Android send a verification code countdown button

<span id="Label3"></p><p><p>1 Direct</p></p><p><p><br></p></p><p><p>2 principle</p></p><p><p>The simple principle is to encapsulate the corresponding countdown logic into a control and provide an interface to the Outside.</p></p><p><p>3 Code</p></p><p><p></p></p><pre name="code" class="java">Import Java.util.timer;import java.util.timertask;import Android.content.context;import Android.os.Handler;import Android.os.message;import Android.util.attributeset;import Android.view.layoutinflater;import android.view.View; Import android.widget.framelayout;/** * Custom controls to achieve the countdown Function. * * @author Admin * */public class Daojishi extends framelayout {private static final int jishi = 0x000;private smartbut Ton9 daojishi;private Handler handler;private Timer timer;private int alltime = 50;private Daojishicallback daojishicallb Ack;public Daojishi (context context, attributeset attrs, int defstyle) {super (context, attrs, Defstyle);//TODO auto-gene Rated constructor Stublayoutinflater inflater = (layoutinflater) Context.getsystemservice (context.layout_inflater_ SERVICE); inflater.inflate (r.layout.daojishi, this); initview (); inithandler (); initlisterner ();} Public Daojishi (context context, attributeset attrs) {super (context, Attrs);//TODO auto-generated Constructor Stublayoutinflater Inflater = (LayoutInflater) context.getsystemservice (context.layout_inflater_service); inflater.inflate (R.layout.daojishi, this); Initview (); inithandler (); initlisterner ();} Public Daojishi (context Context) {super (context);//TODO auto-generated constructor Stublayoutinflater inflater = ( Layoutinflater) context.getsystemservice (context.layout_inflater_service); inflater.inflate (R.layout.daojishi, this); initview (); inithandler (); initlisterner ();} public void Initview () {daojishi = (SmartButton9) Findviewbyid (r.id.daojishi_btn);} public void Initlisterner () {daojishi.setmyonclick (new onclicklistener () {@Overridepublic void OnClick (View v) {//TODO A Uto-generated method Stubif (daojishicallback! = Null) {if (daojishicallback. Start ()) {//mobile Number Verification passed, then continue the following Operation. } else {//mobile number verification failed, directly returned, do not perform the following Operation. return;}} Else {//callback interface is empty, there is a problem, return directly, do not perform the following Operation. return;} Daojishi.setclickable (false);//a Timer Timer is created when the button is pressed, timer = new Timer ();//create A timertask//timertask is an abstract class that implements the Runnable interface , so TimerTask is a child thread timertask timertask = new TimerTask () {Countdown alltime seconds, Default 50 seconds. int i = alltime; @Overridepublic void run () {//log.d ("debug", "thread on which the Run method is located:"//+ thread.currentthread (). getName ());//define A Message passed msg = new message (); Msg.what = i--;handler.sendmessage (msg); if (i < 0) {cancel ();}}};/ /define scheduled tasks, Depending on the parameters, you can do the following kinds of work://1. Schedule (timertask task, Date when) ー> perform a task at a fixed time//2. Schedule (timertask task, Date when, LONG//PERIOD) ー> repeats a task at a fixed time, and the repeat interval is controlled//3. Schedule (timertask task, Long Delay) ー> performs a task after a delay//4. Schedule (timertask task, Long delay, LONG//PERIOD) ー> repeatedly perform a task after a delay, the repetition interval controllable timer.schedule (timertask, 1, 1000);// 3 seconds to start countdown, countdown interval of 1 seconds}});} public void Inithandler () {handler = new handler () {@Overridepublic void handlemessage (Message msg) {//TODO auto-generate D method Stubsuper.handlemessage (msg);d Aojishi.settext (msg.what + "re-fetch after second"), if (daojishicallback! = null) { Daojishicallback.numchanged (msg.what);} if (msg.what = = 0) {daojishi.settext ("get authenticode");d aojishi.setclickable (true); If (daojishicallback! = null) { Daojishicallback. End();}}}};} public void Stop () {timer.cancel ();d aojishi.settext ("get authenticode");d aojishi.setclickable (true);} public void start () {daojishi.performclick ();} public void Setdaojishicallback (daojishicallback daojishicallback) {this.daojishicallback = daojishicallback;} public void Setalltime (int Alltime) {this.alltime = alltime;} /** * Countdown Control Callback interface for external Code. * * @author Admin * */public interface daojishicallback {/** * Click the button and then call the method before starting the Timer. * * @return returns True to start timing, false to exit Timing. */public Boolean Start ();/** * is Over. */public void End ();/** * number has Changed. * * @param num * @return */public void numchanged (int num);}}</pre>4 Engineering Downloads<p><p></p></p><p><p>http://download.csdn.net/detail/zhounanzhaode/8986391<br><br></p></p> <p style="font-size:12px;"><p style="font-size:12px;">Copyright Notice: This article for Bo Master original or translated articles, without Bo Master permission not Reproduced.</p></p> <p><p>Android send a verification code countdown button</p></p></span>