I usually create my own graphical user interface (custom design) to control an arduino via an android device using an android phone, wherein the GUI and communication was coded in processing android mode. But after upgrades done during the development of processing, a problem arise. The code that I created does not run the GUI on the later versions anymore.
My previous codes using Bluetooth communication was able and still is able to run in processing 2.0b6 and 2.0b7 (old dowloads). The problem on the codes started when I tested it with processing 2.2.1 (old download) states "that the package "android" does note exist". Also problems from existing later version, from processing 2.2.1(new download) untl the last version, states that there is an "error from inside the android tools, check the console".
This was test until February 2017.
I am still currently working on projects using the android device communicating with arduino via bluetooth, and it is still working perfectly. It was fortunate that I did not delete my old versions for testing my codes.
May I know, why did the foundation remove android packages in developing android device communicating via bluetooth? Or does the later versions require a procedure to install android packages.
Are there other ways wherein I could code bluetooth communication using a custom graphic user interface to communicate with arduino using the latest version of processing. Or are there any alternatives wherein I could code making android communicate with arduino designing my own GUI?