Migrate project from Java to Kotlin

app/build.gradle

@@ -1,4 +1,6 @@
 apply plugin: 'com.android.application'
+apply plugin: 'kotlin-android'
+apply plugin: 'kotlin-kapt'
 
 android {
     compileSdkVersion 29
@@ -27,7 +29,8 @@ dependencies {
     androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
     implementation project(':fastsave')
     implementation 'com.jakewharton:butterknife:8.8.1'
-    annotationProcessor 'com.jakewharton:butterknife-compiler:8.8.1'
+    kapt 'com.jakewharton:butterknife-compiler:8.8.1'
+    implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
     //DataBaseDebugger
     debugImplementation 'com.amitshekhar.android:debug-db:1.0.3'
 }

app/src/androidTest/java/com/appizona/yehiahd/fastsaveexample/ExampleInstrumentedTest.kt

@@ -0,0 +1,22 @@
+package com.appizona.yehiahd.fastsaveexample
+
+import android.support.test.InstrumentationRegistry
+import android.support.test.runner.AndroidJUnit4
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.junit.Assert.assertEquals
+
+/**
+ * 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.getTargetContext()
+        assertEquals("com.appizona.yehia.fastsaveexample", appContext.packageName)
+    }
+}

app/src/main/java/com/appizona/yehiahd/fastsaveexample/MainActivity.kt

@@ -0,0 +1,152 @@
+package com.appizona.yehiahd.fastsaveexample
+
+import android.os.Bundle
+import android.support.v7.app.AppCompatActivity
+import android.view.View
+import android.widget.Button
+import android.widget.EditText
+import android.widget.TextView
+import butterknife.BindView
+import butterknife.ButterKnife
+import com.appizona.yehiahd.fastsave.FastSave
+
+class MainActivity : AppCompatActivity(), View.OnClickListener {
+
+    @BindView(R.id.edit_text)
+    lateinit var editText: EditText
+
+    @BindView(R.id.save_int)
+    lateinit var saveInt: Button
+
+    @BindView(R.id.save_float)
+    lateinit var saveFloat: Button
+
+    @BindView(R.id.save_long)
+    lateinit var saveLong: Button
+
+    @BindView(R.id.save_string)
+    lateinit var saveString: Button
+
+    @BindView(R.id.save_boolean)
+    lateinit var saveBoolean: Button
+
+    @BindView(R.id.get_int)
+    lateinit var getInt: Button
+
+    @BindView(R.id.get_float)
+    lateinit var getFloat: Button
+
+    @BindView(R.id.get_long)
+    lateinit var getLong: Button
+
+    @BindView(R.id.get_string)
+    lateinit var getString: Button
+
+    @BindView(R.id.get_boolean)
+    lateinit var getBoolean: Button
+
+    @BindView(R.id.save_object)
+    lateinit var saveObject: Button
+
+    @BindView(R.id.get_object)
+    lateinit var getObject: Button
+
+    @BindView(R.id.save_objects_list)
+    lateinit var saveObjectsList: Button
+
+    @BindView(R.id.get_objects_list)
+    lateinit var getObjectsList: Button
+
+    @BindView(R.id.value_TV)
+    lateinit var valueTV: TextView
+
+    @BindView(R.id.clear_all)
+    lateinit var clearAll: Button
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_main)
+        ButterKnife.bind(this)
+
+        saveInt.setOnClickListener(this)
+        saveBoolean.setOnClickListener(this)
+        saveLong.setOnClickListener(this)
+        saveFloat.setOnClickListener(this)
+        saveString.setOnClickListener(this)
+        saveObject.setOnClickListener(this)
+        saveObjectsList.setOnClickListener(this)
+        clearAll.setOnClickListener(this)
+
+        getObject.setOnClickListener(this)
+        getObjectsList.setOnClickListener(this)
+    }
+
+    override fun onClick(view: View) {
+        when (view.id) {
+            R.id.save_int -> FastSave.getInstance().saveInt("int_key", 22)
+
+            R.id.save_boolean -> FastSave.getInstance().saveBoolean("boolean_key", true)
+
+            R.id.save_long -> FastSave.getInstance().saveLong("long_key", 2222)
+
+            R.id.save_float -> FastSave.getInstance().saveFloat("float_key", 22.0f)
+
+            R.id.save_string -> FastSave.getInstance().saveString("string_key", "My Age is 22")
+
+            R.id.save_object -> {
+                val person = Person()
+                    .setId(22)
+                    .setName("Yehia")
+                    .setEmployee(true)
+                FastSave.getInstance().saveObject("object_key", person)
+            }
+
+            R.id.save_objects_list -> {
+                val list = getListOfObjects()
+                FastSave.getInstance().saveObjectsList("objects_list_key", list)
+            }
+
+            R.id.clear_all -> FastSave.getInstance().clearSession()
+
+            R.id.get_object -> {
+                val p = FastSave.getInstance().getObject("object_key", Person::class.java)
+                valueTV.text = p?.name
+            }
+
+            R.id.get_objects_list -> {
+                val pl = FastSave.getInstance().getObjectsList("objects_list_key", Person::class.java)
+                valueTV.text = pl?.get(1)?.name
+            }
+        }
+    }
+
+    private fun getListOfObjects(): List<Person> {
+        val list = ArrayList<Person>()
+        val person1 = Person()
+            .setId(22)
+            .setName("Yehia")
+            .setEmployee(true)
+
+        val person2 = Person()
+            .setId(44)
+            .setName("Mohamed")
+            .setEmployee(false)
+
+        val person3 = Person()
+            .setId(30)
+            .setName("Android")
+            .setEmployee(true)
+
+        val person4 = Person()
+            .setId(33)
+            .setName("Google")
+            .setEmployee(true)
+
+        list.add(person1)
+        list.add(person2)
+        list.add(person3)
+        list.add(person4)
+
+        return list
+    }
+}