android 自带的动画，实现左右切屏效果

下面是核心代码

package com.test.fidout;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;


public class FadOutDemo extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
new Handler().postDelayed(new Runnable() {
@Override
public void run() {
Intent mainIntent = new Intent(FadOutDemo.this, Demoactivity2.class);
FadOutDemo.this.startActivity(mainIntent);
FadOutDemo.this.finish();
overridePendingTransition(android.R.anim.slide_in_left,android.R.anim.slide_out_right);
}
}, 3000);
}
}