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POAndroid application Wi-Fi device - AP connectivity
 

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  1. POAndroid application Wi-Fi device - AP connectivity
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    <p>I am building an application which can transfer data between a mobile and a Wi-Fi device... The mobile has got the <a href="http://en.wikipedia.org/wiki/Wireless_access_point" rel="nofollow noreferrer">AP</a> enabled (through code) and another device connects to this specific network... How can I detect through code to see the details of the devices connected to the network(AP)?** Is there a solution for this?</p> <p>I have seen an application called <em>Wifi Hot spot</em> in <a href="http://en.wikipedia.org/wiki/HTC_Desire" rel="nofollow noreferrer">HTC Desire</a> that does this functionality of showing the IP addresses of the devices connected to the network. How can this be achieved?</p> <p>Check out <em><a href="http://www.goodandevo.net/2010/05/review-sprint-mobile-hotspot-on-htc-evo-4g.html?cid=6a00d83451c9ec69e20133ef0db4e3970b" rel="nofollow noreferrer">Review: Sprint Mobile Hotspot on HTC EVO 4G</a></em>.</p> <p>It shows an application that can actually display the connected users. How can we do that programmatically? Is there an API for that?</p> <p>For creating an access point:</p> <pre><code>private void createWifiAccessPoint() { if (wifiManager.isWifiEnabled()) { wifiManager.setWifiEnabled(false); } Method[] wmMethods = wifiManager.getClass().getDeclaredMethods(); //Get all declared methods in WifiManager class boolean methodFound = false; for (Method method: wmMethods){ if (method.getName().equals("setWifiApEnabled")){ methodFound = true; WifiConfiguration netConfig = new WifiConfiguration(); netConfig.SSID = "\""+ssid+"\""; netConfig.allowedAuthAlgorithms.set(WifiConfiguration.AuthAlgorithm.OPEN); //netConfig.allowedProtocols.set(WifiConfiguration.Protocol.RSN); //netConfig.allowedProtocols.set(WifiConfiguration.Protocol.WPA); //netConfig.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.WPA_PSK); //netConfig.preSharedKey = password; //netConfig.allowedPairwiseCiphers.set(WifiConfiguration.PairwiseCipher.CCMP); //netConfig.allowedPairwiseCiphers.set(WifiConfiguration.PairwiseCipher.TKIP); //netConfig.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.CCMP); //netConfig.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.TKIP); try { boolean apstatus = (Boolean) method.invoke(wifiManager, netConfig,true); //statusView.setText("Creating a Wi-Fi Network \""+netConfig.SSID+"\""); for (Method isWifiApEnabledmethod: wmMethods) { if (isWifiApEnabledmethod.getName().equals("isWifiApEnabled")){ while (!(Boolean)isWifiApEnabledmethod.invoke(wifiManager)){ }; for (Method method1: wmMethods){ if(method1.getName().equals("getWifiApState")){ int apstate; apstate = (Integer)method1.invoke(wifiManager); // netConfig = (WifiConfiguration)method1.invoke(wifi); //statusView.append("\nSSID:"+netConfig.SSID+"\nPassword:"+netConfig.preSharedKey+"\n"); } } } } if(apstatus) { System.out.println("SUCCESSdddd"); //statusView.append("\nAccess Point Created!"); //finish(); //Intent searchSensorsIntent = new Intent(this,SearchSensors.class); //startActivity(searchSensorsIntent); } else { System.out.println("FAILED"); //statusView.append("\nAccess Point Creation failed!"); } } catch (IllegalArgumentException e) { e.printStackTrace(); } catch (IllegalAccessException e) { e.printStackTrace(); } catch (InvocationTargetException e) { e.printStackTrace(); } } } if (!methodFound){ //statusView.setText("Your phone's API does not contain setWifiApEnabled method to configure an access point"); } } </code></pre>
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    1. COThats not right, the WiFi Hotspot on the HTC Desire doesn't show you which devices are connected to the same WiFi-Network than the Desire but it opens a own WiFi-Hotspot (and so a WiFi-Network) and acts as a own access point. That is why it can display the connected devices, because it is its own network.
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    2. COOk....i am programmatically able to establish a Wifi-Access point... Now will be able to detect the devices connected to this network ?
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      1. POAndroid application Wi-Fi device - AP connectivity
      1. USArun Abraham
    3. COWhere do you essablish the Access-Point? On an Non-Android-Device? Then yes. On Android it will get quite difficult without root-access to get the data in a normal app.
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