Alarmmanager and alarm

Package mars.com; import android. app. activity; import android. app. alarmmanager; import android. app. pendingintent; import android. content. intent; import android. OS. bundle; import android. view. view; import android. view. view. onclicklistener; import android. widget. button; public class demoserviceactivity extends activity {private button button1; @ overridepublic void oncreate (bundle savedinstancestate) {super. oncreate (savedinstancestate); setcontentview (R. layout. main); button1 = (button) findviewbyid (R. id. button1); Final alarmmanager = (alarmmanager) getsystemservice (alarm_service); Final intent = new intent (); intent. setaction ("mars.com. my_action "); intent. putextra ("message", "coming off duty"); Final pendingintent = pendingintent. getbroadcast (getapplicationcontext (), 0, intent, 0); Final long time = system. currenttimemillis (); // set the current time to button1.setonclicklistener (New onclicklistener () {public void onclick (view v) {alarmmanager. setrepeating (alarmmanager. rtc_wakeup, time, 8000, pendingintent); // you can specify an exact duplicate reminder. // alarmmanager. set (alarmmanager. RTC, time, pendingintent); // set a single alarm reminder // alarmmanager. setinexactrepeating (alarmmanager. rtc_wakeup, time, // 8000, pendingintent); // sets an inaccurate duplicate reminder // alarmmanager. cancel (pendingintent); // cancel the alarm }});}}

Package mars.com; import android. content. broadcastreceiver; import android. content. context; import android. content. intent; import android. widget. toast; public class myreceiver extends broadcastreceiver {@ overridepublic void onreceive (context, intent) {toast. maketext (context, "trigger a single alarm" + intent. getstringextra ("message"), toast. length_short ). show ();}}

Declare aggreger

<?xml version="1.0" encoding="utf-8"?><manifest xmlns:android="http://schemas.android.com/apk/res/android"    package="mars.com"    android:versionCode="1"    android:versionName="1.0" >    <uses-sdk android:minSdkVersion="8" />    <application        android:icon="@drawable/ic_launcher"        android:label="@string/app_name" >        <activity            android:name=".DemoServiceActivity"            android:label="@string/app_name" >            <intent-filter>                <action android:name="android.intent.action.MAIN" />                <category android:name="android.intent.category.LAUNCHER" />            </intent-filter>        </activity>        <receiver android:name="MyReceiver" >            <intent-filter>                <action android:name="mars.com.MY_ACTION" >                </action>            </intent-filter>        </receiver>    </application></manifest>