snackbar validation réponse

app/src/main/java/fr/uparis/diamantkennel/memorisationapplication/MainActivity.kt

@@ -14,10 +14,13 @@ import androidx.compose.material3.CenterAlignedTopAppBar
 import androidx.compose.material3.ExperimentalMaterial3Api
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Scaffold
+import androidx.compose.material3.SnackbarHost
+import androidx.compose.material3.SnackbarHostState
 import androidx.compose.material3.Surface
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.getValue
+import androidx.compose.runtime.remember
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.tooling.preview.Preview
@@ -59,8 +62,10 @@ fun MainScreenActivityPreview() {
 @Composable
 fun MainScreen() {
     val navController = rememberNavController()
+    val snackbarHostState = remember { SnackbarHostState() }
 
-    Scaffold(topBar = { TopBar() }, bottomBar = { BottomBar(navController) }) { padding ->
+    Scaffold(topBar = { TopBar() }, bottomBar = { BottomBar(navController) },
+        snackbarHost = { SnackbarHost(snackbarHostState) }) { padding ->
         NavHost(
             navController = navController,
             startDestination = HOME,
@@ -79,7 +84,7 @@ fun MainScreen() {
                 it.arguments?.getString(PLAY_SET_ARG)?.let { idSet ->
                     PlayScreen(
                         padding,
-                        navController,
+                        snackbarHostState,
                         idSet.toInt()
                     )
                 }

app/src/main/java/fr/uparis/diamantkennel/memorisationapplication/PlayScreen.kt

@@ -1,6 +1,5 @@
 package fr.uparis.diamantkennel.memorisationapplication
 
-import android.util.Log
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.PaddingValues
@@ -10,14 +9,15 @@ import androidx.compose.foundation.layout.padding
 import androidx.compose.material3.Button
 import androidx.compose.material3.ExperimentalMaterial3Api
 import androidx.compose.material3.OutlinedTextField
+import androidx.compose.material3.SnackbarDuration
+import androidx.compose.material3.SnackbarHostState
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.getValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
-import androidx.compose.ui.platform.LocalContext
 import androidx.lifecycle.viewmodel.compose.viewModel
-import androidx.navigation.NavController
 import fr.uparis.diamantkennel.memorisationapplication.ui.AnswerType
 import fr.uparis.diamantkennel.memorisationapplication.ui.PlayViewModel
 
@@ -25,7 +25,7 @@ import fr.uparis.diamantkennel.memorisationapplication.ui.PlayViewModel
 @Composable
 fun PlayScreen(
     padding: PaddingValues,
-    navController: NavController,
+    snackbarHostState: SnackbarHostState,
     idSet: Int,
     model: PlayViewModel = viewModel()
 ) {
@@ -33,8 +33,6 @@ fun PlayScreen(
     model.setId.value = idSet
     model.updateQuestionList(idSet)
 
-    val context = LocalContext.current
-
     val question by model.currentQuestion
     if (question == null) {
         return
@@ -42,14 +40,18 @@ fun PlayScreen(
     val reponse by model.proposedAnswer
     val correction by model.evaluatedAnswer
 
-    if (correction == AnswerType.GOOD) {
-        Log.d("1312", "Bonne réponse !")
-        model.newQuestion()
-    }
-
-    if (correction == AnswerType.BAD) {
-        Log.d("1312", "Mauvaise réponse !")
-        model.reset()
+    val cpt by model.compteurSb
+    if (correction != null) {
+        LaunchedEffect(cpt) {
+            model.sbUpdate()
+            snackbarHostState.showSnackbar(
+                when (correction!!) {
+                    AnswerType.GOOD -> "Bonnne réponse !"
+                    AnswerType.BAD -> "Mauvaise réponse !"
+                }, duration = SnackbarDuration.Short
+            )
+            model.resetAfterSb()
+        }
     }
 
     Column(
@@ -64,7 +66,10 @@ fun PlayScreen(
         )
 
         Row(modifier = Modifier.fillMaxWidth(), horizontalArrangement = Arrangement.SpaceEvenly) {
-            Button(onClick = model::checkAnswer) {
+            Button(
+                enabled = reponse.isNotBlank() && correction == null,
+                onClick = model::checkAnswer
+            ) {
                 Text(text = "Répondre")
             }
 

app/src/main/java/fr/uparis/diamantkennel/memorisationapplication/ui/AnswerType.kt

@@ -1,5 +1,5 @@
 package fr.uparis.diamantkennel.memorisationapplication.ui
 
 enum class AnswerType {
-    NONE, GOOD, BAD
+    GOOD, BAD
 }

app/src/main/java/fr/uparis/diamantkennel/memorisationapplication/ui/PlayViewModel.kt

@@ -20,7 +20,9 @@ class PlayViewModel(application: Application) : AndroidViewModel(application) {
     private var index = mutableStateOf(0)
 
     var proposedAnswer = mutableStateOf("")
-    var evaluatedAnswer = mutableStateOf(AnswerType.NONE)
+    var evaluatedAnswer = mutableStateOf<AnswerType?>(null)
+
+    val compteurSb = mutableStateOf(0)
 
     fun updateQuestionList(setId: Int) {
         if (setId != initialId) {
@@ -32,9 +34,10 @@ class PlayViewModel(application: Application) : AndroidViewModel(application) {
     }
 
     private fun updateQuestion() {
-        viewModelScope.launch(Dispatchers.IO) {
+        viewModelScope.launch {
             questions.collect { questionList ->
                 if (index.value >= questionList.size) {
+                    /* Fin des questions */
                     index.value = 0
                 }
                 currentQuestion.value = questionList[index.value]
@@ -42,14 +45,18 @@ class PlayViewModel(application: Application) : AndroidViewModel(application) {
         }
     }
 
-    fun reset() {
+    private fun reset() {
         proposedAnswer.value = ""
-        evaluatedAnswer.value = AnswerType.NONE
     }
 
-    fun newQuestion() {
+    fun resetAfterSb() {
+        evaluatedAnswer.value = null
+        compteurSb.value++
+    }
+
+    private fun newQuestion() {
         reset()
-        index.value += 1
+        index.value++
         updateQuestion()
     }
 
@@ -57,6 +64,8 @@ class PlayViewModel(application: Application) : AndroidViewModel(application) {
         proposedAnswer.value = text
     }
 
+    /** Permet de calculer la similarité entre 2 string.
+     *  Renvoie un pourcentage entre 0 et 1. */
     private fun calcSimilarite(str1: String, str2: String): Float {
         val set1 = str1.lowercase().toSet()
         val set2 = str2.lowercase().toSet()
@@ -73,5 +82,10 @@ class PlayViewModel(application: Application) : AndroidViewModel(application) {
         }
     }
 
-
+    fun sbUpdate() {
+        when (evaluatedAnswer.value!!) {
+            AnswerType.GOOD -> newQuestion()
+            AnswerType.BAD -> reset()
+        }
+    }
 }