fix: paging fixed

app/src/main/java/ru/myitschool/work/ui/admin/search/AdminViewModel.kt

@@ -1,14 +1,14 @@
 package ru.myitschool.work.ui.admin.search
 
+import androidx.lifecycle.LiveData
+import androidx.lifecycle.MutableLiveData
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.ViewModelProvider
 import androidx.lifecycle.viewModelScope
 import androidx.lifecycle.viewmodel.CreationExtras
 import androidx.paging.Pager
 import androidx.paging.PagingConfig
-import androidx.paging.PagingData
 import androidx.paging.cachedIn
-import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.asStateFlow
 import kotlinx.coroutines.launch
@@ -38,17 +38,18 @@ class AdminViewModel(
     private val _state = MutableStateFlow<State>(State.Waiting)
     val state = _state.asStateFlow()
 
-//    private var _listState: Flow<PagingData<PassEntity>>? = null
-//    val listState: Flow<PagingData<PassEntity>> get() = _listState!!
+    private val _listState = MutableLiveData<Pager<Int, PassEntity>>()
+    val listState = _listState.value?.flow?.cachedIn(viewModelScope)
 
-    private var currentLogin: String = "pivanov"
+    private val _currentLogin = MutableLiveData<String>()
+    private val currentLogin: LiveData<String> get() = _currentLogin
 
     fun onFind(login: String) {
         viewModelScope.launch {
             _state.emit(State.Loading)
             getUserByLoginUseCase(login).fold(
                 onSuccess = { data ->
-                    currentLogin = login
+                    _currentLogin.postValue(login)
                     _state.emit(State.Show(data))
                     setUpPager(login)
                 },
@@ -64,7 +65,7 @@ class AdminViewModel(
     private fun updateState() {
         viewModelScope.launch {
             _state.emit(State.Loading)
-            getUserByLoginUseCase(currentLogin!!).fold(
+            getUserByLoginUseCase(currentLogin.value!!).fold(
                 onSuccess = { _state.emit(State.Show(it)) },
                 onFailure = { _state.emit(State.Error(it.message.toString())) }
             )
@@ -72,27 +73,26 @@ class AdminViewModel(
     }
 
     private fun setUpPager(login: String) {
-//        _listState = Pager(
-//            config = PagingConfig(
-//                pageSize = 10,
-//                enablePlaceholders = false,
-//                maxSize = 50
-//            )
-//        ) {
-//            UsersPassesPagingSource(getUsersPassesUseCase::invoke, login)
-//        }.flow
-//            .cachedIn(viewModelScope)
+        _listState.value = Pager(
+            config = PagingConfig(
+                pageSize = 10,
+                enablePlaceholders = false,
+                maxSize = 50
+            )
+        ) {
+            UsersPassesPagingSource(getUsersPassesUseCase::invoke, login)
+        }
     }
 
     fun onBlock() {
         viewModelScope.launch {
-            blockUserUseCase(currentLogin!!)
+            blockUserUseCase(currentLogin.value!!)
         }
     }
 
     fun unblock() {
         viewModelScope.launch {
-            unBlockUserUseCase(currentLogin!!)
+            unBlockUserUseCase(currentLogin.value!!)
         }
     }
 

app/src/main/java/ru/myitschool/work/ui/admin/view/ViewUserAsAdminFragment.kt

@@ -27,6 +27,9 @@ class ViewUserAsAdminFragment : Fragment(R.layout.fragment_user) {
         binding.findUser.visibleOrGone(false)
         binding.logout.visibleOrGone(false)
 
+        val adapter = PassesListAdapter()
+        binding.passes.adapter = adapter
+
         viewModel.state.collectWithLifecycle(this) { state ->
             binding.refresh.isRefreshing = state is AdminViewModel.State.Loading
             binding.content.visibleOrGone(state is AdminViewModel.State.Show)
@@ -48,23 +51,23 @@ class ViewUserAsAdminFragment : Fragment(R.layout.fragment_user) {
             }
         }
 
-//        viewModel.listState.collectWithLifecycle(this) { listState ->
-//            adapter.submitData(listState)
-//        }
+        viewModel.listState?.collectWithLifecycle(this) { listState ->
+            adapter.submitData(listState)
+        }
 
-//        adapter.loadStateFlow.collectWithLifecycle(this) { data ->
-//            val dataState = data.refresh
-//            binding.refresh.isRefreshing = dataState is LoadState.Loading
-//            binding.error.visibleOrGone(dataState is LoadState.Error)
-//
-//            if (dataState is LoadState.Error) {
-//                binding.error.text = dataState.error.toString()
-//            }
-//        }
+        adapter.loadStateFlow.collectWithLifecycle(this) { data ->
+            val dataState = data.refresh
+            binding.refresh.isRefreshing = dataState is LoadState.Loading
+            binding.error.visibleOrGone(dataState is LoadState.Error)
+
+            if (dataState is LoadState.Error) {
+                binding.error.text = dataState.error.toString()
+            }
+        }
 
         binding.refresh.setOnRefreshListener {
             viewModel.onRefresh()
-//            adapter.refresh()
+            adapter.refresh()
         }
 
 

app/src/main/java/ru/myitschool/work/ui/profile/PassesListAdapter.kt

@@ -1,17 +1,15 @@
 package ru.myitschool.work.ui.profile
 
-import android.util.Log
 import android.view.LayoutInflater
 import android.view.ViewGroup
 import androidx.paging.PagingDataAdapter
 import androidx.recyclerview.widget.DiffUtil
-import androidx.recyclerview.widget.ListAdapter
 import androidx.recyclerview.widget.RecyclerView
 import ru.myitschool.work.databinding.PassItemBinding
 import ru.myitschool.work.domain.entities.PassEntity
 
-class PassesListAdapter:
-    ListAdapter<PassEntity, PassesListAdapter.ViewHolder>(CenterDiff) {
+class PassesListAdapter :
+    PagingDataAdapter<PassEntity, PassesListAdapter.ViewHolder>(CenterDiff) {
 
     class ViewHolder(
         private val binding: PassItemBinding,
@@ -40,6 +38,12 @@ class PassesListAdapter:
     }
 
     override fun onBindViewHolder(holder: ViewHolder, position: Int) {
-        holder.bind(getItem(position))
+        holder.bind(
+            getItem(position) ?: PassEntity(
+                type = "Loading...",
+                name = "Loading...",
+                time = "Loading..."
+            )
+        )
     }
 }

app/src/main/java/ru/myitschool/work/ui/profile/UserFragment.kt

@@ -7,6 +7,7 @@ import androidx.appcompat.app.AlertDialog
 import androidx.fragment.app.Fragment
 import androidx.fragment.app.viewModels
 import androidx.navigation.fragment.findNavController
+import androidx.paging.LoadState
 import com.squareup.picasso.Picasso
 import ru.myitschool.work.R
 import ru.myitschool.work.databinding.FragmentUserBinding
@@ -36,20 +37,34 @@ class UserFragment : Fragment(R.layout.fragment_user) {
                 is UserViewModel.State.Loading -> Unit
                 is UserViewModel.State.Show -> {
                     val user = state.userEntity
-                    adapter.submitList(state.passes)
                     binding.scan.visibleOrGone(!user.isCardBlocked)
                     binding.findUser.visibleOrGone(user.isAdmin)
                     binding.fullname.text = user.name
                     binding.position.text = user.position
                     binding.lastEntry.text = user.lastVisit
                     Picasso.get().load(user.photoUrl).into(binding.photo)
-
                 }
             }
         }
 
+        viewModel.listState.collectWithLifecycle(this) { listState ->
+            adapter.submitData(listState)
+        }
+
+        adapter.loadStateFlow.collectWithLifecycle(this) { data ->
+            Log.d("info", data.refresh.toString())
+            val dataState = data.refresh
+            binding.refresh.isRefreshing = dataState is LoadState.Loading
+            binding.error.visibleOrGone(dataState is LoadState.Error)
+
+            if (dataState is LoadState.Error) {
+                binding.error.text = dataState.error.toString()
+            }
+        }
+
         binding.refresh.setOnRefreshListener {
             viewModel.onRefresh()
+            adapter.refresh()
         }
 
         binding.logout.setOnClickListener {