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POBest option to implement Networking Class
 

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  1. POBest option to implement Networking Class
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    <p>I am starting a project that will access a Xmpp server in the background. It will maintain the connection alive and reconnect when required + do other Xmpp things.</p> <p>I want to implement a class to do the work. The class will have to interact with other <code>Services</code> (<code>Location</code>...), and <code>BroadcastReceivers</code> (CONNECTIVITY_CHANGE ....). Basically, Activities and Broadcast receivers will ask the Xmpp Class to start an action like: CONNECT, DISCONNECT, RECONNECT, JOIN CHAT, SEND MESSAGE etc.</p> <p>First approach is to implement it as a <code>Service</code> but a service runs in the main thread so the implementation is wrong.</p> <p>Secondly, I wanted to make it as an <code>IntentService</code> because the <code>onHandleIntent</code> is run async and then I am out of the main thread.</p> <p>But the <code>onHandleIntent</code> is run only once to perform an async task. So, if I want an <code>Activity</code> to perform another "action", I can only send a broadcast event and I will fall in the main thread problem again. Also, <code>IntentService</code> is not really aimed to be 'live' all the time.</p> <p>In the Google documentation, they say you need to run <code>AsyncTask</code> for each network access ... is this the only way to make a network access ... this is pretty sad.</p> <p>I had a look on the implementation in the GTalkSMS and they seemed to have the same problem. Actually they use a <code>Service</code> with a <code>ServiceHandler</code> management like this:</p> <blockquote> <pre><code>// some stuff for the async service implementation - borrowed heavily from // the standard IntentService, but that class doesn't offer fine enough // control for "foreground" services. private static volatile Looper sServiceLooper; private static volatile ServiceHandler sServiceHandler; private final class ServiceHandler extends Handler { public ServiceHandler(Looper looper) { super(looper); } @Override public void handleMessage(Message msg) { onHandleIntent((Intent) msg.obj, msg.arg1); } } </code></pre> </blockquote>
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