output

enter image description here

The problem I am getting that I have 3 item, the view is not filling fully. Actually I want to stretch whole view to full width like Scenario 2.

Actual output

enter image description here

item_layout.xml

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_marginEnd="10dp"
    android:orientation="vertical">

    <LinearLayout
        android:id="@+id/container"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="10dp"
        android:background="@drawable/drawable_selector"
        android:orientation="vertical">

        <TextView
            android:id="@+id/text"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:layout_marginTop="10dp" />

        <TextView
            android:id="@+id/subText"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginStart="10dp"
            android:layout_marginEnd="10dp"
            android:layout_marginBottom="10dp" />

    </LinearLayout>

    <RelativeLayout
        android:id="@+id/tagContainer"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:visibility="gone">

        <TextView
            android:id="@+id/tagText"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:gravity="center"
            android:paddingStart="10dp"
            android:paddingEnd="10dp" />

    </RelativeLayout>

</FrameLayout>

UPDATE

after @Cheticamp suggestion I did this code

companion object {
        fun bindView(parent: ViewGroup): XYZViewHolder {
            val view = XyzLayoutBinding.inflate(
                LayoutInflater.from(parent.context),
                parent,
                false
            )
            val lp = view.container.layoutParams
            lp.width = parent.measuredWidth / 3
            return OptionsViewHolder(
                view
            )
        }
    }

As you can see my last item is cut from the end.

enter image description here

I think in my framelayout i Used marginEnd 10 dp is it causing issue? please refer my layout if you need more. And one more thing I didn't divide framelayout instead I take linear layout as container. I am adding my github link.

Solution

  • You can change the width of the RecyclerView item views in onCreateViewHolder(). The ViewGroup parent is the RecyclerView.

    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): RecyclerView.ViewHolder {
    val view = LayoutInflater.from(parent.context).inflate(R.layout.item_view, parent, false)
    val lp = view.layoutParams
    // Change the width of the item view here
    lp.width = parent.measuredWidth / 3 // width is 1/3 of the width of the RecyclerView
    return ItemViewHolder(view)
}