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POMemory dumps when reading from server causes Android app to load too slowly
 

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    <p>I'm making an Android app for my WordPress blog and I've set up a static class Server.java in my Android app to communicate with a PHP file that I created on my hosting servers.</p> <p>I use URLConnection, DataOutputStream and DataInputStream to do the communication. One of my functions gets the latest 10 posts from my WordPress, and is retrieved the following way...</p> <p>In any of my java files, call <code>Server.getPosts();</code> Below is my Server.java file (the parts you need to see, at least)</p> <pre><code>public class Server { public static final String SERVER_URL = "http://www.startingtofeelit.com/android-server.php"; public static String getPosts() { return executeHttpRequest("command=getPosts"); } @SuppressWarnings("deprecation") private static String executeHttpRequest(String data) { String result = new String(); try { URL url = new URL(SERVER_URL); URLConnection connection = url.openConnection(); connection.setDoInput(true); connection.setDoOutput(true); connection.setUseCaches(false); connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded"); DataOutputStream dataOut = new DataOutputStream(connection.getOutputStream()); dataOut.writeBytes(data); dataOut.flush(); dataOut.close(); // get the response from the server and store it in result DataInputStream dataIn = new DataInputStream(connection.getInputStream()); String inputLine; while ((inputLine = dataIn.readLine()) != null) { result += inputLine; } dataIn.close(); } catch (IOException e) { result = null; } System.out.println("Returning from Server.java"); return result; } } </code></pre> <p>I got most of this code from a guide online. It returns a string that has the xml representation of my posts. If you'd like, you can view the xml/return string <a href="http://www.startingtofeelit.com/android-server.php?action=getPosts" rel="nofollow">here</a>, but that is not really necessary for you to help me.</p> <p>My main problem is here: I'm getting a huge amount of memory dumps. Something in the way my code is set up, I get massive amounts of memory dumps with the tag "dalvikvm" and the message <code>GC_CONCURRENT freed 312K, 5% free 9989K/10439K, paused 10ms+15ms</code> in my Eclipse LogCat, and other messages similar to that. It slows down the load of my app immensely. It seems to originating in my while loop, but I don't know how else to do this. Any help?</p>
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    1. COWhat device are you testing on? It looks like the GC is being called frequently because your heap size is tiny. Try adding the following in manifest under Application: android:largeHeap="true"
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      1. USSteve M
    2. COI'm testing it on my laptop, using the Android Virtual Device (of course). My virtual device has a VM Heap Size of 32 MB
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