Complétion du fragment menu : afficher, créer et cliquer une fiche d’émargement.

app/src/main/java/com/example/palto/domain/Session.kt

@@ -5,5 +5,7 @@ import java.io.Serializable
  * Data class that captures tokens for logged in users retrieved from LoginRepository
  */
 data class Session(
-    val id: String
+    val id: Int,
+    val name: String,
+    var attendances: List<User>
 )

app/src/main/java/com/example/palto/ui/menu/MenuAdapter.kt

@@ -12,35 +12,39 @@ import com.example.palto.domain.Session
 /**
  * A [ListAdapter] that can display [Session] items.
  */
-class MenuAdapter :
+class MenuAdapter(private val onClick: (Session) -> Unit) :
     ListAdapter<Session, MenuAdapter.ViewHolder>(SessionDiffCallback) {
+    inner class ViewHolder(binding: FragmentMenuItemBinding) :
+            RecyclerView.ViewHolder(binding.root) {
+        private val sessionNameText: TextView = binding.sessionName
+        private var currentSession: Session? = null
+
+        init {
+            binding.root.setOnClickListener {
+                currentSession?.let {
+                    onClick(it)
+                }
+            }
+        }
+
+        fun bind(session: Session) {
+            currentSession = session
+            sessionNameText.text = session.name
+        }
+    }
 
     override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
-        return ViewHolder(
-            FragmentMenuItemBinding.inflate(
-                LayoutInflater.from(parent.context),
-                parent,
-                false
-            )
-        )
+        val binding = FragmentMenuItemBinding
+            .inflate(LayoutInflater.from(parent.context), parent, false)
+        return ViewHolder(binding)
     }
 
     override fun onBindViewHolder(holder: ViewHolder, position: Int) {
         val item = getItem(position)
-        holder.sessionId.text = item.id
+        holder.bind(item)
     }
 
-    inner class ViewHolder(
-        binding: FragmentMenuItemBinding
-    ) : RecyclerView.ViewHolder(binding.root) {
-
-        val sessionId: TextView = binding.sessionId
-        override fun toString(): String {
-            return super.toString() + " '" + sessionId.text + "'"
-        }
-    }
-
-    //override fun getItemCount(): Int = values.size
+    override fun getItemCount() = currentList.size
 }
 
 object SessionDiffCallback : DiffUtil.ItemCallback<Session>() {

app/src/main/java/com/example/palto/ui/menu/MenuFragment.kt

@@ -4,11 +4,15 @@ import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
+import androidx.core.os.bundleOf
 import androidx.fragment.app.Fragment
+import androidx.fragment.app.activityViewModels
 import androidx.navigation.fragment.findNavController
 import androidx.navigation.navGraphViewModels
 import com.example.palto.R
 import com.example.palto.databinding.FragmentMenuListBinding
+import com.example.palto.domain.Session
+import com.example.palto.ui.UserViewModel
 
 /**
  * A fragment representing a list of Sessions.
@@ -16,11 +20,13 @@ import com.example.palto.databinding.FragmentMenuListBinding
 class MenuFragment : Fragment() {
 
     private val menuViewModel: MenuViewModel by
-        navGraphViewModels(R.id.nav_graph)
+        navGraphViewModels(R.id.nav_graph) { MenuViewModel.Factory }
+
+    private val userViewModel: UserViewModel by
+        activityViewModels() { UserViewModel.Factory }
 
-    private var _binding: FragmentMenuListBinding? = null
     // This property is only valid between onCreateView and onDestroyView
-    private val binding get() = _binding!!
+    private lateinit var binding: FragmentMenuListBinding
 
     override fun onCreateView(
         inflater: LayoutInflater,
@@ -41,17 +47,25 @@ class MenuFragment : Fragment() {
         }
 
         // Display the list of sessions.
-        val adapter = MenuAdapter()
+
+        // Create a new MenuAdapter (list) with the given function when clicking an item.
+        val adapter = MenuAdapter { adapterOnClick(it) }
         binding.menuList.adapter = adapter
+        // Link the adapter with the session list in the menuViewMode.
         menuViewModel.sessions.observe(viewLifecycleOwner) {
             adapter.submitList(it)
         }
 
+        // Bind the add button.
         binding.createSession.setOnClickListener {
-            menuViewModel.createSession()
-            findNavController().navigate(R.id.action_menuFragment_to_sessionFragment)
+            navController.navigate(R.id.action_menuFragment_to_newSessionFragment)
         }
 
         return binding.root
     }
+
+    private fun adapterOnClick(session: Session) {
+        val bundle = bundleOf("session" to session.id)
+        findNavController().navigate(R.id.action_menuFragment_to_sessionFragment, bundle)
+    }
 }

app/src/main/java/com/example/palto/ui/menu/MenuViewModel.kt

@@ -4,18 +4,34 @@ import android.util.Log
 import androidx.lifecycle.LiveData
 import androidx.lifecycle.MutableLiveData
 import androidx.lifecycle.ViewModel
+import androidx.lifecycle.ViewModelProvider
+import com.example.palto.data.repository.TokenRepository
+import com.example.palto.data.repository.UserRepository
 import com.example.palto.domain.Session
+import com.example.palto.ui.UserViewModel
 
 class MenuViewModel() : ViewModel() {
 
     private var _sessions = MutableLiveData<List<Session>>(emptyList())
-    val sessions = _sessions as LiveData<List<Session>>
+    val sessions: LiveData<List<Session>> = _sessions
 
-    fun createSession() {
+    fun createSession(name: String) {
+        val list = _sessions.value ?: emptyList()
         val session = Session(
-            id = "aahh"
+            id = list.size,
+            name = name,
+            attendances = emptyList()
         )
-        _sessions.value = (_sessions.value ?: emptyList()) + session
-        Log.d("PALTO", "MenuViewModel: a session has been added into the list.")
+        _sessions.value = list + session
+        Log.d("Palto", "MenuViewModel: A session has been added into the list.")
+    }
+
+    companion object {
+
+        val Factory: ViewModelProvider.Factory = object : ViewModelProvider.Factory {
+            override fun <T : ViewModel> create(modelClass: Class<T>): T {
+                return MenuViewModel() as T
+            }
+        }
     }
 }

app/src/main/res/layout/fragment_menu_item.xml

@@ -4,11 +4,17 @@
     android:layout_height="wrap_content"
     android:orientation="horizontal">
 
-    <TextView
+    <!--<TextView
         android:id="@+id/session_id"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_margin="@dimen/text_margin"
-        android:textAppearance="?attr/textAppearanceListItem" />
+        android:textAppearance="?attr/textAppearanceListItem" />-->
+    <TextView
+        android:id="@+id/session_name"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_margin="16dp"
+        android:textAppearance="?attr/textAppearanceListItem"/>
 
 </LinearLayout>

app/src/main/res/layout/fragment_menu_list.xml

@@ -21,6 +21,7 @@
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_gravity="bottom|end"
+        android:layout_margin="16dp"
         android:clickable="true"
         android:contentDescription="@string/create_session"
         app:srcCompat="@android:drawable/ic_input_add" />

app/src/main/res/layout/fragment_new_session.xml

@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <EditText
+        android:id="@+id/new_session_name"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:ems="10"
+        android:hint="@string/new_session_name_hint"
+        android:inputType="text"
+        android:textSize="20sp"
+        app:layout_constraintBottom_toTopOf="@+id/new_session_create"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintHorizontal_bias="0.5"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+
+    <Button
+        android:id="@+id/new_session_create"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="@string/new_session_button_create"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintHorizontal_bias="0.5"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/new_session_name" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/navigation/nav_graph.xml

@@ -4,27 +4,37 @@
     xmlns:tools="http://schemas.android.com/tools"
     android:id="@+id/nav_graph"
     app:startDestination="@id/menuFragment">
-    <fragment
-        android:id="@+id/loginFragment"
-        android:name="com.example.palto.ui.login.LoginFragment"
-        android:label="fragment._login"
-        tools:layout="@layout/fragment_login" />
-    <fragment
-        android:id="@+id/sessionFragment"
-        android:name="com.example.palto.ui.session.SessionFragment"
-        android:label="fragment_session_list"
-        tools:layout="@layout/fragment_session_list" />
+
     <fragment
         android:id="@+id/menuFragment"
         android:name="com.example.palto.ui.menu.MenuFragment"
-        android:label="fragment_menu_list"
+        android:label="Menu Palto"
         tools:layout="@layout/fragment_menu_list" >
-        <action
-            android:id="@+id/action_menuFragment_to_loginFragment"
-            app:destination="@id/loginFragment" />
         <action
             android:id="@+id/action_menuFragment_to_sessionFragment"
             app:destination="@id/sessionFragment" />
+        <action
+            android:id="@+id/action_menuFragment_to_newSessionFragment"
+            app:destination="@id/newSessionFragment" />
     </fragment>
 
+    <fragment
+        android:id="@+id/loginFragment"
+        android:name="com.example.palto.ui.login.LoginFragment"
+        android:label="Connexion"
+        tools:layout="@layout/fragment_login" />
+
+    <fragment
+        android:id="@+id/newSessionFragment"
+        android:name="com.example.palto.ui.menu.new_session.NewSessionFragment"
+        android:label="Nouvelle fiche"
+        tools:layout="@layout/fragment_new_session"/>
+
+    <fragment
+        android:id="@+id/sessionFragment"
+        android:name="com.example.palto.ui.session.SessionFragment"
+        android:label="Fiche de présence"
+        tools:layout="@layout/fragment_session_list" />
+
+
 </navigation>

app/src/main/res/values/strings.xml

@@ -15,4 +15,8 @@
     <string name="help_message">Identifiants Invalides</string>
     <string name="create_session">Créer une session</string>
     <string name="create_card">Créer une présence</string>
+    <string name="nouvelle_fiche">Nouvelle Fiche</string>
+    <string name="new_session_name_hint">Nom de la fiche</string>
+    <string name="new_session_button_create">Créer</string>
+    <string name="menu_item_logout">Déconnexion</string>
 </resources>