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   源码介绍

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package com.demo;

import com.nostra13.universalimageloader.core.DisplayImageOptions;
import com.nostra13.universalimageloader.core.ImageLoader;

import android.os.Bundle;
import android.app.Activity;
import android.content.Context;
import android.graphics.Bitmap;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.ListView;

public class ShowMulImg extends Activity {
	private ListView imgsLv;
	private ImageLoader loader;
	private DisplayImageOptions options;
	private String[] arr = new String[] {
			"http://t12.baidu.com/it/u=3892037522,4148855209&fm=59",
			"http://t12.baidu.com/it/u=176596478,1719464859&fm=59",
			"http://t10.baidu.com/it/u=2563391112,3174229346&fm=59",
			"http://t11.baidu.com/it/u=38767480,4056423661&fm=59",
			"http://t12.baidu.com/it/u=2188089986,1772099895&fm=59",
			"http://t10.baidu.com/it/u=4010714787,2970343447&fm=59",
			"http://t11.baidu.com/it/u=2520234337,3270250852&fm=59",
			"http://t10.baidu.com/it/u=2395220391,4053197141&fm=59", };

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);

		loader = ImageLoader.getInstance();
		options = new DisplayImageOptions.Builder()
				.showImageOnLoading(R.drawable.ic_launcher)
				// 正在加载
				.showImageForEmptyUri(R.drawable.ic_launcher)
				// 空图片
				.showImageOnFail(R.drawable.ic_launcher)
				// 错误图片
				.cacheInMemory(true).cacheOnDisk(true).considerExifParams(true)
				.bitmapConfig(Bitmap.Config.RGB_565).build();

		imgsLv = (ListView) findViewById(R.id.lv_imgs);
		InsBaseAdp adp = new InsBaseAdp(this);
		imgsLv.setAdapter(adp);
	}

	class InsBaseAdp extends BaseAdapter {
		private Context context;

		public InsBaseAdp(Context context) {
			this.context = context;
		}

		@Override
		public int getCount() {
			// TODO Auto-generated method stub
			return arr.length;
		}

		@Override
		public Object getItem(int position) {
			// TODO Auto-generated method stub
			return position;
		}

		@Override
		public long getItemId(int position) {
			// TODO Auto-generated method stub
			return position;
		}

		@Override
		public View getView(int position, View convertView, ViewGroup parent) {
			// TODO Auto-generated method stub
			ViewHolder holder;
			if (convertView == null) {
				convertView = LayoutInflater.from(context).inflate(
						R.layout.line_img, null);
				holder = new ViewHolder();
				holder.tuImg = (ImageView) convertView
						.findViewById(R.id.img_tu);
				convertView.setTag(holder);
			} else {
				holder = (ViewHolder) convertView.getTag();
			}

			loader.displayImage(arr[position], holder.tuImg, options);
			return convertView;
		}
	}

	private static class ViewHolder {
		private ImageView tuImg;
	}
}