android studio recyclerview which item clicked

#Android studio recyclerview which item clicked how to#
#Android studio recyclerview which item clicked android#
#Android studio recyclerview which item clicked code#

Creating an interface allows us to use the interface functions in the current class and write the function definition elsewhere. We first want to create an interface ListItemClickListener(can be named anything). In the adapter class we add the following Step 1: Create an interface Since the data to the RecyclerView is usually passed from the same activity, we can use the position to get data of the item that is clicked.

Override onClickListItem(int position) and use the position of the item clicked to do something with it.

Fix the adapter initialization since we changed the adapter constructor in the activity onCreate.

In the activity where the RecyclerView was created implement the ListItemClickListener interface.

Override onClick in the ViewHolder class and get the position being clicked using getAdapterPosition() and use the position to call mOnClickListener.onListItemClick(position), the function in the interface we created.

Implement View.OnClickListener in the ViewHolder class and add tOnClickListener(this) in the ViewHolder constructor.

Add a ListItemClickListener as a parameter to the constructor and store it in mOnClickListener ListView/GridView recycle the item layout but dont keep the reference to the layout children, forcing us to call findViewById() for every child of our item.

Create a ListItemClickListener member variable of the adapter called mOnClickListener.

Create an interface ListItemClickListener with an onClickListItem(can be named anything) method.

What we want is that when an item is clicked, we get the item’s model (User) information and may be. RecyclerView allows you to set an OnClickListener in your adapter. There is a Recyclerview adapter with a Recyclerview with a list of items (Users in this case). What we are doing here is calling interface’s function in the ViewHolder’s onClick and defining what this function will do in the activity by implementing the interface in the activity. For example the ability to add an OnItemClickListener that triggers when an item is clicked. Setting up onClick in a RecyclerView is not as straightforward as setting up onClick on a button, but once you create it yourself it makes a lot more sense.

#Android studio recyclerview which item clicked how to#

If you are working in Kotlin go over to How to add onClick to RecyclerView list items in Kotlin. As an example I will be adding onClick to RecyclerView in a simple app that displays a list of Github repositories. Now when a list item is clicked, the ViewHolder handles the click and calls the method defined in our Activity/Fragment. If you would like to know how to create a RecyclerView check my previous post. In the onClick method call the onListItemClick function. Along with that, selected item count shows on the action bar.

#Android studio recyclerview which item clicked code#

If you want to follow along you can get the starter code here and try to implement it yourself. In this tutorial, you can see that multiple recyclerView items can be selected and deleted.

I am adding the click functionality to a RecyclerView that displays a list of Github repositories. In this article I go over how to make list items respond to clicks.

#Android studio recyclerview which item clicked android#

Tags: Android, Android Basics, Github Repository App, RecyclerView, On Click, Avin's Blog Android Basics: RecyclerView - II, adding onClick to list items