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POHow to Run a Service on Boot in Android 2.3 (Gingerbread) without crashing
 

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  1. POHow to Run a Service on Boot in Android 2.3 (Gingerbread) without crashing
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    <p>I followed several instructions in how to run a service on boot.</p> <p>In <strong>Android 2.2</strong> everything works OK.</p> <p>I noticed that in <strong>Android 2.3</strong> the process crashes and ActivityManager schedules the service to restart over and over.</p> <p>In my service I want to <code>doSomething()</code> every 5 seconds! For this, I'm using a TimerTask.</p> <p>Here is <strong>MyService.java</strong> code:</p> <pre><code>package example.service; import java.util.Timer; import java.util.TimerTask; import android.app.Service; import android.content.Intent; import android.os.IBinder; import android.util.Log; public class MyService extends Service { private static final String TAG = "MyService"; private static final int TIMER_SECONDS = 5; private Timer doSomethingTimer; @Override public IBinder onBind(Intent intent) { return null; } @Override public void onCreate() { super.onCreate(); Log.d(TAG, TAG + ": My Service Created"); } @Override public void onDestroy() { super.onDestroy(); Log.d(TAG, TAG + ": My Service Destroyed"); } @Override public int onStartCommand(Intent intent, int flags, int startId) { super.onStartCommand(intent, flags, startId); initDoSomethingTimer(); Log.d(TAG, TAG + ": My Service Started"); return START_STICKY; } private void initDoSomethingTimer() { doSomethingTimer = new Timer(); doSomethingTimer.schedule(new TimerTask() { @Override public void run() { doSomething(); } }, 0, TIMER_SECONDS * 1000); } private void doSomething() { Log.d(TAG, TAG + ": did something!!"); } } </code></pre> <p>Here is <strong>MyStartupIntentReceiver.java</strong> code:</p> <pre><code>package example.service; import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; public class MyStartupIntentReceiver extends BroadcastReceiver { @Override public void onReceive(Context context, Intent intent) { Intent serviceIntent = new Intent(); serviceIntent.setAction("example.service.MyService"); context.startService(serviceIntent); } } </code></pre> <p>and, finnally my <strong>AndroidManifest.xml</strong> file:</p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;manifest xmlns:android="http://schemas.android.com/apk/res/android" android:installLocation="internalOnly" package="example.service" android:versionCode="1" android:versionName="1.0" &gt; &lt;uses-sdk android:minSdkVersion="10" /&gt; &lt;uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" /&gt; &lt;application android:icon="@drawable/ic_launcher" android:label="@string/app_name" &gt; &lt;service android:name=".MyService" &gt; &lt;intent-filter&gt; &lt;action android:name="example.service.MyService" /&gt; &lt;/intent-filter&gt; &lt;/service&gt; &lt;receiver android:name=".MyStartupIntentReceiver" &gt; &lt;intent-filter&gt; &lt;action android:name="android.intent.action.BOOT_COMPLETED" /&gt; &lt;category android:name="android.intent.category.DEFAULT" /&gt; &lt;/intent-filter&gt; &lt;/receiver&gt; &lt;/application&gt; &lt;/manifest&gt; </code></pre> <p>The result is not famous :( After the boot, the service is created, but <strong>not started</strong>, and then crashes and ActivityManager schedule to restart it - and start the loop! Here is what we can see at <strong>Logcat</strong>:</p> <pre><code>I/ActivityManager( 187): Start proc example.service for service example.service/.MyService: pid=615 uid=10052 gids={} D/MyService( 615): MyService: My Service Created (...) I/Process ( 187): Sending signal. PID: 615 SIG: 9 W/ActivityManager( 187): Scheduling restart of crashed service example.service/.MyService in 59628ms (...) I/ActivityManager( 187): Start proc example.service for service example.service/.MyService: pid=639 uid=10052 gids={} D/MyService( 639): MyService: My Service Created (...) I/Process ( 187): Sending signal. PID: 639 SIG: 9 W/ActivityManager( 187): Scheduling restart of crashed service example.service/.MyService in 238512ms </code></pre> <p>Any suggestions?! I'm stuck. I noticed that other services besides this new one (without the timertask) started to crash in <strong>Android 2.3</strong>, with the same errors.</p>
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    1. USMat Nadrofsky
    1. USJorge
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    1. COSince it's getting killed for a crash - what's the stack trace in the logcat?
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    2. CO@Jens this is all information i got from logcat.
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    3. COWell, I tested your application on a bog-standard 2.3.7 device and it worked just fine btw.
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