關於Gallery自動滾動的代碼

<pre name="code" class="java">package lyl.menu;

import lyl.dc.MainActivity;
import lyl.dc.R;
import lyl.diancai.DianCaiActivity;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.Gallery;
import android.widget.TextView;
import android.widget.Gallery.LayoutParams;
import android.widget.GridView;
import android.widget.ImageView;

public class MenuActivity extends Activity {
	Gallery gallery;
	int index =0;
	boolean boo =true;
	TextView text;
	ImageView image1,image2,image3,image4,image5;
	int bitmap [] ={R.drawable.gallery1,R.drawable.gallery2,R.drawable.gallery3,R.drawable.gallery4,
			R.drawable.gallery5,R.drawable.gallery6,R.drawable.erguotou,R.drawable.zicaitang,R.drawable.mifan};
	String st[] ={"水晶蝦仁:188元","糖醋帶魚:388元","魚香肉絲:588元","點心:88元","糖醋排骨:168元","北京烤鴨:888元","洪興二鍋頭:128元","紫菜蛋湯:68元","米飯:10元"};
	Handler handler =new Handler(){
		//通過handler 接受thread線程發來的消息 判斷消息設置gallery顯示的圖片 設置textview的文字
		public void handleMessage(Message msg) {
			if(msg.what==index){
					int a =index%bitmap.length;
					int b =index%st.length;
					System.out.println(a+"//////////////////");
					System.out.println(bitmap[a]+"//////");

					gallery.setSelection(a);
					text.setText(st[b]);
			}
		}
	};
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		// TODO Auto-generated method stub
		super.onCreate(savedInstanceState);
		setContentView(R.layout.menu);
		text=(TextView)findViewById(R.id.menu_text1);
		image1=(ImageView)findViewById(R.id.menu_diancai);
		image2=(ImageView)findViewById(R.id.menu_jiesuan);
		image3=(ImageView)findViewById(R.id.menu_dingdan);
		image4=(ImageView)findViewById(R.id.menu_jiadan);
		image5=(ImageView)findViewById(R.id.menu_gengduo);
		gallery=(Gallery)findViewById(R.id.menu_gallery);
		gallery.setAdapter(new ImageAdapter(MenuActivity.this));
		//新建一個線程 每隔2秒給handler發送消息
		new Thread(new Runnable() {
			
			@Override
			public void run() {
				// TODO Auto-generated method stub
				while(boo){
					handler.sendEmptyMessage(index);
		             try {  
	                        Thread.sleep(2000);  
	                    } catch (InterruptedException e) {  
	                        // TODO Auto-generated catch block  
	                        e.printStackTrace();  
	                    }

		             index++;
		             
				}
			}
		}).start();
		image1.setOnClickListener(new OnClickListener() {
			
			@Override
			public void onClick(View v) {
				// TODO Auto-generated method stub
				startActivity(new Intent(MenuActivity.this,DianCaiActivity.class));
			}
		});
	}
	//自定義適配器
	class ImageAdapter extends BaseAdapter{
		
		Context context;
		public ImageAdapter(Context context){
			this.context=context;
		}
		@Override
		public int getCount() {
			// TODO Auto-generated method stub
			return bitmap.length;
		}

		@Override
		public Object getItem(int position) {
			// TODO Auto-generated method stub
			return bitmap[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
			ImageView image =new ImageView(context);
			image.setLayoutParams(new Gallery.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));
			image.setImageResource(bitmap[position]);
			
			return image;
		}
		
	}
	//捕獲系統返回鍵
	@Override
	public boolean onKeyDown(int keyCode, KeyEvent event) {
		// TODO Auto-generated method stub
		if(keyCode==KeyEvent.KEYCODE_BACK){
			boo=false;
			AlertDialog.Builder dialog =new AlertDialog.Builder(MenuActivity.this);
			dialog.setTitle("退出程序?");
			dialog.setIcon(R.drawable.icon);
			dialog.setPositiveButton("確定", new DialogInterface.OnClickListener() {
				
				@Override
				public void onClick(DialogInterface dialog, int which) {
					// TODO Auto-generated method stub
					finish();
				}
			});
			dialog.setNegativeButton("取消", new DialogInterface.OnClickListener() {
				
				@Override
				public void onClick(DialogInterface dialog, int which) {
					// TODO Auto-generated method stub
					dialog.dismiss();
				}
			});
		}
		return super.onKeyDown(keyCode, event);
	}
	@Override
	protected void onStart() {
		// TODO Auto-generated method stub
		boo=true;
		super.onStart();
	}
}

最近在學習上做了一個小小的點菜項目 

關於gallery自動滾動無線循環 我的代碼跟網上的差不多 上面是代碼