i have a problem here, idk how to show dialogFragment in my Adapter. i want to everytime my itemView click it will show my dialogFragment
this is my onBindViewHolder
override fun onBindViewHolder(holder: ViewHolder, position: Int) {
val type = list[position]
holder.binding.tvTitle.text = type.title
holder.binding.tvIsiNotes.text = type.content
holder.itemView.setOnClickListener {
val dialogFragment = AddFragment()
dialogFragment.show(supportFragmentManager, null)
}
if(position == list.size - 1){
onLoad?.let {
it()
}
}
}
this is my code using navigationcomponent, but i want to show the Dialog.
holder.itemView.setOnClickListener {
val action = HomeFragmentDirections.actionHomeFragmentToEditFragment(type)
holder.itemView.findNavController().navigate(action)
}
You could define a custom click listener class to pass as a parameter of your adapter:
class YourAdapter(
private val clickListener: (type: Int) -> Unit
) {
override fun onBindViewHolder(holder: ViewHolder, position: Int) {
val type = list[position]
...
holder.itemView.setOnClickListener(clickListener(type))
...
}
}
Then, instantiate your adapter as:
val adapter = YourAdapter { it ->
findNavController().navigate(HomeFragmentDirections.actionHomeFragmentToEditFragment(it))
}
Related
I am using kotlin language with android studio. I want to get the properties of the element I clicked in the RecyclerView.
Ben bu kod ile saderc id alabiliyorum
Ex: date
ListAdapter.kt
class ListAdapter(
private val context: Context
) : RecyclerView.Adapter<ListAdapter.ListViewHolder>() {
private var dataList = mutableListOf<Any>()
private lateinit var mListener: onItemClickListener
interface onItemClickListener {
fun onItemClick(position: Int)
}
fun setOnItemClickListener(listener: onItemClickListener) {
mListener = listener
}
fun setListData(data: MutableList<Any>) {
dataList = data
}
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ListViewHolder {
val view = LayoutInflater.from(context).inflate(R.layout.item_row, parent, false)
return ListViewHolder(view)
}
override fun onBindViewHolder(holder: ListViewHolder, position: Int) {
val question: Questionio = dataList[position] as Questionio
holder.bindView(question)
}
override fun getItemCount(): Int {
return if (dataList.size > 0) {
dataList.size
} else {
return 0
}
}
inner class ListViewHolder(itemView: View, listener: onItemClickListener) :
RecyclerView.ViewHolder(itemView) {
fun bindView(questionio: Questionio) {
itemView.findViewById<TextView>(R.id.txt_policlinic).text = questionio.policlinic
itemView.findViewById<TextView>(R.id.txt_title).text = questionio.title
itemView.findViewById<TextView>(R.id.txt_description).text = questionio.description
itemView.findViewById<TextView>(R.id.txt_date).text = questionio.date
itemView.findViewById<TextView>(R.id.txt_time).text = questionio.time
}
init {
itemView.setOnClickListener {
listener.onItemClick(adapterPosition)
}
}
}
}
My code in onCreateView inside list fragment.Edit
ListFragment
recyclerView.layoutManager = LinearLayoutManager(requireContext())
recyclerView.adapter = adapter
observeData()
adapter.setOnItemClickListener(object : ListAdapter.onItemClickListener {
override fun onItemClick(position: Int) {
showShortToast(position.toString())
}
})
this function is also my observationData(),
I made new edits
private fun observeData() {
binding.shimmerViewContainer.startShimmer()
listViewModel.fetchQuestinData("questions",
requireContext())
.observe(viewLifecycleOwner, {
binding.shimmerViewContainer.startShimmer()
binding.shimmerViewContainer.hideShimmer()
binding.shimmerViewContainer.hide()
adapter.setListData(it)
adapter.notifyDataSetChanged()
})
}
You can pass highOrderFuction into the adapter then setonclickListener for any view you want. Like this:
class ListAdapter(
private val context: Context,
private val onItemClick:(questionio: Questionio)->Unit
) : RecyclerView.Adapter<ListAdapter.ListViewHolder>() {
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ListViewHolder {
val view = LayoutInflater.from(context).inflate(R.layout.item_row, parent, false)
return ListViewHolder(view,onItemClick)
}
...
inner class ListViewHolder(itemView: View,private val onItemClick:(questionio: Questionio)->Unit) : RecyclerView.ViewHolder(itemView) {
fun bindView(questionio: Questionio) {
//set on any view you want
itemView.findViewById<TextView>(R.id.root_view_id).
setOnClickListener{onItemClick(questionio)}
itemView.findViewById<TextView>(R.id.txt_policlinic).text =
questionio.policlinic
itemView.findViewById<TextView>(R.id.txt_title).text = questionio.title
itemView.findViewById<TextView>(R.id.txt_description).text =
questionio.description
itemView.findViewById<TextView>(R.id.txt_date).text = questionio.date
itemView.findViewById<TextView>(R.id.txt_time).text = questionio.time
}
}
}
I have tried two different ways to access my spinner. Without success thus far.
I want to load the data for each driver as chosen.
To give an idea of my app.
Code for adapter:
class TableViewAdapter(var tripsheetlist: Tripsheetlist) : RecyclerView.Adapter<TableViewAdapter.RowViewHolder>() {
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): RowViewHolder {
val itemView = LayoutInflater.from(parent.context).inflate(R.layout.table_list_item, parent, false)
return RowViewHolder(itemView) }
override fun getItemCount(): Int { return tripsheetlist.videos.size + 1 // one more to add header row
}
override fun onBindViewHolder(holder: RowViewHolder, position: Int) {
val rowPos = holder.adapterPosition
if (rowPos == 0) {
// Header Cells. Main Headings appear here
holder.itemView.apply {
setHeaderBg(txtWOrder)
setHeaderBg(txtDElNote)
setHeaderBg(txtCompany)
// setHeaderBg(txtAddress)
setHeaderBg(txtWeight)
setHeaderBg(txtbutton1)
setHeaderBg(txtbutton2)
setHeaderBg(txttvdone)
txtWOrder.text = "WOrder"
txtDElNote.text = "DElNote"
txtCompany.text = "Company"
// txtAddress.text = "Address"
txtWeight.text = "Weight"
txtbutton1.text = "Delivered"
txtbutton2.text = "Exception"
txttvdone.text = ""
}
} else {
val modal = tripsheetlist.videos[rowPos -1]
holder.itemView.apply {
setContentBg(txtWOrder)
setContentBg(txtDElNote)
setContentBg(txtCompany)
setContentBg(txtWeight)
setContentBg(txtbutton1)
setContentBg(txtbutton2)
setContentBg(txttvdone)
val list : MutableList<String> = ArrayList()
list.add("Deon")
list.add("Leon")
list.add("David")
list.add("Dick")
println(list)
val spinner : Spinner = findViewById(R.id.spnDriver)
spinner.onItemSelectedListener = object : AdapterView.OnItemSelectedListener{
override fun onItemSelected(p0: AdapterView<*>?, p1: View?, p2: Int, p3: Long) {
val item :String = list[p2]
if (item == "David")
{
txtWOrder.text = modal.WOrder.toString()
txtDElNote.text = modal.DElNote.toString()
txtCompany.text = modal.name.toString()
txtWeight.text = modal.id.toString()
}
}
override fun onNothingSelected(p0: AdapterView<*>?) {
}
}
I did it like this as a test for now. As I will get the drivers from my JSON. I don't have access to it yet so that is why the static values.
The problem I am getting now is: findViewById(R.id.spnDriver) must not be null
I first had my spinner class in my main activity and passed it over like this:
val list : MutableList<String> = ArrayList()
list.add("Deon")
list.add("Leon")
list.add("David")
list.add("Dick")
list.add("Jim")
list.add("Harry")
val adapter = ArrayAdapter( this, androidx.appcompat.R.layout.support_simple_spinner_dropdown_item, list)
val spinner: Spinner = findViewById(R.id.spnDriver)
spinner.adapter = adapter
spinner.onItemSelectedListener = object : AdapterView.OnItemSelectedListener{
override fun onItemSelected(p0: AdapterView<*>?, p1: View?, p2: Int, p3: Long) {
val item :String = list[p2]
Toast.makeText(this#MainActivity, "Driver $item selected", Toast.LENGTH_SHORT).show()
}
override fun onNothingSelected(p0: AdapterView<*>?) {
//empty
}
// insert code that activates data pull of tripsheet for driver= actifavte by method the class/object that activates the data pull. so datapuul(Driver)
}
limitDropDownHeight(spinner)
//drivers end
val btnLoadData: Button = findViewById(R.id.btnLoadData)
// weightsum(tvTotalweight, Tripsheetlist)
// totaldelNotes(tvTotaldelv,Tripsheetlist)
// setData(btnLoadData, Tripsheetlist )
fetchJson(spinner)
}
private fun fetchJson(spinner: Spinner) {
println("Attempting to Fetch JSON")
val url = "https://api.letsbuildthatapp.com/youtube/home_feed"
val request = Request.Builder().url(url).build()
val client = OkHttpClient()
client.newCall(request).enqueue(object: Callback {
override fun onFailure(call: Call, e: IOException) {
println("Failed to execute request") }
override fun onResponse(call: Call, response: Response) {
val body = response.body?.string()
println(body)
val gson = GsonBuilder().create()
val tripsheetlist = gson.fromJson(body, Tripsheetlist::class.java)
runOnUiThread {
recyclerViewTripsheetlist.adapter = TableViewAdapter(tripsheetlist, spinner)
}
}
})
}
In my Adapter class I then called it with : val spinner = spnDriver
This led to a different error: AppCompatSpinner.setOnItemSelectedListener(android.widget.AdapterView$OnItemSelectedListener)' on a null object reference
But seems like it passed the val spinner =spnDriver without a problem.
Thank you for all input and help.
I found a solution. What I did was to keep the spinner inside my MainActivity and then just pass the result of the spinner to the adapter - where I wanted to use it.
After switching from removing kotlin_extensions and switching to view binding, I received a "Unresolved reference: myViewHolder" in my onBindViewHolder method and when I replace "myViewHolder" with "holder", it then gives me a "Unresolved reference: bind". How do I resolve this.
MyAdapter
class MyAdapter(private val context: Context, private val mHelper : TaskDbHelper) : RecyclerView.Adapter<MyAdapter.MyViewHolder>(),
SwipeAndDragHelper.ActionCompletionContract {
class MyViewHolder(val binding: CellCardsBinding): RecyclerView.ViewHolder(binding.root ) {
fun binding() {
}
}
private var touchHelper: ItemTouchHelper? = null
private var list = mutableListOf<MyObject>()
override fun onAttachedToRecyclerView(recyclerView: RecyclerView) {
initList()
super.onAttachedToRecyclerView(recyclerView)
}
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): MyViewHolder {
return MyViewHolder(CellCardsBinding.inflate(LayoutInflater.from(parent.context), parent, false))
}
#RequiresApi(Build.VERSION_CODES.P)
#SuppressLint("ClickableViewAccessibility")
override fun onBindViewHolder(holder: MyViewHolder, position: Int) {
val myObject = list[position]
myViewHolder.bind(myObject)
val activity: Activity = context as Activity
holder.binding.text.setOnClickListener{
activity.launchActivity<AddNoteActivity>(42) {
putExtra("PositionInList", position.toString())
putExtra("TaskTitle", myObject.title)
putExtra("TaskText", myObject.text)
}
}
activity.findViewById<RecyclerView>(R.id.recyclerView).setOnTouchListener { _, event ->
when (event.actionMasked) {
MotionEvent.ACTION_UP -> {
updateNotesPositionInDb()
false
}
else -> {
false
}
}
}
holder.binding.title.setOnTouchListener { _, event ->
when (event.actionMasked) {
MotionEvent.ACTION_DOWN -> {
touchHelper!!.startDrag(holder)
false
}
else -> {
false
}
}
}
}
private fun initList() {
list.clear()
val db = mHelper.readableDatabase
val cursor = db.query(
TaskContract.TaskEntry.TABLE,
arrayOf(
TaskContract.TaskEntry.ID,
TaskContract.TaskEntry.COL_TASK_TITLE,
TaskContract.TaskEntry.COL_TASK_TEXT,
TaskContract.TaskEntry.COL_TASK_DATE),null, null, null, null, TaskContract.TaskEntry.ID)
while (cursor.moveToNext()) {
val id = cursor.getColumnIndex(TaskContract.TaskEntry.ID)
val idTitle = cursor.getColumnIndex(TaskContract.TaskEntry.COL_TASK_TITLE)
val idText = cursor.getColumnIndex(TaskContract.TaskEntry.COL_TASK_TEXT)
val idDate = cursor.getColumnIndex(TaskContract.TaskEntry.COL_TASK_DATE)
list.add(MyObject(cursor.getString(id), cursor.getString(idTitle), cursor.getString(idText), cursor.getString(idDate)))
}
notifyDataSetChanged()
cursor.close()
db.close()
}
override fun getItemCount(): Int {
return list.size
}
override fun onViewMoved(oldPosition: Int, newPosition: Int) {
val target = list[oldPosition]
list.removeAt(oldPosition)
list.add(newPosition, target)
notifyItemMoved(oldPosition, newPosition)
}
override fun onViewSwiped(position: Int) {
deleteTask(list[position].ID)
list.removeAt(position)
notifyItemRemoved(position)
updateNotesPositionInDb()
}
fun setTouchHelper(touchHelper: ItemTouchHelper) {
this.touchHelper = touchHelper
}
fun addTask(taskTitle : String, taskText: String) {
val values = ContentValues()
val sdf = SimpleDateFormat("dd/MM/yyyy/", Locale.US)
val date = sdf.format(Date())
values.put(TaskContract.TaskEntry.ID, list.size)
values.put(TaskContract.TaskEntry.COL_TASK_TITLE, taskTitle)
values.put(TaskContract.TaskEntry.COL_TASK_TEXT, taskText)
values.put(TaskContract.TaskEntry.COL_TASK_DATE, date)
val db = mHelper.readableDatabase
db.insertWithOnConflict(TaskContract.TaskEntry.TABLE,
null,
values,
SQLiteDatabase.CONFLICT_REPLACE)
db.close()
list.add(MyObject(list.size.toString(), taskTitle, taskText, date))
notifyItemInserted(list.size)
}
fun addTask() {
val test: Activity = context as Activity
test.launchActivity<AddNoteActivity>(42) {
/* putExtra("user", "854")
p utExtra("user2", "46850") */
}
}
private fun deleteTask(taskId: String) {
val db = mHelper.readableDatabase
db.delete(TaskContract.TaskEntry.TABLE,
"id=$taskId", null)
db.close()
}
fun modifyTask(taskPosition: String, taskTitle: String, taskText: String) {
val target = list[taskPosition.toInt()]
target.title = taskTitle
target.text = taskText
val values = ContentValues()
val sdf = SimpleDateFormat("dd/MM/yyyy/", Locale.US)
val date = sdf.format(Date())
values.put(TaskContract.TaskEntry.ID, taskPosition)
values.put(TaskContract.TaskEntry.COL_TASK_TITLE, taskTitle)
values.put(TaskContract.TaskEntry.COL_TASK_TEXT, taskText)
values.put(TaskContract.TaskEntry.COL_TASK_DATE, date)
val db = mHelper.readableDatabase
db.update(TaskContract.TaskEntry.TABLE,
values, TaskContract.TaskEntry.ID + "=" + target.ID, null)
db.close()
notifyItemChanged(taskPosition.toInt())
}
private fun updateNotesPositionInDb() {
val db = mHelper.readableDatabase
var i = 0
while (i < list.size) {
val values = ContentValues()
values.put(TaskContract.TaskEntry.ID, i)
db.update(TaskContract.TaskEntry.TABLE,
values, TaskContract.TaskEntry.ID + "=? AND " + TaskContract.TaskEntry.COL_TASK_TITLE + "=?", arrayOf(list[i].ID, list[i].title))
i++
}
db.close()
}
I've tried reading Android Studio's official documentation, but it cannot solve my specific problem.
in your class MyViewHolder you have method called binding and you need also to implement it and add paramter
shoud be
class MyViewHolder(private val binding: CellCardsBinding): RecyclerView.ViewHolder(binding.root ) {
fun bind(data:MyObject) {
binding.yourView=data.title ...
}
}
in onBindViewHolder
..
holder.bind(myObject)
After switching from removing kotlin_extensions and switching to view binding, I received a "Unresolved reference: myViewHolder" in my onBindViewHolder method
Well, your onBindViewHolder method is passing a variable called holder and you're trying to use a variable called myViewHolder, so that seems like a problem.
// --------------------this-----v
override fun onBindViewHolder(holder: MyViewHolder, position: Int) {
val myObject = list[position]
// v--- doesn't match this
myViewHolder.bind(myObject)
and when I replace "myViewHolder" with "holder", it then gives me a "Unresolved reference: bind". How do I resolve this.
Your MyViewHolder class has a method called binding that takes no arguments. There is no bind method that takes a "myObject".
class MyViewHolder(val binding: CellCardsBinding): RecyclerView.ViewHolder(binding.root ) {
fun binding() {
}
}
Edit
You should pass an instance of the data class
class MyViewHolder(val binding: CellCardsBinding): RecyclerView.ViewHolder(binding.root ) {
fun bind(object: MyObject) {
// Set variables on binding
}
}
Then pass an instance from your list via onBindViewHolder:
override fun onBindViewHolder(holder: MyViewHolder, position: Int) {
val myObject = list[position]
holder.bind(myObject)
Please check this blog post for more.
I got my answer.
class MyAdapter(private val context: Context, private val mHelper : TaskDbHelper) : RecyclerView.Adapter<MyAdapter.MyViewHolder>(),
SwipeAndDragHelper.ActionCompletionContract {
class MyViewHolder(val binding: CellCardsBinding): RecyclerView.ViewHolder(binding.root ) {
private val titleView: TextView = itemView.findViewById<View>(R.id.title) as TextView
val textView: TextView = itemView.findViewById<View>(R.id.text) as TextView
private val dateTextView: TextView = itemView.findViewById<View>(R.id.date) as TextView
fun binding (myObject: MyObject) {
titleView.text = myObject.title
textView.text = myObject.text
dateTextView.text = myObject.date
}
}
I simply initialised the view I wanted to reference in my layout and called them in the binding() function.
I really appropriate it if somebody could help me out.
I apply my second RecyclerView with a custom swipe Button object, here fun handleSwipeClick is set to handle the action.
My question is: how can i make this function (handleSwipeClick) to handle each row specifically?? Like Delete this row item
Adapter #1
override fun onBindViewHolder(holder: ViewHolder, position: Int) {
val item = baxters[position]
holder.listItem_time.text = item.intakeTime
holder.itemView.dose_recycler_view.apply {
dose_recycler_view.setHasFixedSize(true)
layoutManager = LinearLayoutManager(context)
dose_recycler_view.layoutManager = layoutManager
//Swipe action
val swipe = object: SwipeHelper(context,dose_recycler_view, 400){
override fun instaniateSwipeButton(
viewHolder: RecyclerView.ViewHolder,
buffer: MutableList<SwipeButton>
) {
// Adding Buttons
buffer.add(
SwipeButton(context,
"",
30,
R.drawable.ic_check_circle,
Color.parseColor("#66ff66"),
object : ButtonClickListener {
override fun handleSwipeClick(id: Int) {
// Click action
// TODO call to change LAST TAKEN and NEW INTAKE
Companion.errorToast(
context,
"Medicijn ingenomen. $id"
)
}
})
)
}
}
adapter = ClientDoseListAdapter(item.doses.toMutableList())
setRecycledViewPool(viewPool)
}
}
Adapter #2
override fun onBindViewHolder(holder: ViewHolder, position: Int) {
val item = doses[position]
/// DELETE THIS ROW
holder.med_name.text = item.medicineItem.name
holder.dose_amount.text = item.amount.toString()
}
First, create a delete method in ClientDoseListAdapter adapter, then call this method in the click action like,
fun delete(dose: Dose) {
val index: Int = doseList.indexOf(dose)
doseList.removeAt(index)
notifyDataSetChanged()
}
override fun handleSwipeClick(id: Int) {
// Click action
adapter.delete(adapter.getItem(viewHolder.adapterPosition))
}
Adapetr #1 looks like this:
override fun onBindViewHolder(holder: ViewHolder, position: Int) {
val item = baxters[position]
holder.listItem_time.text = item.intakeTime
holder.itemView.dose_recycler_view.apply {
dose_recycler_view.setHasFixedSize(true)
layoutManager = LinearLayoutManager(context)
dose_recycler_view.layoutManager = layoutManager
// First init a new adapter
dosesAdapter = ClientDoseListAdapter(item.doses.toMutableList())
// Swipe action
val swipe = object: SwipeHelper(context, dose_recycler_view, 400){
override fun instaniateSwipeButton(
viewHolder: RecyclerView.ViewHolder,
buffer: MutableList<SwipeButton>
) {
// Adding Buttons
buffer.add(
SwipeButton(context,
"",
30,
R.drawable.ic_check_circle,
Color.parseColor("#66ff66"),
object : ButtonClickListener {
override fun confirmDoseTaken(id: Int) {
// Click action
// TODO call to change LAST TAKEN and NEW INTAKE
Companion.errorToast(
context,
"Medicijn ingenomen. $id"
)
// i can call removeItem method in adapter
dosesAdapter.removeItem()
}
})
)
}
}
// set recyclerView adapter
adapter = dosesAdapter
setRecycledViewPool(viewPool)
}
}
Data Load in Recyclerview after Generated Click Event Item using Interface on
Activity. code is below but Activity onItemCompanyClick is not execute.
How to Generate click event and get Value from the recyclerview using interfce.
MainActivity.kt
class Company : AppCompatActivity(),CompanyAdapter.Listner{
override fun onItemCompanyClick(company: Company) {
Toast.makeText(this, "You clicked: ${company.Cmp_Name}", Toast.LENGTH_LONG).show()
}
}
CompanyAdapter.kt
class CompanyAdapter(private val listner :Listner, internal var companyList: List<Company>)
:RecyclerView.Adapter<CompanyAdapter.CompanyViewHolder>()
{
interface Listner {
fun onItemCompanyClick(company: Company)
}
override fun onCreateViewHolder(p0: ViewGroup, p1: Int): CompanyViewHolder {
val itemView = LayoutInflater.from(p0.context).inflate(R.layout.list_view_item,p0,false)
return CompanyViewHolder(itemView)
}
override fun getItemCount(): Int {
return companyList.size
}
override fun onBindViewHolder(p0: CompanyViewHolder, p1: Int) {
// p0.rbButton.text = this!!.companyList?.get(p1)?.Cmp_Name
p0.bindModel(companyList[p1])
}
inner class CompanyViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView){
val radioButton : RadioButton = itemView.findViewById(R.id.rbCompanyName)
fun bindModel(company: Company){
radioButton.text = company.Cmp_Name
}
}
}
Your interface is never called, you should call if when user click on your button.
Try something like:
MainActivity.kt
class Company : AppCompatActivity(),CompanyAdapter.Listner{
override fun onItemCompanyClick(company: Company){
Toast.makeText(this, "You clicked: ${company.Cmp_Name}", Toast.LENGTH_LONG).show()
}
}
CompanyAdapter.kt
class CompanyAdapter(private val listner :Listner, internal var companyList: List<Company>)
:RecyclerView.Adapter<CompanyAdapter.CompanyViewHolder>()
{
interface Listner{
fun onItemCompanyClick(company: Company)
}
override fun onCreateViewHolder(p0: ViewGroup, p1: Int): CompanyViewHolder {
val itemView = LayoutInflater.from(p0.context).inflate(R.layout.list_view_item,p0,false)
return CompanyViewHolder(itemView)
}
override fun getItemCount(): Int {
return companyList.size
}
override fun onBindViewHolder(p0: CompanyViewHolder, p1: Int) {
// p0.rbButton.text = this!!.companyList?.get(p1)?.Cmp_Name
p0.bindModel(companyList[p1])
}
inner class CompanyViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView){
val radioButton : RadioButton = itemView.findViewById(R.id.rbCompanyName)
fun bindModel(company: Company){
radioButton.text = company.Cmp_Name
radioButton.setOnClickListener(_ -> listner.onItemCompanyClick(company))
}
}
}
Also read this guide about interface, hope it helps.