I am trying to integrate a second click listener on recyclerview but I could not do it.
I am developing a checklist and I created recyclerview. Inside the recyclerview, there are a checkbox and textview. I can handle the click listener on textview or on itemclick.
But I can not handle the checkbox, check or uncheck event?
I am storing the data on Firebase but this is not a problem. I just can not handle second click listener on adapter class.
Thank you very much for your answers in advance.
adapter class
package com.example.shoppinglist
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import android.widget.CheckBox
import android.widget.TextView
import androidx.recyclerview.widget.RecyclerView
class CheckListRecyclerViewAdapterClass (
var checkList: List<CheckListModelClass>,
private val clickListener: (CheckListModelClass) -> Unit
) : RecyclerView.Adapter<RecyclerView.ViewHolder>() {
var checkListTotalList: List<CheckListModelClass> = ArrayList()
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): RecyclerView.ViewHolder {
val myView = LayoutInflater.from(parent.context).inflate(R.layout.check_list_rec_view_model_layout, parent, false)
return CheckListViewHolder(myView)
}
override fun onBindViewHolder(holder: RecyclerView.ViewHolder, position: Int) {
(holder as CheckListViewHolder).bind(checkListTotalList[position], clickListener)
}
override fun getItemCount(): Int {
return checkListTotalList.size
}
fun submitList(checkList: List<CheckListModelClass>) {
checkListTotalList = checkList
}
fun updateList(checkList: List<CheckListModelClass>) {
checkListTotalList = checkList
notifyDataSetChanged()
}
class CheckListViewHolder constructor(itemView: View) : RecyclerView.ViewHolder(itemView) {
private val checkListCheckBox: CheckBox = itemView.findViewById(R.id.check_list_rec_view_model_layout_checkBox)
private val checkListTextView: TextView = itemView.findViewById(R.id.check_list_rec_view_model_layout_textView)
fun bind(
checkListModelClass: CheckListModelClass,
clickListener: (CheckListModelClass) -> Unit
) {
checkListTextView.text = checkListModelClass.checkListItemName
val checkListCheckBoxPosition = checkListModelClass.checkListItemCheckListPosition
checkListCheckBox.isChecked = checkListCheckBoxPosition
checkListTextView.setOnClickListener { clickListener(checkListModelClass) }
}
}
}
main activity;
package com.example.shoppinglist
import android.os.Bundle
import android.util.Log
import android.view.View
import android.view.inputmethod.EditorInfo
import android.view.inputmethod.InputMethodManager
import android.widget.EditText
import android.widget.Toast
import androidx.appcompat.app.AppCompatActivity
import androidx.recyclerview.widget.LinearLayoutManager
import androidx.recyclerview.widget.RecyclerView
import com.google.firebase.firestore.CollectionReference
import com.google.firebase.firestore.FirebaseFirestore
import com.google.firebase.firestore.SetOptions
import com.google.firebase.firestore.Source
class MainActivity : AppCompatActivity() {
private var checkListTotalListArray = ArrayList<CheckListModelClass>()
private lateinit var checkListRecyclerViewAdapterClass: CheckListRecyclerViewAdapterClass
private lateinit var checkListModelClass: CheckListModelClass
private lateinit var addItemToListEditText: EditText
private lateinit var firebaseFirestore: FirebaseFirestore
private lateinit var collectionReference: CollectionReference
private lateinit var source: Source
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
firebaseFirestore = FirebaseFirestore.getInstance()
collectionReference = firebaseFirestore.collection("shoppingList")
checkListTotalListArray = arrayListOf()
checkListRecyclerViewAdapterClass =
CheckListRecyclerViewAdapterClass(checkListTotalListArray) { checkListModelClassItem: CheckListModelClass ->
checkListClickListener(checkListModelClassItem)
}
takeDataFromFireStore()
//recyclerview
val checkListRecyclerView = findViewById<RecyclerView>(R.id.check_list_recycler_view)
val checkListTotalListLayoutManager = LinearLayoutManager(this)
checkListTotalListLayoutManager.orientation = LinearLayoutManager.VERTICAL
checkListRecyclerView.layoutManager = checkListTotalListLayoutManager
checkListRecyclerView.adapter = checkListRecyclerViewAdapterClass
addItemToListEditText = findViewById(R.id.check_list_fragment_item_enter_edit_text)
addItemToListEditText.imeOptions = EditorInfo.IME_ACTION_DONE
addItemToListEditText.isSingleLine = true
addItemToList()
}
private fun checkListClickListener(checkListModelClass: CheckListModelClass) {
//handle click listener
Toast.makeText(this, "first click listener", Toast.LENGTH_LONG).show()
}
private fun checkListClickListenerTwo(checkListModelClass: CheckListModelClass) {
//handle click listener
Toast.makeText(this, "first click listener two", Toast.LENGTH_LONG).show()
}
private fun takeDataFromFireStore(){
checkListTotalListArray.clear()
collectionReference.get().addOnSuccessListener { documents ->
if (!documents.isEmpty) {
for (document in documents){
val resultForCheckListItems: CheckListModelClass = document.toObject<CheckListModelClass>(CheckListModelClass::class.java)
checkListTotalListArray.add(resultForCheckListItems)
}
checkListRecyclerViewAdapterClass.submitList(checkListTotalListArray)
checkListRecyclerViewAdapterClass.notifyDataSetChanged()
}
}
.addOnFailureListener { exception ->
Log.w("listen_data", "Error getting documents: ", exception)
}
}
private fun saveDataToFireStore(){
collectionReference.document()
.set(checkListModelClass, SetOptions.merge())
.addOnSuccessListener {
takeDataFromFireStore()
Log.d("TAG", "DocumentSnapshot successfully written!")
}
.addOnFailureListener { e -> Log.w("TAG", "Error writing document", e) }
}
private fun addItemToList(){
addItemToListEditText.onDone { addItemToListEditText.hideKeyboard() }
}
private fun View.hideKeyboard() {
val inputMethodManager = context.getSystemService(INPUT_METHOD_SERVICE) as InputMethodManager
inputMethodManager.hideSoftInputFromWindow(windowToken, 0)
}
private fun EditText.onDone(callback: () -> Unit) {
// These lines optional if you don't want to set in Xml
imeOptions = EditorInfo.IME_ACTION_DONE
maxLines = 1
setOnEditorActionListener { _, actionId, _ ->
if (actionId == EditorInfo.IME_ACTION_DONE) {
// Your action on done
if(addItemToListEditText.text.toString() != "") {
checkListModelClass =
CheckListModelClass(false, addItemToListEditText.text.toString())
saveDataToFireStore()
//checkListTotalListArray.add(checkListModelClass)
//checkListRecyclerViewAdapterClass.updateList(checkListTotalListArray)
addItemToListEditText.text.clear()
}
callback.invoke()
true
}
false
}
}
}
model class;
package com.example.shoppinglist
class CheckListModelClass(
var checkListItemCheckListPosition: Boolean = false,
var checkListItemName: String = ""
)
CodePudding user response：
Click listener won't mostly work for CheckBox. What you could do is wrap it in any ViewGroup like LinearLayout and use that ViewGroup to implement your click listener.
You can do it in XML or programmatically. If that is what you really want, wrap it in a ViewGroup.
CodePudding user response：
But I can not handle the checkbox, check or uncheck event?
If I understand this correctly, you want to listen to its check/uncheck event. Normally you can do it via listening to a click event or listening to its state change.
As mentioned by @cactustictacs
, you can simply use setOnClickListener to determine if the view (checkbox) has been clicked and using the actual instance of checkbox for your intended conditional logic.
checkListCheckBox.setOnClickListener {
if (checkListCheckBox.isChecked) {
...
} else {
...
}
}
But if you want to listen when its checked state changes, you can use setOnCheckedChangeListener, with this function you can simply use the view from the lambda parameter or the boolean state
checkListCheckBox.setOnCheckedChangeListener { view, isChecked ->
if (view.isChecked) { // or simply if (isChecked) {..}
...
} else {
...
}
}