/** * 应用程序启动类：显示欢迎界面并跳转到主界面 * <a href="http://my.oschina.net/arthor" target="_blank" rel="nofollow">@author</a> liux (http://my.oschina.net/liux) * @version 1.0 * @created 2012-3-21 */public class AppStart extends Activity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); final View view = View.inflate(this, R.layout.start, null); setContentView(view); //渐变展示启动屏 AlphaAnimation aa = new AlphaAnimation(0.3f,1.0f); aa.setDuration(2000); view.startAnimation(aa); aa.setAnimationListener(new AnimationListener() { @Override public void onAnimationEnd(Animation arg0) { redirectTo(); } @Override public void onAnimationRepeat(Animation animation) {} @Override public void onAnimationStart(Animation animation) {} }); //兼容低版本cookie（1.5版本以下，包括1.5.0,1.5.1） AppContext appContext = (AppContext)getApplication(); String cookie = appContext.getProperty("cookie"); if(StringUtils.isEmpty(cookie)) { String cookie_name = appContext.getProperty("cookie_name"); String cookie_value = appContext.getProperty("cookie_value"); if(!StringUtils.isEmpty(cookie_name) && !StringUtils.isEmpty(cookie_value)) { cookie = cookie_name + "=" + cookie_value; appContext.setProperty("cookie", cookie); appContext.removeProperty("cookie_domain","cookie_name","cookie_value","cookie_version","cookie_path"); } } } /** * 跳转到... */ private void redirectTo(){ Intent intent = new Intent(this, Main.class); startActivity(intent); finish(); }原文：http://www.cnblogs.com/airry66/p/3966620.html