Android 获取 USB设备列表

获取usb列表
UsbManager usbManager = (UsbManager) getSystemService(Context.USB_SERVICE);
        int size = usbManager.getDeviceList().size();
        HashMap<String, UsbDevice> deviceList = usbManager.getDeviceList();
        for (Map.Entry<String, UsbDevice> stringUsbDeviceEntry : deviceList.entrySet()) {
            Toast.makeText(this, stringUsbDeviceEntry.getValue().getProductName()+"            "+stringUsbDeviceEntry.getValue().getManufacturerName(), Toast.LENGTH_SHORT).show();
            Log.e("www",stringUsbDeviceEntry.getKey()+"           "+stringUsbDeviceEntry.getValue().getProductName()+"            "+stringUsbDeviceEntry.getValue().getManufacturerName());
        }

PowerManager powerManager = (PowerManager) getSystemService(Context.POWER_SERVICE);
            powerManager.reboot("");