IOIO library.

Android Processing

digitalco..

in Android Processing • 1 year ago

I have asked this on the ioio discussion group to no avail and hope one of you might understand how to utilize the ioio library (already in java) in Processing for android?

I have made the folder and placed the library so it is recognized by processing and written code using this guide:

https://github.com/ytai/ioio/wiki/IOIOLib-Basics

and here is what I have for a basic test:

import ioio.lib.util.*;

import ioio.lib.impl.*;

import ioio.lib.api.*;

import ioio.lib.api.exception.*;

IOIO ioio = IOIOFactory.create();

DigitalOutput led;

void setup() {

size(200, 200);

fill(126);

background(102);

ioio.waitForConnect();

led = ioio.openDigitalOutput(IOIO. LED_PIN);

}

void draw() {

if(mousePressed) {

stroke(255);

led.write(true);

} else {

stroke(0);

led.write(false);

}

line(mouseX-66, mouseY, mouseX+66, mouseY);

line(mouseX, mouseY-66, mouseX, mouseY+66);

}

The result is a compiler failure for every mention of the ioio after the initialization that looks like this:

java:30: unreported exception ioio.lib.api.exception.ConnectionLostException; must be caught or declared to be thrown

[javac] ioio.waitForConnect();

Any help or suggestions are appreciated, I think I dont understand fully how to merge the structure of the ioio examples with the more rigid structure of a processing sketch.

Replies(9)

filmmaker..

Re: IOIO library.

1 year ago

I am trying to do the same thing. I would much rather use processing than eclipse.

Anyone have any ideas?

digitalco..

It seems nearly everything in the Library is written with exceptions, something that isnt really used at all in Processing and so I think the Library has to be written from the ground up with this in mind. I would love someone who understands Java interrupts and Processing to explain it. Please!

PhiLho

Re: IOIO library.

1 year ago

OK, I don't know the library nor Android, but this is standard Java, so I can explain...

" ioio.lib.api.exception.ConnectionLostException; must be caught or declared to be thrown"
The message is rather clear, but as you point out, Processing carefully avoided to expose exceptions (and their handling) to users, so lot of Processing users don't know how to handle this.
This means that you need to put the code that can throw an exception between a try and a catch statements. It is called a checked exception, ie. one you cannot ignore, that you must handle / catch.
So, the line must be written:
try
{
ioio.waitForConnect();
}
catch (ConnectionLostException e)
{
println(e);
}
Thus, the compiler will be happy.

filmmaker..

Re: IOIO library.

1 year ago

Could you possibly post how to or the actual library you are using. I read that someone had created a IOIO.jar library. Is this what you did?

jaeveedee

Re: IOIO library.

5 months ago

I wanted to bump this thread again since it seems that there's not much info out about this. I'm currently working on a project that involves a nexus 7 and a IOIO. I've used the code at benatwork.cc and it crashes on my android device everytime. I've also tried using the code listed above and I can get it to stop throwing exceptions but then it does the same and crashes on me. Anyone out there that has processing/android for IOIO talking to each other?

I know my hardware is good bc I downloaded the IOIO hardware tester app and it turns the lights on and off.

Any help is appreciated

Jay

rhabyt

Re: IOIO library.

5 months ago

It's looking like the ioio.jar from benatwork.cc/how-to-use-processing-in-android-mode-with-the-ioio-board/ is not working. Probably your Android (the Nexus 7 will be running 4.2) is too new or maybe Processing has moved on (it looks like he was working with 2.0a4). He created that ioio.jar in February 2012.

Unless you can get Ben to build a new IOIO.jar, I'm thinking that the money is on trying to get digitalcoleman's example working and use the original Java libraries.

Is there anyone out there with better experience packaging Java libraries for Processing who could take Ytai's libraries and make them work for Android Processing? IOIOs are a pretty fabulous way to extend Processing to do input/output in a portable way.

Thanks in advance,

Gwyan

rhabyt

Re: IOIO library.

5 months ago

Ask and ye shall receive.

An fine new IOIO library for processing called pioio by PinkHatSpike has shown up on Github. It works perfectly (for my setup at least).

Thanks to Jay for emailing me the reference before Google even managed to index it.

leducmills

Re: IOIO library.

3 months ago

For those of you following this thread:

The instructions on my site are definitely outdated at this point - they 'should' still work for phones running an OS below 4.2.2 - the problem is with the new 'secure ADB' features in 4.2.2 (and possibly other changes as well).

If anyone has found a solution around this and gotten things to work on newer phones, I'd love to hear about it.

Cheers,

-Ben

scosulliv..

Re: IOIO library.

2 months ago

I wanted to comment on bluetooth connections for the sake of anyone searching for IOIO bluetooth stuff.

I had my project working (4.1.1) using Ben's walkthrough- which worked great, but I couldn't figure out how to get Bluetooth working. I converted my whole project over to use PinkHatSpike's pioio library and it worked great.

I don't know if it'd work for 4.2.2 and beyond, but it definitely worked for me. Just have the dongle paired with the Android device, make sure the sketch's bluetooth permissions are checked and it works just like it was plugged in via the USB cord.

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