parent
1dd386c3d6
commit
35462dfe00
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package fr.uca.iut.clfreville2.teaiswarm.fragment
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import android.os.Bundle
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import android.view.View
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import androidx.fragment.app.Fragment
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import androidx.fragment.app.viewModels
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import androidx.lifecycle.ViewModel
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import androidx.lifecycle.ViewModelProvider
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import androidx.lifecycle.lifecycleScope
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import androidx.lifecycle.viewModelScope
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import androidx.paging.*
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import androidx.recyclerview.widget.LinearLayoutManager
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import androidx.recyclerview.widget.RecyclerView
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import fr.uca.iut.clfreville2.teaiswarm.R
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import fr.uca.iut.clfreville2.teaiswarm.adapter.RepositoryListAdapter
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import fr.uca.iut.clfreville2.teaiswarm.model.Repository
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import fr.uca.iut.clfreville2.teaiswarm.network.GiteaService
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import fr.uca.iut.clfreville2.teaiswarm.network.RepositoryService
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import kotlinx.coroutines.flow.collectLatest
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import kotlinx.coroutines.launch
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import retrofit2.HttpException
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import java.io.IOException
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class RepositoryListFragment(private val username: String, private val onClick: (Repository) -> Unit) : Fragment(R.layout.repository_list) {
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private val service = GiteaService()
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override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
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super.onViewCreated(view, savedInstanceState)
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updateRepositories()
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}
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private fun updateRepositories() {
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val viewModel by viewModels<RepositoryViewModel>(
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factoryProducer = {
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RepositoryViewModelFactory(
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service,
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username
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)
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}
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)
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val pagingAdapter =
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RepositoryListAdapter(RepositoryListAdapter.RepositoryComparator, onClick)
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val recyclerView = requireView().findViewById<RecyclerView>(R.id.repositories_view)
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recyclerView.adapter = pagingAdapter
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recyclerView.layoutManager = LinearLayoutManager(requireContext())
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viewLifecycleOwner.lifecycleScope.launch {
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viewModel.flow.collectLatest { pagingData ->
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pagingAdapter.submitData(pagingData)
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}
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}
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}
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class RepositorySource(
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private val service: RepositoryService,
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private val username: String
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) : PagingSource<Int, Repository>() {
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override suspend fun load(params: LoadParams<Int>): LoadResult<Int, Repository> =
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try {
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val nextPageNumber = params.key ?: 1
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val response = service.listActiveRepositories(username, nextPageNumber)
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LoadResult.Page(
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data = response,
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prevKey = nextPageNumber - 1,
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nextKey = nextPageNumber + 1
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)
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} catch (e: IOException) {
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LoadResult.Error(e)
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} catch (e: HttpException) {
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LoadResult.Error(e)
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}
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override fun getRefreshKey(state: PagingState<Int, Repository>): Int? =
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state.anchorPosition?.let { anchorPosition ->
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val anchorPage = state.closestPageToPosition(anchorPosition)
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anchorPage?.prevKey?.plus(1) ?: anchorPage?.nextKey?.minus(1)
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}
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}
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class RepositoryViewModel(
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private val service: RepositoryService,
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private val username: String
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) : ViewModel() {
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val flow = Pager(
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PagingConfig(pageSize = 10, enablePlaceholders = true)
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) {
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RepositorySource(service, username)
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}.flow.cachedIn(viewModelScope)
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}
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class RepositoryViewModelFactory(
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private val service: RepositoryService,
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private val username: String
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) : ViewModelProvider.Factory {
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override fun <T : ViewModel> create(modelClass: Class<T>): T {
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if (modelClass.isAssignableFrom(RepositoryViewModel::class.java)) {
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@Suppress("UNCHECKED_CAST")
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return RepositoryViewModel(service, username) as T
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}
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throw IllegalArgumentException("Unknown ViewModel class")
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}
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}
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}
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@ -1,32 +1,13 @@
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<?xml version="1.0" encoding="utf-8"?>
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<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
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<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
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xmlns:app="http://schemas.android.com/apk/res-auto"
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xmlns:tools="http://schemas.android.com/tools"
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android:layout_width="match_parent"
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android:layout_height="match_parent"
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tools:context=".MainActivity">
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<androidx.recyclerview.widget.RecyclerView
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android:id="@+id/repositories_view"
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<androidx.fragment.app.FragmentContainerView
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android:layout_width="match_parent"
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android:layout_height="match_parent"
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app:layoutManager="LinearLayoutManager"/>
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<LinearLayout
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android:layout_width="wrap_content"
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android:layout_height="wrap_content"
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app:layout_constraintBottom_toBottomOf="parent"
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app:layout_constraintEnd_toEndOf="parent"
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app:layout_constraintStart_toStartOf="parent">
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<Button
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android:layout_width="wrap_content"
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android:layout_height="wrap_content"
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android:id="@+id/previous_repository_list"
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android:text="@string/previous" />
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<Button
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android:layout_width="wrap_content"
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android:layout_height="wrap_content"
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android:id="@+id/next_repository_list"
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android:text="@string/next" />
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</LinearLayout>
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</androidx.constraintlayout.widget.ConstraintLayout>
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android:id="@+id/fragment_container_view" />
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</LinearLayout>
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@ -0,0 +1,9 @@
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<?xml version="1.0" encoding="utf-8"?>
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<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
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android:layout_width="match_parent"
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android:layout_height="match_parent">
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<androidx.recyclerview.widget.RecyclerView
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android:id="@+id/repositories_view"
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android:layout_width="match_parent"
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android:layout_height="match_parent" />
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</androidx.constraintlayout.widget.ConstraintLayout>
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Reference in new issue