android欢迎界面的编程实现[手相评分-软件实例]

首先，我们可以先看一下“手相评分”这款软件的启动画面。如下：

其实，做欢迎界面的原理非常简单，就是在onCreate函数中启动一个线程，线程体在睡眠几秒钟之后，跳转
到MainActivity即可。具体实现代码如下：
WelcomeActivity.java

import android.app.Activity;import android.content.Intent;import android.os.Bundle;import android.os.Handler;import android.os.Message;import android.view.Window;import android.view.WindowManager;/* *@author: ZhengHaibo   *web:     http://blog.csdn.net/nuptboyzhb *mail:    zhb931706659@126.com *2013-3-25  Nanjing,njupt,China */public class WelcomeActivity extends Activity {private static final int GOTO_MAIN_ACTIVITY = 0;@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);// 设置无标题requestWindowFeature(Window.FEATURE_NO_TITLE);// 设置全屏getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,WindowManager.LayoutParams.FLAG_FULLSCREEN);setContentView(R.layout.activity_welcome);MyTimer timer = new MyTimer();timer.start();//启动线程}Handler mHandler = new Handler() {public void handleMessage(Message msg) {switch (msg.what) {case GOTO_MAIN_ACTIVITY:Intent intent = new Intent();intent.setClass(WelcomeActivity.this, SystemMain.class);startActivity(intent);finish();break;default:break;}};};public class MyTimer extends Thread {public MyTimer() {// TODO Auto-generated constructor stub}@Overridepublic void run() {// TODO Auto-generated method stubtry {Thread.sleep(3000);// 线程暂停时间，单位毫秒mHandler.sendEmptyMessage(GOTO_MAIN_ACTIVITY);} catch (InterruptedException e) {// TODO Auto-generated catch blocke.printStackTrace();}}}}

布局代码activity_welcome.xml

<?xml version="1.0" encoding="utf-8"?><LinearLayoutandroid:layout_width="fill_parent"android:layout_height="fill_parent"android:orientation="horizontal"android:background="@drawable/welcome"xmlns:android="http://schemas.android.com/apk/res/android"></LinearLayout>

对了，广告一下，手相评分即是本人开发，多谢大家支持！以后会写该软件图像处理方面的实现方法，敬请期待！

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