안드로이드 타이틀 바(Title Bar) 삭제

안드로이드 타이틀 바(Title Bar)  삭제 

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

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="스타사주"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/Theme.AppCompat.NoActionBar">
        <activity android:name=".MainActivity"
            android:screenOrientation="portrait">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

    <uses-permission android:name="android.permission.INTERNET">
    </uses-permission>
</manifest>