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alterações

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230417
2026-04-16 10:27:11 +01:00
parent 3838e49a69
commit 308e79a52c
3 changed files with 61 additions and 39 deletions
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79
app/src/main/java/com/example/api/MainActivity.kt
View File

@@ -4,23 +4,11 @@ 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.layout.*
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.material3.*
import androidx.compose.runtime.*
import androidx.compose.ui.Alignment
import androidx.compose.ui.Modifier
import androidx.compose.ui.unit.dp
@@ -47,37 +35,58 @@ fun CharacterScreen(viewModel: CharacterViewModel = viewModel()) {
val characters by viewModel.characters.collectAsState()
val isLoading by viewModel.isLoading.collectAsState()
val error by viewModel.error.collectAsState()
val searchQuery by viewModel.searchQuery.collectAsState()
Scaffold(
topBar = {
TopAppBar(title = { Text("Rick and Morty Characters") })
TopAppBar(title = { Text("Rick and Morty Finder") })
}
) { innerPadding ->
Box(
Column(
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")
// Barra de Busca - Isso faz o app "fazer alguma coisa" interativa
OutlinedTextField(
value = searchQuery,
onValueChange = { viewModel.onSearchQueryChange(it) },
modifier = Modifier
.fillMaxWidth()
.padding(8.dp),
placeholder = { Text("Pesquisar personagem (ex: Rick, Morty...)") },
label = { Text("Buscar por Nome") },
singleLine = true
)
Box(modifier = Modifier.weight(1f)) {
when {
isLoading && characters.isEmpty() -> {
CircularProgressIndicator(modifier = Modifier.align(Alignment.Center))
}
error != null && characters.isEmpty() -> {
Column(
modifier = Modifier.align(Alignment.Center),
horizontalAlignment = Alignment.CenterHorizontally
) {
Text(text = error ?: "Erro desconhecido")
Spacer(modifier = Modifier.height(16.dp))
Button(onClick = { viewModel.fetchCharacters(searchQuery) }) {
Text("Tentar novamente")
}
}
}
}
else -> {
LazyColumn {
items(characters) { character ->
CharacterItem(character = character)
characters.isEmpty() && !isLoading -> {
Text(
text = "Nenhum resultado encontrado.",
modifier = Modifier.align(Alignment.Center)
)
}
else -> {
LazyColumn {
items(characters) { character ->
CharacterItem(character = character)
}
}
}
}

6
app/src/main/java/com/example/api/network/RickAndMortyService.kt
View File

@@ -2,8 +2,12 @@ package com.example.api.network
import com.example.api.model.CharacterResponse
import retrofit2.http.GET
import retrofit2.http.Query
interface RickAndMortyService {
@GET("character")
suspend fun getCharacters(): CharacterResponse
suspend fun getCharacters(
@Query("page") page: Int? = null,
@Query("name") name: String? = null
): CharacterResponse
}

15
app/src/main/java/com/example/api/viewmodel/CharacterViewModel.kt
View File

@@ -18,19 +18,28 @@ class CharacterViewModel : ViewModel() {
private val _error = MutableStateFlow<String?>(null)
val error: StateFlow<String?> = _error
private val _searchQuery = MutableStateFlow("")
val searchQuery: StateFlow<String> = _searchQuery
init {
fetchCharacters()
}
fun fetchCharacters() {
fun onSearchQueryChange(query: String) {
_searchQuery.value = query
fetchCharacters(query)
}
fun fetchCharacters(name: String? = null) {
viewModelScope.launch {
_isLoading.value = true
_error.value = null
try {
val response = RetrofitClient.apiService.getCharacters()
val response = RetrofitClient.apiService.getCharacters(name = name)
_characters.value = response.results
} catch (e: Exception) {
_error.value = "Erro ao carregar personagens: ${e.localizedMessage}"
_characters.value = emptyList()
_error.value = if (name != null) "Nenhum personagem encontrado com esse nome." else "Erro ao carregar personagens."
} finally {
_isLoading.value = false
}