Android-use Broadcast to open service (turn)

Broadcast and service are one of Android's four main components.

The broadcast here is dynamic and registers itself with a broadcast.

The most typical use is to use the power-on broadcast, and then start their own services, that is, in the Android phone to open the boot.

Service and broadcast

public class MyService extends Service {    private myreceiver receiver;    @Override public    IBinder onbind (Intent Intent) {        //TODO auto-generated method stub        return null;    }    private void Methodinservice () {        Toast.maketext (this, "I am the method of service", Toast.length_long). Show ()    ;    @Override public    void OnCreate () {        receiver = new Myreceiver ();        Intentfilter filter = new Intentfilter ();        Filter.addaction ("Com.yydcdut.braodcasttoservice");        Registerreceiver (receiver, filter);        Super.oncreate ();    }    Private class Myreceiver extends Broadcastreceiver {        @Override public        void OnReceive (context context, Intent Intent) {            System.out.println ("I am the broadcast recipient inside the service!!");            Methodinservice ();        }    }    @Override public    void OnDestroy () {        unregisterreceiver (receiver);        receiver = null;        Super.ondestroy ();    }}

The myreceiver here is an internal class that does not register the build in Androidmanifest.xml, then it needs to perform the action of registering the broadcast.

Receiver = new Myreceiver ();        Intentfilter filter = new Intentfilter ();        Filter.addaction ("Com.yydcdut.braodcasttoservice");        Registerreceiver (receiver, filter);

Intentfilter is the same as the manifest inside. Also register also have to write off, when this service destroy, write off the broadcast.

Mainactivity

public class Mainactivity extends Activity {    @Override    protected void onCreate (Bundle savedinstancestate) {        super.oncreate (savedinstancestate);        Setcontentview (r.layout.activity_main);        Intent Intent = new Intent (this,myservice.class);        StartService (intent);    }    Button public    void Call (view view)    {        Intent Intent = new Intent ();        Intent.setaction ("Com.yydcdut.braodcasttoservice");        Sendbroadcast (intent);    }}

Com.yydcdut.braodcasttoservice this echo, the broadcast found this action.

I'm the dividing line of the king of the Land Tiger.

Source code: HTTP://PAN.BAIDU.COM/S/1DD1QX01

Method of invoking a service using a broadcast. zip

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