package com.yuyidong.second;

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

public class Splash extends Activity{

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        // TODO 自动生成的方法存根
        super.onCreate(savedInstanceState);
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        setContentView(R.layout.splash);
        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
        new Handler().postDelayed(new Runnable(){   
            // 为了减少代码使用匿名Handler创建一个延时的调用
                        public void run() {   
                            Intent i = new Intent(Splash.this, MainActivity.class);    
                            //通过Intent打开最终真正的主界面Main这个Activity
                            Splash.this.startActivity(i);    //启动Main界面
                            Splash.this.finish();    //关闭自己这个开场屏
                        }   
                    }, 5000);   //5秒
    }

    

}

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >
     <ImageView android:layout_width="wrap_content"
               android:layout_height="wrap_content" android:src="@drawable/ic_launcher"
               android:layout_gravity="center"
               android:contentDescription="Hello"
               />
          <TextView
               android:id="@+id/info"
               android:layout_width="fill_parent"
               android:layout_height="wrap_content"
               android:gravity="center"
               android:text="This is a splash!!"/>
</LinearLayout>

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.yuyidong.second"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="11"
        android:targetSdkVersion="16" />

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
         <activity android:name="Splash">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity
            android:name="com.yuyidong.second.MainActivity"
            android:label="@string/app_name" >            
        </activity>       
    </application>
</manifest>