Creating WPA2 PSK Access Point in Android Programmatically

问题

I want to create Access Point in android programmatically with the following configurations. AccessPointName :SomeName Security:WPA2 PSK Password:SomeKey

How can i do that? Regards

回答1:

I had faced this problem once. In order to create a WPA2 PSK access point, you need to populate the WifiConfiguartion object with your WPA2 PSK parameters. However I could not find a way to set KeyManagement as WPA2_PSK. There was only options for WPA_PSK, IEEE8021X, WPA_EAP and NONE. Then I read the android source code for WifiConfiguration.java. I was able to find out that indeed there is option for WPA2_PSK, but it is hidden by @hide, but it is an int with value 4. So what I did was to pass 4 in wifiConfiguration.allowedKeyManagement.set(4);. See code below.

WifiConfiguration wifiConfiguration = new WifiConfiguration();
wifiConfiguration.SSID = "SomeName";
wifiConfiguration.preSharedKey = "SomeKey";
wifiConfiguration.hiddenSSID = false;
wifiConfiguration.allowedAuthAlgorithms.set(WifiConfiguration.AuthAlgorithm.OPEN);
wifiConfiguration.allowedProtocols.set(WifiConfiguration.Protocol.RSN);
wifiConfiguration.allowedKeyManagement.set(4);
wifiConfiguration.allowedPairwiseCiphers.set(WifiConfiguration.PairwiseCipher.CCMP);
wifiConfiguration.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.CCMP);

And finally pass this wifiConfiguration using accesspoint as follows

WifiApControl apControl = WifiApControl.getInstance(context);

apControl.setEnabled(wifiConfiguration, true);

or else you can use this wifiConfiguration with reflection techniques in java to activate the access point.

回答2:

I was also facing same problem by passing 4 as KeyMangement solved my problem.

WifiConfiguration myConfig = new WifiConfiguration();
        myConfig.SSID = ssid; // SSID name of netwok
        myConfig.preSharedKey = password; // password for network
        myConfig.allowedKeyManagement.set(4); // 4 is for KeyMgmt.WPA2_PSK which is not exposed by android KeyMgmt class
        myConfig.allowedAuthAlgorithms.set(WifiConfiguration.AuthAlgorithm.OPEN); // Set Auth Algorithms to open
        try {
            Method method = mWifiManager.getClass().getMethod("setWifiApEnabled", WifiConfiguration.class, boolean.class);
            return (Boolean) method.invoke(mWifiManager, myConfig, true);  // setting and turing on android wifiap with new configrations
        } catch (Exception e) {
            e.printStackTrace();
        }

回答3:

There is a SO Thread at How to create access point programmatically.

However, if you see the code in that link, it is using JAVA Reflection technique to access underlying Android framework API. This is perhaps an indication that there is no direct API to toggle or program these system settings.

Also, looking at API Summary of Settings.System class in Android docs (BTW it is "final" class which gives hint that not too many things will be editable), there is no evidence that Android offers any API for apps to toggle/program system settings.

I gave the reference to that link only to highlight the fact that, to tweak Android system settings Such as APN, there seems to be no public/direct API provided by Android Framework, mostly because of Security Reasons.

We had a requirement in our project where I needed to programatically toggle internet radio, and in another case, I needed to dismiss Telephony dialog.

There is no public API to do that and only way to obtain desired result is using Reflection technique which is neither recommended nor portable and should be avoided.

回答4:

You can use accesspoint:

WifiApControl apControl = WifiApControl.getInstance(context);

apControl.setEnabled(wifiConfiguration, true);

You just need to populate the WifiConfiguartion object with your WPA2 PSK parameters.

来源：https://stackoverflow.com/questions/27653084/creating-wpa2-psk-access-point-in-android-programmatically

标签

android

android-wifi