manifests

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="fec.drawinglibrary_sample">

    <uses-feature
        android:glEsVersion="0x00020000"
        android:required="true" />


    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
    <uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW"/>
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
    <uses-permission android:name="android.permission.INTERNET" />

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity
            android:name="fec.raderapp.MainActivity"
            android:label="@string/app_name">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

style.html

<resources>

    <!-- Base application theme. -->
    <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
        <!-- Customize your theme here. -->
        <item name="colorPrimary">@color/colorPrimary</item>
        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
        <item name="colorAccent">@color/colorAccent</item>
        <item name="android:dropDownListViewStyle">@style/SpinnerStyle</item>
    </style>

    <style name="SpinnerStyle" parent="Widget.AppCompat.ListView.DropDown">
        <item name="android:divider"> @color/titleColor</item>
        <item name="android:dividerHeight"> 0.5dp </item>
    </style>
</resources>

Dialog 내부에 있는 Spinner

<LinearLayout
    android:id="@+id/_Palett_Event_Layout"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_weight="1"
    android:minWidth="25px"
    android:minHeight="25px"
    android:orientation="horizontal">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_weight="1"
        android:orientation="vertical"></LinearLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_weight="1"
        android:orientation="vertical">

        <Spinner
            android:id="@+id/_Palett_Spinner"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:background="@android:color/transparent"
            android:overlapAnchor="false"
            android:popupBackground="@color/menuColor"
            android:spinnerMode="dropdown"
            android:theme="@style/SpinnerStyle" />
    </LinearLayout>
</LinearLayout>

현재 이 상태인데 다른 Fragment에 있는 애들은 잘만 표시되는데 이 Dialog 내부에 있는 Spinner들만 안되네요.. 뭔가 더 필요한 작업이 있나요?

PS. 보다가 알게 된건데, 정확하지는 않지만 Dialog 내부에 있는 Spinner가 Style 적용 자체가 안되는 것 같습니다. 여러가지 스타일을 적용해봣는데 적용이 안되네요... 왜 이러는걸까요?