Android应用的启动界面

/**

 * @(#)Start.java

 * 

 * Copyright XXX.All rights reserved.

 * This software is the XXX system. 

 *

 * @Version: XXX

 * @JDK: jdk 1.6.0.XXX

 * @Module: Statefeedback

 */ 

 /*- 		History

 **********************************************

 *  ID      DATE           PERSON       REASON

 *  1     2011-10-25    WuChaoWen    Created

 **********************************************

 */



package com.cnjmwl.scm;











import android.app.Activity;

import android.content.Intent;

import android.os.Bundle;

import android.os.Handler;

import android.view.animation.AlphaAnimation;

import android.widget.ImageView;



/**

 * Class description goes here.

 *

 * @author WuChaoWen

 * @since 2011-10-25

 */

public class Start extends Activity {

	private ImageView splashImgView = null;

	private int onShowTime = 2000;

	private Class<?> nextUI = LoginActivity.class;

	

	@Override

	protected void onCreate(Bundle savedInstanceState) {

		

		super.onCreate(savedInstanceState);

		setContentView(R.layout.splash);

        splashImgView =(ImageView)findViewById(R.id.splashImageView);

	}

	

	

	@Override

	protected void onStart() {

		super.onStart();

		int sIndex = 0;

		showImg(0.2f,R.drawable.logo,300);

		//showImg(0.5f,R.drawable.lurencun_logo_320dpi,onShowTime * ++sIndex);

		showImg(0.2f,R.drawable.splash,onShowTime * ++sIndex);

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

			@Override

			public void run() {

				startActivity(new Intent(Start.this,nextUI));

				Start.this.finish();

			}

		}, onShowTime * ++sIndex);

		

	}

	

	

	private void showImg(final float startAlpha,final int drawableId,int delay){

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

			@Override

			public void run() {

				splashImgView.setImageResource(drawableId);

				AlphaAnimation animation = new AlphaAnimation(startAlpha, 1.0f);

				animation.setDuration(1000);

				splashImgView.startAnimation(animation);

			}

		},delay);

	}

}