Salam below is the apk file of Floating Apps for Auto (Latest Release).
Link: https://www.mediafire.com/file/l2idozn6z7ayt28/Floating_Apps_com.lwi.android.flappsauto.apk/file
I will update the post with the guide soon IA. A guide had already been shared by a fellow pakwheeler in another thread but I will try to make it more clear and comprehensive for you guys. Stay tuned!
UPDATE:
How to mirror any android phone using MirrorLink feature in Toyota Corolla Altis 1.6 Facelift entertainment system/head unit?
Tutorial:
Download "LG MirrorDrive" app from play store and install it.
Download "Floating Apps for Auto" app from the above link.(It may ask for permission to install app from unknown sources. Allow it to install the app.)
Open the "Floating Apps for Auto" app and skip all the screens. Give the required permissions to the app. Now your "Floating Apps for Auto" app is ready. You should see white & blue colored icon on the top-left corner of your screen.
Open "LG MirrorDrive" app(Do not tap on "Ok") and connect your android phone to the car using data cable. Wait for the Alpine unit to detect your device.
Once your device is detected by the system it will show "LG MirrorDrive" app icon on the screen. Tap the icon. "LG MirrorDrive" app will open(Do not tap "Ok").
Now you can see "Floating Apps for Auto" app's icon on the top-left corner of the Alpine Head Unit. Tap on it. Now you can use any app available on the screen.
Step 1-3 are for the first time only(for every new device).
Follow steps 4-6 whenever you connect your device to your car.
Hope so this tutorial is clear enough. If you have any any query, just post it below. I'll try my best to answer your queries.
Disclaimer: ALL BRAND NAMES ARE TRADEMARKS OF THEIR RESPECTIVE OWNERS. ANY PREMIUM APPS WHICH ARE SHARED ARE INTENDED TO BE USED FOR EDUCATIONAL OR RESEARCH PURPOSES. COPYRIGHT INFRINGEMENT IS NOT INTENDED.
JazakAllah Khair.