list

public void listView()
    {
        textView = (TextView) getView().findViewById(R.id.textView_count);
        int count;
        String dirPath = "/sys/bus/usb/devices";
        File dir = new File(dirPath);
        File[] filelist = dir.listFiles();
        String[] theNamesOfFiles = new String[filelist.length];
        for (int i = 0; i < theNamesOfFiles.length; i++)
        {
            theNamesOfFiles[i] = filelist[i].getName();
        }

        listView = (ListView) getView().findViewById(R.id.listView);
        ArrayAdapter<String> arrayAdapter = new ArrayAdapter<String>(getActivity(), android.R.layout.simple_list_item_1, theNamesOfFiles);
        listView.setAdapter(arrayAdapter);

        listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE);

        count = listView.getAdapter().getCount();
        textView.setText(count);

                listView.setOnItemClickListener(new AdapterView.OnItemClickListener()
        {
            @Override
            public void onItemClick(AdapterView<?> adapterView, View view, int i, long l)
            {
                Intent intent = new Intent(getActivity(),USBInfoAPI.class);
                startActivity(intent);
            }
        });
    }