Android timed Tasks

Ideas

1. Invoke the scheduled task service in the main activity;
2. Implement business logic within a timed task service "This example prints only one time log" and sends a message to alarm;
3. Alarm Broadcast callback timer task service;

"2" "3" realizes closed loop loop.

Effect

 -- - Ten: -:45.461  10265-18533/cf. ICBD. AboutserviceD/cbd:longrunningservice:mon Jul - Ten: -: $gmt+ ,:xx  - -- - Ten: -:50.522  10265-18637/cf. ICBD. AboutserviceD/cbd:longrunningservice:mon Jul - Ten: -: -gmt+ ,:xx  - -- - Ten: -:55.545  10265-18774/cf. ICBD. AboutserviceD/cbd:longrunningservice:mon Jul - Ten: -: -gmt+ ,:xx  - -- - Ten: $:00.587  10265-18900/cf. ICBD. AboutserviceD/cbd:longrunningservice:mon Jul - Ten: $:xxgmt+ ,:xx  - -- - Ten: $:05.617  10265-18998/cf. ICBD. AboutserviceD/cbd:longrunningservice:mon Jul - Ten: $: togmt+ ,:xx  - -- - Ten: $:10.640  10265-19104/cf. ICBD. AboutserviceD/cbd:longrunningservice:mon Jul - Ten: $:Tengmt+ ,:xx  - -- - Ten: $:15.682  10265-19198/cf. ICBD. AboutserviceD/cbd:longrunningservice:mon Jul - Ten: $: thegmt+ ,:xx  - -- - Ten: $:20.734  10265-19299/cf. ICBD. AboutserviceD/cbd:longrunningservice:mon Jul - Ten: $: -gmt+ ,:xx  - -- - Ten: $:25.765  10265-19410/cf. ICBD. AboutserviceD/cbd:longrunningservice:mon Jul - Ten: $: -gmt+ ,:xx  - -- - Ten: $:30.813  10265-19525/cf. ICBD. AboutserviceD/cbd:longrunningservice:mon Jul - Ten: $: -gmt+ ,:xx  - -- - Ten: $:35.847  10265-19547/cf. ICBD. AboutserviceD/cbd:longrunningservice:mon Jul - Ten: $: *gmt+ ,:xx  - -- - Ten: $:40.899  10265-19572/cf. ICBD. AboutserviceD/cbd:longrunningservice:mon Jul - Ten: $: +gmt+ ,:xx  - -- - Ten: $:45.917  10265-19610/cf. ICBD. AboutserviceD/cbd:longrunningservice:mon Jul - Ten: $: $gmt+ ,:xx  - -- - Ten: $:50.959  10265-19658/cf. ICBD. AboutserviceD/cbd:longrunningservice:mon Jul - Ten: $: -gmt+ ,:xx  - -- - Ten: $:55.986  10265-19682/cf. ICBD. AboutserviceD/cbd:longrunningservice:mon Jul - Ten: $: -gmt+ ,:xx  - -- - Ten: $:01.036  10265-19723/cf. ICBD. AboutserviceD/cbd:longrunningservice:mon Jul - Ten: $: ongmt+ ,:xx  - -- - Ten: $:06.059  10265-19734/cf. ICBD. AboutserviceD/cbd:longrunningservice:mon Jul - Ten: $: .gmt+ ,:xx  - -- - Ten: $:11.112  10265-19755/cf. ICBD. AboutserviceD/cbd:longrunningservice:mon Jul - Ten: $: Onegmt+ ,:xx  -

Mainactivity.java

publicclass MainActivity extends Activity {    @Override    protectedvoidonCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        new Intent(MainActivity.this , LongRunningService.class) ;        startService(intent) ;    }}

Longrunningservice.java

 Public  class longrunningservice extends Service {     Public Longrunningservice() {    }@Override     PublicIBinderOnbind(Intent Intent) {//Todo:return The communication channel to the service.        Throw NewUnsupportedoperationexception ("not yet implemented"); }@Override     Public int Onstartcommand(Intent Intent,intFlagsintStartid) {NewThread (NewRunnable () {@Override                     Public void Run() {LOG.D ("CBD","Longrunningservice:"+NewDate (). toString ());        }}). Start ();        Alarmmanager Alarmmanager = (alarmmanager) getsystemservice (Alarm_service); Intent intent1 =NewIntent ( This, Alarmreceiver.class);//Trigger broadcast, broadcast callback this method, implement loopPendingintent pendingintent = Pendingintent.getbroadcast ( This,0, Intent1,0) ;LongTriggertime = Systemclock.elapsedrealtime () +5* +;//Trigger once every 5 secondsAlarmmanager.setexact (alarmmanager.elapsed_realtime_wakeup,triggertime,pendingintent);return Super. Onstartcommand (Intent, flags, Startid); }}

Alarmreceiver.java

publicclass AlarmReceiver extends BroadcastReceiver {    publicAlarmReceiver() {    }    @Override    publicvoidonReceive(Context context, Intent intent) {        new Intent(context, LongRunningService.class) ;        context.startService(i) ;    }}

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Android timed Tasks