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POHow to kill a TimerTask created from an IntentService with a button
 

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  1. POHow to kill a TimerTask created from an IntentService with a button
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    <p>I'm making a Cloud Service that uses a standard HTTP get to get commands. I use a service (extending class IntentService as opposed to Service) to keep things in sync. I have the checking going on in a TimerTask firing off every 3 seconds. The problem is that when the user goes back to the activity to turn it off if they want, they press a toggle button. How do I tell the TimerTask (or the IntentService running a timer task) to stop and start it?</p> <p>The service itself is getting destroyed after it handles the intent and creates the task, so would a Service be more appropriate for this than an IntentService? Even if thats the case, the question about stopping and starting the TimerTask remains.</p> <p>Here's the code to the intentservice:</p> <pre><code>import java.io.IOException; import java.util.Timer; import java.util.TimerTask; import org.apache.http.client.ClientProtocolException; import org.apache.http.client.ResponseHandler; import org.apache.http.client.methods.HttpGet; import org.apache.http.impl.client.BasicResponseHandler; import org.apache.http.impl.client.DefaultHttpClient; import android.app.*; import android.content.Context; import android.content.Intent; import android.content.SharedPreferences; import android.os.Handler; import android.widget.*; public class syncservice extends IntentService { /** * A constructor is required, and must call the super IntentService(String) * constructor with a name for the worker thread. */ public syncservice() { super("syncservice"); } public static final String PREFS_NAME = "prefcs"; /** * The IntentService calls this method from the default worker thread with * the intent that started the service. When this method returns, IntentService * stops the service, as appropriate. */ @Override public int onStartCommand(Intent intent, int flags, int startId) { final String uid = intent.getExtras().get("uid").toString(); final String dvname = intent.getExtras().get("dvname").toString(); final long period = intent.getExtras().getLong("period"); final Context ctx = getApplicationContext(); final Toast toast = Toast.makeText(ctx,"An error occured with the service. It will automatically turn off.", 0); final Handler handler = new Handler(); TimerTask timertask = new TimerTask () { @Override public void run() { SharedPreferences settings = getSharedPreferences(PREFS_NAME, 0); if (settings.getBoolean("doservice", false)) { String command = netread("url here"); //TODO Parse command from Pulling if (command.contains("&lt;")) { //TODO what to do if an error occurred (exceptions already caught Runnable showerrormessage = new Runnable() { public void run() { toast.makeText(ctx,"new text",0); toast.show(); } }; handler.post(showerrormessage); } } } }; Timer timer = new Timer(); timer.schedule(timertask,0,period); return super.onStartCommand(intent,flags,startId); } public void onDestroy() { Toast.makeText(getApplicationContext(), "The Service has died", Toast.LENGTH_SHORT).show(); return; } @Override protected void onHandleIntent(Intent intent) { Toast.makeText(getApplicationContext(), "Intent Handled", 0).show(); } public final String netread(String url) { try { DefaultHttpClient httpClient = new DefaultHttpClient(); HttpGet httpGet = new HttpGet(url); ResponseHandler&lt;String&gt; resHandler = new BasicResponseHandler(); String page = httpClient.execute(httpGet, resHandler); return page; } catch (ClientProtocolException e) { //Toast.makeText(getApplicationContext(),"Client Protocol Exception! Try again.",0).show(); return "&lt;"; } catch (IOException e) { //Toast.makeText(getApplicationContext(),"IO Exception! Make sure you are connected to the internet and try again.", 0).show(); return "&lt;"; } } } </code></pre> <p>Thanks a bunch for helping me out!</p>
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