feat: 3주차 미션_레몬

Week3/.gitignore

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+*.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

Week3/app/.gitignore

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+/build

Week3/app/build.gradle.kts

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+plugins {
+    alias(libs.plugins.android.application)
+}
+
+android {
+    namespace = "com.example.week3"
+    compileSdk {
+        version = release(36) {
+            minorApiLevel = 1
+        }
+    }
+
+    defaultConfig {
+        applicationId = "com.example.week3"
+        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_11
+        targetCompatibility = JavaVersion.VERSION_11
+    }
+
+    buildFeatures {
+        viewBinding = true
+    }
+}
+
+dependencies {
+    implementation(libs.androidx.core.ktx)
+    implementation(libs.androidx.appcompat)
+    implementation(libs.material)
+    implementation(libs.androidx.activity)
+    implementation(libs.androidx.constraintlayout)
+    testImplementation(libs.junit)
+    androidTestImplementation(libs.androidx.junit)
+    androidTestImplementation(libs.androidx.espresso.core)
+    implementation(libs.androidx.navigation.fragment.ktx)
+    implementation(libs.androidx.navigation.ui.ktx)
+    implementation("com.google.code.gson:gson:2.10.1")
+    implementation("com.google.code.gson:gson:2.10.1")
+    implementation("androidx.datastore:datastore-preferences:1.0.0")
+}

Week3/app/proguard-rules.pro

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+# 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

Week3/app/src/androidTest/java/com/example/week3/ExampleInstrumentedTest.kt

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+package com.example.week3
+
+import androidx.test.platform.app.InstrumentationRegistry
+import androidx.test.ext.junit.runners.AndroidJUnit4
+
+import org.junit.Test
+import org.junit.runner.RunWith
+
+import org.junit.Assert.*
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * See [testing documentation](http://d.android.com/tools/testing).
+ */
+@RunWith(AndroidJUnit4::class)
+class ExampleInstrumentedTest {
+    @Test
+    fun useAppContext() {
+        // Context of the app under test.
+        val appContext = InstrumentationRegistry.getInstrumentation().targetContext
+        assertEquals("com.example.week3", appContext.packageName)
+    }
+}

Week3/app/src/main/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools">
+    <application
+        android:allowBackup="true"
+        android:dataExtractionRules="@xml/data_extraction_rules"
+        android:fullBackupContent="@xml/backup_rules"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/Theme.Week3">
+        <activity
+            android:name=".MainActivity"
+            android:exported="true">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>

Week3/app/src/main/java/com/example/week3/BuyAllFragment.kt

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+package com.example.week3
+
+import android.os.Bundle
+import android.view.View
+import androidx.fragment.app.Fragment
+import androidx.lifecycle.lifecycleScope
+import androidx.recyclerview.widget.GridLayoutManager
+import com.example.week3.ProductRepository
+import com.example.week3.databinding.FragmentBuyAllBinding
+import kotlinx.coroutines.launch
+
+class BuyAllFragment : Fragment(R.layout.fragment_buy_all) {
+    private var _binding: FragmentBuyAllBinding? = null
+    private val binding get() = _binding!!
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+        _binding = FragmentBuyAllBinding.bind(view)
+
+        val productAdapter = ProductAdapter { clickedItem ->
+            handleWishClick(clickedItem)
+        }
+
+        binding.recyclerGrid.apply {
+            adapter = productAdapter
+            layoutManager = GridLayoutManager(requireContext(), 2)
+        }
+        loadProducts()
+    }
+
+    private fun loadProducts() {
+        viewLifecycleOwner.lifecycleScope.launch {
+            val allProducts = ProductRepository.getProductsOnce(requireContext())
+
+            (binding.recyclerGrid.adapter as ProductAdapter).submitList(allProducts)
+        }
+    }
+
+    private fun handleWishClick(clickedItem: ProductData) {
+        val adapter = binding.recyclerGrid.adapter as ProductAdapter
+        val currentList = adapter.currentList.toMutableList()
+        val index = currentList.indexOfFirst { it.id == clickedItem.id }
+        if (index != -1) {
+            currentList[index] = clickedItem.copy(isWished = !clickedItem.isWished)
+            adapter.submitList(currentList)
+
+            viewLifecycleOwner.lifecycleScope.launch {
+                ProductRepository.saveProducts(requireContext(), currentList)
+            }
+        }
+    }
+}

Week3/app/src/main/java/com/example/week3/BuyFragment.kt

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+package com.example.week3
+
+import android.graphics.Typeface
+import android.os.Bundle
+import android.view.View
+import android.view.ViewGroup
+import android.widget.TextView
+import androidx.fragment.app.Fragment
+import com.example.week3.databinding.FragmentBuyBinding
+import com.google.android.material.tabs.TabLayout
+
+class BuyFragment : Fragment(R.layout.fragment_buy) {
+
+    private var _binding: FragmentBuyBinding? = null
+    private val binding get() = _binding!!
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+        _binding = FragmentBuyBinding.bind(view)
+
+        setupTabs()
+    }
+
+    private fun setupTabs() {
+        binding.tabLayout.addTab(binding.tabLayout.newTab().setText(getString(R.string.all)))
+        binding.tabLayout.addTab(binding.tabLayout.newTab().setText(getString(R.string.Shirts)))
+        binding.tabLayout.addTab(binding.tabLayout.newTab().setText(getString(R.string.Shoes)))
+
+        replaceTabFragment(BuyAllFragment())
+
+        binding.tabLayout.addOnTabSelectedListener(object : TabLayout.OnTabSelectedListener {
+            override fun onTabSelected(tab: TabLayout.Tab?) {
+                updateTabStyle(tab, true)
+
+                when (tab?.position) {
+                    0 -> replaceTabFragment(BuyAllFragment())
+                    1 -> replaceTabFragment(BuyTopsFragment())
+                    2 -> replaceTabFragment(BuyShoesFragment())
+                }
+            }
+
+            override fun onTabUnselected(tab: TabLayout.Tab?) {
+                updateTabStyle(tab, false)
+            }
+
+            override fun onTabReselected(tab: TabLayout.Tab?) {}
+        })
+
+        updateTabStyle(binding.tabLayout.getTabAt(0), true)
+    }
+
+    private fun replaceTabFragment(fragment: Fragment) {
+        childFragmentManager.beginTransaction()
+            .replace(R.id.tabContent, fragment)
+            .commit()
+    }
+
+    private fun updateTabStyle(tab: TabLayout.Tab?, isBold: Boolean) {
+        val tabView = (binding.tabLayout.getChildAt(0) as ViewGroup).getChildAt(tab?.position ?: 0) as ViewGroup
+        val textView = tabView.getChildAt(1) as? TextView
+
+        textView?.let {
+            it.typeface = if (isBold) Typeface.DEFAULT_BOLD else Typeface.DEFAULT
+        }
+    }
+
+    override fun onDestroyView() {
+        super.onDestroyView()
+        _binding = null
+    }
+}

Week3/app/src/main/java/com/example/week3/BuyShoesFragment.kt

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+package com.example.week3
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.fragment.app.Fragment
+
+class BuyShoesFragment : Fragment() {
+
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View {
+        return inflater.inflate(R.layout.fragment_buy_shoes, container, false)
+    }
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+
+    }
+}

Week3/app/src/main/java/com/example/week3/BuyTopsFragment.kt

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+package com.example.week3
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.fragment.app.Fragment
+
+class BuyTopsFragment : Fragment() {
+
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View {
+        return inflater.inflate(R.layout.fragment_buy_tops, container, false)
+    }
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+
+    }
+}

Week3/app/src/main/java/com/example/week3/HomeFragment.kt

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+package com.example.week3
+
+import android.os.Bundle
+import android.view.View
+import androidx.fragment.app.Fragment
+import androidx.lifecycle.lifecycleScope
+import androidx.recyclerview.widget.LinearLayoutManager
+import com.example.week3.ProductRepository
+import com.example.week3.databinding.FragmentHomeBinding
+import kotlinx.coroutines.launch
+
+class HomeFragment : Fragment(R.layout.fragment_home) {
+    private var _binding: FragmentHomeBinding? = null
+    private val binding get() = _binding!!
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+        _binding = FragmentHomeBinding.bind(view)
+
+        val productAdapter = ProductAdapter { clickedItem ->
+            handleWishClick(clickedItem)
+        }
+
+        binding.recyclerViewHome.apply {
+            adapter = productAdapter
+            layoutManager = LinearLayoutManager(requireContext(), LinearLayoutManager.HORIZONTAL, false)
+            isNestedScrollingEnabled = false
+        }
+
+        loadProducts()
+    }
+
+    private fun loadProducts() {
+        viewLifecycleOwner.lifecycleScope.launch {
+            val allProducts = ProductRepository.getProductsOnce(requireContext())
+            val adapter = binding.recyclerViewHome.adapter as ProductAdapter
+            adapter.submitList(allProducts)
+        }
+    }
+
+    private fun handleWishClick(clickedItem: ProductData) {
+        val adapter = binding.recyclerViewHome.adapter as ProductAdapter
+        val newList = adapter.currentList.toMutableList()
+
+        val index = newList.indexOfFirst { it.id == clickedItem.id }
+        if (index != -1) {
+            newList[index] = clickedItem.copy(isWished = !clickedItem.isWished)
+
+            adapter.submitList(newList)
+
+            viewLifecycleOwner.lifecycleScope.launch {
+                ProductRepository.saveProducts(requireContext(), newList)
+            }
+        }
+    }
+
+    override fun onDestroyView() {
+        super.onDestroyView()
+        _binding = null
+    }
+}