[ADD] View model basique pour la page de login

android/app/src/main/java/fr/iut/sciencequest/ViewModels/LoginViewModel.kt

@@ -0,0 +1,17 @@
+package fr.iut.sciencequest.ViewModels
+
+import androidx.lifecycle.ViewModel
+import fr.iut.sciencequest.ViewModels.UiStates.LoginUIState
+import kotlinx.coroutines.flow.MutableStateFlow
+
+class LoginViewModel: ViewModel() {
+    var uiState = MutableStateFlow(LoginUIState())
+
+    fun setPseudo(pseudo: String) {
+        uiState.value = LoginUIState(pseudo, uiState.value.mdp)
+    }
+
+    fun setMdp(mdp: String) {
+        uiState.value = LoginUIState(uiState.value.pseudo, mdp)
+    }
+}

android/app/src/main/java/fr/iut/sciencequest/ViewModels/UiStates/LoginUIState.kt

@@ -0,0 +1,6 @@
+package fr.iut.sciencequest.ViewModels.UiStates
+
+data class LoginUIState (
+    val pseudo: String = "Pseudo",
+    val mdp: String = "Mot de passe"
+)

android/app/src/main/java/fr/iut/sciencequest/navigation/NavHost.kt

@@ -24,7 +24,7 @@ fun NavHost(context: Context) {
     NavHost(
         modifier = Modifier.fillMaxSize(),
         navController = navController,
-        startDestination = "pendu"
+        startDestination = "login"
     ) {
         composable(route = "home") {
             HomeScreen(

android/app/src/main/java/fr/iut/sciencequest/view/Login.kt

@@ -13,6 +13,7 @@ import androidx.compose.material3.Scaffold
 import androidx.compose.material3.Text
 import androidx.compose.material3.TextField
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.collectAsState
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
@@ -27,44 +28,41 @@ import androidx.compose.ui.text.TextStyle
 import androidx.compose.ui.text.style.TextDecoration
 import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
+import androidx.lifecycle.viewmodel.compose.viewModel
 import fr.iut.sciencequest.R
+import fr.iut.sciencequest.ViewModels.LoginViewModel
 
 @Composable
-fun LoginScreen(goToAccount: () -> Unit, goToHome: () -> Unit) {
+fun LoginScreen(viewModel: LoginViewModel = viewModel(),
+                goToAccount: () -> Unit,
+                goToHome: () -> Unit) {
     Scaffold(
         topBar = {
             TopBar(goToAccount, goToHome, stringResource(id = R.string.connection))
         },
     ) { innerPadding ->
-        LoginContainer(Modifier.padding(innerPadding))
+        LoginContainer(viewModel, Modifier.padding(innerPadding))
     }
 }
 
 @Composable
-fun LoginContainer(modifier: Modifier) {
+fun LoginContainer(viewModel: LoginViewModel,
+                   modifier: Modifier) {
+    val state = viewModel.uiState.collectAsState()
     Column(
         modifier = modifier.fillMaxHeight(),
         horizontalAlignment = Alignment.CenterHorizontally,
         verticalArrangement = Arrangement.Center
     ) {
-        val defaultPseudo = stringResource(id = R.string.Pseudo)
-        var pseudo by remember {
-             mutableStateOf(defaultPseudo)
-        }
-        val defaultMdp = stringResource(id = R.string.mdp)
-        var mdp by remember {
-            mutableStateOf(defaultMdp)
-        }
-
         //Text(text = stringResource(id = R.string.connection))
-        TextField(value = pseudo ,
-            onValueChange = { pseudo = it },
+        TextField(value = state.value.pseudo,
+            onValueChange = { viewModel.setPseudo(it) },
             modifier = Modifier
                 .padding(20.dp)
-                .fillMaxWidth()
+                .fillMaxWidth(),
         )
-        TextField(value = mdp,
-            onValueChange = { mdp = it },
+        TextField(value = state.value.mdp,
+            onValueChange = { viewModel.setMdp(it) },
             modifier = Modifier
                 .padding(20.dp)
                 .fillMaxWidth()
@@ -82,7 +80,7 @@ fun LoginContainer(modifier: Modifier) {
                 textDecoration = TextDecoration.Underline,
                 color = colorResource(id = R.color.purple_200)
             ),
-            onClick = registerPopup()
+            onClick = { }/*TODO*/ //registerPopup()
         )
 
     }