学步园

先看效果：

中间切换动画没来得及截图，凑合着看吧。

主要是java代码的实现：

Welcom.java

package kehr.activity.welcome;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
import android.view.Window;
import android.view.WindowManager;

public class Welcome extends Activity {

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		//全屏
		getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
				WindowManager.LayoutParams.FLAG_FULLSCREEN);
		//无标题
		requestWindowFeature(Window.FEATURE_NO_TITLE);
		
		setContentView(R.layout.welcome_layout);
		Handler handler = new Handler();
		//使用pastDelayed方法延时
		handler.postDelayed(new Runnable() {

			@Override
			public void run() {
				Intent intent = new Intent(Welcome.this, Start.class);
				startActivityForResult(intent, 11);
				    		
				//添加界面切换效果
				int version = Integer.valueOf(android.os.Build.VERSION.SDK_INT);
				//只有android2.0（版本号为5）以上的版本支持
				if(version  >= 5) {   
					//自定义动画效果
				   //overridePendingTransition(R.layout.zoom_enter, R.layout.zoom_exit);
				   //系统动画效果
//				   overridePendingTransition(android.R.anim.fade_in,android.R.anim.fade_out);  
				   overridePendingTransition(android.R.anim.slide_in_left,android.R.anim.slide_out_right);
				}  
				//结束欢迎界面
				Welcome.this.finish();

			}
		}, 3000);
	}

}

Start.java

package kehr.activity.welcome;

import android.app.Activity;
import android.os.Bundle;

public class Start extends Activity{
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.start_layout);
		//这里面就可以做其它的设置了，这里只是绑定了一个布局文件
	}

}

两个自定义动画文件：

zoom_enter.xml

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
    android:interpolator="@android:anim/decelerate_interpolator" >

    <scale
        android:duration="@android:integer/config_mediumAnimTime"
        android:fromXScale="2.0"
        android:fromYScale="2.0"
        android:pivotX="50%p"
        android:pivotY="50%p"
        android:toXScale="1.0"
        android:toYScale="1.0" />

</set>

zoom_exit.xml

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
    android:interpolator="@android:anim/decelerate_interpolator"
    android:zAdjustment="top" >

    <scale
        android:duration="@android:integer/config_mediumAnimTime"
        android:fromXScale="1.0"
        android:fromYScale="1.0"
        android:pivotX="50%p"
        android:pivotY="50%p"
        android:toXScale=".5"
        android:toYScale=".5" />

    <alpha
        android:duration="@android:integer/config_mediumAnimTime"
        android:fromAlpha="1.0"
        android:toAlpha="0" />

</set>

关于动画切换的效果参考：http://ipjmc.iteye.com/blog/1279056