Binding adapter to recycler view
Mon Dec 21 2020 06:50:35 GMT+0000 (Coordinated Universal Time)
Saved by
@swalia
##kotlin,#java,#android
class ContactsAdapter (private val mContacts: List<Contact>) : RecyclerView.Adapter<ContactsAdapter.ViewHolder>()
{
// Provide a direct reference to each of the views within a data item
// Used to cache the views within the item layout for fast access
inner class ViewHolder(listItemView: View) : RecyclerView.ViewHolder(listItemView) {
// Your holder should contain and initialize a member variable
// for any view that will be set as you render a row
val nameTextView = itemView.findViewById<TextView>(R.id.contact_name)
val messageButton = itemView.findViewById<Button>(R.id.message_button)
}
// ... constructor and member variables
// Usually involves inflating a layout from XML and returning the holder
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ContactsAdapter.ViewHolder {
val context = parent.context
val inflater = LayoutInflater.from(context)
// Inflate the custom layout
val contactView = inflater.inflate(R.layout.item_contact, parent, false)
// Return a new holder instance
return ViewHolder(contactView)
}
// Involves populating data into the item through holder
override fun onBindViewHolder(viewHolder: ContactsAdapter.ViewHolder, position: Int) {
// Get the data model based on position
val contact: Contact = mContacts.get(position)
// Set item views based on your views and data model
val textView = viewHolder.nameTextView
textView.setText(contact.name)
val button = viewHolder.messageButton
button.text = if (contact.isOnline) "Message" else "Offline"
button.isEnabled = contact.isOnline
}
// Returns the total count of items in the list
override fun getItemCount(): Int {
return mContacts.size
}
}
content_copyCOPY
Code of Recycler View Adapter..Checkout URL
https://guides.codepath.com/android/using-the-recyclerview#binding-the-adapter-to-the-recyclerview
Comments