Android HTTP Connection

Question

Can anybody tell my why this doesn't work in the Android emulator? From the browser I have access and the server is internal. All I can think of is that I'm missing some configuration on my app so it can access the network layer.

try {
    InetAddress server = Inet4Address.getByName("thehost");
    //Doesn't work either
    //or InetAddress server2 = Inet4Address.getByAddress(new String("192.168.1.30").getBytes());

    if(server.isReachable(5000)){
        Log.d(TAG, "Ping!");
    }

    Socket clientsocket = new Socket(server, 8080);
} catch (UnknownHostException e) {
    Log.e(TAG, "Server Not Found");
} catch (IOException e) {
    Log.e(TAG, "Couldn't open socket");
}

Throws an UnknownHostException

Thanks

Solution

As far as configuration goes, the only setting you should need to access the Internet from your application is the INTERNET permission, enabled by adding the following line outside the Application tags within your application Manifest.

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

So the manifest would follow this general construction

<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.example.android.apis">    
  <uses-permission android:name="android.permission.INTERNET" />
  <application 
    android:name="MyApplication"    
    android:label="@string/application_title"
    android:icon="@drawable/my_icon">
    [ .. Your Activities go here ]
  </application>
</manifest>