Gallery循环播放图片

[android]代码库

package com.example.testandroid;

import java.util.Timer;
import java.util.TimerTask;
import android.app.Activity;
import android.content.Context;
import android.content.res.TypedArray;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.Gallery;
import android.widget.ImageView;

/** * gallery 图片循环播放 * * @author maqf * */
@SuppressWarnings("deprecation")
public class CycleImageActivity extends Activity {
	private int[] picture = { R.drawable.gallery1, R.drawable.gallery2,
			R.drawable.gallery3, R.drawable.gallery4, R.drawable.gallery5,
			R.drawable.gallery6, };
	private Gallery pictureGallery = null;
	private int index = 0;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.second_tiem);
		this.pictureGallery = (Gallery) findViewById(R.id.gallery);
		ImageAdapter adapter = new ImageAdapter(this);
		this.pictureGallery.setAdapter(adapter);
		Timer timer = new Timer();
		timer.schedule(task, 2000, 2000);
	}

	/** * 定时器 */
	private TimerTask task = new TimerTask() {
		@Override
		public void run() {
			Message message = new Message();
			message.what = 2;
			index = pictureGallery.getSelectedItemPosition();
			index++;
			handler.sendMessage(message);
		}
	};
	/** * Handler */
	private Handler handler = new Handler() {
		@Override
		public void handleMessage(Message msg) {
			super.handleMessage(msg);
			switch (msg.what) {
			case 2:
				pictureGallery.setSelection(index);
				break;
			default:
				break;
			}
		}
	};

	/** * 自定义一个图片显示适配器 * * @author TanRuixiang * */
	class ImageAdapter extends BaseAdapter {
		private Context context;

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

		public int getCount() {
			return Integer.MAX_VALUE;
		}

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

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

		public View getView(int position, View convertView, ViewGroup parent) {
			ImageView imageView = new ImageView(context);
			imageView.setImageResource(picture[position % picture.length]);
			imageView.setScaleType(ImageView.ScaleType.FIT_XY);
			imageView.setLayoutParams(new Gallery.LayoutParams(
					Gallery.LayoutParams.FILL_PARENT,
					Gallery.LayoutParams.FILL_PARENT));
			return imageView;
		}
	}
}