Android Event Listener Processing

<span id="Label3"></p><p><p>The processing model for event snooping consists of three members: event sources, events, and event Listeners.<br></p></p><p><p>The Listener-based event processing model typically consists of several steps:</p></p>1, access to common interface components;<br>2. Implement event Listener Class<br>3. Register the Listener object with the normal component<br><p><p>When a specified event occurs on the event source, Android triggers the corresponding event listener, and the event listener invokes the appropriate method to handle the Event.</p></p><p><p></p></p><pre name="code" class="java">public class Remotecontrolactivity extends Activity {EditText ipet; EditText socketet; Button button; @Override public void OnCreate (Bundle Savedinstancestate) {super.oncreate (savedinstancestate); Setcontentview (r.layout.main); Ipet = (EditText) Findviewbyid (r.id.ipedittext); Socketet = (EditText) Findviewbyid (r.id.socketedittext); Gets the button component named Connectbutton in the program button = (button) Findviewbyid (r.id.connectbutton); Binds the event listener to the button and implements the Listener Class's method  button.setonclicklistener (new onclicklistener () {@Override public voi D onClick (View v) {String ipnum = ipet.gettext (). toString (); int socketnum = Integer.parseint (socketet.gettext (). toString ()); Settings.ipnum =ipnum; Settings.scoketnum = socketnum; Try {datagramsocket socket = new Datagramsocket (); InetAddress serveraddress = Inetaddress.getbyname (ipnum); Intent Intent = new Intent (Remotecontrolactivity.this,controlactivity.class); RemoteControlActivity.this.startActivity (intent); RemoteControlActivity.this.finish (); Toast.maketext (remotecontrolactivity.this, "connection succeeded", toast.length_short). show (); } catch (Exception E) {//TODO auto-generated catch block E.printstacktrace (); } } }); }}</pre><br>As you can see from the above code, the event source being monitored is a button named Connectbutton (that is, the event source), and the Setonclicklistener method is called to register the event listener object Onclicklistener () to the event Source. The event listener class Onclicklistener () and its method OnClick (View V) are Implemented.<p><p></p></p><p><p>This uses the anonymous inner class as the event listener class<br></p></p> <p style="font-size:12px;"><p style="font-size:12px;">Copyright Notice: This article for Bo Master original article, without Bo Master permission not Reproduced.</p></p> <p><p>Android Event Listener Processing</p></p></span>