Fcc Car Launcher [official thread]

What do you want: a split screen functionality or a normal launcher behavior?

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Senior Member
Jan 5, 2010
Haven't been out for a few days. Loaded t114 yesterday. Rebooted and bingo.
It has never been this random before. Player widget gone entirely. Sat number icon gone, TPMS text off screen. The dreaded and all too frequent "M" now bigger and the player controls have shifted upwards.


LogCAT Hopefully this Log has some good debug data in it. If you need anything else I will try to collect it for you. Cheers


Senior Member
Oct 11, 2011
Haven't been out for a few days. Loaded t114 yesterday. Rebooted and bingo.
It has never been this random before. Player widget gone entirely. Sat number icon gone, TPMS text off screen. The dreaded and all too frequent "M" now bigger and the player controls have shifted upwards.

View attachment 5506523

LogCAT Hopefully this Log has some good debug data in it. If you need anything else I will try to collect it for you. Cheers
When you restart the launcher everything returns to normal?
Can you send me your backup file please?


Senior Member
Jan 5, 2010
I will make a new backup tomorrow. Cheers.

Yes it does reset to normal but the player never display NavRadio data and i keep getting the letter M everytime. I have cleared system cache.
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Senior Member
Oct 27, 2010
Hello @SpeedFire-
I always have the same problem whatever version I install, could you take a look at the log to understand why the launcher closes when I click on the button to program a steering wheel button?
Thanks so much


  • VID20220113134437.mp4
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Oct 30, 2021
Hey all, I just bought an Atoto A6 Karkit, new model. It will not let me give FCC access to notifications so no album covers. Is there a fix or way around this? Thx! Best launcher out there!
Jul 19, 2015
@speedfire, my device is Alwinner, Why when i use tpms widget, after 3-5 Second the number of tyre pressure is gone. Like Just can not to update periodically. Please what version of tpms apk n fcc launcher apk must i install to get tpms widget stable. This is a great car launcher for me.


Jan 30, 2020
RDS jest oprogramowaniem systemu, wewnętrznymi używanymi informacjami, które nie są dostarczane poza samą aplikacją radiową. Więc to w zasadzie normalne, że nie można uzyskać RDS w Fcc.... i nie ma innej wyrzutni niezależnej od chipset.
Ok, I'm asking because it worked on Allwinner and it does not display on uis7862 M300S.
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Senior Member
Oct 24, 2012
Interestingly, after installing the navradio application, the RDS text appeared from this application but it turns off when working with the FCC.
This will be fixed when the dev of NavRadio+ @KoTiX2 has added the RDS text and the station logo to its notification, because FCC gets its data from the player's notification.

You can read about this issue starting from post #8,449 and the following 3 posts.
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Senior Member
Oct 24, 2012

Recently I noticed an issue of the Minimap display, with Google Maps as maps provider:

When driving, the display very often isn't fully updated, i.e. only the layer with the colour areas of the streets, fields, woods etc. gets updated, but the contour lines of the streets etc., as well as the street names and other texts and also the 3d buildings and traffic informations (colour tint of the streets) are missing in the display.

Since often I see one Google Map tile (the one I'm currently driving in) with correct display and another (the next one in the direction that I'm driving to) with the missing contour lines etc. as described, I first thought that mobile data access is missing, so FCC cannot load the new tiles it needs.

But as I tested yesterday and today, this is not the case, because I checked if mobile data access was available, which was the case.

Most interestingly, the missing map elements are instantly displayed when I swipe the map with the finger, without missing map data being loaded (which would take some seconds, as I know from regular MiniMap usage). So the map data (map tiles) are already cached in memory, but only displayed when manually swiping the map, but not displayed when the MiniMap just does it's auto-update based on GPS position.

Unfortunately I cannot provide you a video, because I cannot and will not take a video when driving. But I hope that the descriptions that I gave are detailled enough. If you need more infos, please ask.

I don't know exactly when this issue started to happen, e.g. if it started with one of the latest beta versions.

Did you change anything MiniMap or Google Maps API related? Also, could this bug have been introduced by Google, so you have to update some code related to the Google Maps API?
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Senior Member
Jul 10, 2010
Realme GT
Hi huys, i want to show some progresses and discuss about them a bit...

This is the notification now for the dropdown menu on android 9 device:

This is what FCC show:

I cannot test interference with hal9k rom yet sorry, but is this what you guys needed from NavRadio?
I beleive that the datas RDS etc are taken from metadata and not from notifcation title, text and large icon...
Am i still missing something??

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  • 6
    @SpeedFire- will you look at the bugs?
    Yes. A little bit later. I have a busy time at my main work until the end of April.
    New test version attached:
    - Added support for 'pinned shortcuts' which adds support for apps like the Shortcut Maker https://play.google.com/store/apps/details?id=rk.android.app.shortcutmaker&hl=ru&gl=US
    - An option to launch an app in a split screen mode is returned to the Icon Widget settings (I don't remember why I removed it when switching to the new settings menu).
    - All libraries are updated to the lates versions so if the issue with the google map renderer still exists this may be related to something else.

    If they stopped payment in Google that would be a real pain for all hardworking developers in Russia, especially for @SpeedFire-
    We need to find a workaround for this if there is any.
    Yes, there are several issues with payments:
    - Google stopped payments to my main bank account. I entered the alternative bank account which was accepted but no payment has been done so far.
    - I will add a Huawei AppGallery support (with a slightly lower price) for those who want to pay outside the Google universe. However the documentation is not perfect for in-app purchases there. This may take some time.
    Guys, please try this version.
    Google made some changes in Billing library (which is used to check Premium purchase). Does it work (is Premium status applied correctly)?
    If they stopped payment in Google that would be a real pain for all hardworking developers in Russia, especially for @SpeedFire-
    We need to find a workaround for this if there is any.
  • 55
    Hi, all!

    Welcome to the official thread for FCC Car Launcher - a customizable auto launcher for android head units (Rockchip MTCB/MTCD+ and FlyAudio) as well as android smartphones/tablets.

    Its major features:
    - Full function launcher with supports of all standard third party android widgets
    - Deep integration with head units (MCU etc). My mission here is to implement as many functions in the launcher itself as possible. In case of Rockchip devices to get rid of most xposed modules (my deep respect to their authors, great job, but they sometimes slow down the device significantly) and replace them with the normal built-in functions.
    - Customization. The FCC Cat Launcher has some built-in customizable widgets which can help to make your home screen more personal (you can adjust widgets size, colors, features etc).
    - Built-in music widget with support of FM Radio (with ability to give names to radio stations), Spotify, Google Music, PowerAmp, PC Radio, Neutron and Stellio players.
    - One-click navigation widgets with quick route building (supports Waze, Google Maps, Yandex Navigator and other navigation apps).
    - Phone calls via connected phone using 'Ok Google call [name]' request or by clicking on built-in Contact widget.
    - Other features.

    1. I love MiniMap but can you put other navigation app there?
    Unfortunately this is not possible. MiniMap is part of FCC and is based on Google Maps API for Android. It is not another app (not even a Google Maps app), that can be just replaced within the FCC interface. Android does not allow to integrate third party apps (navigation apps) inside another third party apps (FCC Launcher).
    If your head Unit supports Split Screen (ie can display Two apps at the same time), this can be partially done with split screen.

    2. Is it possible to cache maps for MiniMap for offline use?
    - Yes. In the latest FCC Launcher beta version you can select Offline Mapbox map and download it to your device.
    - For Google Maps - No. Caching is directly prohibited by Google license for using Google Maps API (MiniMap). Moreover, Google even does not provide developers with such a caching API. Therefore you will need a constant internet connection to use MiniMap. The somewhat good news is that the map itself does some short-term caching on your device, so it saves some data (but not too much).

    3. Notifications are only popping up for a split second / flashing. How to fix this?
    That means that animations are disabled on your device.
    - Go to the device's Developer settings: FCC settings - System - Advanced - Developer settings (if it asks for code - it's "7890" for AllWinner T8).
    - Scroll down and change 3 parameters "Window animation scale", "Transition animation scale" and "Animation duration scale" from "Animation off" to "Animation scale 1x".

    4. Routing on Google Maps in MiniMap doesn't work. It asks for API key. What should I do?
    - Turn-by-turn navigation in built-in Google Map fragment is directly prohibited by Google. Therefore it is not possible to use it. .However if you have your own Google Developer account (Google Maps API key) you can use it to draw a simple route line on the MiniMap. Please note that it will NOT have any turn-by-turn data like distance to next turn or estimated time of arrival.
    I do not recommend to purchase Google Developer account just for this feature:
    - Google Developer account will cost money for you (a one-off payment) which is reasonable only if you really want to develop android apps.
    - Routing requests cost money. But currently Google provides a 200$ per month free usage for Maps, Routes, and Places every month which should be enough for individual usage.
    Links: Get API key, Pricing. Don't forget to enable Maps API and Directions API in your Google Cloud Console.


    Translation to your language
    Guys, many of you suggested your help with translation of the app to your native languages.
    I have setup a translation project on OneSky site.

    channel: https://play.google.com/store/apps/details?id=ru.speedfire.flycontrolcenter
    Beta channel: https://play.google.com/apps/testing/ru.speedfire.flycontrolcenter
    (I would suggest to stick with the release channel since beta channel can be really buggy sometimes and is intended for beta testers only)

    As a developer I will be happy to discuss with you any ideas or issues.

    Here is a couple of tutorials:
    1) Quick look on home screen setup process:

    How to write LogCat log:
    You need to have ROOT:
    1. Install LogCat Extreme LogCat Extreme
    2. Select VERBOSE level of details (very important) Video 1
    3. Write and send log: Video 2

    Initial setup (do this if you see black screen):
    Important checkbox during first setup:

    Please make sure to check that checkbox "Always allow FCC Launcher to add widgets..".

    Full setup process:
    pity that the developer is not dedicated to solving several bugs of this fantastic launcher, too many bugs for daily use is not so good unfortunately

    How the Hell can you say that when @SpeedFire- has dedicated 100's , if not 1000's of hours developing this launcher, and for peanuts !!

    I remember a time last year when he was on vacation, and even then, each night he worked on FCC, fixing bugs and greatly improving what was already there.

    FCC is probably one of the most COMPLEX apps on Playstore.

    My understanding is that he basically developed FCC for HIMSELF, because he was not satisfied with what was currently out there, and was good enough to share his work with anyone wanting to try it.

    Because of technical complexities, this launcher is designed and developed for a limited number of Android systems, but that number is increasing all the time as he add new Units to those currently supported.

    If you go out and purchase some obscure, budget China unit, that is not supported, you cannot blame anyone but yourself, if then you experience issues.

    Just because you paid the developer a few dollars because YOU CHOSE TO DO SO does not mean that you OWN him, and can demand that he jumps at your every call ... it's not his work -- it's his HOBBY -- and you probably knew that going in .. so lighten up and stop giving him such a hard time.

    BTW, I am also a developer, and I can tell you, if anyone else got involved in this complex app, it would most likely get totally screwed up, and dye -- that is assuming one could even find someone who would be willing to put in the time for next to nothing, while having the technical ability to actually contribute anything to the project.

    Thank you @SpeedFire- for clearly the best Android launcher on the market, and for all your time and dedication in constantly improving it. It is very much appreciated I am sure by the majority of those using it, and you will always have my full support going into the future.
    It seems that I've found the best solution for Normal / Split-Screen modes. Take a look:

    Here is a short demo of two modes in the alpha version:
    1) Normal mode - launcher does not support split screen (bad) but behaves as a normal launcher and is not visible in the list of recent apps (good).
    2) Split screen mode - launcher supports 50/50 multi window mode (good) but is visible in the list of recent apps (bad).

    Every user can select the preferred mode!
    The app is now returned to the Play Store :)
    New beta is out:
    - All skins are re-designed for 6x10 grid (instead of previous 6x7 grid). You need to re-apply skin if you want to switch to a new skin.
    - You can choose your favourite skin during first time setup process.
    - Time widget has new options to granually change Time and Date font sizes as well as to swap Time and Date positions
    - Re-written code for album arts in Player widget. Hopefully this will fix most issues.
    - Some other fixes.
    - For built-in skins Icons are automatically setup when put on home screen or moved (based on skins' settings for particular Icon slot).