Question

我使用WifiManager扫描可用的wifi，

mainWifi = (WifiManager) getSystemService(Context.WIFI_SERVICE);
        mainWifi.startScan();

我可以获得网络列表。

但是当我在这种情况下尝试连接到Speecific wifi SSID String hotspot="some_wifi_name";时，它会将热点添加到WifiConfig，但之后它会在连接时进入无限循环并再次扫描结果，循环继续。

以下是Broadcast Receiver我用来连接我的SSID，

class WifiReceiver extends BroadcastReceiver {

    ArrayList<String> connections = new ArrayList<String>();
    WifiConfiguration conf;

    public void onReceive(Context c, Intent intent) {

        WifiManager wifiManager = (WifiManager) c
                .getSystemService(Context.WIFI_SERVICE);

        List<ScanResult> wifiList;
        wifiList = mainWifi.getScanResults();
        for (int i = 0; i < wifiList.size(); i++) {

            String ssid = wifiList.get(i).SSID;
            int rssi = wifiList.get(i).level;
            Log.d("SSID: ", "" + wifiList.get(i).SSID.toString()
                    + " signal: " + rssi);

            if (ssid != null && ssid.equals(hotspot)) {
                Log.d("SSID Hotspot: ",
                        "" + wifiList.get(i).SSID.toString());
                conf = new WifiConfiguration();
                conf.SSID = "\"" + hotspot + "\"";
                conf.allowedKeyManagement
                        .set(WifiConfiguration.KeyMgmt.NONE);
                wifiManager.addNetwork(conf);
            }
        }

        List<WifiConfiguration> list = wifiManager.getConfiguredNetworks();

        loops:
        for (WifiConfiguration j : list) {


            if (j.SSID != null && j.SSID.equals("\"" + hotspot + "\"")) {
                Log.d("Config", "" + j.SSID);
                wifiManager.disconnect();
                wifiManager.enableNetwork(j.networkId, true);

                wifiManager.reconnect();

            }
        }
    }
}

为什么它在获得所需的SSID后再次扫描wifi并进入无限循环，哪里是错误的。

Answer 1

此代码可让您连接到具体的SSID：

public void connectToWifi(String ssid) {

    WifiConfiguration conf = new WifiConfiguration();
    conf.SSID = "\"" + ssid + "\""; // Please note the quotes.
                                                // String should contain
                                                // ssid in quotes

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

    wifiMgr.addNetwork(conf);
    Log.d(TAG, ssid+" added");

    List<WifiConfiguration> list = wifiMgr.getConfiguredNetworks();
    for (WifiConfiguration i : list) {
        if (i.SSID != null && i.SSID.equals("\"" + ssid + "\"")) {
            wifiMgr.disconnect();
            wifiMgr.enableNetwork(i.networkId, true);
            wifiMgr.reconnect();
            Log.d(PluginConstants.LOG_TAG, "conneting to: ssid");
            break;
        }
    }
}

Answer 2

将A SSID添加到配置列表后，我取消注册了BroadcastReceiver。

所以在下次扫描后，该功能将无法执行。

无法从扫描结果连接SSID - Android

2 个答案: