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map.setOnCameraIdleListener {
    val newPosition = map.cameraPosition.target
    if (newPosition != oldPosition) {
        // drag ended
        icon_marker.animate().translationY(0f).start()
        icon_marker_shadow.animate().withStartAction {
            icon_marker_shadow.setPadding(0)
        }.start()

        getLocation(newPosition) { item ->

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private fun getLocation(latLng: LatLng, done: (Item) -> Unit) {
    val at = "${latLng.latitude},${latLng.longitude}"
    if (!hasFetch) {
        animateMarker = false
        progress_circular.visibility = View.VISIBLE
        GlobalScope.launch {
            try {
                val places = retrofitInstance.getLocation(at).items
                runOnUiThread {
                    if (places.isNotEmpty()) {

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interface RetrofitInstance {

    @GET("/v1/revgeocode")
    suspend fun getLocation(
        @Query("at") at: String,
        @Query("apiKey") apiKey: String = Constant.apiKey
    ): Places

    companion object {
        fun create(): RetrofitInstance {

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data class Places (
    val items: List<Item>
)

data class Item (
    val title: String,
    val id: String,
    val resultType: String,
    val address: Address,
    val position: Position,

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(map_view as SupportMapFragment).getMapAsync { map ->
    map.moveCamera(CameraUpdateFactory.newLatLngZoom(jakartaLatLng, 18f))

    val oldPosition = map.cameraPosition.target

    map.setOnCameraMoveStartedListener {
        // drag started

        // start animation
        icon_marker.animate().translationY(-50f).start()

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<?xml version="1.0" encoding="utf-8"?>
<androidx.coordinatorlayout.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <androidx.constraintlayout.widget.ConstraintLayout
        android:layout_width="match_parent"

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<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/bottom_sheet"
    android:layout_width="match_parent"
    android:layout_height="100dp"
    android:background="@android:color/white"
    android:padding="12dp"
    app:behavior_hideable="true"
    app:behavior_peekHeight="100dp"

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<?xml version="1.0" encoding="utf-8"?>
<shape
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="oval">
    <size
        android:width="120dp"
        android:height="30dp"/>
    <solid android:color="#000000"/>
</shape>

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<?xml version="1.0" encoding="utf-8"?>
<vector xmlns:android="http://schemas.android.com/apk/res/android"
    android:width="24dp"
    android:height="24dp"
    android:viewportWidth="24"
    android:viewportHeight="24">

    <path
        android:pathData="M0 0h24v24H0z" />
    <path

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// maps
implementation 'com.google.android.gms:play-services-maps:17.0.0'

// design
implementation 'com.google.android.material:material:1.1.0'

// retrofit
implementation 'com.squareup.retrofit2:retrofit:2.6.0'
implementation 'com.squareup.retrofit2:converter-gson:2.6.0'
implementation 'com.squareup.okhttp3:logging-interceptor:4.0.1'