Correction TP 3

app/src/main/AndroidManifest.xml

@@ -17,9 +17,15 @@
         tools:targetApi="31" >
         <activity
             android:name=".article.ListArticleActivity"
-            android:exported="false"
+            android:exported="true"
             android:label="@string/title_activity_list_article"
-            android:theme="@style/Theme.TpFilRouge" />
+            android:theme="@style/Theme.TpFilRouge">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
         <activity
             android:name=".auth.ResetPasswordActivity"
             android:exported="false"
@@ -35,11 +41,6 @@
             android:exported="true"
             android:label="@string/app_name"
             android:theme="@style/Theme.TpFilRouge" >
-            <intent-filter>
-                <action android:name="android.intent.action.MAIN" />
-
-                <category android:name="android.intent.category.LAUNCHER" />
-            </intent-filter>
         </activity>
     </application>
 

app/src/main/java/com/example/tpfilrouge/article/ListArticleActivity.kt

@@ -15,7 +15,13 @@ import androidx.compose.foundation.lazy.items
 import androidx.compose.material3.CardDefaults
 import androidx.compose.material3.ElevatedCard
 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
+import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.Color
@@ -29,25 +35,48 @@ import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
 import coil.compose.AsyncImage
 import com.example.tpfilrouge.R
+import com.example.tpfilrouge.ui.theme.EniButton
 import com.example.tpfilrouge.ui.theme.EniPage
+import com.example.tpfilrouge.ui.theme.EniTextField
 
 class ListArticleActivity : ComponentActivity() {
+
+    // Instancier le view model
+    var viewModel = ListArticleViewModel();
+
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         enableEdgeToEdge()
         setContent {
-            ListArticleActivityPage()
+            ListArticleActivityPage(viewModel)
         }
     }
 }
 
 @Composable
-fun ListArticleActivityPage() {
-    var articles = listOf(
-      Article("Teletubies", "Meilleur série du monde", "https://avatar.iran.liara.run/public"),
-      Article("Velocipastor", "Meilleur film du monde, gros budget", "https://avatar.iran.liara.run/public"),
-      Article("Photo mouton béret paille ?", "Pourquoi", "https://avatar.iran.liara.run/public")
-    );
+fun ArticleForm(viewModel: ListArticleViewModel){
+    var titleFieldState by remember { mutableStateOf("Un article") }
+    var descFieldState by remember { mutableStateOf("Une description") }
+
+    Column {
+        EniTextField(label = "Saisir un Email", value = titleFieldState,
+            onValueChange = { newValue -> titleFieldState = newValue })
+        EniTextField(label = "Saisir une Description", value = descFieldState,
+            onValueChange = { newValue -> descFieldState = newValue })
+        EniButton("Ajouter") {
+            // Instancer un article avec les infos de la saisie
+            val newArticle = Article(titleFieldState, descFieldState,
+                "https://avatar.iran.liara.run/public");
+            // Envoyer l'article via une méthode view model
+            viewModel.addArticle(newArticle)
+        }
+    }
+}
+
+@Composable
+fun ListArticleActivityPage(viewModel: ListArticleViewModel) {
+    // Ecouter les changements de la liste d'article dans le ViewModel
+    val articlesState by viewModel.articles.collectAsState();
 
     EniPage {
         Column(
@@ -58,8 +87,9 @@ fun ListArticleActivityPage() {
                 modifier = Modifier.fillMaxWidth(),
                 textAlign = TextAlign.Center,
                 style = TextStyle(color = Color.White, fontSize = 28.sp))
+            ArticleForm(viewModel)
             LazyColumn {
-                items(articles) { article ->
+                items(articlesState) { article ->
                     ElevatedCard(
                         elevation = CardDefaults.cardElevation(defaultElevation = 6.dp),
                         modifier = Modifier.fillMaxWidth().padding(vertical = 14.dp)
@@ -89,5 +119,5 @@ fun ListArticleActivityPage() {
 )
 @Composable
 fun ListArticleActivityPreview() {
-    ListArticleActivityPage()
+    ListArticleActivityPage(ListArticleViewModel())
 }

app/src/main/java/com/example/tpfilrouge/article/ListArticleViewModel.kt

@@ -0,0 +1,18 @@
+package com.example.tpfilrouge.article
+
+import androidx.lifecycle.ViewModel
+import kotlinx.coroutines.flow.MutableStateFlow
+
+class ListArticleViewModel : ViewModel() {
+
+    var articles = MutableStateFlow(listOf(
+        Article("Teletubies", "Meilleur série du monde", "https://avatar.iran.liara.run/public"),
+        Article("Velocipastor", "Meilleur film du monde, gros budget", "https://avatar.iran.liara.run/public"),
+        Article("Photo mouton béret paille ?", "Pourquoi", "https://avatar.iran.liara.run/public")
+    ));
+
+    fun addArticle(article: Article){
+        articles.value = articles.value + article;
+    }
+
+}

app/src/main/java/com/example/tpfilrouge/ui/theme/AppTheme.kt

@@ -73,11 +73,15 @@ fun EniButton(label: String, onClick: () -> Unit){
 }
 
 @Composable
-fun EniTextField(label : String){
-    TextField(value = "", onValueChange = {}, modifier = Modifier.fillMaxWidth().padding(vertical = 5.dp),
+fun EniTextField(label : String, value: String = "", onValueChange: (String) -> Unit = {}){
+    TextField(value = value, onValueChange = onValueChange,
+        modifier = Modifier.fillMaxWidth().padding(vertical = 5.dp),
         placeholder = { HintText(label) },
         colors = TextFieldDefaults.colors(
+            unfocusedTextColor = Color(0xDDFFFFFF),
+            focusedTextColor = Color.White,
             unfocusedContainerColor = Color(0x44000000),
+            focusedContainerColor = Color(0x99000000),
             unfocusedIndicatorColor = Color.Transparent,
             focusedIndicatorColor = Color.Transparent
         ),