ImageAdapter.java

package com.yarin.android.Examples_04_17;

import android.content.Context;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.Gallery;
import android.widget.ImageView;

public class ImageAdapter extends BaseAdapter {
	// ����Context
	private Context mContext;
	// ������������ ��ͼƬԴ
	private Integer[] mImageIds = { R.drawable.img1, R.drawable.img2,
			R.drawable.img3, R.drawable.img4, R.drawable.img5, R.drawable.img6,
			R.drawable.img7, R.drawable.img8, };

	// ���� ImageAdapter
	public ImageAdapter(Context c) {
		mContext = c;
	}

	// ��ȡͼƬ�ĸ���
	public int getCount() {
		return mImageIds.length;
	}

	// ��ȡͼƬ�ڿ��е�λ��
	public Object getItem(int position) {
		return position;
	}

	// ��ȡͼƬID
	public long getItemId(int position) {
		return position;
	}

	public View getView(int position, View convertView, ViewGroup parent) {
		ImageView imageview = new ImageView(mContext);

		// ��ImageView������Դ
		imageview.setImageResource(mImageIds[position]);
		// ���ò��� ͼƬ120��120��ʾ
		imageview.setLayoutParams(new Gallery.LayoutParams(120, 120));
		// ������ʾ��������
		imageview.setScaleType(ImageView.ScaleType.FIT_CENTER);
		return imageview;
	}
}