mTHMMY/app/src/main/AndroidManifest.xml

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

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

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity
            android:name=".activities.LoginActivity"
            android:configChanges="orientation|screenSize"
            android:launchMode="singleTop"
            android:theme="@style/AppTheme.NoActionBar">
            <intent-filter>
                <action android:name="android.intent.action.MAIN"/>
                <category android:name="android.intent.category.LAUNCHER"/>
            </intent-filter>
        </activity>
        <activity
            android:name=".activities.MainActivity"
            android:label="@string/app_name"
            android:configChanges="orientation|screenSize"
            android:launchMode="singleTop"
            android:theme="@style/AppTheme.NoActionBar">
        </activity>
        <activity
            android:name=".activities.AboutActivity"
            android:parentActivityName=".activities.MainActivity">
            <meta-data
                android:name="android.support.PARENT_ACTIVITY"
                android:value=".activities.MainActivity"/>
        </activity>
        <activity
            android:name=".activities.TopicActivity"
            android:configChanges="orientation|screenSize"
            android:parentActivityName=".activities.MainActivity">
            <meta-data
                android:name="android.support.PARENT_ACTIVITY"
                android:value=".activities.MainActivity"/>
        </activity>
        <activity android:name=".activities.BaseActivity"/>
    </application>

</manifest>