The chronometer of Android control development

CHRONOMETR is a simple timer, you can give it a start time, and take this timing, or if you don't give it a start time,

It will start with your time call. By default it will display the "minutes: Seconds" or "Mm:ss" in the current timer's worthwhile form,

Or you can use the set (string) timer value to an arbitrary string

Important attributes

Android:format defines the time format such as: HH:MM:SS

Important method

SetBase (long Base)//Set countdown timer setformat (String format)//Set display time format start ()//Start timer stop () Stop Timer//Call Setonchronometerticklistener when the timer changes (chronometer.onchronometerticklistene R Listener)

Routine Main.xml source code

<linearlayout xmlns:android= "Http://schemas.android.com/apk/res/android"         android:orientation= "vertical"       android:layout_width= "wrap_ Content "       android:layout_height=" Wrap_content ">     <chronometer      android:id= "@+id/chronometer"         android:layout_width= "Wrap_content"       android:layout_height = "Wrap_content"/>        <linearlayout            android:layout_width= "Wrap_content"             android:layout_height= "Wrap_content" >                 <Button                android:onclick= "OnStart"                 android:text= "Start timing"                 android:layout_width= "Wrap_content"                 android:layout_height= "Wrap_content"/>                      <button               android:o nclick= "OnStop"                 android:text= "Stop Timing"                 Android:layout_width= "Wrap_content"                 android:layout_height= "Wrap_content"/>                     <Button                android:onclick= "OnReset"                 android:text= "Reset"                 android:layout_width= "Wrap_content"                 android:layout_height= "Wrap_content"/>          </LinearLayout>  </LinearLayout>

java source

Package com.sx.chronometer;    import android.app.activity;  import  android.os.Bundle;  import android.os.SystemClock;  import  Android.view.view;  import android.widget.chronometer;    public class  ChronometerActivity extends Activity   {       private chronometer chronometer = null;             /** called when the activity is first created.  */       @Override       public void  oncreate (bundle savedinstancestate)       {           super.oncreate (savedinstancestate);           setcontentview (r.layout.maIN);                     chronometer =  (chronometer)  findviewbyid (r.id.chronometer);           chronometer.setformat ("Timing:%s");       }             public void onstart (View  view)        {            chronometer.start ();      }             public void onstop (View view)         {           chronometer.stop ();       }            public  Void onreset (View&nbsP;view)       {            Chronometer.setbase (Systemclock.elapsedrealtime ());       }  }

The chronometer of Android control development