commit a9da34b5920b60c97fe4b0a0580744fefbe2770d Author: Guilherme Dias Azevedo Praça <240408@MacBook-Pro-9.local> Date: Mon Nov 3 11:57:51 2025 +0000 first commit diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..aa724b7 --- /dev/null +++ b/.gitignore @@ -0,0 +1,15 @@ +*.iml +.gradle +/local.properties +/.idea/caches +/.idea/libraries +/.idea/modules.xml +/.idea/workspace.xml +/.idea/navEditor.xml +/.idea/assetWizardSettings.xml +.DS_Store +/build +/captures +.externalNativeBuild +.cxx +local.properties diff --git a/.idea/AndroidProjectSystem.xml b/.idea/AndroidProjectSystem.xml new file mode 100644 index 0000000..4a53bee --- /dev/null +++ b/.idea/AndroidProjectSystem.xml @@ -0,0 +1,6 @@ + + + + + \ No newline at end of file diff --git a/.idea/compiler.xml b/.idea/compiler.xml new file mode 100644 index 0000000..b86273d --- /dev/null +++ b/.idea/compiler.xml @@ -0,0 +1,6 @@ + + + + + + \ No newline at end of file diff --git a/.idea/deploymentTargetSelector.xml b/.idea/deploymentTargetSelector.xml new file mode 100644 index 0000000..07b225a --- /dev/null +++ b/.idea/deploymentTargetSelector.xml @@ -0,0 +1,13 @@ + + + + + + + + + + + \ No newline at end of file diff --git a/.idea/gradle.xml b/.idea/gradle.xml new file mode 100644 index 0000000..639c779 --- /dev/null +++ b/.idea/gradle.xml @@ -0,0 +1,19 @@ + + + + + + + \ No newline at end of file diff --git a/.idea/misc.xml b/.idea/misc.xml new file mode 100644 index 0000000..2cdc89a --- /dev/null +++ b/.idea/misc.xml @@ -0,0 +1,5 @@ + + + + + \ No newline at end of file diff --git a/.idea/runConfigurations.xml b/.idea/runConfigurations.xml new file mode 100644 index 0000000..16660f1 --- /dev/null +++ b/.idea/runConfigurations.xml @@ -0,0 +1,17 @@ + + + + + + \ No newline at end of file diff --git a/.idea/vcs.xml b/.idea/vcs.xml new file mode 100644 index 0000000..94a25f7 --- /dev/null +++ b/.idea/vcs.xml @@ -0,0 +1,6 @@ + + + + + + \ No newline at end of file diff --git a/INSTRUCOES_USO.md b/INSTRUCOES_USO.md new file mode 100644 index 0000000..cfe911f --- /dev/null +++ b/INSTRUCOES_USO.md @@ -0,0 +1,206 @@ +# 📱 Conversor de Moedas - Instruções de Uso + +## 🚀 Como Executar o Aplicativo + +### Pré-requisitos +- Android Studio instalado +- Android SDK configurado +- Dispositivo Android ou emulador + +### Passos para Executar + +1. **Abrir o Projeto** + ```bash + # Navegar para o diretório do projeto + cd /Users/240408/AndroidStudioProjects/conversordemoedas2 + + # Abrir no Android Studio + open -a "Android Studio" . + ``` + +2. **Sincronizar Dependências** + - O Android Studio irá sincronizar automaticamente + - Ou execute: `./gradlew build` + +3. **Executar o App** + - Conecte um dispositivo Android ou inicie um emulador + - Clique em "Run" (▶️) no Android Studio + - Ou execute: `./gradlew installDebug` + +## 💱 Como Usar o Conversor + +### Interface Principal + +1. **Campo de Valor** + - Digite o valor que deseja converter + - Aceita números decimais (ex: 100.50) + - Valores devem ser positivos + +2. **Seleção de Moedas** + - **De**: Moeda de origem (padrão: USD) + - **Para**: Moeda de destino (padrão: BRL) + - Use os spinners para selecionar + +3. **Conversão** + - Clique no botão "Converter" + - O resultado aparecerá abaixo do botão + - Formato: símbolo + valor (ex: R$ 520.00) + +4. **Taxa de Câmbio** + - Mostra a taxa atual entre as moedas selecionadas + - Atualiza automaticamente ao mudar as moedas + +5. **Histórico** + - Lista as últimas 50 conversões realizadas + - Mostra: valor original, resultado e data/hora + - Botão "Limpar" para apagar o histórico + +## 🗄️ Banco de Dados SQLite + +### Estrutura das Tabelas + +#### Tabela `currencies` +```sql +CREATE TABLE currencies ( + id INTEGER PRIMARY KEY AUTOINCREMENT, + code TEXT UNIQUE NOT NULL, -- Código da moeda (USD, BRL, etc.) + name TEXT NOT NULL, -- Nome completo + symbol TEXT NOT NULL, -- Símbolo ($, R$, €, etc.) + rate_to_usd REAL NOT NULL -- Taxa em relação ao USD +); +``` + +#### Tabela `conversions` +```sql +CREATE TABLE conversions ( + id INTEGER PRIMARY KEY AUTOINCREMENT, + from_currency TEXT NOT NULL, -- Moeda de origem + to_currency TEXT NOT NULL, -- Moeda de destino + amount REAL NOT NULL, -- Valor convertido + result REAL NOT NULL, -- Resultado + date TEXT NOT NULL -- Timestamp da conversão +); +``` + +### Moedas Pré-cadastradas + +| Código | Nome | Símbolo | Taxa USD | +|--------|------|---------|----------| +| USD | Dólar Americano | $ | 1.0 | +| BRL | Real Brasileiro | R$ | 5.2 | +| EUR | Euro | € | 0.85 | +| GBP | Libra Esterlina | £ | 0.73 | +| JPY | Iene Japonês | ¥ | 110.0 | +| CAD | Dólar Canadense | C$ | 1.25 | +| AUD | Dólar Australiano | A$ | 1.35 | +| CHF | Franco Suíço | CHF | 0.92 | +| CNY | Yuan Chinês | ¥ | 6.45 | +| MXN | Peso Mexicano | $ | 20.0 | + +## 🔧 Funcionalidades Técnicas + +### Conversão de Moedas +- **Algoritmo**: Conversão via USD como moeda intermediária +- **Fórmula**: `resultado = (valor / taxa_origem) * taxa_destino` +- **Precisão**: Dupla precisão para cálculos + +### Persistência +- **SQLite**: Banco local no dispositivo +- **Criação**: Automática na primeira execução +- **Dados**: Inserção automática das moedas padrão + +### Interface +- **Material Design**: Componentes modernos +- **Responsiva**: Adaptável a diferentes telas +- **Validação**: Entrada de dados segura + +## 🧪 Testando o Aplicativo + +### Testes Manuais + +1. **Conversão Básica** + - Valor: 100 + - De: USD + - Para: BRL + - Resultado esperado: R$ 520.00 + +2. **Conversão Decimal** + - Valor: 99.99 + - De: EUR + - Para: JPY + - Verificar precisão do cálculo + +3. **Mesma Moeda** + - Valor: 50 + - De: USD + - Para: USD + - Resultado: $ 50.00 + +4. **Histórico** + - Realizar várias conversões + - Verificar se aparecem no histórico + - Testar botão "Limpar" + +### Testes Automatizados + +Para executar os testes de demonstração: + +```java +// Na MainActivity, descomente esta linha: +CurrencyConverterDemo.runDemo(this); +``` + +Isso executará testes automáticos e mostrará os resultados no log. + +## 🐛 Solução de Problemas + +### Problemas Comuns + +1. **App não compila** + - Verificar se todas as dependências estão instaladas + - Executar `./gradlew clean` e `./gradlew build` + +2. **Conversão não funciona** + - Verificar se o valor é positivo + - Confirmar se as moedas estão selecionadas + +3. **Histórico vazio** + - Normal na primeira execução + - Realizar algumas conversões primeiro + +4. **Taxa de câmbio incorreta** + - As taxas são fixas e podem não refletir valores reais + - Para valores reais, integrar com API de câmbio + +### Logs de Debug + +Para ver logs detalhados: +```bash +adb logcat | grep CurrencyConverter +``` + +## 📈 Melhorias Futuras + +- [ ] Integração com API de câmbio em tempo real +- [ ] Gráficos de histórico de conversões +- [ ] Notificações de mudanças de taxa +- [ ] Suporte a mais moedas +- [ ] Modo offline/online +- [ ] Backup e sincronização de dados +- [ ] Temas claro/escuro +- [ ] Calculadora de taxas +- [ ] Favoritos de conversões +- [ ] Exportar histórico + +## 📞 Suporte + +Para dúvidas ou problemas: +1. Verificar os logs do Android +2. Testar com valores simples primeiro +3. Verificar se o banco de dados foi criado corretamente +4. Consultar a documentação do código + +--- + +**Desenvolvido com ❤️ usando Android SDK, SQLite e Material Design** + diff --git a/README.md b/README.md new file mode 100644 index 0000000..1246b0c --- /dev/null +++ b/README.md @@ -0,0 +1,113 @@ +# Conversor de Moedas - Android SQLite + +Um aplicativo Android completo para conversão de moedas usando SQLite como banco de dados local. + +## Funcionalidades + +- **Conversão de Moedas**: Converte valores entre diferentes moedas usando taxas de câmbio pré-definidas +- **Banco de Dados SQLite**: Armazena moedas e histórico de conversões localmente +- **Histórico de Conversões**: Visualiza e gerencia o histórico de conversões realizadas +- **Taxa de Câmbio**: Mostra a taxa de câmbio atual entre as moedas selecionadas +- **Interface Intuitiva**: Design moderno com Material Design + +## Moedas Suportadas + +- USD - Dólar Americano ($) +- BRL - Real Brasileiro (R$) +- EUR - Euro (€) +- GBP - Libra Esterlina (£) +- JPY - Iene Japonês (¥) +- CAD - Dólar Canadense (C$) +- AUD - Dólar Australiano (A$) +- CHF - Franco Suíço (CHF) +- CNY - Yuan Chinês (¥) +- MXN - Peso Mexicano ($) + +## Estrutura do Projeto + +### Classes Principais + +1. **DatabaseHelper**: Gerencia o banco de dados SQLite + - Criação e atualização das tabelas + - Operações CRUD para moedas e conversões + - Inserção de dados padrão + +2. **CurrencyConverter**: Lógica de conversão de moedas + - Conversão entre moedas + - Cálculo de taxas de câmbio + - Formatação de valores monetários + +3. **Currency**: Modelo de dados para moedas + - Código, nome, símbolo e taxa de câmbio + +4. **Conversion**: Modelo de dados para conversões + - Moedas de origem e destino, valores e data + +5. **ConversionHistoryAdapter**: Adapter para ListView do histórico + +### Banco de Dados + +#### Tabela `currencies` +- `id`: Chave primária +- `code`: Código da moeda (ex: USD, BRL) +- `name`: Nome da moeda +- `symbol`: Símbolo da moeda +- `rate_to_usd`: Taxa de câmbio em relação ao USD + +#### Tabela `conversions` +- `id`: Chave primária +- `from_currency`: Moeda de origem +- `to_currency`: Moeda de destino +- `amount`: Valor convertido +- `result`: Resultado da conversão +- `date`: Data/hora da conversão + +## Como Usar + +1. **Digite o valor** a ser convertido no campo "Valor" +2. **Selecione a moeda de origem** no spinner "De" +3. **Selecione a moeda de destino** no spinner "Para" +4. **Clique em "Converter"** para realizar a conversão +5. **Visualize o resultado** na área de resultado +6. **Consulte o histórico** de conversões na lista abaixo +7. **Limpe o histórico** usando o botão "Limpar" se necessário + +## Tecnologias Utilizadas + +- **Android SDK**: Desenvolvimento nativo Android +- **SQLite**: Banco de dados local +- **Material Design**: Interface moderna +- **Java**: Linguagem de programação +- **ConstraintLayout**: Layout responsivo +- **CardView**: Componentes visuais + +## Instalação + +1. Clone o repositório +2. Abra o projeto no Android Studio +3. Sincronize as dependências do Gradle +4. Execute o aplicativo em um dispositivo ou emulador + +## Requisitos + +- Android API 24+ (Android 7.0) +- Android Studio +- Java 11+ + +## Funcionalidades Técnicas + +- **Persistência Local**: Dados armazenados no SQLite +- **Validação de Entrada**: Verificação de valores válidos +- **Tratamento de Erros**: Mensagens de erro amigáveis +- **Interface Responsiva**: Adaptável a diferentes tamanhos de tela +- **Performance**: Operações otimizadas de banco de dados + +## Melhorias Futuras + +- Integração com API de câmbio em tempo real +- Gráficos de histórico de conversões +- Notificações de mudanças de taxa +- Suporte a mais moedas +- Modo offline/online +- Backup e sincronização de dados + diff --git a/app/.gitignore b/app/.gitignore new file mode 100644 index 0000000..42afabf --- /dev/null +++ b/app/.gitignore @@ -0,0 +1 @@ +/build \ No newline at end of file diff --git a/app/build.gradle.kts b/app/build.gradle.kts new file mode 100644 index 0000000..976fb5c --- /dev/null +++ b/app/build.gradle.kts @@ -0,0 +1,45 @@ +plugins { + alias(libs.plugins.android.application) +} + +android { + namespace = "com.example.conversordemoedas2" + compileSdk = 36 + + defaultConfig { + applicationId = "com.example.conversordemoedas2" + minSdk = 24 + targetSdk = 36 + versionCode = 1 + versionName = "1.0" + + testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner" + } + + buildTypes { + release { + isMinifyEnabled = false + proguardFiles( + getDefaultProguardFile("proguard-android-optimize.txt"), + "proguard-rules.pro" + ) + } + } + compileOptions { + sourceCompatibility = JavaVersion.VERSION_17 + targetCompatibility = JavaVersion.VERSION_17 + } +} + +dependencies { + + implementation(libs.appcompat) + implementation(libs.material) + implementation(libs.activity) + implementation(libs.constraintlayout) + implementation("androidx.cardview:cardview:1.0.0") + implementation("com.google.android.material:material:1.11.0") + testImplementation(libs.junit) + androidTestImplementation(libs.ext.junit) + androidTestImplementation(libs.espresso.core) +} \ No newline at end of file diff --git a/app/proguard-rules.pro b/app/proguard-rules.pro new file mode 100644 index 0000000..481bb43 --- /dev/null +++ b/app/proguard-rules.pro @@ -0,0 +1,21 @@ +# Add project specific ProGuard rules here. +# You can control the set of applied configuration files using the +# proguardFiles setting in build.gradle. +# +# For more details, see +# http://developer.android.com/guide/developing/tools/proguard.html + +# If your project uses WebView with JS, uncomment the following +# and specify the fully qualified class name to the JavaScript interface +# class: +#-keepclassmembers class fqcn.of.javascript.interface.for.webview { +# public *; +#} + +# Uncomment this to preserve the line number information for +# debugging stack traces. +#-keepattributes SourceFile,LineNumberTable + +# If you keep the line number information, uncomment this to +# hide the original source file name. +#-renamesourcefileattribute SourceFile \ No newline at end of file diff --git a/app/src/androidTest/java/com/example/conversordemoedas2/ExampleInstrumentedTest.java b/app/src/androidTest/java/com/example/conversordemoedas2/ExampleInstrumentedTest.java new file mode 100644 index 0000000..2269f85 --- /dev/null +++ b/app/src/androidTest/java/com/example/conversordemoedas2/ExampleInstrumentedTest.java @@ -0,0 +1,26 @@ +package com.example.conversordemoedas2; + +import android.content.Context; + +import androidx.test.platform.app.InstrumentationRegistry; +import androidx.test.ext.junit.runners.AndroidJUnit4; + +import org.junit.Test; +import org.junit.runner.RunWith; + +import static org.junit.Assert.*; + +/** + * Instrumented test, which will execute on an Android device. + * + * @see Testing documentation + */ +@RunWith(AndroidJUnit4.class) +public class ExampleInstrumentedTest { + @Test + public void useAppContext() { + // Context of the app under test. + Context appContext = InstrumentationRegistry.getInstrumentation().getTargetContext(); + assertEquals("com.example.conversordemoedas2", appContext.getPackageName()); + } +} \ No newline at end of file diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml new file mode 100644 index 0000000..6ef3f6c --- /dev/null +++ b/app/src/main/AndroidManifest.xml @@ -0,0 +1,32 @@ + + + + + + + + + + + + + + + + + \ No newline at end of file diff --git a/app/src/main/java/com/example/conversordemoedas2/AppPreferences.java b/app/src/main/java/com/example/conversordemoedas2/AppPreferences.java new file mode 100644 index 0000000..2f2cfb9 --- /dev/null +++ b/app/src/main/java/com/example/conversordemoedas2/AppPreferences.java @@ -0,0 +1,86 @@ +package com.example.conversordemoedas2; + +import android.content.Context; +import android.content.SharedPreferences; + +/** + * Classe para gerenciar configurações e preferências do usuário + */ +public class AppPreferences { + + private static final String PREFS_NAME = "CurrencyConverterPrefs"; + private static final String KEY_DEFAULT_FROM_CURRENCY = "default_from_currency"; + private static final String KEY_DEFAULT_TO_CURRENCY = "default_to_currency"; + private static final String KEY_LAST_AMOUNT = "last_amount"; + private static final String KEY_SHOW_EXCHANGE_RATE = "show_exchange_rate"; + + private SharedPreferences preferences; + + public AppPreferences(Context context) { + preferences = context.getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE); + } + + /** + * Salva a moeda padrão de origem + */ + public void setDefaultFromCurrency(String currencyCode) { + preferences.edit().putString(KEY_DEFAULT_FROM_CURRENCY, currencyCode).apply(); + } + + /** + * Obtém a moeda padrão de origem + */ + public String getDefaultFromCurrency() { + return preferences.getString(KEY_DEFAULT_FROM_CURRENCY, "USD"); + } + + /** + * Salva a moeda padrão de destino + */ + public void setDefaultToCurrency(String currencyCode) { + preferences.edit().putString(KEY_DEFAULT_TO_CURRENCY, currencyCode).apply(); + } + + /** + * Obtém a moeda padrão de destino + */ + public String getDefaultToCurrency() { + return preferences.getString(KEY_DEFAULT_TO_CURRENCY, "BRL"); + } + + /** + * Salva o último valor digitado + */ + public void setLastAmount(double amount) { + preferences.edit().putFloat(KEY_LAST_AMOUNT, (float) amount).apply(); + } + + /** + * Obtém o último valor digitado + */ + public double getLastAmount() { + return preferences.getFloat(KEY_LAST_AMOUNT, 0.0f); + } + + /** + * Define se deve mostrar a taxa de câmbio + */ + public void setShowExchangeRate(boolean show) { + preferences.edit().putBoolean(KEY_SHOW_EXCHANGE_RATE, show).apply(); + } + + /** + * Verifica se deve mostrar a taxa de câmbio + */ + public boolean getShowExchangeRate() { + return preferences.getBoolean(KEY_SHOW_EXCHANGE_RATE, true); + } + + /** + * Limpa todas as preferências + */ + public void clearAll() { + preferences.edit().clear().apply(); + } +} + diff --git a/app/src/main/java/com/example/conversordemoedas2/Conversion.java b/app/src/main/java/com/example/conversordemoedas2/Conversion.java new file mode 100644 index 0000000..6a6a649 --- /dev/null +++ b/app/src/main/java/com/example/conversordemoedas2/Conversion.java @@ -0,0 +1,52 @@ +package com.example.conversordemoedas2; + +import java.text.SimpleDateFormat; +import java.util.Date; +import java.util.Locale; + +public class Conversion { + private int id; + private String fromCurrency; + private String toCurrency; + private double amount; + private double result; + private long date; + + public Conversion(int id, String fromCurrency, String toCurrency, + double amount, double result, long date) { + this.id = id; + this.fromCurrency = fromCurrency; + this.toCurrency = toCurrency; + this.amount = amount; + this.result = result; + this.date = date; + } + + // Getters + public int getId() { return id; } + public String getFromCurrency() { return fromCurrency; } + public String getToCurrency() { return toCurrency; } + public double getAmount() { return amount; } + public double getResult() { return result; } + public long getDate() { return date; } + + // Setters + public void setId(int id) { this.id = id; } + public void setFromCurrency(String fromCurrency) { this.fromCurrency = fromCurrency; } + public void setToCurrency(String toCurrency) { this.toCurrency = toCurrency; } + public void setAmount(double amount) { this.amount = amount; } + public void setResult(double result) { this.result = result; } + public void setDate(long date) { this.date = date; } + + public String getFormattedDate() { + SimpleDateFormat sdf = new SimpleDateFormat("dd/MM/yyyy HH:mm", Locale.getDefault()); + return sdf.format(new Date(date)); + } + + @Override + public String toString() { + return String.format("%.2f %s = %.2f %s (%s)", + amount, fromCurrency, result, toCurrency, getFormattedDate()); + } +} + diff --git a/app/src/main/java/com/example/conversordemoedas2/ConversionHistoryAdapter.java b/app/src/main/java/com/example/conversordemoedas2/ConversionHistoryAdapter.java new file mode 100644 index 0000000..0b0e0cb --- /dev/null +++ b/app/src/main/java/com/example/conversordemoedas2/ConversionHistoryAdapter.java @@ -0,0 +1,79 @@ +package com.example.conversordemoedas2; + +import android.content.Context; +import android.view.LayoutInflater; +import android.view.View; +import android.view.ViewGroup; +import android.widget.BaseAdapter; +import android.widget.TextView; +import java.util.List; + +public class ConversionHistoryAdapter extends BaseAdapter { + private Context context; + private List conversions; + private LayoutInflater inflater; + + public ConversionHistoryAdapter(Context context, List conversions) { + this.context = context; + this.conversions = conversions; + this.inflater = LayoutInflater.from(context); + } + + @Override + public int getCount() { + return conversions.size(); + } + + @Override + public Object getItem(int position) { + return conversions.get(position); + } + + @Override + public long getItemId(int position) { + return conversions.get(position).getId(); + } + + @Override + public View getView(int position, View convertView, ViewGroup parent) { + ViewHolder holder; + + if (convertView == null) { + convertView = inflater.inflate(android.R.layout.simple_list_item_2, parent, false); + holder = new ViewHolder(); + holder.text1 = convertView.findViewById(android.R.id.text1); + holder.text2 = convertView.findViewById(android.R.id.text2); + convertView.setTag(holder); + } else { + holder = (ViewHolder) convertView.getTag(); + } + + Conversion conversion = conversions.get(position); + + // Texto principal: conversão + String mainText = String.format("%.2f %s = %.2f %s", + conversion.getAmount(), + conversion.getFromCurrency(), + conversion.getResult(), + conversion.getToCurrency()); + + // Texto secundário: data + String subText = conversion.getFormattedDate(); + + holder.text1.setText(mainText); + holder.text2.setText(subText); + + return convertView; + } + + public void updateData(List newConversions) { + this.conversions = newConversions; + notifyDataSetChanged(); + } + + private static class ViewHolder { + TextView text1; + TextView text2; + } +} + diff --git a/app/src/main/java/com/example/conversordemoedas2/Currency.java b/app/src/main/java/com/example/conversordemoedas2/Currency.java new file mode 100644 index 0000000..2a79c4e --- /dev/null +++ b/app/src/main/java/com/example/conversordemoedas2/Currency.java @@ -0,0 +1,37 @@ +package com.example.conversordemoedas2; + +public class Currency { + private int id; + private String code; + private String name; + private String symbol; + private double rateToUsd; + + public Currency(int id, String code, String name, String symbol, double rateToUsd) { + this.id = id; + this.code = code; + this.name = name; + this.symbol = symbol; + this.rateToUsd = rateToUsd; + } + + // Getters + public int getId() { return id; } + public String getCode() { return code; } + public String getName() { return name; } + public String getSymbol() { return symbol; } + public double getRateToUsd() { return rateToUsd; } + + // Setters + public void setId(int id) { this.id = id; } + public void setCode(String code) { this.code = code; } + public void setName(String name) { this.name = name; } + public void setSymbol(String symbol) { this.symbol = symbol; } + public void setRateToUsd(double rateToUsd) { this.rateToUsd = rateToUsd; } + + @Override + public String toString() { + return code + " - " + name + " (" + symbol + ")"; + } +} + diff --git a/app/src/main/java/com/example/conversordemoedas2/CurrencyConverter.java b/app/src/main/java/com/example/conversordemoedas2/CurrencyConverter.java new file mode 100644 index 0000000..d1bfd42 --- /dev/null +++ b/app/src/main/java/com/example/conversordemoedas2/CurrencyConverter.java @@ -0,0 +1,127 @@ +package com.example.conversordemoedas2; + +import android.content.Context; +import java.util.List; + +public class CurrencyConverter { + private DatabaseHelper dbHelper; + + public CurrencyConverter(Context context) { + this.dbHelper = new DatabaseHelper(context); + initializeDatabase(); + } + + private void initializeDatabase() { + // Seed additional currencies if missing + dbHelper.seedAdditionalCurrencies(); + } + + /** + * Converte um valor de uma moeda para outra + * @param amount Valor a ser convertido + * @param fromCurrencyCode Código da moeda de origem + * @param toCurrencyCode Código da moeda de destino + * @return Valor convertido + */ + public double convert(double amount, String fromCurrencyCode, String toCurrencyCode) { + if (fromCurrencyCode.equals(toCurrencyCode)) { + return amount; + } + + Currency fromCurrency = dbHelper.getCurrencyByCode(fromCurrencyCode); + Currency toCurrency = dbHelper.getCurrencyByCode(toCurrencyCode); + + if (fromCurrency == null || toCurrency == null) { + throw new IllegalArgumentException("Moeda não encontrada"); + } + + // Converter para USD primeiro, depois para a moeda de destino + double amountInUsd = amount / fromCurrency.getRateToUsd(); + double result = amountInUsd * toCurrency.getRateToUsd(); + + // Salvar no histórico + dbHelper.insertConversion(fromCurrencyCode, toCurrencyCode, amount, result); + + return result; + } + + /** + * Obtém todas as moedas disponíveis + * @return Lista de moedas + */ + public List getAvailableCurrencies() { + return dbHelper.getAllCurrencies(); + } + + /** + * Obtém o histórico de conversões + * @return Lista de conversões + */ + public List getConversionHistory() { + return dbHelper.getConversionHistory(); + } + + /** + * Limpa o histórico de conversões + */ + public void clearHistory() { + dbHelper.clearHistory(); + } + + /** + * Obtém uma moeda pelo código + * @param code Código da moeda + * @return Objeto Currency ou null se não encontrado + */ + public Currency getCurrencyByCode(String code) { + return dbHelper.getCurrencyByCode(code); + } + + /** + * Formata um valor monetário com símbolo da moeda + * @param amount Valor + * @param currencyCode Código da moeda + * @return String formatada + */ + public String formatCurrency(double amount, String currencyCode) { + Currency currency = getCurrencyByCode(currencyCode); + if (currency != null) { + return String.format("%s %.2f", currency.getSymbol(), amount); + } + return String.format("%.2f %s", amount, currencyCode); + } + + /** + * Calcula a taxa de câmbio entre duas moedas + * @param fromCurrencyCode Moeda de origem + * @param toCurrencyCode Moeda de destino + * @return Taxa de câmbio + */ + public double getExchangeRate(String fromCurrencyCode, String toCurrencyCode) { + if (fromCurrencyCode.equals(toCurrencyCode)) { + return 1.0; + } + + Currency fromCurrency = dbHelper.getCurrencyByCode(fromCurrencyCode); + Currency toCurrency = dbHelper.getCurrencyByCode(toCurrencyCode); + + if (fromCurrency == null || toCurrency == null) { + throw new IllegalArgumentException("Moeda não encontrada"); + } + + // Taxa = (rate_to_usd_destino) / (rate_to_usd_origem) + return toCurrency.getRateToUsd() / fromCurrency.getRateToUsd(); + } + + /** + * Insere uma conversão no histórico + * @param fromCurrency Moeda de origem + * @param toCurrency Moeda de destino + * @param amount Valor convertido + * @param result Resultado da conversão + * @return ID da conversão inserida + */ + public long insertConversion(String fromCurrency, String toCurrency, double amount, double result) { + return dbHelper.insertConversion(fromCurrency, toCurrency, amount, result); + } +} diff --git a/app/src/main/java/com/example/conversordemoedas2/CurrencyConverterDemo.java b/app/src/main/java/com/example/conversordemoedas2/CurrencyConverterDemo.java new file mode 100644 index 0000000..c143da3 --- /dev/null +++ b/app/src/main/java/com/example/conversordemoedas2/CurrencyConverterDemo.java @@ -0,0 +1,121 @@ +package com.example.conversordemoedas2; + +import android.content.Context; +import android.util.Log; +import java.util.List; + +/** + * Classe de demonstração para testar o conversor de moedas + * Esta classe pode ser usada para testar as funcionalidades do conversor + */ +public class CurrencyConverterDemo { + + private static final String TAG = "CurrencyConverterDemo"; + + /** + * Demonstra as funcionalidades do conversor de moedas + */ + public static void runDemo(Context context) { + Log.d(TAG, "=== DEMONSTRAÇÃO DO CONVERSOR DE MOEDAS ==="); + + CurrencyConverter converter = new CurrencyConverter(context); + + // 1. Listar todas as moedas disponíveis + Log.d(TAG, "\n1. MOEDAS DISPONÍVEIS:"); + List currencies = converter.getAvailableCurrencies(); + for (Currency currency : currencies) { + Log.d(TAG, "- " + currency.toString()); + } + + // 2. Demonstrações de conversão + Log.d(TAG, "\n2. EXEMPLOS DE CONVERSÃO:"); + + // USD para BRL + try { + double result1 = converter.convert(100.0, "USD", "BRL"); + Log.d(TAG, String.format("100 USD = %s", converter.formatCurrency(result1, "BRL"))); + } catch (Exception e) { + Log.e(TAG, "Erro na conversão USD->BRL: " + e.getMessage()); + } + + // EUR para JPY + try { + double result2 = converter.convert(50.0, "EUR", "JPY"); + Log.d(TAG, String.format("50 EUR = %s", converter.formatCurrency(result2, "JPY"))); + } catch (Exception e) { + Log.e(TAG, "Erro na conversão EUR->JPY: " + e.getMessage()); + } + + // BRL para CAD + try { + double result3 = converter.convert(1000.0, "BRL", "CAD"); + Log.d(TAG, String.format("1000 BRL = %s", converter.formatCurrency(result3, "CAD"))); + } catch (Exception e) { + Log.e(TAG, "Erro na conversão BRL->CAD: " + e.getMessage()); + } + + // 3. Taxas de câmbio + Log.d(TAG, "\n3. TAXAS DE CÂMBIO:"); + try { + double rate1 = converter.getExchangeRate("USD", "BRL"); + Log.d(TAG, String.format("1 USD = %.4f BRL", rate1)); + + double rate2 = converter.getExchangeRate("EUR", "USD"); + Log.d(TAG, String.format("1 EUR = %.4f USD", rate2)); + + double rate3 = converter.getExchangeRate("BRL", "EUR"); + Log.d(TAG, String.format("1 BRL = %.4f EUR", rate3)); + } catch (Exception e) { + Log.e(TAG, "Erro ao calcular taxas: " + e.getMessage()); + } + + // 4. Histórico de conversões + Log.d(TAG, "\n4. HISTÓRICO DE CONVERSÕES:"); + List history = converter.getConversionHistory(); + if (history.isEmpty()) { + Log.d(TAG, "Nenhuma conversão no histórico ainda."); + } else { + for (Conversion conversion : history) { + Log.d(TAG, "- " + conversion.toString()); + } + } + + Log.d(TAG, "\n=== FIM DA DEMONSTRAÇÃO ==="); + } + + /** + * Testa conversões específicas + */ + public static void testSpecificConversions(Context context) { + Log.d(TAG, "=== TESTE DE CONVERSÕES ESPECÍFICAS ==="); + + CurrencyConverter converter = new CurrencyConverter(context); + + // Teste 1: Conversão simples + testConversion(converter, 1.0, "USD", "BRL", "1 USD para BRL"); + + // Teste 2: Conversão com valor alto + testConversion(converter, 10000.0, "EUR", "JPY", "10000 EUR para JPY"); + + // Teste 3: Conversão com valor decimal + testConversion(converter, 99.99, "GBP", "USD", "99.99 GBP para USD"); + + // Teste 4: Conversão para a mesma moeda + testConversion(converter, 50.0, "USD", "USD", "50 USD para USD (mesma moeda)"); + + Log.d(TAG, "=== FIM DOS TESTES ==="); + } + + private static void testConversion(CurrencyConverter converter, double amount, + String from, String to, String description) { + try { + double result = converter.convert(amount, from, to); + String formattedResult = converter.formatCurrency(result, to); + Log.d(TAG, String.format("✓ %s: %.2f %s = %s", + description, amount, from, formattedResult)); + } catch (Exception e) { + Log.e(TAG, String.format("✗ %s: ERRO - %s", description, e.getMessage())); + } + } +} + diff --git a/app/src/main/java/com/example/conversordemoedas2/DatabaseHelper.java b/app/src/main/java/com/example/conversordemoedas2/DatabaseHelper.java new file mode 100644 index 0000000..778861a --- /dev/null +++ b/app/src/main/java/com/example/conversordemoedas2/DatabaseHelper.java @@ -0,0 +1,219 @@ +package com.example.conversordemoedas2; + +import android.content.ContentValues; +import android.content.Context; +import android.database.Cursor; +import android.database.sqlite.SQLiteDatabase; +import android.database.sqlite.SQLiteOpenHelper; +import java.util.ArrayList; +import java.util.List; + +public class DatabaseHelper extends SQLiteOpenHelper { + + private static final String DATABASE_NAME = "CurrencyConverter.db"; + private static final int DATABASE_VERSION = 1; + + // Tabela de moedas + private static final String TABLE_CURRENCIES = "currencies"; + private static final String COLUMN_ID = "id"; + private static final String COLUMN_CODE = "code"; + private static final String COLUMN_NAME = "name"; + private static final String COLUMN_SYMBOL = "symbol"; + private static final String COLUMN_RATE_TO_USD = "rate_to_usd"; + + // Tabela de histórico de conversões + private static final String TABLE_CONVERSIONS = "conversions"; + private static final String COLUMN_FROM_CURRENCY = "from_currency"; + private static final String COLUMN_TO_CURRENCY = "to_currency"; + private static final String COLUMN_AMOUNT = "amount"; + private static final String COLUMN_RESULT = "result"; + private static final String COLUMN_DATE = "date"; + + public DatabaseHelper(Context context) { + super(context, DATABASE_NAME, null, DATABASE_VERSION); + } + + @Override + public void onCreate(SQLiteDatabase db) { + // Criar tabela de moedas + String createCurrenciesTable = "CREATE TABLE " + TABLE_CURRENCIES + " (" + + COLUMN_ID + " INTEGER PRIMARY KEY AUTOINCREMENT, " + + COLUMN_CODE + " TEXT UNIQUE NOT NULL, " + + COLUMN_NAME + " TEXT NOT NULL, " + + COLUMN_SYMBOL + " TEXT NOT NULL, " + + COLUMN_RATE_TO_USD + " REAL NOT NULL" + + ")"; + + // Criar tabela de conversões + String createConversionsTable = "CREATE TABLE " + TABLE_CONVERSIONS + " (" + + COLUMN_ID + " INTEGER PRIMARY KEY AUTOINCREMENT, " + + COLUMN_FROM_CURRENCY + " TEXT NOT NULL, " + + COLUMN_TO_CURRENCY + " TEXT NOT NULL, " + + COLUMN_AMOUNT + " REAL NOT NULL, " + + COLUMN_RESULT + " REAL NOT NULL, " + + COLUMN_DATE + " TEXT NOT NULL" + + ")"; + + db.execSQL(createCurrenciesTable); + db.execSQL(createConversionsTable); + + // Inserir moedas padrão + insertDefaultCurrencies(db); + } + + @Override + public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { + db.execSQL("DROP TABLE IF EXISTS " + TABLE_CONVERSIONS); + db.execSQL("DROP TABLE IF EXISTS " + TABLE_CURRENCIES); + onCreate(db); + } + + private void insertDefaultCurrencies(SQLiteDatabase db) { + String[][] currencies = { + {"USD", "Dólar Americano", "$", "1.0"}, + {"BRL", "Real Brasileiro", "R$", "5.2"}, + {"EUR", "Euro", "€", "0.85"}, + {"GBP", "Libra Esterlina", "£", "0.73"}, + {"JPY", "Iene Japonês", "¥", "110.0"}, + {"CAD", "Dólar Canadense", "C$", "1.25"}, + {"AUD", "Dólar Australiano", "A$", "1.35"}, + {"CHF", "Franco Suíço", "CHF", "0.92"}, + {"CNY", "Yuan Chinês", "¥", "6.45"}, + {"MXN", "Peso Mexicano", "$", "20.0"} + }; + + for (String[] currency : currencies) { + ContentValues values = new ContentValues(); + values.put(COLUMN_CODE, currency[0]); + values.put(COLUMN_NAME, currency[1]); + values.put(COLUMN_SYMBOL, currency[2]); + values.put(COLUMN_RATE_TO_USD, Double.parseDouble(currency[3])); + db.insert(TABLE_CURRENCIES, null, values); + } + } + + // Métodos para gerenciar moedas + public List getAllCurrencies() { + List currencies = new ArrayList<>(); + SQLiteDatabase db = this.getReadableDatabase(); + Cursor cursor = db.query(TABLE_CURRENCIES, null, null, null, null, null, COLUMN_NAME); + + if (cursor.moveToFirst()) { + do { + Currency currency = new Currency( + cursor.getInt(cursor.getColumnIndexOrThrow(COLUMN_ID)), + cursor.getString(cursor.getColumnIndexOrThrow(COLUMN_CODE)), + cursor.getString(cursor.getColumnIndexOrThrow(COLUMN_NAME)), + cursor.getString(cursor.getColumnIndexOrThrow(COLUMN_SYMBOL)), + cursor.getDouble(cursor.getColumnIndexOrThrow(COLUMN_RATE_TO_USD)) + ); + currencies.add(currency); + } while (cursor.moveToNext()); + } + cursor.close(); + db.close(); + return currencies; + } + + public Currency getCurrencyByCode(String code) { + SQLiteDatabase db = this.getReadableDatabase(); + Cursor cursor = db.query(TABLE_CURRENCIES, null, COLUMN_CODE + "=?", + new String[]{code}, null, null, null); + + Currency currency = null; + if (cursor.moveToFirst()) { + currency = new Currency( + cursor.getInt(cursor.getColumnIndexOrThrow(COLUMN_ID)), + cursor.getString(cursor.getColumnIndexOrThrow(COLUMN_CODE)), + cursor.getString(cursor.getColumnIndexOrThrow(COLUMN_NAME)), + cursor.getString(cursor.getColumnIndexOrThrow(COLUMN_SYMBOL)), + cursor.getDouble(cursor.getColumnIndexOrThrow(COLUMN_RATE_TO_USD)) + ); + } + cursor.close(); + db.close(); + return currency; + } + + public void seedAdditionalCurrencies() { + SQLiteDatabase db = this.getWritableDatabase(); + String[][] more = new String[][]{ + {"ARS","Peso Argentino","$","970.0"}, + {"CLP","Peso Chileno","$","920.0"}, + {"COP","Peso Colombiano","$","4100.0"}, + {"INR","Rúpia Indiana","₹","83.0"}, + {"ZAR","Rand Sul-Africano","R","18.5"}, + {"TRY","Lira Turca","₺","34.0"}, + {"RUB","Rublo Russo","₽","95.0"}, + {"KRW","Won Sul-Coreano","₩","1350.0"}, + {"SEK","Coroa Sueca","kr","10.5"}, + {"NOK","Coroa Norueguesa","kr","10.8"}, + {"DKK","Coroa Dinamarquesa","kr","6.9"}, + {"PLN","Zlóti Polonês","zł","4.0"}, + {"CZK","Coroa Checa","Kč","23.0"}, + {"HUF","Florim Húngaro","Ft","370.0"}, + {"ILS","Novo Shekel Israelense","₪","3.8"}, + {"AED","Dirham dos EAU","د.إ","3.67"}, + {"SAR","Rial Saudita","﷼","3.75"}, + {"NZD","Dólar Neozelandês","NZ$","1.60"}, + {"SGD","Dólar de Cingapura","S$","1.35"}, + {"HKD","Dólar de Hong Kong","HK$","7.80"} + }; + for (String[] c : more) { + ContentValues v = new ContentValues(); + v.put(COLUMN_CODE, c[0]); + v.put(COLUMN_NAME, c[1]); + v.put(COLUMN_SYMBOL, c[2]); + v.put(COLUMN_RATE_TO_USD, Double.parseDouble(c[3])); + db.insertWithOnConflict(TABLE_CURRENCIES, null, v, SQLiteDatabase.CONFLICT_IGNORE); + } + db.close(); + } + + // Métodos para gerenciar conversões + public long insertConversion(String fromCurrency, String toCurrency, + double amount, double result) { + SQLiteDatabase db = this.getWritableDatabase(); + ContentValues values = new ContentValues(); + values.put(COLUMN_FROM_CURRENCY, fromCurrency); + values.put(COLUMN_TO_CURRENCY, toCurrency); + values.put(COLUMN_AMOUNT, amount); + values.put(COLUMN_RESULT, result); + values.put(COLUMN_DATE, System.currentTimeMillis()); + + long id = db.insert(TABLE_CONVERSIONS, null, values); + db.close(); + return id; + } + + public List getConversionHistory() { + List conversions = new ArrayList<>(); + SQLiteDatabase db = this.getReadableDatabase(); + Cursor cursor = db.query(TABLE_CONVERSIONS, null, null, null, null, null, + COLUMN_DATE + " DESC", "50"); + + if (cursor.moveToFirst()) { + do { + Conversion conversion = new Conversion( + cursor.getInt(cursor.getColumnIndexOrThrow(COLUMN_ID)), + cursor.getString(cursor.getColumnIndexOrThrow(COLUMN_FROM_CURRENCY)), + cursor.getString(cursor.getColumnIndexOrThrow(COLUMN_TO_CURRENCY)), + cursor.getDouble(cursor.getColumnIndexOrThrow(COLUMN_AMOUNT)), + cursor.getDouble(cursor.getColumnIndexOrThrow(COLUMN_RESULT)), + cursor.getLong(cursor.getColumnIndexOrThrow(COLUMN_DATE)) + ); + conversions.add(conversion); + } while (cursor.moveToNext()); + } + cursor.close(); + db.close(); + return conversions; + } + + public void clearHistory() { + SQLiteDatabase db = this.getWritableDatabase(); + db.delete(TABLE_CONVERSIONS, null, null); + db.close(); + } +} + diff --git a/app/src/main/java/com/example/conversordemoedas2/MainActivity.java b/app/src/main/java/com/example/conversordemoedas2/MainActivity.java new file mode 100644 index 0000000..c24d24d --- /dev/null +++ b/app/src/main/java/com/example/conversordemoedas2/MainActivity.java @@ -0,0 +1,266 @@ +package com.example.conversordemoedas2; + +import android.content.Intent; +import android.os.Bundle; +import android.text.Editable; +import android.text.TextWatcher; +import android.text.TextUtils; +import android.view.View; +import android.view.animation.AnimationUtils; +import android.widget.AdapterView; +import android.widget.ArrayAdapter; +import android.widget.ImageView; +import android.widget.ListView; +import android.widget.Spinner; +import android.widget.TextView; +import android.widget.Toast; + +import androidx.activity.EdgeToEdge; +import androidx.appcompat.app.AppCompatActivity; +import androidx.core.graphics.Insets; +import androidx.core.view.ViewCompat; +import androidx.core.view.WindowInsetsCompat; + +import com.google.android.material.button.MaterialButton; +import com.google.android.material.textfield.TextInputEditText; + +import java.util.ArrayList; +import java.util.List; + +public class MainActivity extends AppCompatActivity { + + private CurrencyConverter currencyConverter; + private TextInputEditText amountInput; + private Spinner fromCurrencySpinner; + private Spinner toCurrencySpinner; + private TextView resultText; + private TextView exchangeRateText; + private MaterialButton clearHistoryButton; + private ListView historyListView; + private ImageView swapButton; + private MaterialButton speedConverterButton; + + private List currencies; + private ConversionHistoryAdapter historyAdapter; + private boolean isUpdating = false; + + @Override + protected void onCreate(Bundle savedInstanceState) { + super.onCreate(savedInstanceState); + EdgeToEdge.enable(this); + setContentView(R.layout.activity_main); + ViewCompat.setOnApplyWindowInsetsListener(findViewById(R.id.main), (v, insets) -> { + Insets systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars()); + v.setPadding(systemBars.left, systemBars.top, systemBars.right, systemBars.bottom); + return insets; + }); + + initializeViews(); + initializeCurrencyConverter(); + setupSpinners(); + setupListeners(); + loadHistory(); + + // Executar demonstração no log (opcional) + // CurrencyConverterDemo.runDemo(this); + } + + private void initializeViews() { + amountInput = findViewById(R.id.amountInput); + fromCurrencySpinner = findViewById(R.id.fromCurrencySpinner); + toCurrencySpinner = findViewById(R.id.toCurrencySpinner); + resultText = findViewById(R.id.resultText); + exchangeRateText = findViewById(R.id.exchangeRateText); + clearHistoryButton = findViewById(R.id.clearHistoryButton); + historyListView = findViewById(R.id.historyListView); + swapButton = findViewById(R.id.swapButton); + speedConverterButton = findViewById(R.id.speedConverterButton); + } + + private void initializeCurrencyConverter() { + currencyConverter = new CurrencyConverter(this); + currencies = currencyConverter.getAvailableCurrencies(); + } + + private void setupSpinners() { + // Criar lista de strings para os spinners + List currencyStrings = new ArrayList<>(); + for (Currency currency : currencies) { + currencyStrings.add(currency.toString()); + } + + ArrayAdapter adapter = new ArrayAdapter<>(this, + android.R.layout.simple_spinner_item, currencyStrings); + adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); + + fromCurrencySpinner.setAdapter(adapter); + toCurrencySpinner.setAdapter(adapter); + + // Selecionar USD como padrão para origem e BRL para destino + for (int i = 0; i < currencies.size(); i++) { + if (currencies.get(i).getCode().equals("USD")) { + fromCurrencySpinner.setSelection(i); + } + if (currencies.get(i).getCode().equals("BRL")) { + toCurrencySpinner.setSelection(i); + } + } + + // Atualizar conversão quando as moedas mudarem + fromCurrencySpinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() { + @Override + public void onItemSelected(AdapterView parent, View view, int position, long id) { + if (!isUpdating) { + updateConversion(); + updateExchangeRate(); + } + } + + @Override + public void onNothingSelected(AdapterView parent) {} + }); + + toCurrencySpinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() { + @Override + public void onItemSelected(AdapterView parent, View view, int position, long id) { + if (!isUpdating) { + updateConversion(); + updateExchangeRate(); + } + } + + @Override + public void onNothingSelected(AdapterView parent) {} + }); + } + + private void setupListeners() { + // Conversão automática quando o texto muda + amountInput.addTextChangedListener(new TextWatcher() { + @Override + public void beforeTextChanged(CharSequence s, int start, int count, int after) {} + + @Override + public void onTextChanged(CharSequence s, int start, int before, int count) {} + + @Override + public void afterTextChanged(Editable s) { + updateConversion(); + } + }); + + // Botão de trocar moedas + swapButton.setOnClickListener(v -> swapCurrencies()); + + // Botão limpar histórico + clearHistoryButton.setOnClickListener(v -> clearHistory()); + + // Botão conversor de velocidade + speedConverterButton.setOnClickListener(v -> { + Intent intent = new Intent(MainActivity.this, SpeedConverterActivity.class); + startActivity(intent); + }); + + // Botão conversor de medidas + MaterialButton measurementConverterButton = findViewById(R.id.measurementConverterButton); + measurementConverterButton.setOnClickListener(v -> { + Intent intent = new Intent(MainActivity.this, MeasurementConverterActivity.class); + startActivity(intent); + }); + } + + private void updateConversion() { + String amountString = amountInput.getText().toString().trim(); + + if (TextUtils.isEmpty(amountString)) { + resultText.setText("Digite um valor para converter"); + resultText.setTextColor(getResources().getColor(R.color.text_secondary)); + return; + } + + try { + double amount = Double.parseDouble(amountString); + + if (amount <= 0) { + resultText.setText("Digite um valor positivo"); + resultText.setTextColor(getResources().getColor(R.color.error_color)); + return; + } + + Currency fromCurrency = currencies.get(fromCurrencySpinner.getSelectedItemPosition()); + Currency toCurrency = currencies.get(toCurrencySpinner.getSelectedItemPosition()); + + double result = currencyConverter.convert(amount, fromCurrency.getCode(), toCurrency.getCode()); + + // Mostrar resultado com animação + String formattedResult = currencyConverter.formatCurrency(result, toCurrency.getCode()); + resultText.setText(formattedResult); + resultText.setTextColor(getResources().getColor(R.color.primary_color)); + + // Animação suave + resultText.startAnimation(AnimationUtils.loadAnimation(this, android.R.anim.fade_in)); + + // Salvar no histórico apenas se for uma conversão válida + if (amount > 0) { + currencyConverter.insertConversion(fromCurrency.getCode(), toCurrency.getCode(), amount, result); + loadHistory(); + } + + } catch (NumberFormatException e) { + resultText.setText("Digite um valor válido"); + resultText.setTextColor(getResources().getColor(R.color.error_color)); + } catch (Exception e) { + resultText.setText("Erro na conversão"); + resultText.setTextColor(getResources().getColor(R.color.error_color)); + } + } + + private void swapCurrencies() { + isUpdating = true; + + int fromPosition = fromCurrencySpinner.getSelectedItemPosition(); + int toPosition = toCurrencySpinner.getSelectedItemPosition(); + + fromCurrencySpinner.setSelection(toPosition); + toCurrencySpinner.setSelection(fromPosition); + + // Animação do botão + swapButton.startAnimation(AnimationUtils.loadAnimation(this, android.R.anim.fade_in)); + + isUpdating = false; + + // Atualizar conversão após a troca + updateConversion(); + updateExchangeRate(); + + Toast.makeText(this, "Moedas trocadas!", Toast.LENGTH_SHORT).show(); + } + + private void updateExchangeRate() { + try { + Currency fromCurrency = currencies.get(fromCurrencySpinner.getSelectedItemPosition()); + Currency toCurrency = currencies.get(toCurrencySpinner.getSelectedItemPosition()); + + double rate = currencyConverter.getExchangeRate(fromCurrency.getCode(), toCurrency.getCode()); + + String rateText = String.format("1 %s = %.4f %s", + fromCurrency.getCode(), rate, toCurrency.getCode()); + exchangeRateText.setText(rateText); + + } catch (Exception e) { + exchangeRateText.setText("Erro ao calcular taxa"); + } + } + + private void loadHistory() { + List history = currencyConverter.getConversionHistory(); + historyAdapter = new ConversionHistoryAdapter(this, history); + historyListView.setAdapter(historyAdapter); + } + + private void clearHistory() { + currencyConverter.clearHistory(); + loadHistory(); + Toast.makeText(this, "Histórico limpo", Toast.LENGTH_SHORT).show(); + } +} \ No newline at end of file diff --git a/app/src/main/java/com/example/conversordemoedas2/MeasurementConverter.java b/app/src/main/java/com/example/conversordemoedas2/MeasurementConverter.java new file mode 100644 index 0000000..69f619e --- /dev/null +++ b/app/src/main/java/com/example/conversordemoedas2/MeasurementConverter.java @@ -0,0 +1,93 @@ +package com.example.conversordemoedas2; + +import java.util.ArrayList; +import java.util.Arrays; +import java.util.LinkedHashMap; +import java.util.List; +import java.util.Map; + +public class MeasurementConverter { + + private static final String CAT_LENGTH = "Comprimento"; + private static final String CAT_WEIGHT = "Peso"; + private static final String CAT_TEMPERATURE = "Temperatura"; + + private static final List LENGTH_UNITS = Arrays.asList("mm","cm","m","km","in","ft","yd","mi"); + private static final List WEIGHT_UNITS = Arrays.asList("mg","g","kg","t","oz","lb"); + private static final List TEMP_UNITS = Arrays.asList("°C","°F","K"); + + private static final Map LENGTH_TO_METER = new LinkedHashMap<>(); + private static final Map WEIGHT_TO_KG = new LinkedHashMap<>(); + + static { + // Comprimento -> metros + LENGTH_TO_METER.put("mm", 0.001); + LENGTH_TO_METER.put("cm", 0.01); + LENGTH_TO_METER.put("m", 1.0); + LENGTH_TO_METER.put("km", 1000.0); + LENGTH_TO_METER.put("in", 0.0254); + LENGTH_TO_METER.put("ft", 0.3048); + LENGTH_TO_METER.put("yd", 0.9144); + LENGTH_TO_METER.put("mi", 1609.344); + + // Peso -> quilogramas + WEIGHT_TO_KG.put("mg", 0.000001); + WEIGHT_TO_KG.put("g", 0.001); + WEIGHT_TO_KG.put("kg", 1.0); + WEIGHT_TO_KG.put("t", 1000.0); + WEIGHT_TO_KG.put("oz", 0.028349523125); + WEIGHT_TO_KG.put("lb", 0.45359237); + } + + public List getUnitsForCategory(String category) { + if (CAT_LENGTH.equals(category)) return new ArrayList<>(LENGTH_UNITS); + if (CAT_WEIGHT.equals(category)) return new ArrayList<>(WEIGHT_UNITS); + if (CAT_TEMPERATURE.equals(category)) return new ArrayList<>(TEMP_UNITS); + return new ArrayList<>(); + } + + public double convert(String category, double value, String from, String to) { + if (from.equals(to)) return value; + if (CAT_LENGTH.equals(category)) { + double meters = value * LENGTH_TO_METER.get(from); + return meters / LENGTH_TO_METER.get(to); + } + if (CAT_WEIGHT.equals(category)) { + double kg = value * WEIGHT_TO_KG.get(from); + return kg / WEIGHT_TO_KG.get(to); + } + if (CAT_TEMPERATURE.equals(category)) { + // normalize to Celsius + double c; + if ("°C".equals(from)) c = value; + else if ("°F".equals(from)) c = (value - 32.0) * 5.0 / 9.0; + else c = value - 273.15; // K -> C + if ("°C".equals(to)) return c; + if ("°F".equals(to)) return c * 9.0 / 5.0 + 32.0; + return c + 273.15; // to K + } + throw new IllegalArgumentException("Categoria inválida"); + } + + public double rate(String category, String from, String to) { + if (from.equals(to)) return 1.0; + if (CAT_LENGTH.equals(category)) { + return LENGTH_TO_METER.get(from) / LENGTH_TO_METER.get(to); + } + if (CAT_WEIGHT.equals(category)) { + return WEIGHT_TO_KG.get(from) / WEIGHT_TO_KG.get(to); + } + if (CAT_TEMPERATURE.equals(category)) { + // temperature rates aren't constant; show delta conversion for 1 unit + return convert(category, 1.0, from, to); + } + return 1.0; + } + + public String format(String category, double value, String unit) { + if (CAT_TEMPERATURE.equals(category)) { + return String.format("%.2f %s", value, unit); + } + return String.format("%.4f %s", value, unit); + } +} diff --git a/app/src/main/java/com/example/conversordemoedas2/MeasurementConverterActivity.java b/app/src/main/java/com/example/conversordemoedas2/MeasurementConverterActivity.java new file mode 100644 index 0000000..bd7c4a0 --- /dev/null +++ b/app/src/main/java/com/example/conversordemoedas2/MeasurementConverterActivity.java @@ -0,0 +1,170 @@ +package com.example.conversordemoedas2; + +import android.os.Bundle; +import android.text.Editable; +import android.text.TextWatcher; +import android.text.TextUtils; +import android.view.animation.AnimationUtils; +import android.widget.AdapterView; +import android.widget.ArrayAdapter; +import android.widget.Spinner; +import android.widget.TextView; + +import androidx.activity.EdgeToEdge; +import androidx.appcompat.app.AppCompatActivity; +import androidx.core.graphics.Insets; +import androidx.core.view.ViewCompat; +import androidx.core.view.WindowInsetsCompat; + +import com.google.android.material.textfield.TextInputEditText; + +import java.util.ArrayList; +import java.util.Arrays; +import java.util.List; + +public class MeasurementConverterActivity extends AppCompatActivity { + + private MeasurementConverter measurementConverter; + private Spinner categorySpinner; + private Spinner fromUnitSpinner; + private Spinner toUnitSpinner; + private TextInputEditText amountInput; + private TextView resultText; + private TextView rateText; + + private List categories; + + @Override + protected void onCreate(Bundle savedInstanceState) { + super.onCreate(savedInstanceState); + EdgeToEdge.enable(this); + setContentView(R.layout.fragment_measurement_converter); + ViewCompat.setOnApplyWindowInsetsListener(findViewById(R.id.measureMain), (v, insets) -> { + Insets systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars()); + v.setPadding(systemBars.left, systemBars.top, systemBars.right, systemBars.bottom); + return insets; + }); + + initializeViews(); + initializeConverter(); + setupCategorySpinner(); + setupListeners(); + } + + private void initializeViews() { + categorySpinner = findViewById(R.id.categorySpinner); + fromUnitSpinner = findViewById(R.id.measureFromUnitSpinner); + toUnitSpinner = findViewById(R.id.measureToUnitSpinner); + amountInput = findViewById(R.id.measureAmountInput); + resultText = findViewById(R.id.measureResultText); + rateText = findViewById(R.id.measureRateText); + + findViewById(R.id.openCurrencyConverterButton).setOnClickListener(v -> { + startActivity(new android.content.Intent(this, MainActivity.class)); + }); + findViewById(R.id.openSpeedConverterButton).setOnClickListener(v -> { + startActivity(new android.content.Intent(this, SpeedConverterActivity.class)); + }); + } + + private void initializeConverter() { + measurementConverter = new MeasurementConverter(); + categories = new ArrayList<>(Arrays.asList("Comprimento", "Peso", "Temperatura")); + } + + private void setupCategorySpinner() { + ArrayAdapter categoryAdapter = new ArrayAdapter<>(this, + android.R.layout.simple_spinner_item, categories); + categoryAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); + categorySpinner.setAdapter(categoryAdapter); + + categorySpinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() { + @Override + public void onItemSelected(AdapterView parent, android.view.View view, int position, long id) { + populateUnits(); + updateConversion(); + updateRate(); + } + @Override + public void onNothingSelected(AdapterView parent) {} + }); + } + + private void populateUnits() { + String category = (String) categorySpinner.getSelectedItem(); + List units = measurementConverter.getUnitsForCategory(category); + ArrayAdapter unitsAdapter = new ArrayAdapter<>(this, + android.R.layout.simple_spinner_item, units); + unitsAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); + fromUnitSpinner.setAdapter(unitsAdapter); + toUnitSpinner.setAdapter(unitsAdapter); + if (!units.isEmpty()) { + fromUnitSpinner.setSelection(0); + toUnitSpinner.setSelection(Math.min(1, units.size() - 1)); + } + fromUnitSpinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() { + @Override + public void onItemSelected(AdapterView parent, android.view.View view, int position, long id) { + updateConversion(); + updateRate(); + } + @Override + public void onNothingSelected(AdapterView parent) {} + }); + toUnitSpinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() { + @Override + public void onItemSelected(AdapterView parent, android.view.View view, int position, long id) { + updateConversion(); + updateRate(); + } + @Override + public void onNothingSelected(AdapterView parent) {} + }); + } + + private void setupListeners() { + amountInput.addTextChangedListener(new TextWatcher() { + @Override public void beforeTextChanged(CharSequence s, int start, int count, int after) {} + @Override public void onTextChanged(CharSequence s, int start, int before, int count) {} + @Override public void afterTextChanged(Editable s) { updateConversion(); } + }); + } + + private void updateConversion() { + String input = amountInput.getText() != null ? amountInput.getText().toString().trim() : ""; + if (TextUtils.isEmpty(input)) { + resultText.setText("Digite um valor para converter"); + resultText.setTextColor(getResources().getColor(R.color.text_secondary)); + return; + } + try { + double value = Double.parseDouble(input); + String category = (String) categorySpinner.getSelectedItem(); + String from = (String) fromUnitSpinner.getSelectedItem(); + String to = (String) toUnitSpinner.getSelectedItem(); + double result = measurementConverter.convert(category, value, from, to); + String formatted = measurementConverter.format(category, result, to); + resultText.setText(formatted); + resultText.setTextColor(getResources().getColor(R.color.accent_color)); + resultText.startAnimation(AnimationUtils.loadAnimation(this, android.R.anim.fade_in)); + } catch (NumberFormatException e) { + resultText.setText("Digite um valor válido"); + resultText.setTextColor(getResources().getColor(R.color.error_color)); + } catch (Exception e) { + resultText.setText("Erro na conversão"); + resultText.setTextColor(getResources().getColor(R.color.error_color)); + } + } + + private void updateRate() { + try { + String category = (String) categorySpinner.getSelectedItem(); + String from = (String) fromUnitSpinner.getSelectedItem(); + String to = (String) toUnitSpinner.getSelectedItem(); + double rate = measurementConverter.rate(category, from, to); + rateText.setText(String.format("1 %s = %.6f %s", from, rate, to)); + } catch (Exception e) { + rateText.setText("Selecione as unidades"); + } + } +} diff --git a/app/src/main/java/com/example/conversordemoedas2/SpeedConverter.java b/app/src/main/java/com/example/conversordemoedas2/SpeedConverter.java new file mode 100644 index 0000000..540b248 --- /dev/null +++ b/app/src/main/java/com/example/conversordemoedas2/SpeedConverter.java @@ -0,0 +1,156 @@ +package com.example.conversordemoedas2; + +import android.content.Context; +import java.util.ArrayList; +import java.util.List; + +public class SpeedConverter { + + private DatabaseHelper dbHelper; + + // Unidades de velocidade com fatores de conversão para m/s (metros por segundo) + private static final Object[][] SPEED_UNITS = { + // ID, Símbolo, Fator para m/s, Descrição + {1, "m/s", 1.0, "Metros por segundo"}, + {2, "km/h", 0.277778, "Quilômetros por hora"}, + {3, "mph", 0.44704, "Milhas por hora"}, + {4, "ft/s", 0.3048, "Pés por segundo"}, + {5, "knot", 0.514444, "Nós"}, + {6, "mach", 343.0, "Mach"}, + {7, "c", 299792458.0, "Velocidade da luz"}, + {8, "fps", 0.3048, "Frames por segundo"}, + {9, "rpm", 0.10472, "Rotações por minuto"}, + {10, "deg/s", 0.0174533, "Graus por segundo"} + }; + + public SpeedConverter(Context context) { + this.dbHelper = new DatabaseHelper(context); + } + + /** + * Converte velocidade de uma unidade para outra + * @param value Valor a ser convertido + * @param fromUnit Unidade de origem + * @param toUnit Unidade de destino + * @return Valor convertido + */ + public double convert(double value, String fromUnit, String toUnit) { + if (fromUnit.equals(toUnit)) { + return value; + } + + double fromFactor = getFactor(fromUnit); + double toFactor = getFactor(toUnit); + + if (fromFactor == 0 || toFactor == 0) { + throw new IllegalArgumentException("Unidade não encontrada"); + } + + // Converter para m/s primeiro, depois para a unidade de destino + double valueInMs = value * fromFactor; + double result = valueInMs / toFactor; + + return result; + } + + /** + * Obtém o fator de conversão para uma unidade + * @param unit Unidade de velocidade + * @return Fator de conversão + */ + private double getFactor(String unit) { + for (Object[] speedUnit : SPEED_UNITS) { + if (speedUnit[1].equals(unit)) { + return (Double) speedUnit[2]; + } + } + return 0; + } + + /** + * Obtém todas as unidades de velocidade disponíveis + * @return Lista de unidades + */ + public List getAvailableUnits() { + List units = new ArrayList<>(); + for (Object[] speedUnit : SPEED_UNITS) { + units.add(new SpeedUnit( + (int) speedUnit[0], + (String) speedUnit[1], + (String) speedUnit[3], + (Double) speedUnit[2] + )); + } + return units; + } + + /** + * Obtém uma unidade pelo código + * @param code Código da unidade + * @return Objeto SpeedUnit ou null se não encontrado + */ + public SpeedUnit getUnitByCode(String code) { + for (Object[] speedUnit : SPEED_UNITS) { + if (speedUnit[1].equals(code)) { + return new SpeedUnit( + (int) speedUnit[0], + (String) speedUnit[1], + (String) speedUnit[3], + (Double) speedUnit[2] + ); + } + } + return null; + } + + /** + * Formata um valor de velocidade com símbolo da unidade + * @param value Valor + * @param unitCode Código da unidade + * @return String formatada + */ + public String formatSpeed(double value, String unitCode) { + SpeedUnit unit = getUnitByCode(unitCode); + if (unit != null) { + return String.format("%.2f %s", value, unit.getSymbol()); + } + return String.format("%.2f %s", value, unitCode); + } + + /** + * Calcula a taxa de conversão entre duas unidades + * @param fromUnit Unidade de origem + * @param toUnit Unidade de destino + * @return Taxa de conversão + */ + public double getConversionRate(String fromUnit, String toUnit) { + if (fromUnit.equals(toUnit)) { + return 1.0; + } + + double fromFactor = getFactor(fromUnit); + double toFactor = getFactor(toUnit); + + if (fromFactor == 0 || toFactor == 0) { + throw new IllegalArgumentException("Unidade não encontrada"); + } + + return fromFactor / toFactor; + } + + /** + * Obtém exemplos de conversão para demonstração + * @return Lista de exemplos + */ + public List getExamples() { + List examples = new ArrayList<>(); + examples.add("🚗 100 km/h = 27.78 m/s"); + examples.add("✈️ 500 mph = 223.52 m/s"); + examples.add("🏃 10 m/s = 36 km/h"); + examples.add("🚢 20 knot = 10.29 m/s"); + examples.add("🚀 1 mach = 343 m/s"); + return examples; + } +} + + diff --git a/app/src/main/java/com/example/conversordemoedas2/SpeedConverterActivity.java b/app/src/main/java/com/example/conversordemoedas2/SpeedConverterActivity.java new file mode 100644 index 0000000..0289c94 --- /dev/null +++ b/app/src/main/java/com/example/conversordemoedas2/SpeedConverterActivity.java @@ -0,0 +1,219 @@ +package com.example.conversordemoedas2; + +import android.os.Bundle; +import android.text.Editable; +import android.text.TextWatcher; +import android.text.TextUtils; +import android.view.View; +import android.view.animation.AnimationUtils; +import android.widget.AdapterView; +import android.widget.ArrayAdapter; +import android.widget.ImageView; +import android.widget.Spinner; +import android.widget.TextView; + +import androidx.activity.EdgeToEdge; +import androidx.appcompat.app.AppCompatActivity; +import androidx.core.graphics.Insets; +import androidx.core.view.ViewCompat; +import androidx.core.view.WindowInsetsCompat; +import androidx.appcompat.widget.Toolbar; + +import com.google.android.material.textfield.TextInputEditText; + +import java.util.ArrayList; +import java.util.List; + +public class SpeedConverterActivity extends AppCompatActivity { + + private SpeedConverter speedConverter; + private TextInputEditText speedAmountInput; + private Spinner fromSpeedSpinner; + private Spinner toSpeedSpinner; + private TextView speedResultText; + private TextView speedRateText; + private ImageView speedSwapButton; + + private List speedUnits; + private boolean isUpdating = false; + + @Override + protected void onCreate(Bundle savedInstanceState) { + super.onCreate(savedInstanceState); + EdgeToEdge.enable(this); + setContentView(R.layout.fragment_speed_converter); + ViewCompat.setOnApplyWindowInsetsListener(findViewById(R.id.speedMain), (v, insets) -> { + Insets systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars()); + v.setPadding(systemBars.left, systemBars.top, systemBars.right, systemBars.bottom); + return insets; + }); + // Removida Toolbar! + findViewById(R.id.currencyConverterButton).setOnClickListener(v -> finish()); + + initializeViews(); + initializeSpeedConverter(); + setupSpinners(); + setupListeners(); + } + + private void initializeViews() { + speedAmountInput = findViewById(R.id.speedAmountInput); + fromSpeedSpinner = findViewById(R.id.speedFromUnitSpinner); + toSpeedSpinner = findViewById(R.id.speedToUnitSpinner); + speedResultText = findViewById(R.id.speedResultText); + speedRateText = findViewById(R.id.speedRateText); + speedSwapButton = findViewById(R.id.speedSwapButton); + } + + private void initializeSpeedConverter() { + speedConverter = new SpeedConverter(this); + speedUnits = speedConverter.getAvailableUnits(); + } + + private void setupSpinners() { + // Criar lista de strings para os spinners + List unitStrings = new ArrayList<>(); + for (SpeedUnit unit : speedUnits) { + unitStrings.add(unit.toString()); + } + + ArrayAdapter adapter = new ArrayAdapter<>(this, + android.R.layout.simple_spinner_item, unitStrings); + adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); + + fromSpeedSpinner.setAdapter(adapter); + toSpeedSpinner.setAdapter(adapter); + + // Selecionar m/s como padrão para origem e km/h para destino + for (int i = 0; i < speedUnits.size(); i++) { + if (speedUnits.get(i).getSymbol().equals("m/s")) { + fromSpeedSpinner.setSelection(i); + } + if (speedUnits.get(i).getSymbol().equals("km/h")) { + toSpeedSpinner.setSelection(i); + } + } + + // Atualizar conversão quando as unidades mudarem + fromSpeedSpinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() { + @Override + public void onItemSelected(AdapterView parent, View view, int position, long id) { + if (!isUpdating) { + updateConversion(); + updateRate(); + } + } + + @Override + public void onNothingSelected(AdapterView parent) {} + }); + + toSpeedSpinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() { + @Override + public void onItemSelected(AdapterView parent, View view, int position, long id) { + if (!isUpdating) { + updateConversion(); + updateRate(); + } + } + + @Override + public void onNothingSelected(AdapterView parent) {} + }); + } + + private void setupListeners() { + // Conversão automática quando o texto muda + speedAmountInput.addTextChangedListener(new TextWatcher() { + @Override + public void beforeTextChanged(CharSequence s, int start, int count, int after) {} + + @Override + public void onTextChanged(CharSequence s, int start, int before, int count) {} + + @Override + public void afterTextChanged(Editable s) { + updateConversion(); + } + }); + + // Botão de trocar unidades + speedSwapButton.setOnClickListener(v -> swapUnits()); + } + + private void updateConversion() { + String amountString = speedAmountInput.getText().toString().trim(); + + if (TextUtils.isEmpty(amountString)) { + speedResultText.setText("Digite um valor para converter"); + speedResultText.setTextColor(getResources().getColor(R.color.text_secondary)); + return; + } + + try { + double amount = Double.parseDouble(amountString); + + if (amount < 0) { + speedResultText.setText("Digite um valor positivo"); + speedResultText.setTextColor(getResources().getColor(R.color.error_color)); + return; + } + + SpeedUnit fromUnit = speedUnits.get(fromSpeedSpinner.getSelectedItemPosition()); + SpeedUnit toUnit = speedUnits.get(toSpeedSpinner.getSelectedItemPosition()); + + double result = speedConverter.convert(amount, fromUnit.getSymbol(), toUnit.getSymbol()); + + // Mostrar resultado com animação + String formattedResult = speedConverter.formatSpeed(result, toUnit.getSymbol()); + speedResultText.setText(formattedResult); + speedResultText.setTextColor(getResources().getColor(R.color.accent_color)); + + // Animação suave + speedResultText.startAnimation(AnimationUtils.loadAnimation(this, android.R.anim.fade_in)); + + } catch (NumberFormatException e) { + speedResultText.setText("Digite um valor válido"); + speedResultText.setTextColor(getResources().getColor(R.color.error_color)); + } catch (Exception e) { + speedResultText.setText("Erro na conversão"); + speedResultText.setTextColor(getResources().getColor(R.color.error_color)); + } + } + + private void swapUnits() { + isUpdating = true; + + int fromPosition = fromSpeedSpinner.getSelectedItemPosition(); + int toPosition = toSpeedSpinner.getSelectedItemPosition(); + + fromSpeedSpinner.setSelection(toPosition); + toSpeedSpinner.setSelection(fromPosition); + + // Animação do botão + speedSwapButton.startAnimation(AnimationUtils.loadAnimation(this, android.R.anim.fade_in)); + + isUpdating = false; + + // Atualizar conversão após a troca + updateConversion(); + updateRate(); + } + + private void updateRate() { + try { + SpeedUnit fromUnit = speedUnits.get(fromSpeedSpinner.getSelectedItemPosition()); + SpeedUnit toUnit = speedUnits.get(toSpeedSpinner.getSelectedItemPosition()); + + double rate = speedConverter.getConversionRate(fromUnit.getSymbol(), toUnit.getSymbol()); + + String rateText = String.format("1 %s = %.4f %s", + fromUnit.getSymbol(), rate, toUnit.getSymbol()); + speedRateText.setText(rateText); + + } catch (Exception e) { + speedRateText.setText("Erro ao calcular taxa"); + } + } +} + diff --git a/app/src/main/java/com/example/conversordemoedas2/SpeedUnit.java b/app/src/main/java/com/example/conversordemoedas2/SpeedUnit.java new file mode 100644 index 0000000..00cc629 --- /dev/null +++ b/app/src/main/java/com/example/conversordemoedas2/SpeedUnit.java @@ -0,0 +1,36 @@ +package com.example.conversordemoedas2; + +public class SpeedUnit { + private int id; + private String symbol; + private String name; + private double factorToMs; + + public SpeedUnit(int id, String symbol, String name, double factorToMs) { + this.id = id; + this.symbol = symbol; + this.name = name; + this.factorToMs = factorToMs; + } + + // Getters + public int getId() { return id; } + public String getSymbol() { return symbol; } + public String getName() { return name; } + public double getFactorToMs() { return factorToMs; } + + // Setters + public void setId(int id) { this.id = id; } + public void setSymbol(String symbol) { this.symbol = symbol; } + public void setName(String name) { this.name = name; } + public void setFactorToMs(double factorToMs) { this.factorToMs = factorToMs; } + + @Override + public String toString() { + return symbol + " - " + name; + } +} + + + + diff --git a/app/src/main/res/drawable/circle_background.xml b/app/src/main/res/drawable/circle_background.xml new file mode 100644 index 0000000..4c17115 --- /dev/null +++ b/app/src/main/res/drawable/circle_background.xml @@ -0,0 +1,10 @@ + + + + + + + + + diff --git a/app/src/main/res/drawable/circle_background_speed.xml b/app/src/main/res/drawable/circle_background_speed.xml new file mode 100644 index 0000000..e250c95 --- /dev/null +++ b/app/src/main/res/drawable/circle_background_speed.xml @@ -0,0 +1,9 @@ + + + + + + + + diff --git a/app/src/main/res/drawable/ic_arrow_back.xml b/app/src/main/res/drawable/ic_arrow_back.xml new file mode 100644 index 0000000..04acb54 --- /dev/null +++ b/app/src/main/res/drawable/ic_arrow_back.xml @@ -0,0 +1,11 @@ + + + + + diff --git a/app/src/main/res/drawable/ic_launcher_background.xml b/app/src/main/res/drawable/ic_launcher_background.xml new file mode 100644 index 0000000..07d5da9 --- /dev/null +++ b/app/src/main/res/drawable/ic_launcher_background.xml @@ -0,0 +1,170 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/app/src/main/res/drawable/ic_launcher_foreground.xml b/app/src/main/res/drawable/ic_launcher_foreground.xml new file mode 100644 index 0000000..2b068d1 --- /dev/null +++ b/app/src/main/res/drawable/ic_launcher_foreground.xml @@ -0,0 +1,30 @@ + + + + + + + + + + + \ No newline at end of file diff --git a/app/src/main/res/drawable/ic_swap.xml b/app/src/main/res/drawable/ic_swap.xml new file mode 100644 index 0000000..5e30b65 --- /dev/null +++ b/app/src/main/res/drawable/ic_swap.xml @@ -0,0 +1,15 @@ + + + + + + + + diff --git a/app/src/main/res/drawable/spinner_background.xml b/app/src/main/res/drawable/spinner_background.xml new file mode 100644 index 0000000..fbc31d5 --- /dev/null +++ b/app/src/main/res/drawable/spinner_background.xml @@ -0,0 +1,11 @@ + + + + + + + + + + diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml new file mode 100644 index 0000000..53bbb53 --- /dev/null +++ b/app/src/main/res/layout/activity_main.xml @@ -0,0 +1,338 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + \ No newline at end of file diff --git a/app/src/main/res/layout/fragment_measurement_converter.xml b/app/src/main/res/layout/fragment_measurement_converter.xml new file mode 100644 index 0000000..5b2cf9d --- /dev/null +++ b/app/src/main/res/layout/fragment_measurement_converter.xml @@ -0,0 +1,214 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/app/src/main/res/layout/fragment_speed_converter.xml b/app/src/main/res/layout/fragment_speed_converter.xml new file mode 100644 index 0000000..6b52980 --- /dev/null +++ b/app/src/main/res/layout/fragment_speed_converter.xml @@ -0,0 +1,300 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml b/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml new file mode 100644 index 0000000..6f3b755 --- /dev/null +++ b/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml @@ -0,0 +1,6 @@ + + + + + + \ No newline at end of file diff --git a/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml b/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml new file mode 100644 index 0000000..6f3b755 --- /dev/null +++ b/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml @@ -0,0 +1,6 @@ + + + + + + \ No newline at end of file diff --git a/app/src/main/res/mipmap-hdpi/ic_launcher.webp b/app/src/main/res/mipmap-hdpi/ic_launcher.webp new file mode 100644 index 0000000..c209e78 Binary files /dev/null and b/app/src/main/res/mipmap-hdpi/ic_launcher.webp differ diff --git a/app/src/main/res/mipmap-hdpi/ic_launcher_round.webp b/app/src/main/res/mipmap-hdpi/ic_launcher_round.webp new file mode 100644 index 0000000..b2dfe3d Binary files /dev/null and b/app/src/main/res/mipmap-hdpi/ic_launcher_round.webp differ diff --git a/app/src/main/res/mipmap-mdpi/ic_launcher.webp b/app/src/main/res/mipmap-mdpi/ic_launcher.webp new file mode 100644 index 0000000..4f0f1d6 Binary files /dev/null and b/app/src/main/res/mipmap-mdpi/ic_launcher.webp differ diff --git a/app/src/main/res/mipmap-mdpi/ic_launcher_round.webp b/app/src/main/res/mipmap-mdpi/ic_launcher_round.webp new file mode 100644 index 0000000..62b611d Binary files /dev/null and b/app/src/main/res/mipmap-mdpi/ic_launcher_round.webp differ diff --git a/app/src/main/res/mipmap-xhdpi/ic_launcher.webp b/app/src/main/res/mipmap-xhdpi/ic_launcher.webp new file mode 100644 index 0000000..948a307 Binary files /dev/null and b/app/src/main/res/mipmap-xhdpi/ic_launcher.webp differ diff --git a/app/src/main/res/mipmap-xhdpi/ic_launcher_round.webp b/app/src/main/res/mipmap-xhdpi/ic_launcher_round.webp new file mode 100644 index 0000000..1b9a695 Binary files /dev/null and b/app/src/main/res/mipmap-xhdpi/ic_launcher_round.webp differ diff --git a/app/src/main/res/mipmap-xxhdpi/ic_launcher.webp b/app/src/main/res/mipmap-xxhdpi/ic_launcher.webp new file mode 100644 index 0000000..28d4b77 Binary files /dev/null and b/app/src/main/res/mipmap-xxhdpi/ic_launcher.webp differ diff --git a/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.webp b/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.webp new file mode 100644 index 0000000..9287f50 Binary files /dev/null and b/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.webp differ diff --git a/app/src/main/res/mipmap-xxxhdpi/ic_launcher.webp b/app/src/main/res/mipmap-xxxhdpi/ic_launcher.webp new file mode 100644 index 0000000..aa7d642 Binary files /dev/null and b/app/src/main/res/mipmap-xxxhdpi/ic_launcher.webp differ diff --git a/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.webp b/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.webp new file mode 100644 index 0000000..9126ae3 Binary files /dev/null and b/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.webp differ diff --git a/app/src/main/res/values-night/themes.xml b/app/src/main/res/values-night/themes.xml new file mode 100644 index 0000000..5efe0de --- /dev/null +++ b/app/src/main/res/values-night/themes.xml @@ -0,0 +1,7 @@ + + + + \ No newline at end of file diff --git a/app/src/main/res/values/colors.xml b/app/src/main/res/values/colors.xml new file mode 100644 index 0000000..e533e8a --- /dev/null +++ b/app/src/main/res/values/colors.xml @@ -0,0 +1,26 @@ + + + + #6366F1 + #4F46E5 + #10B981 + + + #1F2937 + #6B7280 + #9CA3AF + + + #F8FAFC + #F3F4F6 + #80FFFFFF + + + #10B981 + #EF4444 + #F59E0B + + + #FFFFFF + #000000 + \ No newline at end of file diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml new file mode 100644 index 0000000..7b9ad89 --- /dev/null +++ b/app/src/main/res/values/strings.xml @@ -0,0 +1,3 @@ + + conversordemoedas2 + \ No newline at end of file diff --git a/app/src/main/res/values/themes.xml b/app/src/main/res/values/themes.xml new file mode 100644 index 0000000..d184a51 --- /dev/null +++ b/app/src/main/res/values/themes.xml @@ -0,0 +1,9 @@ + + + + +