Implement page Jumps

Package Com.example.ulikeguanli;
Import Java.util.Timer;
Import Java.util.TimerTask;

Import android.app.Activity;
Import android.content.Intent;
Import Android.os.Bundle;
Import Android.os.Handler;
Import Android.os.Message;
public class Welcomeguanlistart extends Activity {
Delay Jump Using Handler
@Override
protected void OnCreate (Bundle savedinstancestate) {
Super.oncreate (savedinstancestate);
Setcontentview (R.layout.guanli_welcome);
/* New Handler (new Handler.callback () {
Processing the received message
@Override
public boolean handlemessage (Message msg) {
TODO auto-generated Method Stub
StartActivity (New Intent (Getapplicationcontext (), mainactivity.class));
return false;
}
}). sendemptymessagedelayed (0,3000);//delay three second send */
Timer timer=new timer ();
Timer.schedule (New Task (), 3000);
}
Class Task extends timertask{

@Override
public void Run () {
TODO auto-generated Method Stub
StartActivity (New Intent (Welcomeguanlistart.this,mainactivity.class));
}

}
}

<?xml version= "1.0" encoding= "Utf-8"?>
<manifest xmlns:android= "Http://schemas.android.com/apk/res/android"
Package= "Com.example.ulikeguanli"
Android:versioncode= "1"
Android:versionname= "1.0" >

<uses-sdk
Android:minsdkversion= "8"
Android:targetsdkversion= "/>"

<application
Android:allowbackup= "true"
android:icon= "@drawable/tubaio"
Android:label= "@string/app_name"
Android:theme= "@style/apptheme" >
<activity
Android:name= "Com.example.ulikeguanli.WelComeGuanLiStart"
Android:label= "@string/app_name" >
<intent-filter>
<action android:name= "Android.intent.action.MAIN"/>
<category android:name= "Android.intent.category.LAUNCHER"/>
</intent-filter>
</activity>
<activity
Android:name= "Com.example.ulikeguanli.MainActivity" ></activity>
</application>

</manifest>

Implement page Jumps