如何在可展开列表视图Kotlin中的Header中获取子计数



在此处输入图像描述

如何获得与标题中图片所示相同的子计数。

API回复:-

data class ToDoListResponse(
val message: String = "",
val success: Int = 0,
val todays_task_list: MutableList<TodaysTask>,
val todays_task_total: Int = 0,
val tomorows_task_list: MutableList<TodaysTask>,
val tomorrow_task_total: Int = 0,
val upcomming_task_list: MutableList<TodaysTask>,
val upcomming_task_total: Int = 0)
{
data class TodaysTask(
val created_at: String = "",
val description: String = "",
val due_date: String= "",
val is_completed: String= "",
val is_pinned_task: String= "",
val remind_me: String= "",
val task_id: String= "",
var title: String= "",
val updated_at: String= "",
val user_id: String= ""
)

adpader:-

package com.coronation.jackpotplus.adapter
import android.annotation.SuppressLint
import android.app.DatePickerDialog
import android.content.Context
import android.graphics.Typeface
import android.os.Build
import android.util.Log
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import android.widget.*
import androidx.annotation.RequiresApi
import com.coronation.jackpotplus.R
import com.coronation.jackpotplus.model.CommonResponse
import com.coronation.jackpotplus.model.ToDoListResponse
import com.coronation.jackpotplus.network.ApiClient
import com.coronation.jackpotplus.network.ApiService
import com.coronation.jackpotplus.view.ToDoListActivity
import com.google.android.material.bottomsheet.BottomSheetDialog
import com.google.android.material.textfield.TextInputEditText
import org.jetbrains.anko.layoutInflater
import retrofit2.Call
import retrofit2.Response
import java.text.SimpleDateFormat
import java.time.LocalDate
import java.time.ZoneId
import java.time.format.DateTimeFormatter
import java.util.*

@Suppress("NAME_SHADOWING", "DEPRECATED_IDENTITY_EQUALS")
class CustomExpandableListAdapter(
context: Context,
expandableListTitle: ArrayList<String>,
expandableListDetail: HashMap<String,
MutableList<ToDoListResponse.TodaysTask>>)
: BaseExpandableListAdapter()
{
private val context: Context
private val expandableListTitle: ArrayList<String>
private val expandableListDetail: HashMap<String, MutableList<ToDoListResponse.TodaysTask>>
private lateinit var edtTitle: TextInputEditText
private lateinit var edtDes: TextInputEditText
private lateinit var dueDate: TextView
private lateinit var txtreminddate: TextView
private lateinit var createAt: String
private lateinit var taskId: String
private var ChildCount: String? = null
private lateinit var dialog: BottomSheetDialog
override fun getChild(listPosition: Int, expandedListPosition: Int): Any
{
return expandableListDetail[expandableListTitle[listPosition]]?.get(expandedListPosition)!!
}
override fun getChildId(listPosition: Int, expandedListPosition: Int): Long
{
return expandedListPosition.toLong()
}
@RequiresApi(Build.VERSION_CODES.O)
@SuppressLint("InflateParams", "SimpleDateFormat")
override fun getChildView(listPosition: Int, expandedListPosition: Int, isLastChild: Boolean, convertView: View?, parent: ViewGroup?): View
{
var convertView = convertView
if (convertView == null)
{
val layoutInflater = context.getSystemService(Context.LAYOUT_INFLATER_SERVICE) as LayoutInflater
convertView = layoutInflater.inflate(R.layout.list_item, null)
}
val expandedListTextView = convertView?.findViewById(R.id.expandedListItem) as TextView
val expandedItem = convertView.findViewById(R.id.expandedItem) as LinearLayout
val txtDelete = convertView.findViewById(R.id.delete) as FrameLayout
val unpin = convertView.findViewById(R.id.unpin) as FrameLayout
val pin = convertView.findViewById(R.id.pin) as FrameLayout
val complete = convertView.findViewById(R.id.complete) as FrameLayout
val mainPin = convertView.findViewById(R.id.mainPin) as ImageView
val getset = getChild(listPosition, expandedListPosition) as ToDoListResponse.TodaysTask
expandedListTextView.text = getset.title
createAt = getset.created_at
unpin.visibility = View.GONE
if (getset.is_pinned_task == "1")
{
mainPin.visibility = View.VISIBLE
unpin.visibility = View.VISIBLE
pin.visibility = View.GONE
}
else
{
mainPin.visibility = View.GONE
pin.visibility = View.VISIBLE
}
unpin.setOnClickListener {
pinnedtask(getset.task_id)
}
pin.setOnClickListener {
pinnedtask(getset.task_id)
}
complete.setOnClickListener {
markascomplete(getset.task_id)
}
txtDelete.setOnClickListener {
deleteTask(getset.task_id)
}
expandedItem.setOnClickListener {
openTaskDetails()
taskId = getset.task_id
edtTitle.setText(getset.title)
edtDes.setText(getset.description)
dueDate.visibility = View.VISIBLE
txtreminddate.visibility = View.VISIBLE
val dueDate1 = getset.due_date
val sdf = SimpleDateFormat("yyyy-MM-dd")
val date = Date(dueDate1.toLong() * 1000)
dueDate.text = sdf.format(date)
val remindDate = getset.remind_me
val sdf1 = SimpleDateFormat("yyyy-MM-dd")
val date1 = Date(remindDate.toLong() * 1000)
txtreminddate.text = sdf1.format(date1)
}
return convertView
}
private fun pinnedtask(taskId: String)
{
val retIn = ApiClient.client!!.create(ApiService::class.java)
retIn.pintask(taskId).enqueue(object : retrofit2.Callback<CommonResponse> {
override fun onResponse(call: Call<CommonResponse>, response: Response<CommonResponse>) {
showToast(response.body()?.message)
notifyDataSetChanged()
if (context is ToDoListActivity) {
context.tasklistAPI("1")
}
}
override fun onFailure(call: Call<CommonResponse>, t: Throwable) {
showToast("Shomwthing wents wrong")
}
})
}
private fun markascomplete(taskId: String)
{
val retIn = ApiClient.client!!.create(ApiService::class.java)
retIn.markcomplete(taskId).enqueue(object : retrofit2.Callback<CommonResponse> {
override fun onResponse(call: Call<CommonResponse>, response: Response<CommonResponse>) {
showToast(response.body()?.message)
notifyDataSetChanged()
if (context is ToDoListActivity) {
context.tasklistAPI("1")
}
}
override fun onFailure(call: Call<CommonResponse>, t: Throwable) {
showToast("Shomwthing wents wrong")
}
})
}
private fun deleteTask(taskId: String)
{
val retIn = ApiClient.client!!.create(ApiService::class.java)
retIn.deteletask(taskId).enqueue(object : retrofit2.Callback<CommonResponse> {
override fun onResponse(call: Call<CommonResponse>, response: Response<CommonResponse>) {
showToast(response.body()?.message)
notifyDataSetChanged()
if (context is ToDoListActivity) {
context.tasklistAPI("1")
}
}
override fun onFailure(call: Call<CommonResponse>, t: Throwable) {
showToast("Shomwthing wents wrong")
}
})
}
@RequiresApi(Build.VERSION_CODES.O)
@SuppressLint("InflateParams")
private fun openTaskDetails()
{
try
{
val modalbottomsheet = context.layoutInflater.inflate(R.layout.custom_view_todo, null)
dialog = BottomSheetDialog(context, R.style.DialogStyle)
dialog.setContentView(modalbottomsheet)
edtTitle = dialog.findViewById(R.id.edtTitle)!!
edtDes = dialog.findViewById(R.id.edtDes)!!
dueDate = dialog.findViewById(R.id.dueDate)!!
txtreminddate = dialog.findViewById(R.id.txtreminddate)!!
val imgDatePicker = dialog.findViewById<ImageView>(R.id.imgDatePicker)
val imgDatePickerReminder = dialog.findViewById<ImageView>(R.id.imgDatePickerReminder)
val button = dialog.findViewById<Button>(R.id.Button)
imgDatePicker?.setOnClickListener {
showDatePicker(context)
}
imgDatePickerReminder?.setOnClickListener {
showDatePickerForRemind(context)
}
button?.setOnClickListener {
updateTaskAPI()
}
dialog.show()
}
catch (e: Exception)
{
e.printStackTrace()
}
}
@RequiresApi(Build.VERSION_CODES.O)
private fun updateTaskAPI()
{
val l = LocalDate.parse(dueDate.text, DateTimeFormatter.ofPattern("yyyy-MM-dd"))
val dueDateTimestamp = l.atStartOfDay(ZoneId.systemDefault()).toInstant().epochSecond
Toast.makeText(context, dueDateTimestamp.toString(), Toast.LENGTH_SHORT).show()
val l1 = LocalDate.parse(txtreminddate.text, DateTimeFormatter.ofPattern("yyyy-MM-dd"))
val remindMeTimestamp = l1.atStartOfDay(ZoneId.systemDefault()).toInstant().epochSecond
Toast.makeText(context, remindMeTimestamp.toString(), Toast.LENGTH_SHORT).show()
val retIn = ApiClient.client!!.create(ApiService::class.java)
retIn.taskupdate(
createAt,
edtDes.text?.trim().toString(),
dueDateTimestamp.toString(),
remindMeTimestamp.toString(),
taskId, edtTitle.text?.trim().toString(),
"1").enqueue(object : retrofit2.Callback<CommonResponse>
{
override fun onResponse(call: Call<CommonResponse>, response: Response<CommonResponse>)
{
if (response.body()!!.success == 1)
{
dialog.dismiss()
showToast(response.body()?.message)
}
}
override fun onFailure(call: Call<CommonResponse>, t: Throwable)
{
showToast("Something not right, Please try again.")
}
}
)
}
@SuppressLint("InflateParams")
fun showToast(msg: String?)
{
try
{
val inflater = context.layoutInflater
val layout = inflater.inflate(R.layout.custom_toast, null)
val text = layout.findViewById<View>(R.id.text) as TextView
text.text = msg
val toast = Toast(context)
toast.duration = Toast.LENGTH_SHORT
toast.view = layout
if (toast.view.isShown)
{
toast.cancel()
}
else
{
toast.show()
}
}
catch (e: Exception)
{
e.printStackTrace()
}
}
private fun showDatePickerForRemind(context: Context)
{
val cal = Calendar.getInstance()
val dateSetListener =
DatePickerDialog.OnDateSetListener { _, year, monthOfYear, dayOfMonth ->
cal.set(Calendar.YEAR, year)
cal.set(Calendar.MONTH, monthOfYear)
cal.set(Calendar.DAY_OF_MONTH, dayOfMonth)
val myFormat = "yyyy-MM-dd" // mention the format you need
val sdf = SimpleDateFormat(myFormat, Locale.US)
txtreminddate.visibility = View.VISIBLE
txtreminddate.text = sdf.format(cal.time)
}
var datepicker: DatePickerDialog? = null
if (txtreminddate.text.isNotBlank())
{
try
{
val date: String = txtreminddate.text.trim().toString()
val datearr = date.split("-").toTypedArray()
val yearint = datearr[2].toInt()
val monthint = datearr[1].toInt()
val dateint = datearr[0].toInt()
datepicker = DatePickerDialog(
context,
dateSetListener,
dateint,
monthint - 1,
yearint
)
}
catch (e: Exception)
{
e.printStackTrace()
}
}
else
{
try
{
val calendar = Calendar.getInstance()
val dd = calendar[Calendar.DAY_OF_MONTH]
val mm = calendar[Calendar.MONTH]
val yy = calendar[Calendar.YEAR]
datepicker = DatePickerDialog(context, dateSetListener, dd, mm, yy)
}
catch (e: Exception)
{
e.printStackTrace()
}
}
datepicker!!.show()
}
private fun showDatePicker(context: Context)
{
val cal = Calendar.getInstance()
val dateSetListener =
DatePickerDialog.OnDateSetListener { _, year, monthOfYear, dayOfMonth ->
cal.set(Calendar.YEAR, year)
cal.set(Calendar.MONTH, monthOfYear)
cal.set(Calendar.DAY_OF_MONTH, dayOfMonth)
val myFormat = "yyyy-MM-dd" // mention the format you need
val sdf = SimpleDateFormat(myFormat, Locale.US)
dueDate.visibility = View.VISIBLE
dueDate.text = sdf.format(cal.time)
}
var datepicker: DatePickerDialog? = null
if (dueDate.text.isNotBlank())
{
try
{
val date: String = dueDate.text.toString()
val datearr = date.split("-").toTypedArray()
val dateint = datearr[0].toInt()
val monthint = datearr[1].toInt()
val yearint = datearr[2].toInt()
datepicker = DatePickerDialog(
context,
dateSetListener,
yearint,
monthint - 1,
dateint
)
}
catch (e: java.lang.Exception)
{
e.printStackTrace()
}
}
else
{
try
{
val calendar = Calendar.getInstance()
val yy = calendar[Calendar.YEAR]
val mm = calendar[Calendar.MONTH]
val dd = calendar[Calendar.DAY_OF_MONTH]
datepicker = DatePickerDialog(context, dateSetListener, yy, mm, dd)
}
catch (e: java.lang.Exception)
{
e.printStackTrace()
}
}
datepicker!!.show()
}
override fun getChildrenCount(listPosition: Int): Int
{
ChildCount = expandableListDetail[expandableListTitle[listPosition]]?.size.toString()
Log.e("TAG",ChildCount)
return expandableListDetail[expandableListTitle[listPosition]]?.size!!
}
override fun getGroup(listPosition: Int): Any
{
return expandableListTitle[listPosition]
}
override fun getGroupCount(): Int
{
return expandableListTitle.size
}
override fun getGroupId(listPosition: Int): Long
{
return listPosition.toLong()
}
@SuppressLint("InflateParams")
override fun getGroupView(listPosition: Int, isExpanded: Boolean, convertView: View?, parent: ViewGroup?): View
{
var convertView: View? = convertView
val listTitle = getGroup(listPosition) as String
if (convertView == null)
{
val layoutInflater = context.getSystemService(Context.LAYOUT_INFLATER_SERVICE) as LayoutInflater
convertView = layoutInflater.inflate(R.layout.list_group, null)
}
val listTitleTextView = convertView?.findViewById(R.id.listTitle) as TextView
val listCount = convertView.findViewById(R.id.listCount) as TextView
val arrowicon = convertView.findViewById(R.id.arrowicon) as ImageView
listTitleTextView.setTypeface(null, Typeface.BOLD)
listTitleTextView.text = listTitle
listCount.text = "($ChildCount)"
if (getChildrenCount(listPosition) === 0)
{
arrowicon.visibility = View.INVISIBLE
}
else
{
arrowicon.visibility = View.VISIBLE
arrowicon.setImageResource(if (isExpanded) R.drawable.ic_arrow_up else R.drawable.ic_arrow_down)
}
return convertView
}
override fun hasStableIds(): Boolean
{
return false
}
override fun isChildSelectable(listPosition: Int, expandedListPosition: Int): Boolean
{
return true
}
init
{
this.context = context
this.expandableListTitle = expandableListTitle
this.expandableListDetail = expandableListDetail
}
}

活动:-

fun tasklistAPI(userId: String)
{
if (isOnline())
{
llNoInternet.gone()
llLoading.visible()
apiService.todotasklist(userId).enqueue(object :
Callback<ToDoListResponse>
{
override fun onFailure(call: Call<ToDoListResponse>, t: Throwable)
{
llLoading.gone()
}
override fun onResponse(call: Call<ToDoListResponse>, response: Response<ToDoListResponse>)
{
if (response.isSuccessful)
{
if (response.body()!!.success == 1)
{
try
{
llLoading.gone()
expandableListDetail = HashMap()
val todaytask = response.body()!!.todays_task_list
expandableListTitle = ArrayList()
todaystitle = ArrayList()
todayslist = ArrayList()
Log.e("<>list", todaystitle.toString())
for (i in todaytask.indices)
{
todaystitle.add(todaytask[i])
}
val tommrowtask = response.body()!!.tomorows_task_list
val tommorowtitle: MutableList<ToDoListResponse.TodaysTask> = ArrayList()
for (i in tommrowtask.indices)
{
tommorowtitle.add(tommrowtask[i])
}
val upcomingtask = response.body()!!.upcomming_task_list
val upcomingtitle: MutableList<ToDoListResponse.TodaysTask> = ArrayList()
for (i in upcomingtask.indices)
{
upcomingtitle.add(upcomingtask[i])
}
expandableListTitle.add("Today's Task")
expandableListTitle.add("Tommorow's Task")
expandableListTitle.add("Upcoming Task")
expandableListDetail.put(expandableListTitle[0], todaystitle)
expandableListDetail.put(expandableListTitle[1], tommrowtask)
expandableListDetail.put(expandableListTitle[2], upcomingtask)
Log.e("task", expandableListTitle.get(0) + " = " + expandableListDetail.put(expandableListTitle.get(0), todaystitle))
Log.e("task", expandableListTitle.get(1) + " = " + expandableListDetail.put(expandableListTitle.get(1), tommrowtask))
Log.e("task", expandableListTitle.get(2) + " = " + expandableListDetail.put(expandableListTitle.get(2), upcomingtask))
expandableListAdapter = CustomExpandableListAdapter(activity, expandableListTitle, expandableListDetail)
expandableListView!!.setAdapter(expandableListAdapter)
}
catch (e: Exception)
{
e.printStackTrace()
}
}
}
else
{
llLoading.gone()
}
}
})
}
else
{
llNoInternet.visible()
}
}

下面的代码显示了如何将add数据添加到hashmap和可扩展列表视图中。正如你所看到的,有一个可扩展列表视图的哈希图,在adaoter中,我放了api respose的标题,但列表视图父级的标题是静态的,子级中的数据是动态的,所以你可以看到差异

您添加了很多代码,但我认为这是唯一一个对您的问题很重要的代码:-

expandableListTitle.add("Today's Task")
expandableListTitle.add("Tommorow's Task")
expandableListTitle.add("Upcoming Task")
expandableListDetail.put(expandableListTitle[0], todaystitle)
expandableListDetail.put(expandableListTitle[1], tommrowtask)
expandableListDetail.put(expandableListTitle[2], upcomingtask)
Log.e("task", expandableListTitle.get(0) + " = " + expandableListDetail.put(expandableListTitle.get(0), todaystitle))
Log.e("task", expandableListTitle.get(1) + " = " + expandableListDetail.put(expandableListTitle.get(1), tommrowtask))
Log.e("task", expandableListTitle.get(2) + " = " + expandableListDetail.put(expandableListTitle.get(2), upcomingtask))
expandableListAdapter = CustomExpandableListAdapter(activity, expandableListTitle, expandableListDetail)
expandableListView!!.setAdapter(expandableListAdapter)

因此,正如我从你在链接中添加的图像中所理解的那样,你需要在你的标题右侧显示子元素的数量。

你可以做的就是简单地添加列表中的元素总数,如下所示:-

expandableListTitle.add("Today's Task (${todaystitle.count()})") //.count() gives the total number of elements present in list 

它将添加标题为Today's Task (10)\ here 10 would be the number of elements present in your list。现在,您可以简单地以任何方式格式化

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