Android图片之滑动效果(Gallery)

package wei.ye.g1;

import android.app.Activity;

import android.content.Context;

import android.os.Bundle;

import android.view.View;

import android.view.ViewGroup;

import android.view.ViewGroup.LayoutParams;

import android.widget.BaseAdapter;

import android.widget.Gallery;

import android.widget.ImageView;

public class Huadong extends Activity {

private static int[] images = { R.drawable.baos, R.drawable.caoc,

R.drawable.chenyj, R.drawable.chenyy, R.drawable.gouj,

R.drawable.guany, R.drawable.hanx, R.drawable.lp, R.drawable.liub,

R.drawable.qinq, R.drawable.tiemz, R.drawable.wus,

R.drawable.xiangy, R.drawable.yuef, R.drawable.zhaoky,

R.drawable.zhugl, R.drawable.xis, R.drawable.yingz };

Gallery gallery;

@Override

protected void onCreate(Bundle savedInstanceState) {

// TODO Auto-generated method stub

super.onCreate(savedInstanceState);

setContentView(R.layout.huadong);

setTitle("只用了Gallery的效果");

gallery = (Gallery) findViewById(R.id.gallery1);

gallery.setAdapter(new ImageAdapter(this));

gallery.setSelection(images.length / 2);

}

private class ImageAdapter extends BaseAdapter {

private Context context;

public ImageAdapter(Context context) {

this.context = context;

}

// 可以return images.lenght(),在这里返回Integer.MAX_VALUE

// 是为了使图片循环显示

public int getCount() {

return Integer.MAX_VALUE;

}

public Object getItem(int position) {

return null;

}

public long getItemId(int position) {

return 0;

}

public View getView(int position, View convertView, ViewGroup parent) {

ImageView iv = new ImageView(context);

//设置具体要显示的图片

iv.setImageResource(images[position % images.length]);

//设置ImageView的高度和宽度

iv.setLayoutParams(new Gallery.LayoutParams(

LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT));

iv.setAdjustViewBounds(true);

return iv;

}

}

}

<?xml version="1.0" encoding="utf-8"?>

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"

android:orientation="vertical" android:layout_width="match_parent"

android:layout_height="match_parent">

<Gallery android:layout_width="fill_parent" android:id="@+id/gallery1"

android:layout_height="fill_parent" android:spacing="16dp"></Gallery>

</RelativeLayout>