欢迎界面动画

实现一个欢迎界面的动画，即打开app显示的页面，动画结束后跳到Activity。

1、欢迎界面的背景是一个绿色矩形

2、欢迎界面的布局，整个布局的背景为上面的绿色矩形背景，此外包括两个TextView

3、欢迎界面的动画

是逐渐缩小，淡出的效果，动画持续4000毫秒

4、在WelcomActivity.java中加载页面布局和动画，

public void onAnimationEnd(Animation animation)//在动画结束后跳转到MainActivity

//WelcomActivity.java

package com.sunny.csdnblog;

import android.app.Activity;
import android.os.Bundle;
import android.os.Handler;
import android.view.Window;
import android.view.animation.AnimationUtils;
import android.view.animation.Animation;
import android.view.animation.Animation.AnimationListener;
import android.content.Intent;

import android.view.View;
import android.widget.ImageView;
import android.widget.TextView;
public class WelcomActivity extends Activity{
	
	private Handler mHandler;
	@Override
	protected void onCreate(Bundle savedInstanceState){
		super.onCreate(savedInstanceState);
		requestWindowFeature(Window.FEATURE_NO_TITLE);
		
		setContentView(R.layout.welcom_layout);
		
		mHandler = new Handler();
		//TextView welcomTextView = (TextView)findViewById(R.id.welcomImage);
		//TextView madebyTextView = (TextView)findViewById(R.id.madeby);
		View welcomView = (View)findViewById(R.id.welcom_layout);
		
		Animation animation = AnimationUtils.loadAnimation(this, R.anim.welcom_anim);
		animation.setAnimationListener(new AnimationListener(){

			@Override
			public void onAnimationStart(Animation animation) {
				// TODO Auto-generated method stub
				
			}

			@Override
			public void onAnimationEnd(Animation animation) {
				// TODO Auto-generated method stub
				mHandler.post(new Runnable(){

					@Override
					public void run() {
						// TODO Auto-generated method stub
						Intent intent = new Intent(WelcomActivity.this,MainActivity.class);
						startActivity(intent);
						WelcomActivity.this.finish();
					}
					
				});
			}

			@Override
			public void onAnimationRepeat(Animation animation) {
				// TODO Auto-generated method stub
				
			}
			
		});
		
		welcomView.startAnimation(animation);
		//madebyTextView.startAnimation(animation);
	}

}

5、MainActivity显示一个页面head和一个WebView

public class MainActivity extends FragmentActivity {

	private WebView webView;
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		requestWindowFeature(Window.FEATURE_NO_TITLE);
		setContentView(R.layout.activity_main);
		
		webView = (WebView)findViewById(R.id.webView);
		webView.getSettings().setJavaScriptEnabled(true);
		webView.setWebViewClient(new WebViewClient());
		webView.loadUrl("http://blog.csdn.net/doudoulee_blog");
	｝
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