app / sg.edu.ntu.scse.cz2006.gymbuddies.adapter / ChatAdapter

ChatAdapter

open class ChatAdapter : Adapter<ChatViewHolder!>

Recycler Adapter for Chat Object For sg.edu.ntu.scse.cz2006.gymbuddies.adapter in Gym Buddies! The adapter is used to display list of chat history of a user

Author
Chia Yu

Since
2019-10-19

Types

ChatViewHolder

ViewHolder for Chat it holds reference to frequent update views and provides helper method to bind data information onto views

open class ChatViewHolder : ViewHolder, OnClickListener

Constructors

<init>

Constructor method to initialise ChatAdapter

ChatAdapter(chats: MutableList<Chat!>!, favUserIds: MutableList<String!>!)

Properties

ACTION_CLICK_ON_FAV_ITEM	unique identifier to specify user click on favoured (heart shape) button of display view `static val ACTION_CLICK_ON_FAV_ITEM: Int`
ACTION_CLICK_ON_ITEM_BODY	unique identifier to specify user click on item body of display view `static val ACTION_CLICK_ON_ITEM_BODY: Int`
ACTION_CLICK_ON_ITEM_PIC	unique identifier to specify user click on profile picture of display view `static val ACTION_CLICK_ON_ITEM_PIC: Int`
ACTION_INVALID	unique identifier to specify undefined action `static val ACTION_INVALID: Int`
chats	list that holds user's chat chat information `var chats: MutableList<Chat!>!`
favUserIds	it store list of other user's id, used to denote that other user is current user's buddy `var favUserIds: MutableList<String!>!`
listener	interface that allow activity to observe user interaction with RecyclerView `var listener: OnRecyclerViewInteractedListener<ChatViewHolder!>!`
sdf	it is used to format timestamp from long to String `var sdf: SimpleDateFormat!`
TAG	TAG is unique identifier to for logging purpose `var TAG: String!`

Functions

getItemCount	the method is return number of messages to be display on RecyclerView `open fun getItemCount(): Int`
onBindViewHolder	this method make use of view holder to update display information onto the view `open fun onBindViewHolder(holder: ChatViewHolder, position: Int): Unit`
onCreateViewHolder	the method based on view type to render a view and associate the view with respective view holder `open fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ChatViewHolder`
setFavUserIds	setter method to update list of favouried `open fun setFavUserIds(favUserIds: MutableList<String!>!): Unit`
setOnRecyclerViewClickedListener	The method provides an interface to allow other class to register itself as observer of user interacting event `open fun setOnRecyclerViewClickedListener(listener: OnRecyclerViewInteractedListener<ChatViewHolder!>!): Unit`