Android Programming Tutorials

Now, Your Friends Are Alarmed

package="apt.tutorial.two"

android:versionCode="1"

android:versionName="1.0">

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

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

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

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

<application android:label="@string/app_name">

<uses-library android:name="com.google.android.maps" />

<activity android:name=".Patchy"

android:label="@string/app_name">

<intent-filter>

<action android:name="android.intent.action.MAIN" />

<category android:name="android.intent.category.LAUNCHER" />

</intent-filter>

</activity>

<activity android:name=".EditPreferences">

</activity>

<activity android:name=".StatusMap">

</activity>

<activity android:name=".HelpCast">

</activity>

<activity android:name=".HelpPage">

</activity>

<service android:name=".PostMonitor" />

<receiver android:name=".OnAlarmReceiver">

</receiver>

</application>

</manifest>

OnAlarmReceiver tells WakefulIntentService to sendWakefulWork(), which will:

• Acquire a static WakeLock, then


• Call startService() on our PostMonitor service

This means all WakeLock management can be encapsulated in

WakefulIntentService.

Step #3: Doing the Work

Now, we need to arrange for PostMonitor to respond to those polling

Intents.

First, change PostMonitor to have it extend WakefulIntentService, adding an

import for com.commonsware.cwac.wakeful.WakefulIntentService.

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