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package org.sufficientlysecure.keychain.smartcard;
import android.app.Activity;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.hardware.usb.UsbDevice;
import android.hardware.usb.UsbManager;
import org.sufficientlysecure.keychain.Constants;
import org.sufficientlysecure.keychain.ui.UsbEventReceiverActivity;
import org.sufficientlysecure.keychain.util.Log;
public class UsbConnectionManager {
private Activity mActivity;
private OnDiscoveredUsbDeviceListener mListener;
/**
* Receives broadcast when a supported USB device get permission.
*/
private final BroadcastReceiver mUsbReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
if (UsbEventReceiverActivity.ACTION_USB_PERMISSION.equals(action)) {
UsbDevice usbDevice = intent.getParcelableExtra(UsbManager.EXTRA_DEVICE);
boolean permission = intent.getBooleanExtra(UsbManager.EXTRA_PERMISSION_GRANTED,
false);
if (permission) {
Log.d(Constants.TAG, "Got permission for " + usbDevice.getDeviceName());
mListener.usbDeviceDiscovered(usbDevice);
}
}
}
};
public UsbConnectionManager(final Activity activity, final OnDiscoveredUsbDeviceListener listener) {
this.mActivity = activity;
this.mListener = listener;
}
public void onStart() {
final IntentFilter intentFilter = new IntentFilter();
intentFilter.addAction(UsbEventReceiverActivity.ACTION_USB_PERMISSION);
mActivity.registerReceiver(mUsbReceiver, intentFilter);
}
public void onStop() {
mActivity.unregisterReceiver(mUsbReceiver);
}
}
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