first commit

.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
+.idea/gradle.xml
+.idea/vcs.xml

LICENSE

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+MIT License
+
+Copyright (c) 2021 Derrick
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

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+# Todolist
+Android Todolist simple app for leanring MVVM Architecture
+You can simply check and know the techniques below
+
+- Room
+- MVVM Architecture
+- Coroutines basic
+- Defedency Injetion with Kodein-DI
+- Live Data 
+
+
+
+
+
+

app/.gitignore

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+/build

app/build.gradle

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+plugins {
+    id 'com.android.application'
+    id 'kotlin-android'
+    id 'kotlin-kapt'
+    id 'kotlin-android-extensions'
+}
+
+android {
+    compileSdk 31
+
+    defaultConfig {
+        applicationId "jinyoung.dev.todolist"
+        minSdk 21
+        targetSdk 31
+        versionCode 1
+        versionName "1.0"
+
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+    }
+
+
+
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+        }
+    }
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+    kotlinOptions {
+        jvmTarget = '1.8'
+    }
+
+}
+
+dependencies {
+
+    implementation 'androidx.core:core-ktx:1.7.0'
+    implementation 'androidx.appcompat:appcompat:1.4.0'
+    implementation 'com.google.android.material:material:1.4.0'
+    implementation 'androidx.constraintlayout:constraintlayout:2.1.2'
+    testImplementation 'junit:junit:4.+'
+    androidTestImplementation 'androidx.test.ext:junit:1.1.3'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
+
+    def room_version = '2.4.0'
+    def kodein_version = "6.4.0"
+    def lifecycle_version = "2.0.0"
+
+    // Room and Architectural Components
+    implementation "androidx.room:room-runtime:$room_version"
+    implementation "androidx.legacy:legacy-support-v4:1.0.0"
+    implementation 'androidx.lifecycle:lifecycle-extensions:2.1.0'
+    implementation 'androidx.lifecycle:lifecycle-viewmodel-ktx:2.1.0'
+    implementation "androidx.room:room-ktx:2.2.1"
+    kapt "androidx.room:room-compiler:$room_version"
+
+
+
+    // Coroutines
+    implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-core:1.3.0'
+    implementation "org.jetbrains.kotlinx:kotlinx-coroutines-android:1.3.0"
+
+    // New Material Design
+    implementation "com.google.android.material:material:1.0.0"
+
+    // ViewModel
+    implementation "androidx.lifecycle:lifecycle-extensions:$lifecycle_version"
+    implementation "androidx.lifecycle:lifecycle-viewmodel-ktx:$lifecycle_version"
+    kapt "androidx.lifecycle:lifecycle-compiler:$lifecycle_version"
+
+    // Kodein
+    implementation "org.kodein.di:kodein-di-generic-jvm:$kodein_version"
+    implementation "org.kodein.di:kodein-di-framework-android-x:$kodein_version"
+}

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

app/src/androidTest/java/jinyoung/dev/todolist/ExampleInstrumentedTest.kt

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+package jinyoung.dev.todolist
+
+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("jinyoung.dev.mvvmsample", appContext.packageName)
+    }
+}

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"
+    package="jinyoung.dev.todolist">
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:name="jinyoung.dev.todolist.TodoListApplication"
+        android:theme="@style/Theme.MVVMSample">
+        <activity
+            android:name="jinyoung.dev.todolist.ui.actionitem.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>

app/src/main/java/jinyoung/dev/todolist/TodoListApplication.kt

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+package jinyoung.dev.todolist
+
+import android.app.Application
+import jinyoung.dev.todolist.data.db.ActionDatabase
+import jinyoung.dev.todolist.repositories.ActionRepository
+import jinyoung.dev.todolist.ui.actionitem.ActionItemViewModelFactory
+
+import org.kodein.di.Kodein
+import org.kodein.di.KodeinAware
+import org.kodein.di.android.x.androidXModule
+import org.kodein.di.generic.bind
+import org.kodein.di.generic.instance
+import org.kodein.di.generic.provider
+import org.kodein.di.generic.singleton
+
+class TodoListApplication: Application(), KodeinAware {
+
+    override val kodein: Kodein = Kodein.lazy {
+        import(androidXModule(this@TodoListApplication))
+        bind() from singleton { ActionDatabase(instance()) }
+        bind() from singleton {
+            ActionRepository(
+                instance()
+            )
+        }
+        bind() from provider {
+            ActionItemViewModelFactory(
+                instance()
+            )
+        }
+    }
+}

app/src/main/java/jinyoung/dev/todolist/data/db/ActionDao.kt

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+package jinyoung.dev.todolist.data.db
+
+import androidx.lifecycle.LiveData
+import androidx.room.*
+import jinyoung.dev.todolist.data.db.entities.ActionItem
+
+@Dao
+interface ActionDao {
+
+    @Insert(onConflict = OnConflictStrategy.REPLACE)
+    suspend fun upsert(item: ActionItem)
+
+    @Delete
+    suspend fun delete(item: ActionItem)
+
+    @Query("SELECT * FROM action_items")
+    fun getAllActionItems(): LiveData<List<ActionItem>>
+
+}

app/src/main/java/jinyoung/dev/todolist/data/db/ActionDatabase.kt

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+package jinyoung.dev.todolist.data.db
+
+import android.content.Context
+import androidx.room.Database
+import androidx.room.Room
+import androidx.room.RoomDatabase
+import jinyoung.dev.todolist.data.db.entities.ActionItem
+
+@Database(
+    entities = [ActionItem::class],
+    version = 1
+)
+abstract class ActionDatabase: RoomDatabase() {
+
+    abstract fun getActionDao(): ActionDao
+
+    companion object {
+        @Volatile
+        private var instance: ActionDatabase? = null
+        private val LOCK = Any()
+
+        operator fun invoke(context: Context) = instance
+            ?: synchronized(LOCK) {
+                instance
+                    ?: createDatabase(
+                        context
+                    ).also { instance = it }
+            }
+
+        private fun createDatabase(context: Context) =
+            Room.databaseBuilder(context.applicationContext,
+                ActionDatabase::class.java, "ActionItemDB.db").build()
+    }
+}

app/src/main/java/jinyoung/dev/todolist/data/db/entities/ActionItem.kt

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+package jinyoung.dev.todolist.data.db.entities
+
+import androidx.room.ColumnInfo
+import androidx.room.Entity
+import androidx.room.PrimaryKey
+
+@Entity(tableName = "action_items")
+data class ActionItem(
+    @ColumnInfo(name = "item_name")
+    var name: String,
+    @ColumnInfo(name = "item_amount")
+    var amount: Int,
+
+    @ColumnInfo(name = "item_staus")
+var status: Boolean
+) {
+    @PrimaryKey(autoGenerate = true)
+    var id: Int? = null
+}

app/src/main/java/jinyoung/dev/todolist/repositories/ActionRepository.kt

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+package jinyoung.dev.todolist.repositories
+
+import jinyoung.dev.todolist.data.db.ActionDatabase
+import jinyoung.dev.todolist.data.db.entities.ActionItem
+
+class ActionRepository(
+    private val db: ActionDatabase
+) {
+    suspend fun upsert(item: ActionItem) = db.getActionDao().upsert(item)
+
+    suspend fun delete(item: ActionItem) = db.getActionDao().delete(item)
+
+    fun getAllActionItems() = db.getActionDao().getAllActionItems()
+}