I'm new to Android development. I'm trying to add a Multi countdown timer in recycler view but it does not work. Editing and deleting items in the list are okay, but I have no idea how to add a countdown timer function.
When I click the play button for starting the countdown, nothing happens. I would really appreciate it if you could tell me with a simple example.
Here is Adapter.kt.
class UserAdapter(val c: Context, val userList:ArrayList<UserData>): RecyclerView.Adapter<UserAdapter.UserViewHolder>() {
inner class UserViewHolder(val v: View) : RecyclerView.ViewHolder(v) {
var name: TextView
var DeleteButton: ImageView
var EditButton: ImageView
var PlayButton: ImageView
val start = 600_000L
var timer = start
lateinit var countDownTimer: CountDownTimer
init {
name = v.findViewById<TextView>(R.id.alarm_name)
DeleteButton = v.findViewById(R.id.alarm_button_delete)
EditButton=v.findViewById(R.id.alarm_button_edit)
PlayButton=v.findViewById(R.id.alarm_button_start)
DeleteButton.setOnClickListener { DeleteItem(it) }
EditButton.setOnClickListener { EditItem(it) }
PlayButton.setOnClickListener { PlayItem(it)}
}
private fun PlayItem(v: View) {
countDownTimer = object : CountDownTimer(timer,1000){
override fun onFinish() {
}
override fun onTick(millisUntilFinished: Long) {
}
}.start()
}
private fun DeleteItem(v: View) {
userList.removeAt(adapterPosition)
notifyDataSetChanged()
Toast.makeText(c, "Deleted this Information", Toast.LENGTH_SHORT).show()
}
private fun EditItem(v: View){
val position = userList[adapterPosition]
val v = LayoutInflater.from(c).inflate(R.layout.add_item,null)
val name = v.findViewById<EditText>(R.id.add_alarm_name)
AlertDialog.Builder(c)
.setView(v)
.setPositiveButton("Ok"){
dialog,_->
position.add_alram_name = name.text.toString()
notifyDataSetChanged()
Toast.makeText(c,"User Information is Edited",Toast.LENGTH_SHORT).show()
dialog.dismiss()
}
.setNegativeButton("Cancel"){
dialog,_->
dialog.dismiss()
}
.create()
.show()
true
}
}
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): UserViewHolder {
val inflater = LayoutInflater.from(parent.context)
val v = inflater.inflate(R.layout.list_item, parent, false)
return UserViewHolder(v)
}
override fun onBindViewHolder(holder: UserViewHolder, position: Int) {
val newList = userList[position]
holder.name.text = newList.add_alram_name
}
override fun getItemCount(): Int {
return userList.size
}
