@Override
protected void onNewIntent(Intent intent) {
super.onNewIntent(intent);
if (UsbManager.ACTION_USB_ACCESSORY_ATTACHED.equals(intent.getAction())) {
// a new USB device has been attached
DbgLog.msg("USB Device attached; app restart may be needed");
}
}
@Override
public void onReceive(Context context, Intent intent) {
/* get the action for this event */
String action = intent.getAction();
/*
* if it corresponds to the packageName, then it was a permissions
* grant request
*/
if (actionString.equals(action)) {
/* see if we got permission */
if (intent.getBooleanExtra(UsbManager.EXTRA_PERMISSION_GRANTED, false)) {
/* if so, then try to open the accessory */
UsbManager deviceManager = null;
UsbAccessory accessory = null;
deviceManager = (UsbManager) context.getSystemService(Context.USB_SERVICE);
if (deviceManager == null) {
// TODO: error. report to user?
return;
}
accessory = (UsbAccessory) intent.getParcelableExtra(UsbManager.EXTRA_ACCESSORY);
parcelFileDescriptor = deviceManager.openAccessory(accessory);
if (parcelFileDescriptor != null) {
enabled = true;
open = true;
outputStream = new FileOutputStream(parcelFileDescriptor.getFileDescriptor());
readThread = new ReadThread(parcelFileDescriptor);
readThread.start();
Log.d(TAG, "USBAccessoryManager:BroadcastReceiver()-1");
handler
.obtainMessage(
what,
new USBAccessoryManagerMessage(
USBAccessoryManagerMessage.MessageType.READY, accessory))
.sendToTarget();
} else {
// TODO: error. report to user?
return;
}
}
}
if (UsbManager.ACTION_USB_ACCESSORY_ATTACHED.equals(action)) {
/*
* if it was a device attach notice, then try to open the
* accessory
*/
UsbManager deviceManager = null;
UsbAccessory[] accessories = null;
UsbAccessory accessory = null;
deviceManager = (UsbManager) context.getSystemService(Context.USB_SERVICE);
if (deviceManager == null) {
// TODO: error. report to user?
return;
}
accessories = deviceManager.getAccessoryList();
if (accessories == null) {
// TODO: error. report to user?
return;
}
accessory = accessories[0];
parcelFileDescriptor = deviceManager.openAccessory(accessory);
if (parcelFileDescriptor != null) {
enabled = true;
open = true;
outputStream = new FileOutputStream(parcelFileDescriptor.getFileDescriptor());
readThread = new ReadThread(parcelFileDescriptor);
readThread.start();
Log.d(TAG, "USBAccessoryManager:BroadcastReceiver()-2");
handler
.obtainMessage(
what,
new USBAccessoryManagerMessage(
USBAccessoryManagerMessage.MessageType.READY, accessory))
.sendToTarget();
} else {
// TODO: error. report to user?
return;
}
} else if (UsbManager.ACTION_USB_ACCESSORY_DETACHED.equals(action)) {
/*
* if it was a detach notice, then close the accessory and
* notify the user
*/
closeAccessory();
handler
.obtainMessage(
what,
new USBAccessoryManagerMessage(
USBAccessoryManagerMessage.MessageType.DISCONNECTED))
.sendToTarget();
} else if (UsbManager.EXTRA_PERMISSION_GRANTED.equals(action)) {
}
}