diff --git a/.idea/gradle.xml b/.idea/gradle.xml
index c8bc96c..95c9dc8 100644
--- a/.idea/gradle.xml
+++ b/.idea/gradle.xml
@@ -11,11 +11,11 @@
-
diff --git a/example/.gitignore b/example/.gitignore
new file mode 100644
index 0000000..42afabf
--- /dev/null
+++ b/example/.gitignore
@@ -0,0 +1 @@
+/build
\ No newline at end of file
diff --git a/example/build.gradle b/example/build.gradle
new file mode 100644
index 0000000..596cc26
--- /dev/null
+++ b/example/build.gradle
@@ -0,0 +1,53 @@
+plugins {
+ id 'com.android.application'
+ id 'kotlin-android'
+}
+
+android {
+ compileSdkVersion 30
+ buildToolsVersion "30.0.3"
+
+ defaultConfig {
+ applicationId "dohun.kim.gatabuta.example"
+ minSdkVersion 21
+ targetSdkVersion 30
+ 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'
+ }
+ buildFeatures {
+ dataBinding true
+ }
+}
+
+dependencies {
+ implementation project(':gatabuta-livedata')
+
+ implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
+ implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-core:1.4.3'
+ implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-android:1.4.3'
+ testImplementation 'org.jetbrains.kotlinx:kotlinx-coroutines-test:1.4.3'
+ implementation 'androidx.core:core-ktx:1.3.2'
+ implementation 'androidx.appcompat:appcompat:1.2.0'
+ implementation 'com.google.android.material:material:1.3.0'
+ implementation 'androidx.constraintlayout:constraintlayout:2.0.4'
+ testImplementation 'junit:junit:4.+'
+ testImplementation "androidx.arch.core:core-testing:2.1.0"
+ androidTestImplementation 'androidx.test.ext:junit:1.1.2'
+ androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'
+}
\ No newline at end of file
diff --git a/example/proguard-rules.pro b/example/proguard-rules.pro
new file mode 100644
index 0000000..481bb43
--- /dev/null
+++ b/example/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/example/src/main/AndroidManifest.xml b/example/src/main/AndroidManifest.xml
new file mode 100644
index 0000000..9735bf1
--- /dev/null
+++ b/example/src/main/AndroidManifest.xml
@@ -0,0 +1,21 @@
+
+
+
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/example/src/main/java/dohun/kim/gatabuta/example/MainActivity.kt b/example/src/main/java/dohun/kim/gatabuta/example/MainActivity.kt
new file mode 100644
index 0000000..d02cba1
--- /dev/null
+++ b/example/src/main/java/dohun/kim/gatabuta/example/MainActivity.kt
@@ -0,0 +1,23 @@
+package dohun.kim.gatabuta.example
+
+import androidx.appcompat.app.AppCompatActivity
+import android.os.Bundle
+import androidx.databinding.DataBindingUtil
+import androidx.lifecycle.ViewModelProvider
+import dohun.kim.gatabuta.example.databinding.ActivityMainBinding
+
+class MainActivity : AppCompatActivity() {
+
+ private lateinit var binding: ActivityMainBinding
+
+ private val viewModel: MainViewModel by lazy {
+ MainViewModel()
+ }
+
+ override fun onCreate(savedInstanceState: Bundle?) {
+ super.onCreate(savedInstanceState)
+ binding = DataBindingUtil.setContentView(this, R.layout.activity_main)
+ binding.lifecycleOwner = this
+ binding.viewModel = viewModel
+ }
+}
diff --git a/example/src/main/java/dohun/kim/gatabuta/example/MainViewModel.kt b/example/src/main/java/dohun/kim/gatabuta/example/MainViewModel.kt
new file mode 100644
index 0000000..41ac298
--- /dev/null
+++ b/example/src/main/java/dohun/kim/gatabuta/example/MainViewModel.kt
@@ -0,0 +1,19 @@
+package dohun.kim.gatabuta.example
+
+import androidx.lifecycle.LiveData
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.ViewModel
+
+class MainViewModel : ViewModel() {
+
+ private val _money = MutableLiveData()
+ val money: LiveData = _money
+
+ private val _nonNullableMoney = MutableLiveData(0)
+ val nonNullableMoney: LiveData = _nonNullableMoney
+
+ fun increaseMoney() {
+ _money.value = money.value?.plus(1) ?: 1
+ _nonNullableMoney.value = nonNullableMoney.value?.plus(1) ?: 1
+ }
+}
\ No newline at end of file
diff --git a/example/src/main/res/drawable-v24/ic_launcher_foreground.xml b/example/src/main/res/drawable-v24/ic_launcher_foreground.xml
new file mode 100644
index 0000000..2b068d1
--- /dev/null
+++ b/example/src/main/res/drawable-v24/ic_launcher_foreground.xml
@@ -0,0 +1,30 @@
+
+
+
+
+