1주차 과제

app/build.gradle

@@ -2,6 +2,8 @@ plugins {
     id 'com.android.application'
     id 'org.jetbrains.kotlin.android'
     id 'kotlin-parcelize'
+    id 'kotlin-kapt'
+    id 'com.google.dagger.hilt.android'
 }
 
 android {
@@ -25,11 +27,11 @@ android {
         }
     }
     compileOptions {
-        sourceCompatibility JavaVersion.VERSION_11
-        targetCompatibility JavaVersion.VERSION_11
+        sourceCompatibility JavaVersion.VERSION_17
+        targetCompatibility JavaVersion.VERSION_17
     }
     kotlinOptions {
-        jvmTarget = '11'
+        jvmTarget = '17'
     }
 
     buildFeatures {
@@ -39,12 +41,20 @@ android {
 }
 
 dependencies {
-
     implementation 'androidx.core:core-ktx:1.8.0'
     implementation 'androidx.appcompat:appcompat:1.6.1'
     implementation 'com.google.android.material:material:1.5.0'
     implementation 'androidx.constraintlayout:constraintlayout:2.1.4'
+    implementation 'com.google.code.gson:gson:2.10.1'
     testImplementation 'junit:junit:4.13.2'
     androidTestImplementation 'androidx.test.ext:junit:1.1.5'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.5.1'
+    implementation "com.google.dagger:hilt-android:2.44"
+    kapt "com.google.dagger:hilt-compiler:2.44"
+    implementation 'androidx.activity:activity-ktx:1.2.2'
+    implementation 'androidx.fragment:fragment-ktx:1.3.3'
+}
+
+kapt {
+    correctErrorTypes true
 }

app/src/main/AndroidManifest.xml

@@ -3,6 +3,7 @@
     xmlns:tools="http://schemas.android.com/tools">
 
     <application
+        android:name=".DoSoptApplication"
         android:allowBackup="true"
         android:dataExtractionRules="@xml/data_extraction_rules"
         android:fullBackupContent="@xml/backup_rules"
@@ -15,20 +16,24 @@
         <activity
             android:name=".presentation.main.MainActivity"
             android:exported="false">
+
         </activity>
 
         <activity
             android:name=".presentation.login.LoginActivity"
-            android:exported="true">
+            android:exported="true"
+            android:windowSoftInputMode="adjustResize">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
 
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
 
-        <activity android:name=".presentation.signup.SignupActivity"
-            android:exported="false">
+        <activity
+            android:name=".presentation.signup.SignupActivity"
+            android:exported="false"
+            android:windowSoftInputMode="adjustResize">
 
         </activity>
     </application>

app/src/main/java/org/sopt/dosopttemplate/DoSoptApplication.kt

@@ -0,0 +1,8 @@
+package org.sopt.dosopttemplate
+
+import android.app.Application
+import dagger.hilt.android.HiltAndroidApp
+
+@HiltAndroidApp
+class DoSoptApplication : Application() {
+}

app/src/main/java/org/sopt/dosopttemplate/data/repository/SharedPrefRepositoryImpl.kt

@@ -0,0 +1,40 @@
+package org.sopt.dosopttemplate.data.repository
+
+import android.content.SharedPreferences
+import com.google.gson.Gson
+import com.google.gson.GsonBuilder
+import org.sopt.dosopttemplate.data.entity.User
+import org.sopt.dosopttemplate.domain.repository.SharedPrefRepository
+import javax.inject.Inject
+
+class SharedPrefRepositoryImpl @Inject constructor(
+    private val sharedPref: SharedPreferences
+) : SharedPrefRepository {
+    val gson: Gson = GsonBuilder().create()
+    override fun saveUserInfo(user: User?) {
+        val value = gson.toJson(user)
+        sharedPref.edit().putString("user", value).apply()
+    }
+
+    override fun getUserInfo(): User? {
+        val value = sharedPref.getString("user", "")
+        if (value.isNullOrBlank()) return null
+        return gson.fromJson(value, User::class.java)
+    }
+
+    override fun setAutoLogin() {
+        sharedPref.edit().putBoolean("autoLogin", true).apply()
+    }
+
+    override fun isAutoLogin(): Boolean {
+        return sharedPref.getBoolean("autoLogin", false)
+    }
+
+    override fun clearAutoLogin() {
+        sharedPref.edit().putBoolean("autoLogin", false).apply()
+    }
+
+    override fun clearSharedPref() {
+        sharedPref.edit().clear().apply()
+    }
+}

app/src/main/java/org/sopt/dosopttemplate/di/RepositoryModule.kt

@@ -0,0 +1,19 @@
+package org.sopt.dosopttemplate.di
+
+import dagger.Binds
+import dagger.Module
+import dagger.hilt.InstallIn
+import dagger.hilt.components.SingletonComponent
+import org.sopt.dosopttemplate.data.repository.SharedPrefRepositoryImpl
+import org.sopt.dosopttemplate.domain.repository.SharedPrefRepository
+import javax.inject.Singleton
+
+@Module
+@InstallIn(SingletonComponent::class)
+abstract class RepositoryModule {
+    @Singleton
+    @Binds
+    abstract fun bindsSharedPrefRepository(
+        sharedPrefRepository: SharedPrefRepositoryImpl
+    ): SharedPrefRepository
+}

app/src/main/java/org/sopt/dosopttemplate/di/SharedPrefModule.kt

@@ -0,0 +1,20 @@
+package org.sopt.dosopttemplate.di
+
+import android.content.Context
+import android.content.SharedPreferences
+import dagger.Module
+import dagger.Provides
+import dagger.hilt.InstallIn
+import dagger.hilt.android.qualifiers.ApplicationContext
+import dagger.hilt.components.SingletonComponent
+import javax.inject.Singleton
+
+@Module
+@InstallIn(SingletonComponent::class)
+object SharedPrefModule {
+    @Provides
+    @Singleton
+    fun provideSharedPreferences(@ApplicationContext context: Context): SharedPreferences {
+        return context.getSharedPreferences("prefs", Context.MODE_PRIVATE)
+    }
+}

app/src/main/java/org/sopt/dosopttemplate/domain/repository/SharedPrefRepository.kt

@@ -0,0 +1,12 @@
+package org.sopt.dosopttemplate.domain.repository
+
+import org.sopt.dosopttemplate.data.entity.User
+
+interface SharedPrefRepository {
+    fun saveUserInfo(user: User?)
+    fun getUserInfo(): User?
+    fun setAutoLogin()
+    fun isAutoLogin(): Boolean
+    fun clearAutoLogin()
+    fun clearSharedPref()
+}

app/src/main/java/org/sopt/dosopttemplate/presentation/login/LoginActivity.kt

@@ -4,25 +4,32 @@ import android.content.Intent
 import android.os.Bundle
 import androidx.activity.result.ActivityResultLauncher
 import androidx.activity.result.contract.ActivityResultContracts
+import androidx.activity.viewModels
+import dagger.hilt.android.AndroidEntryPoint
 import org.sopt.dosopttemplate.R
 import org.sopt.dosopttemplate.data.entity.User
 import org.sopt.dosopttemplate.databinding.ActivityLoginBinding
 import org.sopt.dosopttemplate.presentation.main.MainActivity
 import org.sopt.dosopttemplate.presentation.signup.SignupActivity
+import org.sopt.dosopttemplate.util.activity.hideKeyboard
 import org.sopt.dosopttemplate.util.binding.BindingActivity
 import org.sopt.dosopttemplate.util.context.toast
 import org.sopt.dosopttemplate.util.intent.getParcelable
+import org.sopt.dosopttemplate.util.view.UiState
 import org.sopt.dosopttemplate.util.view.snackBar
 
+@AndroidEntryPoint
 class LoginActivity : BindingActivity<ActivityLoginBinding>(R.layout.activity_login) {
     private lateinit var resultLauncher: ActivityResultLauncher<Intent>
-
+    private val viewModel by viewModels<LoginViewModel>()
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
-
+        binding.vm = viewModel
         initResultLauncher()
         initSignupButtonClickListener()
         initLoginButtonClickListener()
+        initloginStateObserver()
+        initHideKeyboard()
     }
 
     private fun initResultLauncher() {
@@ -31,7 +38,7 @@ class LoginActivity : BindingActivity<ActivityLoginBinding>(R.layout.activity_lo
         ) { result ->
             if (result.resultCode == RESULT_OK) {
                 val user = result.data?.getParcelable(USER_KEY, User::class.java)
-
+                viewModel.setAutoLogin(user)
                 binding.root.snackBar { getString(R.string.login_success_signup) }
                 setLoginButtonClickListener(user)
             }
@@ -47,23 +54,41 @@ class LoginActivity : BindingActivity<ActivityLoginBinding>(R.layout.activity_lo
 
     private fun initLoginButtonClickListener() {
         binding.btnLoginLogin.setOnClickListener {
-            binding.root.snackBar { getString(R.string.login_fail_login) }
+            viewModel.login()
         }
     }
 
     private fun setLoginButtonClickListener(user: User?) {
         binding.btnLoginLogin.setOnClickListener {
-            if (isValidLogin(user)) {
-                val intent = Intent(this, MainActivity::class.java)
-                intent.putExtra(USER_KEY, user)
-                this.toast(getString(R.string.login_success_login))
-                startActivity(intent)
+            viewModel.login(user)
+        }
+    }
+
+    private fun initloginStateObserver() {
+        viewModel.loginState.observe(this) { state ->
+            when (state) {
+                is UiState.Success -> {
+                    navigateToMainScreenWithUserData(state.data)
+                }
+
+                is UiState.Empty -> {}
+                else -> binding.root.snackBar { getString(R.string.login_fail_login) }
             }
         }
     }
 
-    private fun isValidLogin(user: User?): Boolean =
-        binding.etLoginId.text.toString() == user?.id && binding.etLoginPw.text.toString() == user.pw
+    private fun navigateToMainScreenWithUserData(user: User?){
+        val intent = Intent(this, MainActivity::class.java)
+        intent.putExtra(USER_KEY, user)
+        this.toast(getString(R.string.login_success_login))
+        viewModel.setAutoLogin(user)
+        intent.flags = Intent.FLAG_ACTIVITY_NEW_TASK or Intent.FLAG_ACTIVITY_CLEAR_TASK
+        startActivity(intent)
+    }
+
+    private fun initHideKeyboard() {
+        binding.root.setOnClickListener { hideKeyboard() }
+    }
 
     companion object {
         private const val USER_KEY = "user"

app/src/main/java/org/sopt/dosopttemplate/presentation/login/LoginViewModel.kt

@@ -0,0 +1,49 @@
+package org.sopt.dosopttemplate.presentation.login
+
+import androidx.lifecycle.LiveData
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.ViewModel
+import dagger.hilt.android.lifecycle.HiltViewModel
+import org.sopt.dosopttemplate.data.entity.User
+import org.sopt.dosopttemplate.domain.repository.SharedPrefRepository
+import org.sopt.dosopttemplate.util.view.UiState
+import javax.inject.Inject
+
+@HiltViewModel
+class LoginViewModel @Inject constructor(
+    val sharedPrefRepository: SharedPrefRepository
+) : ViewModel() {
+    private val _loginState = MutableLiveData<UiState<User?>>(UiState.Empty)
+    val loginState: LiveData<UiState<User?>> get() = _loginState
+
+    val id = MutableLiveData<String>()
+    val pw = MutableLiveData<String>()
+
+    init {
+        autoLogin()
+    }
+
+    private fun isValidLogin(user: User? = sharedPrefRepository.getUserInfo()): Boolean =
+        id.value == user?.id && pw.value == user?.pw
+
+    fun login(user: User? = null) {
+        when (if (user == null) isValidLogin() else isValidLogin(user)) {
+            true -> _loginState.value = UiState.Success(sharedPrefRepository.getUserInfo())
+            false -> _loginState.value = UiState.Failure(CODE_FAILURE)
+        }
+    }
+
+    private fun autoLogin() {
+        if (sharedPrefRepository.isAutoLogin()) _loginState.value =
+            UiState.Success(sharedPrefRepository.getUserInfo())
+    }
+
+    fun setAutoLogin(user: User?) {
+        sharedPrefRepository.saveUserInfo(user)
+        sharedPrefRepository.setAutoLogin()
+    }
+
+    companion object {
+        const val CODE_FAILURE = "fail"
+    }
+}