/**
 * 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();
    }