为源程序添加splash

很多android程序启动的时候会首先显示一个封面也就是splash，实现这个的方法很多种，在此介绍一简单方法，将splash作为单独一窗口。
MainActivity.java
[java]
package com.example.splash;

import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;

public class MainActivity extends Activity {

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.splash, menu);
return true;
}

}
[/java]
Splash.java
[java]
package com.example.splash;

import android.os.Bundle;
import android.os.Handler;
import android.app.Activity;
import android.content.Intent;
import android.view.Menu;

public class Splash extends Activity {
private final int SPLASH_DISPLAY_LENGHT = 2000;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_splash);

new Handler().postDelayed(new Runnable() {

@Override
public void run() {
// TODO Auto-generated method stub
Intent mainIntant = new Intent(Splash.this,MainActivity.class);
Splash.this.startActivity(mainIntant);
Splash.this.finish();

}
}, SPLASH_DISPLAY_LENGHT);
}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.splash, menu);
return true;
}

}
[/java]
[xml]
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.splash"
android:versionCode="1"
android:versionName="1.0" >

<uses-sdk
android:minSdkVersion="11"
android:targetSdkVersion="18" />

</manifest>
[/xml]
完整项目文件
http://pan.baidu.com/s/1eQmTiKE