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Multiple selection RecyclerView Android
Pawneshwer Gupta
Pawneshwer Gupta
August 31, 2017
1 min

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Multiple selection RecyclerView Android
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Multiple selection RecyclerView Android

Multiple selection RecyclerView Android

Android RecyclerView multi selection expand list items and change list items color

Hello Devs, If you are previously working with ListView and recently shifted to RecyclerView then you maybe missing some great features like ItemClickListener, MultipleItemSelection, TouchRippleEffect,EmptyView and more.

But in RecyclerView we need to do this manually, so lets add MultiSelection functionality in RecyclerView.

Lets start:

code of MainActivity.java

Description : So i created a boolean variable to check of multiple selection is active or not. and a List<Integer> selectedIds containing values which are selected. In RecyclerView's onItemTouchListener i used custom implementation of RecyclerView.OnItemTouchListener, for handling click and longClick events.

code of RecyclerItemClickListener.java

On longClick we will check if multiSelection is false then set this to true. On singleClick or LongClick check if currently selected item is in List<Integer> selectedIds is list then remove that item from list, otherwise add that item in list and notify adapter for latest value. In adapter check if selectedItem match with current item in adapter then change backgroud or foreground color as per your choice.

code of MyAdapter.java

in onBindViewHolder method we will check if our selected items list contain current item then change its color to desired color to show as selected item, otherwise set color to transparent to show this like unselected item.

colors used in this demo

<color name="colorPrimary">#3F51B5</color>
<color name="colorPrimaryDark">#303F9F</color>
<color name="colorAccent">#FF4081</color>
<color name="colorActionMode">#009362</color>
<color name="colorControlActivated">#50FF4081</color>

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recyclerviewmulti selection


Pawneshwer Gupta

Pawneshwer Gupta

Software Developer

Pawneshwer Gupta works as a software engineer who is enthusiastic in creating efficient and innovative software solutions.



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