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

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

    <application android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="RecyclerView Extensions Demo"
        android:theme="@style/Theme.AppCompat.Light.DarkActionBar" >
        <activity android:name="io.doist.recyclerviewext.demo.DemoActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

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

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="RecyclerView Extensions Demo"
        android:theme="@style/Theme.AppCompat.Light.DarkActionBar">
        <activity
            android:name="io.doist.recyclerviewext.demo.DemoActivity"
            android:exported="true">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

Add required exported attribute to DemoActivity
Add required exported attribute to DemoActivity
