trabalho

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

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+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)
+                        }
+                    }
+                }
+            }
+        }
+    }
+}

app/src/main/java/com/example/api/model/Character.kt

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+package com.example.api.model
+
+import com.google.gson.annotations.SerializedName
+
+data class CharacterResponse(
+    val results: List<Character>
+)
+
+data class Character(
+    val id: Int,
+    val name: String,
+    val status: String,
+    val species: String,
+    val image: String,
+    val location: Location
+)
+
+data class Location(
+    val name: String
+)

app/src/main/java/com/example/api/network/RetrofitClient.kt

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+package com.example.api.network
+
+import retrofit2.Retrofit
+import retrofit2.converter.gson.GsonConverterFactory
+
+object RetrofitClient {
+    private const val BASE_URL = "https://rickandmortyapi.com/api/"
+
+    val apiService: RickAndMortyService by lazy {
+        Retrofit.Builder()
+            .baseUrl(BASE_URL)
+            .addConverterFactory(GsonConverterFactory.create())
+            .build()
+            .create(RickAndMortyService::class.java)
+    }
+}

app/src/main/java/com/example/api/network/RickAndMortyService.kt

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+package com.example.api.network
+
+import com.example.api.model.CharacterResponse
+import retrofit2.http.GET
+
+interface RickAndMortyService {
+    @GET("character")
+    suspend fun getCharacters(): CharacterResponse
+}

app/src/main/java/com/example/api/ui/components/CharacterItem.kt

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+package com.example.api.ui.components
+
+import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material3.Card
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.clip
+import androidx.compose.ui.layout.ContentScale
+import androidx.compose.ui.unit.dp
+import coil.compose.AsyncImage
+import com.example.api.model.Character
+
+@Composable
+fun CharacterItem(character: Character) {
+    Card(
+        modifier = Modifier
+            .fillMaxWidth()
+            .padding(8.dp),
+        shape = RoundedCornerShape(8.dp)
+    ) {
+        Row(modifier = Modifier.padding(8.dp)) {
+            AsyncImage(
+                model = character.image,
+                contentDescription = null,
+                modifier = Modifier
+                    .size(100.dp)
+                    .clip(RoundedCornerShape(8.dp)),
+                contentScale = ContentScale.Crop
+            )
+            Spacer(modifier = Modifier.width(16.dp))
+            Column {
+                Text(text = character.name, style = MaterialTheme.typography.titleLarge)
+                Text(text = "Status: ${character.status}")
+                Text(text = "Species: ${character.species}")
+                Text(text = "Location: ${character.location.name}")
+            }
+        }
+    }
+}

app/src/main/java/com/example/api/ui/theme/Color.kt

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+package com.example.api.ui.theme
+
+import androidx.compose.ui.graphics.Color
+
+val Purple80 = Color(0xFFD0BCFF)
+val PurpleGrey80 = Color(0xFFCCC2DC)
+val Pink80 = Color(0xFFEFB8C8)
+
+val Purple40 = Color(0xFF6650a4)
+val PurpleGrey40 = Color(0xFF625b71)
+val Pink40 = Color(0xFF7D5260)

app/src/main/java/com/example/api/ui/theme/Theme.kt

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+package com.example.api.ui.theme
+
+import android.app.Activity
+import android.os.Build
+import androidx.compose.foundation.isSystemInDarkTheme
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.darkColorScheme
+import androidx.compose.material3.dynamicDarkColorScheme
+import androidx.compose.material3.dynamicLightColorScheme
+import androidx.compose.material3.lightColorScheme
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.platform.LocalContext
+
+private val DarkColorScheme = darkColorScheme(
+    primary = Purple80,
+    secondary = PurpleGrey80,
+    tertiary = Pink80
+)
+
+private val LightColorScheme = lightColorScheme(
+    primary = Purple40,
+    secondary = PurpleGrey40,
+    tertiary = Pink40
+
+    /* Other default colors to override
+    background = Color(0xFFFFFBFE),
+    surface = Color(0xFFFFFBFE),
+    onPrimary = Color.White,
+    onSecondary = Color.White,
+    onTertiary = Color.White,
+    onBackground = Color(0xFF1C1B1F),
+    onSurface = Color(0xFF1C1B1F),
+    */
+)
+
+@Composable
+fun ApiTheme(
+    darkTheme: Boolean = isSystemInDarkTheme(),
+    // Dynamic color is available on Android 12+
+    dynamicColor: Boolean = true,
+    content: @Composable () -> Unit
+) {
+    val colorScheme = when {
+        dynamicColor && Build.VERSION.SDK_INT >= Build.VERSION_CODES.S -> {
+            val context = LocalContext.current
+            if (darkTheme) dynamicDarkColorScheme(context) else dynamicLightColorScheme(context)
+        }
+
+        darkTheme -> DarkColorScheme
+        else -> LightColorScheme
+    }
+
+    MaterialTheme(
+        colorScheme = colorScheme,
+        typography = Typography,
+        content = content
+    )
+}

app/src/main/java/com/example/api/ui/theme/Type.kt

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+package com.example.api.ui.theme
+
+import androidx.compose.material3.Typography
+import androidx.compose.ui.text.TextStyle
+import androidx.compose.ui.text.font.FontFamily
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.unit.sp
+
+// Set of Material typography styles to start with
+val Typography = Typography(
+    bodyLarge = TextStyle(
+        fontFamily = FontFamily.Default,
+        fontWeight = FontWeight.Normal,
+        fontSize = 16.sp,
+        lineHeight = 24.sp,
+        letterSpacing = 0.5.sp
+    )
+    /* Other default text styles to override
+    titleLarge = TextStyle(
+        fontFamily = FontFamily.Default,
+        fontWeight = FontWeight.Normal,
+        fontSize = 22.sp,
+        lineHeight = 28.sp,
+        letterSpacing = 0.sp
+    ),
+    labelSmall = TextStyle(
+        fontFamily = FontFamily.Default,
+        fontWeight = FontWeight.Medium,
+        fontSize = 11.sp,
+        lineHeight = 16.sp,
+        letterSpacing = 0.5.sp
+    )
+    */
+)

app/src/main/java/com/example/api/viewmodel/CharacterViewModel.kt

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+package com.example.api.viewmodel
+
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import com.example.api.model.Character
+import com.example.api.network.RetrofitClient
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.launch
+
+class CharacterViewModel : ViewModel() {
+    private val _characters = MutableStateFlow<List<Character>>(emptyList())
+    val characters: StateFlow<List<Character>> = _characters
+
+    private val _isLoading = MutableStateFlow(false)
+    val isLoading: StateFlow<Boolean> = _isLoading
+
+    private val _error = MutableStateFlow<String?>(null)
+    val error: StateFlow<String?> = _error
+
+    init {
+        fetchCharacters()
+    }
+
+    fun fetchCharacters() {
+        viewModelScope.launch {
+            _isLoading.value = true
+            _error.value = null
+            try {
+                val response = RetrofitClient.apiService.getCharacters()
+                _characters.value = response.results
+            } catch (e: Exception) {
+                _error.value = "Erro ao carregar personagens: ${e.localizedMessage}"
+            } finally {
+                _isLoading.value = false
+            }
+        }
+    }
+}