wifi.py 文件源码

def choose_wifi(dialog_title='TiLDA'):
    filtered_aps = []
    with dialogs.WaitingMessage(text='Scanning for networks...', title=dialog_title):
        visible_aps = nic().list_aps()
        visible_aps.sort(key=lambda x:x['rssi'], reverse=True)
        # We'll get one result for each AP, so filter dupes
        for ap in visible_aps:
            title = ap['ssid']
            security = get_security_level(ap)
            if security:
                title = title + ' (%s)' % security
            ap = {
                'title': title,
                'ssid': ap['ssid'],
                'security': security,
            }
            if ap['ssid'] not in [ a['ssid'] for a in filtered_aps ]:
                filtered_aps.append(ap)
        del visible_aps

    ap = dialogs.prompt_option(
        filtered_aps,
        text='Choose wifi network',
        title=dialog_title
    )
    if ap:
        key = None
        if ap['security'] != 0:
            # Backward compat
            if ap['security'] == None:
                ap['security'] = 'wifi'

            key = dialogs.prompt_text(
                "Enter %s key" % ap['security'],
                width = 310,
                height = 220
            )
        with open("wifi.json", "wt") as file:
            if key:
                conn_details = {"ssid": ap['ssid'], "pw": key}
            else:
                conn_details = {"ssid": ap['ssid']}

            file.write(json.dumps(conn_details))
        os.sync()
        # We can't connect after scanning for some bizarre reason, so we reset instead
        pyb.hard_reset()