以编程方式连接Android WiFi

Question

你知道如何在我的 android 应用程序中通过发送密码建立 wifi 连接吗？

Answer 1

将 SSID 及其密码传递给以下方法。

public void connectToAP(String ssid, String passkey) {
    Log.i(TAG, "* connectToAP");

    WifiConfiguration wifiConfiguration = new WifiConfiguration();

    String networkSSID = ssid;
    String networkPass = passkey;

    Log.d(TAG, "# password " + networkPass);

    for (ScanResult result : scanResultList) {
        if (result.SSID.equals(networkSSID)) {

            String securityMode = getScanResultSecurity(result);

            if (securityMode.equalsIgnoreCase("OPEN")) {

                wifiConfiguration.SSID = "\"" + networkSSID + "\"";
                wifiConfiguration.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.NONE);
                int res = wifiManager.addNetwork(wifiConfiguration);
                Log.d(TAG, "# add Network returned " + res);

                boolean b = wifiManager.enableNetwork(res, true);
                Log.d(TAG, "# enableNetwork returned " + b);

                wifiManager.setWifiEnabled(true);

            } else if (securityMode.equalsIgnoreCase("WEP")) {

                wifiConfiguration.SSID = "\"" + networkSSID + "\"";
                wifiConfiguration.wepKeys[0] = "\"" + networkPass + "\"";
                wifiConfiguration.wepTxKeyIndex = 0;
                wifiConfiguration.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.NONE);
                wifiConfiguration.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.WEP40);
                int res = wifiManager.addNetwork(wifiConfiguration);
                Log.d(TAG, "### 1 ### add Network returned " + res);

                boolean b = wifiManager.enableNetwork(res, true);
                Log.d(TAG, "# enableNetwork returned " + b);

                wifiManager.setWifiEnabled(true);
            }

            wifiConfiguration.SSID = "\"" + networkSSID + "\"";
            wifiConfiguration.preSharedKey = "\"" + networkPass + "\"";
            wifiConfiguration.hiddenSSID = true;
            wifiConfiguration.status = WifiConfiguration.Status.ENABLED;
            wifiConfiguration.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.TKIP);
            wifiConfiguration.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.CCMP);
            wifiConfiguration.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.WPA_PSK);
            wifiConfiguration.allowedPairwiseCiphers.set(WifiConfiguration.PairwiseCipher.TKIP);
            wifiConfiguration.allowedPairwiseCiphers.set(WifiConfiguration.PairwiseCipher.CCMP);
            wifiConfiguration.allowedProtocols.set(WifiConfiguration.Protocol.RSN);
            wifiConfiguration.allowedProtocols.set(WifiConfiguration.Protocol.WPA);

            int res = wifiManager.addNetwork(wifiConfiguration);
            Log.d(TAG, "### 2 ### add Network returned " + res);

            wifiManager.enableNetwork(res, true);

            boolean changeHappen = wifiManager.saveConfiguration();

            if(res != -1 && changeHappen){
                Log.d(TAG, "### Change happen");

                AppStaticVar.connectedSsidName = networkSSID;

            }else{
                Log.d(TAG, "*** Change NOT happen");
            }

            wifiManager.setWifiEnabled(true);
        }
    }
}

public String getScanResultSecurity(ScanResult scanResult) {
    Log.i(TAG, "* getScanResultSecurity");

    final String cap = scanResult.capabilities;
    final String[] securityModes = { "WEP", "PSK", "EAP" };

    for (int i = securityModes.length - 1; i >= 0; i--) {
        if (cap.contains(securityModes[i])) {
            return securityModes[i];
        }
    }

    return "OPEN";
}

不要忘记在 list 文件中添加必要的权限。