Я работаю над приложением, которое использует USB-аксессуар. Когда я присоединяю устройство к arduino, оно запрашивает разрешение usb, и у него есть флажок в диалоговом окне «Использовать по умолчанию». Когда я проверил и нажал «ОК», он должен сохранить разрешение и не спрашивать меня. еще раз, но он запрашивает разрешение каждый раз, когда я подключаю USB. Я хочу сохранить разрешение, есть ли способ сохранить это?

Мой код выглядит как

@Override
public void onResume() {
    super.onResume();

    if (mInputStream != null && mOutputStream != null) {
        // streams were not null");
        return;
    }
    // streams were null");
    UsbAccessory[] accessories = mUsbManager.getAccessoryList();
    UsbAccessory accessory = (accessories == null ? null : accessories[0]);
    if (accessory != null) {
        if (mUsbManager.hasPermission(accessory)) {
            openAccessory(accessory);
        } else {
            synchronized (mUsbReceiver) {
                if (!mPermissionRequestPending) {
                    mUsbManager.requestPermission(accessory,
                            mPermissionIntent);
                    mPermissionRequestPending = true;
                }
            }
        }
    }

И Android манифест выглядит файл

 <activity
        android:name="pkg.sarvajal.soochakdroid.Main"
        android:label="@string/Home" 
        android:theme="@android:style/Theme.Translucent.NoTitleBar.Fullscreen"
        android:screenOrientation="landscape">
        <intent-filter>
            <action android:name="android.hardware.usb.action.USB_ACCESSORY_ATTACHED" />
             <action android:name="android.hardware.usb.action.USB_DEVICE_DETACHED" />
        </intent-filter>


        <meta-data
            android:name="android.hardware.usb.action.USB_ACCESSORY_ATTACHED"
            android:resource="@xml/accessory_filter" />
    </activity>

Вспомогательный фильтр похож на

<?xml version="1.0" encoding="utf-8"?>
<resources>
<usb-accessory manufacturer="Manufacturer" model="Model" version="1.0" />
<usb-device vendor-id="0x0403" product-id="0x0403" />
</resources>

Мой код BroadcastReceiver

private final BroadcastReceiver mUsbReceiver = new BroadcastReceiver() {
    @Override
    public void onReceive(Context context, Intent intent) {
        String action = intent.getAction();
        if (ACTION_USB_PERMISSION.equals(action)) {
            synchronized (this) {
                //UsbAccessory accessory = UsbManager.getAccessory(intent);
                UsbAccessory accessory = (UsbAccessory) intent.getParcelableExtra(UsbManager.EXTRA_ACCESSORY);
                if (intent.getBooleanExtra(
                        UsbManager.EXTRA_PERMISSION_GRANTED, false)) {
                    Flag_USB_Attached = true;
                    Flag_Count_USB_Attached = 0;
                    Flag_Count_USB_Restart_App = 0;
                    openAccessory(accessory);
                    String strdatetime =responce_date();
                    //sendSMS_background(phoneNumber, "USB Cable Connected  at "+strdatetime);


                } else {
                    // USB permission denied
                }
            }
        } else if (UsbManager.ACTION_USB_ACCESSORY_DETACHED.equals(action)) {
            //UsbAccessory accessory = UsbManager.getAccessory(intent);
            UsbAccessory accessory = (UsbAccessory) intent.getParcelableExtra(UsbManager.EXTRA_ACCESSORY);
            if (accessory != null && accessory.equals(mAccessory)) {
                // accessory detached
                Flag_USB_Attached = false;
                Flag_Count_USB_Attached = 0;
                closeAccessory();
                String strdatetime =responce_date();
                //sendSMS_background(phoneNumber, "Communication Stopped! \n USB Cable Disconnected  at "+strdatetime);
                //SMS_USB();

            }
        }
}

И настройка дополнительного кода

/ Setting up accessory
private void setupAccessory() {
    //mUsbManager = UsbManager.getInstance(this);
    mUsbManager  = (UsbManager) getSystemService(Context.USB_SERVICE);
    mPermissionIntent = PendingIntent.getBroadcast(this, 0, new Intent(
            ACTION_USB_PERMISSION), 0);
    IntentFilter filter = new IntentFilter(ACTION_USB_PERMISSION);
    filter.addAction(UsbManager.ACTION_USB_ACCESSORY_DETACHED);
    registerReceiver(mUsbReceiver, filter);
    if (getLastNonConfigurationInstance() != null) {
        mAccessory = (UsbAccessory) getLastNonConfigurationInstance();
        openAccessory(mAccessory);
    }
}
// Opening Accessory Mode
private void openAccessory(UsbAccessory accessory) {
    mFileDescriptor = mUsbManager.openAccessory(accessory);
    if (mFileDescriptor != null) {
        mAccessory = accessory;
        FileDescriptor fd = mFileDescriptor.getFileDescriptor();
        mInputStream = new FileInputStream(fd);
        mOutputStream = new FileOutputStream(fd);
        Thread thread = new Thread(null, this, "OpenAccessoryTest");
        thread.start();
        // Accessory opened
    } else {
        // failed to open accessory
    }
}
// close Accessory
private void closeAccessory() {
    try {
        // T.cancel();
        if (mFileDescriptor != null) {
            mFileDescriptor.close();
        }
    } catch (IOException e) {
    } finally {
        mFileDescriptor = null;
        mAccessory = null;
    }
}