java - 使用 WifiManager 连接到无线网络 (wpa2)

Question

尝试创建一个 NFC 标签应用，将 Wifi 凭据存储在 NFC 标签上，然后将其读出。从那里我获取字符串并使用它并通过 wifimanager 放置凭据以连接到无线网络。我很确定我的代码是正确的，但它仍然没有连接。我错过了什么吗？我尝试连接的 channel 是 WPA2。

我如何为函数提取数据:

@Override
        public void onClick(View v)
        {
            String payload = _textViewData.getText().toString();
            String[] parts = payload.split("-");
            String SSID = parts[0];
            String Password = parts[1];

            part1.setText(SSID);
            part2.setText(Password);
            connectToWifi(SSID, Password);

        }
    });

更新:连接函数

 private void connectToWifi(final String networkSSID, final String networkPassword){
    if (!wifiManager.isWifiEnabled()){
        wifiManager.setWifiEnabled(true);
    }
    WifiConfiguration conf = new WifiConfiguration();
    conf.SSID = String.format("\"%s\"", networkSSID);
    conf.preSharedKey = "\""+ networkPassword +"\"";

    WifiManager wifiManager = (WifiManager)this.getSystemService(Context.WIFI_SERVICE);
    wifiManager.addNetwork(conf);

    List<WifiConfiguration> wifiList = wifiManager.getConfiguredNetworks();
    for( WifiConfiguration i : wifiList ) {
        if(i.SSID != null && i.SSID.equals("\"" + networkSSID + "\"")) {
            wifiManager.disconnect();
            wifiManager.enableNetwork(i.networkId, true);
            wifiManager.reconnect();

            break;
        }
    }
}

更新 2:

我将我的网络切换到 WPA 并且它有效，但似乎不适用于 WPA2，这可能吗？

Answer 1

要连接 WPA 网络，您需要像这样添加密码:

conf.preSharedKey = "\""+ networkPass +"\"";

对于开放网络，您需要这样做:

conf.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.NONE);

然后，您需要将其添加到 Android wifi 管理器设置中:

WifiManager wifiManager = (WifiManager)context.getSystemService(Context.WIFI_SERVICE); 
wifiManager.addNetwork(conf);

之后你必须启用它。

List<WifiConfiguration> wifiList = wifiManager.getConfiguredNetworks();
        for( WifiConfiguration i : wifiList ) {
            if(i.SSID != null && i.SSID.equals("\"" + networkSSID + "\"")) {
                 wifiManager.disconnect();
                 wifiManager.enableNetwork(i.networkId, true);
                wifiManager.status = WifiConfiguration.Status.ENABLED;                                         
wifiManager.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.TKIP);                                           
wifiManager.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.CCMP);                                           
wifiManager.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.WPA_PSK);                                            
wifiManager.allowedPairwiseCiphers.set(WifiConfiguration.PairwiseCipher.TKIP);                                           wifiManager.allowedPairwiseCiphers.set(WifiConfiguration.PairwiseCipher.CCMP);                                        wifiManager.allowedProtocols.set(WifiConfiguration.Protocol.RSN);                                          wifiManager.allowedProtocols.set(WifiConfiguration.Protocol.WPA);
                 wifiManager.reconnect();               

                 break;
            }           
         }

编码愉快!!