<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.aigestudio.wheelpicker.demo">

    <application
        android:icon="@mipmap/ic_launcher"
        android:label="WheelPickerDemo"
        android:theme="@android:style/Theme.Light.NoTitleBar.Fullscreen">
        <activity
            android:name=".PreviewActivity"
            android:screenOrientation="portrait">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>
</manifest>