Processing, the ADK and accessory mode

Android Processing

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Processing, the ADK and accessory mode

in Android Processing • 2 years ago

Hi,

I recently got my hands on one of the new Google ADK boards. I've done a lot of Processing work, but not a lot of straight Java or Android programing. (Although, I have started to learn Android).

I'm wondering if any one has made any progress in getting a processing sketch, running on Android, to speak to the ADK board via the accessory mode?

In the mean time, I was wondering if anyone had any advice on ways to tackle this problem.

Currently I've been trying something like this

import android.hardware.usb;
UsbAccessory mAccessory;
ParcelFileDescriptor mFileDescriptor;
FileInputStream mInputStream;
FileOutputStream mOutputStream;
float w, h;
String[] fontList;
PFont androidFont;
void onResume() {
super.onResume();
println("RESUMED! (Sketch Entered...)");
UsbAccessory accessory = UsbManager.getAccessory(intent);
}
void onPause() {
println("PAUSED! (Sketch Exited...)");
super.onPause();
}
private void openAccessory() {
// Log.d(TAG, "openAccessory: " + accessory);
mFileDescriptor = mUsbManager.openAccessory(mAccessory);
if (mFileDescriptor != null) {
FileDescriptor fd = mFileDescriptor.getFileDescriptor();
mInputStream = new FileInputStream(fd);
mOutputStream = new FileOutputStream(fd);
Thread thread = new Thread(null, this, "AccessoryThread");
thread.start();
}
}
void setup() {
size(screenWidth, screenHeight, A2D);
w = screenWidth;
h = screenHeight;
orientation(PORTRAIT);
// Setup Fonts:
fontList = PFont.list();
androidFont = createFont(fontList[0], 16, true);
textFont(androidFont);
}
void draw() {
fill(0);
rect(0,0,w,h);
fill(255);
text("I LIVE",10,20);
}

The tip of the problem is an error for the import android.hardware.usb; line.

Also, the manifest.xml file, ideally, needs to be updated ( see here for the official docs)

I've done this, which I know does not work:

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package=""
android:versionCode="1"
android:versionName="1.0">
<uses-sdk android:minSdkVersion="10" android:targetSdkVersion="11" />
<uses-feature android:name="android.hardware.usb.accessory" />
<application android:label=""
android:icon="@drawable/icon"
android:debuggable="true">
<uses-library android:name="com.android.future.usb.accessory" />
<activity android:name="">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>

I'll keep hacking at it, but if you've got any advice for me, I'd love to hear it.

Thanks.

Replies(1)

xavierv1

Re: Processing, the ADK and accessory mode

2 years ago

you could see this link : Running Examples in Accessory Mode and don't forget this other one:

they are on Arduino Labs, and are experimental code. I hope that this could work, but i can't test because i have'nt any ADK Arduino.

If this works, please send me feedback.

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