AndroidManifest.xml

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

    <application
        android:name=".Application"
        android:allowBackup="true"
        android:icon="@drawable/icon"
        android:label="@string/app_name"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".MainMenu">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity android:name="SerialPortPreferences"></activity>
        <activity android:name="ConsoleActivity"></activity>
        <activity android:name="LoopbackActivity"></activity>
        <activity android:name="Sending01010101Activity"></activity>
    </application>

</manifest>