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package com.example.hidinterface;
import java.io.FileDescriptor;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import android.app.Activity;
import android.app.PendingIntent;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.hardware.usb.UsbAccessory;
import android.hardware.usb.UsbManager;
import android.os.Bundle;
import android.os.ParcelFileDescriptor;
import android.util.Log;
import android.view.Menu;
import android.widget.TextView;
public class MainActivity extends Activity {
private static final String ACTION_USB_PERMISSION="com.android.example.USB_PERMISSION";
protected static final String TAG =null;
private UsbManager mUsbManager;
private PendingIntent mPermissionIntent =null;
private UsbAccessory accessory=null;
@Override
protected void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
UsbManager mUsbManager = (UsbManager) getSystemService(Context.USB_SERVICE);
mPermissionIntent = PendingIntent.getBroadcast(this, 0, new Intent(ACTION_USB_PERMISSION), 0);
IntentFilter filter = new IntentFilter(ACTION_USB_PERMISSION);
registerReceiver(mUsbReceiver, filter);
}
@Override
public boolean onCreateOptionsMenu(Menu menu){
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
private final BroadcastReceiver mUsbReceiver=new BroadcastReceiver(){
public void onReceive(Context context,Intent intent){
String action=intent.getAction();
if(ACTION_USB_PERMISSION.equals(action)){
synchronized(this){
accessory=(UsbAccessory)intent.getParcelableExtra(UsbManager.EXTRA_ACCESSORY);
if(intent.getBooleanExtra(UsbManager.EXTRA_PERMISSION_GRANTED, false)){
if(accessory !=null){
mUsbManager.requestPermission(accessory, mPermissionIntent);
}
}
else{
Log.d(TAG, "permission denied for accessory"+accessory);
}
}
}
}
};
private void openAccessory() {
UsbAccessory mAccessory;
ParcelFileDescriptor mFileDescriptor;
FileInputStream mInputStream;
FileOutputStream mOutputStream;
Log.d(TAG, "openAccessory: " + accessory);
mFileDescriptor = mUsbManager.openAccessory(accessory);
if (mFileDescriptor != null) {
FileDescriptor fd = mFileDescriptor.getFileDescriptor();
mInputStream = new FileInputStream(fd);
mOutputStream = new FileOutputStream(fd);
Thread thread = new Thread(null, (Runnable) this, "AccessoryThread");
thread.start();
}
}
public Runnable ecriture(){
return null;
}
} |
