Question

你知道如何在我的Android应用程序中建立一个发送密码的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";
}

不要忘记在清单文件中添加必要的权限。

Answer 2

100％有效。

通过这种方式，您可以连接到您的特定Wifi 此代码适用于MainActivity.java

//////////////＆gt;＆gt;＆gt; Wifi连接（WP2）＆lt;＆lt;＆lt; ////////////////

        WifiConfiguration wifiConfig = new WifiConfiguration();

        wifiConfig.SSID = String.format("\"%s\"", "Wifi name");
        wifiConfig.preSharedKey = String.format("\"%s\"", "Wifi password");

        WifiManager wifiManager=(WifiManager)getSystemService(WIFI_SERVICE);
        int netId = wifiManager.addNetwork(wifiConfig);
        wifiManager.disconnect();
        wifiManager.enableNetwork(netId, true);
        wifiManager.reconnect();

另外不要忘记将此代码包含在AndroidManifest.xml

中

<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.INTERNET" />

Answer 3

从AnujAroshA发布的代码非常有用。但是还有其他案例缺失：

  ..
  } else if (securityMode.equalsIgnoreCase("PSK")) {
    // PSK code
  ..

否则，也会为WEP和OPEN网络执行PSK代码。

在我看来，代码风格并不是最优的。没有必要创建两个Strings networkSSID和networkPass。你可以简单地使用ssid或passkey。

建议：拆分创建wifi配置和连接方法。

（1）创建WifiConfiguration的方法：

private WifiConfiguration createAPConfiguration(String networkSSID, String networkPasskey, String securityMode) {
        WifiConfiguration wifiConfiguration = new WifiConfiguration();

        wifiConfiguration.SSID = "\"" + networkSSID + "\"";

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

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

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

            wifiConfiguration.wepKeys[0] = "\"" + networkPasskey + "\"";
            wifiConfiguration.wepTxKeyIndex = 0;
            wifiConfiguration.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.NONE);
            wifiConfiguration.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.WEP40);

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

            wifiConfiguration.preSharedKey = "\"" + networkPasskey + "\"";
            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);

        } else {
            Log.i(TAG, "# Unsupported security mode: "+securityMode);

            return null;
        }

        return wifiConfiguration;

    }

（2）AP连接方法：

    public int connectToAP(String networkSSID, String networkPasskey) {
    for (ScanResult result : scanResultList) {

        if (result.SSID.equals(networkSSID)) {

            String securityMode = getScanResultSecurity(result);

            WifiConfiguration wifiConfiguration = createAPConfiguration(networkSSID, networkPasskey, securityMode);

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

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

            wifiManager.setWifiEnabled(true);

            boolean changeHappen = wifiManager.saveConfiguration();

            if (res != -1 && changeHappen) {
                Log.d(TAG, "# Change happen");
                connectedSsidName = networkSSID;
            } else {
                Log.d(TAG, "# Change NOT happen");
            }

            return res;
        }
    }

    return -1;
}

（3）扫描方法100％已发布AnujAroshA。

public String getScanResultSecurity(ScanResult scanResult) {

    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";
}

Answer 4

提供您的ssid和密码

    fun connectToWifi(ssid: String, password: String) {
    val connManager = context!!.getSystemService(Context.CONNECTIVITY_SERVICE) as ConnectivityManager
    val networkInfo = connManager.getNetworkInfo(ConnectivityManager.TYPE_WIFI)
    val wifiConfiguration = WifiConfiguration()
    wifiConfiguration.SSID = String.format("\"%s\"", ssid)
    wifiConfiguration.preSharedKey = String.format("\"%s\"", password)
    wifiManager = context!!.getSystemService(Context.WIFI_SERVICE) as WifiManager
    val netId: Int = wifiManager.addNetwork(wifiConfiguration)
    wifiManager.disconnect()
    wifiManager.enableNetwork(netId, true)
    wifiManager.reconnect()
    val config = WifiConfiguration()
    config.SSID == "\"\"" + ssid + "\"\""
    config.preSharedKey == "\"\"" + password + "\"\""
    wifiManager.addNetwork(config)
}

以编程方式安装Android WiFi

4 个答案: