Ajout de bouttons pour créer des éléments dans les listes Menu et Session

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

@@ -15,19 +15,6 @@ import com.example.palto.domain.Session
 class MenuAdapter :
     ListAdapter<Session, MenuAdapter.ViewHolder>(SessionDiffCallback) {
 
-        /*
-    class ViewHolder(binding: FragmentSessionItemBinding) :
-        RecyclerView.ViewHolder(binding.root) {
-
-        val idView: TextView = binding.itemNumber
-        val contentView: TextView = binding.content
-
-        override fun toString(): String {
-            return super.toString() + " '" + contentView.text + "'"
-        }
-    }
-         */
-
     override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
         return ViewHolder(
             FragmentMenuItemBinding.inflate(
@@ -40,22 +27,20 @@ class MenuAdapter :
 
     override fun onBindViewHolder(holder: ViewHolder, position: Int) {
         val item = getItem(position)
-        holder.idView.text = position.toString()
+        holder.sessionId.text = item.id
-        holder.contentView.text = item.id
     }
 
-    //override fun getItemCount(): Int = values.size
-
     inner class ViewHolder(
         binding: FragmentMenuItemBinding
     ) : RecyclerView.ViewHolder(binding.root) {
 
-        val idView: TextView = binding.itemNumber
+        val sessionId: TextView = binding.sessionId
-        val contentView: TextView = binding.content
         override fun toString(): String {
-            return super.toString() + " '" + idView.text + contentView.text + "'"
+            return super.toString() + " '" + sessionId.text + "'"
         }
     }
+
+    //override fun getItemCount(): Int = values.size
 }
 
 object SessionDiffCallback : DiffUtil.ItemCallback<Session>() {

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

@@ -1,21 +1,22 @@
 package com.example.palto.ui.menu
 
 import android.os.Bundle
-import android.util.Log
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import androidx.fragment.app.Fragment
-import androidx.fragment.app.viewModels
+import androidx.navigation.fragment.findNavController
+import androidx.navigation.navGraphViewModels
+import com.example.palto.R
 import com.example.palto.databinding.FragmentMenuListBinding
-import com.example.palto.databinding.FragmentSessionListBinding
 
 /**
  * A fragment representing a list of Sessions.
  */
 class MenuFragment : Fragment() {
 
-    private val menuViewModel: MenuViewModel by viewModels()
+    private val menuViewModel: MenuViewModel by
+        navGraphViewModels(R.id.nav_graph)
 
     private var _binding: FragmentMenuListBinding? = null
     // This property is only valid between onCreateView and onDestroyView
@@ -29,17 +30,16 @@ class MenuFragment : Fragment() {
         _binding = FragmentMenuListBinding.inflate(inflater, container, false)
 
         val adapter = MenuAdapter()
-        binding.menuList.adapter = MenuAdapter()
+        binding.menuList.adapter = adapter
         menuViewModel.sessions.observe(viewLifecycleOwner) {
-            Log.d("PALTO", "A session has been created")
             adapter.submitList(it)
         }
 
+        binding.createSession.setOnClickListener {
+            menuViewModel.createSession()
+            findNavController().navigate(R.id.action_menuFragment_to_sessionFragment)
+        }
+
         return binding.root
     }
-
-    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
-        super.onViewCreated(view, savedInstanceState)
-        menuViewModel.createSession()
-    }
 }

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

@@ -4,18 +4,18 @@ import android.util.Log
 import androidx.lifecycle.LiveData
 import androidx.lifecycle.MutableLiveData
 import androidx.lifecycle.ViewModel
-import com.example.palto.data.repository.LoginRepository
 import com.example.palto.domain.Session
 
 class MenuViewModel() : ViewModel() {
 
     private var _sessions = MutableLiveData<List<Session>>(emptyList())
-    val sessions: LiveData<List<Session>> = _sessions
+    val sessions = _sessions as LiveData<List<Session>>
 
     fun createSession() {
         val session = Session(
             id = "aahh"
         )
         _sessions.value = (_sessions.value ?: emptyList()) + session
+        Log.d("PALTO", "MenuViewModel: a session has been added into the list.")
     }
 }

app/src/main/java/com/example/palto/ui/session/SessionAdapter.kt

@@ -29,7 +29,6 @@ class SessionAdapter :
     override fun onBindViewHolder(holder: ViewHolder, position: Int) {
         val item = getItem(position)
         holder.cardId.text = item.uid.toHexString()
-        //holder.contentView.text = item.content
     }
 
     inner class ViewHolder(

app/src/main/java/com/example/palto/ui/session/SessionFragment.kt

@@ -41,16 +41,19 @@ class SessionFragment : Fragment() {
         val adapter = SessionAdapter()
         binding.sessionList.adapter = adapter
         sessionViewModel.cards.observe(viewLifecycleOwner) {
-            Log.d("NFC", "A card has been had to the list")
             adapter.submitList(it)
         }
 
         // Set the listener for a new NFC tag.
         nfcViewModel.tag.observe(viewLifecycleOwner) {
-            Log.d("NFC", "tag observer has been notified")
+            Log.d("NFC", "The tag observers has been notified.")
             sessionViewModel.insertCard(it)
         }
 
+        binding.createCard.setOnClickListener {
+            //sessionViewModel.
+        }
+
         return binding.root
     }
 }

app/src/main/java/com/example/palto/ui/session/SessionViewModel.kt

@@ -16,7 +16,7 @@ class SessionViewModel(
     private val attendanceRepository: AttendanceRepository
 ) : ViewModel() {
 
-    private val _cards: MutableLiveData<List<Card>> = MutableLiveData(emptyList())
+    private val _cards = MutableLiveData<List<Card>>(emptyList())
     val cards = _cards as LiveData<List<Card>>
 
     fun insertCard(tag: Tag) {
@@ -27,7 +27,7 @@ class SessionViewModel(
             "tmp"
         )
         _cards.value = (_cards.value ?: emptyList()) + card
-        Log.d("NFC", "view model: A card has been had to the list")
+        Log.d("PALTO", "SessionViewModel: a card has been added into the list.")
     }
 
     /**

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

@@ -5,16 +5,10 @@
     android:orientation="horizontal">
 
     <TextView
-        android:id="@+id/item_number"
+        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" />
 
-    <TextView
-        android:id="@+id/content"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_margin="@dimen/text_margin"
-        android:textAppearance="?attr/textAppearanceListItem" />
 </LinearLayout>

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

@@ -1,7 +1,11 @@
 <?xml version="1.0" encoding="utf-8"?>
-<androidx.recyclerview.widget.RecyclerView xmlns:android="http://schemas.android.com/apk/res/android"
+<FrameLayout 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">
+
+    <androidx.recyclerview.widget.RecyclerView
         android:id="@+id/menu_list"
         android:name="com.example.palto.ui.menu.menuFragment"
         android:layout_width="match_parent"
@@ -11,3 +15,14 @@
         app:layoutManager="LinearLayoutManager"
         tools:context=".ui.menu.MenuFragment"
         tools:listitem="@layout/fragment_menu_item" />
+
+    <com.google.android.material.floatingactionbutton.FloatingActionButton
+        android:id="@+id/create_session"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_gravity="bottom|end"
+        android:clickable="true"
+        android:contentDescription="@string/create_session"
+        app:srcCompat="@android:drawable/ic_input_add" />
+
+</FrameLayout>

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

@@ -1,7 +1,11 @@
 <?xml version="1.0" encoding="utf-8"?>
-<androidx.recyclerview.widget.RecyclerView xmlns:android="http://schemas.android.com/apk/res/android"
+<FrameLayout 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">
+
+    <androidx.recyclerview.widget.RecyclerView
         android:id="@+id/session_list"
         android:name="com.example.palto.ui.session.sessionFragment"
         android:layout_width="match_parent"
@@ -11,3 +15,14 @@
         app:layoutManager="LinearLayoutManager"
         tools:context=".ui.session.SessionFragment"
         tools:listitem="@layout/fragment_session_item" />
+
+    <com.google.android.material.floatingactionbutton.FloatingActionButton
+        android:id="@+id/create_card"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_gravity="bottom|end"
+        android:clickable="true"
+        android:contentDescription="@string/create_card"
+        app:srcCompat="@android:drawable/ic_input_add" />
+
+</FrameLayout>

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

@@ -12,4 +12,6 @@
     <string name="invalid_password">Mot de passe invalide</string>
     <string name="login_failed">"Erreur de connexion !"</string>
     <string name="help_message">Identifiants Invalides</string>
+    <string name="create_session">Créer une session</string>
+    <string name="create_card">Créer une présence</string>
 </resources>