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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.ComponentActivity
import androidx.activity.compose.setContent import androidx.activity.compose.setContent
import androidx.activity.enableEdgeToEdge import androidx.activity.enableEdgeToEdge
import androidx.compose.foundation.layout.Box import androidx.compose.foundation.layout.*
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.LazyColumn
import androidx.compose.foundation.lazy.items import androidx.compose.foundation.lazy.items
import androidx.compose.material3.Button import androidx.compose.material3.*
import androidx.compose.material3.CircularProgressIndicator import androidx.compose.runtime.*
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.Alignment
import androidx.compose.ui.Modifier import androidx.compose.ui.Modifier
import androidx.compose.ui.unit.dp import androidx.compose.ui.unit.dp
@@ -47,37 +35,58 @@ fun CharacterScreen(viewModel: CharacterViewModel = viewModel()) {
val characters by viewModel.characters.collectAsState() val characters by viewModel.characters.collectAsState()
val isLoading by viewModel.isLoading.collectAsState() val isLoading by viewModel.isLoading.collectAsState()
val error by viewModel.error.collectAsState() val error by viewModel.error.collectAsState()
val searchQuery by viewModel.searchQuery.collectAsState()
Scaffold( Scaffold(
topBar = { topBar = {
TopAppBar(title = { Text("Rick and Morty Characters") }) TopAppBar(title = { Text("Rick and Morty Finder") })
} }
) { innerPadding -> ) { innerPadding ->
Box( Column(
modifier = Modifier modifier = Modifier
.fillMaxSize() .fillMaxSize()
.padding(innerPadding) .padding(innerPadding)
) { ) {
when { // Barra de Busca - Isso faz o app "fazer alguma coisa" interativa
isLoading -> { OutlinedTextField(
CircularProgressIndicator(modifier = Modifier.align(Alignment.Center)) value = searchQuery,
} onValueChange = { viewModel.onSearchQueryChange(it) },
error != null -> { modifier = Modifier
Column( .fillMaxWidth()
modifier = Modifier.align(Alignment.Center), .padding(8.dp),
horizontalAlignment = Alignment.CenterHorizontally placeholder = { Text("Pesquisar personagem (ex: Rick, Morty...)") },
) { label = { Text("Buscar por Nome") },
Text(text = error ?: "Erro desconhecido") singleLine = true
Spacer(modifier = Modifier.height(8.dp)) )
Button(onClick = { viewModel.fetchCharacters() }) {
Text("Tentar novamente") 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")
}
} }
} }
} characters.isEmpty() && !isLoading -> {
else -> { Text(
LazyColumn { text = "Nenhum resultado encontrado.",
items(characters) { character -> modifier = Modifier.align(Alignment.Center)
CharacterItem(character = character) )
}
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 com.example.api.model.CharacterResponse
import retrofit2.http.GET import retrofit2.http.GET
import retrofit2.http.Query
interface RickAndMortyService { interface RickAndMortyService {
@GET("character") @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) private val _error = MutableStateFlow<String?>(null)
val error: StateFlow<String?> = _error val error: StateFlow<String?> = _error
private val _searchQuery = MutableStateFlow("")
val searchQuery: StateFlow<String> = _searchQuery
init { init {
fetchCharacters() fetchCharacters()
} }
fun fetchCharacters() { fun onSearchQueryChange(query: String) {
_searchQuery.value = query
fetchCharacters(query)
}
fun fetchCharacters(name: String? = null) {
viewModelScope.launch { viewModelScope.launch {
_isLoading.value = true _isLoading.value = true
_error.value = null _error.value = null
try { try {
val response = RetrofitClient.apiService.getCharacters() val response = RetrofitClient.apiService.getCharacters(name = name)
_characters.value = response.results _characters.value = response.results
} catch (e: Exception) { } 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 { } finally {
_isLoading.value = false _isLoading.value = false
} }