viewFlow实现类似淘宝的自动播放

 

ImageAdapter.java

/*
 * Copyright (C) 2011 Patrik �kerfeldt
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.viewflowtest.cjy;

import java.util.List;

import android.content.Context;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.Toast;

import com.nostra13.universalimageloader.core.DisplayImageOptions;
import com.nostra13.universalimageloader.core.ImageLoader;
import com.nostra13.universalimageloader.core.display.RoundedBitmapDisplayer;
import com.yooeee.ziyoutong.R;

public class ImageAdapter extends BaseAdapter {
//	private DisplayImageOptions options;
	protected ImageLoader imageLoader;
	private Context mContext;
	private List<String> list;
	private LayoutInflater mInflater;

	public ImageAdapter(Context context,List<String> list) {
		mContext = context;
		this.list = list;
		imageLoader = imageLoader.getInstance();
//		options = new DisplayImageOptions.Builder().showStubImage(R.drawable.ic_launcher).showImageForEmptyUri(R.drawable.ic_launcher).showImageOnFail(R.drawable.ic_launcher).cacheInMemory().cacheOnDisc().displayer(new RoundedBitmapDisplayer(15)).build();
		mInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
	}

	@Override
	public int getCount() {
		return Integer.MAX_VALUE;   //返回很大的值使得getView中的position不断增大来实现循环
	}

	@Override
	public Object getItem(int position) {
		return position;
	}

	@Override
	public long getItemId(int position) {
		return position;
	}

	@Override
	public View getView(final int position, View convertView, ViewGroup parent) {
		if (convertView == null) {
			convertView = mInflater.inflate(R.layout.image_item, null);
		}
		ImageView imageView = ((ImageView) convertView.findViewById(R.id.imgView));
		imageLoader.displayImage(list.get(position%list.size()), imageView);
		convertView.setOnClickListener(new OnClickListener() {
			@Override
			public void onClick(View v) {
				Toast.makeText(mContext, "" + position, Toast.LENGTH_SHORT).show();
//				Intent intent = new Intent(mContext,ABSclass.class);
				Bundle bundle = new Bundle();
				bundle.putString("image_id", list.get(position%list.size()));
//				intent.putExtras(bundle);
//				mContext.startActivity(intent);
			}
		});
		return convertView;
	}

}

 
application中

@Override
	public void onCreate() {
		// 初始化下载图片jar包
		initImageLoader(getApplicationContext());
	}

	public static void initImageLoader(Context context)
	{
		ImageLoaderConfiguration config = new ImageLoaderConfiguration.Builder(context).threadPriority(Thread.NORM_PRIORITY - 2).denyCacheImageMultipleSizesInMemory().discCacheFileNameGenerator(new Md5FileNameGenerator()).tasksProcessingOrder(QueueProcessingType.LIFO).enableLogging().build();

		ImageLoader.getInstance().init(config);
	}

 在你用的activity中加入

  viewFlow = (ViewFlow)findViewById(R.id.viewflow);
        viewFlow.setAdapter(new ImageAdapter(this));
        viewFlow.setmSideBuffer(3); // 实际图片张数， 我的ImageAdapter实际图片张数为3
        
        CircleFlowIndicator indic = (CircleFlowIndicator) findViewById(R.id.viewflowindic);
        viewFlow.setFlowIndicator(indic);
        viewFlow.setTimeSpan(4500);
        viewFlow.setSelection(3*1000);	//设置初始位置
        viewFlow.startAutoFlowTimer();  //启动自动播放

 
传个源码和网络获取图片的jar包