I have made an recyclerview with firebase realtime database and applied some condition in adapter class,applied condition works but recyclerview item didn't show data in card view it show only cardview but in searchview it shows data correctly in cardview; I have added screenshot please solve my problem.
package com.bookqueen.bookqueen.adapters
class bookadapter(
private var booklist: ArrayList<Booksmodel>,
private val itemClickListener: OnBookItemClicklistner
) : RecyclerView.Adapter<bookadapter.bookholder>() {
var searchText: String = ""
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): bookholder {
val view = LayoutInflater.from(parent.context).inflate(R.layout.singlebook, parent, false)
return bookholder(view)
}
@SuppressLint("NotifyDataSetChanged")
fun filterlist(filterlist: ArrayList<Booksmodel>, searchText: String) {
booklist = filterlist
this.searchText = searchText
notifyDataSetChanged()
}
override fun onBindViewHolder(holder: bookholder, position: Int) {
val view = booklist[position]
holder.bind(view, itemClickListener)
}
override fun getItemCount(): Int {
return booklist.size
}
inner class bookholder(view: View) : RecyclerView.ViewHolder(view) {
val bookname: TextView = view.findViewById(R.id.recbooknametxt)
val bookpublication = view.findViewById<TextView>(R.id.recbookpubtxt)
val bookdept = view.findViewById<TextView>(R.id.recbookdepttxt)
val bookimage = view.findViewById<ImageView>(R.id.recbookimg)
fun bind(book: Booksmodel, clicklistner: OnBookItemClicklistner) {
val database = FirebaseDatabase.getInstance()
val auth = FirebaseAuth.getInstance()
database.getReference("Users").child(book.UserUID.toString())
.addListenerForSingleValueEvent(object : ValueEventListener {
override fun onDataChange(snapshot: DataSnapshot) {
if (snapshot.value != null) {
val usercollege = snapshot.child("College").value.toString()
database.getReference("Users")
.child(auth.currentUser!!.uid)
.addListenerForSingleValueEvent(object :
ValueEventListener {
override fun onDataChange(snapshot: DataSnapshot) {
if (snapshot.value != null) {
val mycollege =
snapshot.child("College").value.toString()
if (usercollege == mycollege) {
searchitem(book)
} else {
booklist.remove(book)
}
}
}
override fun onCancelled(error: DatabaseError) {
}
})
}
}
override fun onCancelled(error: DatabaseError) {
}
})
itemView.setOnClickListener {
clicklistner.onBookItemclick(book)
}
}
fun searchitem(book: Booksmodel) {
if (searchText.isNotBlank()) {
val highlightedText = book.BookName!!.replace(
searchText,
"<font color='red'>$searchText</font>",
true
)
bookname.text =
HtmlCompat.fromHtml(
highlightedText,
HtmlCompat.FROM_HTML_MODE_LEGACY
)
} else {
bookname.text = book.BookName
}
//bookname.text=book.BookName
bookpublication.text = book.BookPublication
bookdept.text = book.Department
Picasso.get().load(book.BookImage).into(bookimage)
}
}
interface OnBookItemClicklistner {
fun onBookItemclick(books: Booksmodel)
}
}
