trabalho

app/src/main/java/com/example/api/MainActivity.kt

@@ -0,0 +1,87 @@
+package com.example.api
+
+import android.os.Bundle
+import androidx.activity.ComponentActivity
+import androidx.activity.compose.setContent
+import androidx.activity.enableEdgeToEdge
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.lazy.items
+import androidx.compose.material3.Button
+import androidx.compose.material3.CircularProgressIndicator
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.Scaffold
+import androidx.compose.material3.Text
+import androidx.compose.material3.TopAppBar
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.collectAsState
+import androidx.compose.runtime.getValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.unit.dp
+import androidx.lifecycle.viewmodel.compose.viewModel
+import com.example.api.ui.components.CharacterItem
+import com.example.api.ui.theme.ApiTheme
+import com.example.api.viewmodel.CharacterViewModel
+
+class MainActivity : ComponentActivity() {
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        enableEdgeToEdge()
+        setContent {
+            ApiTheme {
+                CharacterScreen()
+            }
+        }
+    }
+}
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+fun CharacterScreen(viewModel: CharacterViewModel = viewModel()) {
+    val characters by viewModel.characters.collectAsState()
+    val isLoading by viewModel.isLoading.collectAsState()
+    val error by viewModel.error.collectAsState()
+
+    Scaffold(
+        topBar = {
+            TopAppBar(title = { Text("Rick and Morty Characters") })
+        }
+    ) { innerPadding ->
+        Box(
+            modifier = Modifier
+                .fillMaxSize()
+                .padding(innerPadding)
+        ) {
+            when {
+                isLoading -> {
+                    CircularProgressIndicator(modifier = Modifier.align(Alignment.Center))
+                }
+                error != null -> {
+                    Column(
+                        modifier = Modifier.align(Alignment.Center),
+                        horizontalAlignment = Alignment.CenterHorizontally
+                    ) {
+                        Text(text = error ?: "Erro desconhecido")
+                        Spacer(modifier = Modifier.height(8.dp))
+                        Button(onClick = { viewModel.fetchCharacters() }) {
+                            Text("Tentar novamente")
+                        }
+                    }
+                }
+                else -> {
+                    LazyColumn {
+                        items(characters) { character ->
+                            CharacterItem(character = character)
+                        }
+                    }
+                }
+            }
+        }
+    }
+}