android软件开发小程序VIP

1、package com.bupt3g.gallery.view;import android.app.Activity;import android.os.Bundle;import android.view.View;import android.widget.AdapterView;import android.widget.AdapterView.OnItemClickListener;import android.widget.AdapterView.OnItemSelectedListener;import android.widget.Gallery;import android.

2、widget.LinearLayout;public class Android_X013_GalleryActivity extends Activity private Gallery gallery;private MyGalleryAdapter myGalleryAdapter;private int imageIds = R.drawable.main_001, R.drawable.main_002,R.drawable.main_003, R.drawable.main_004, R.drawable.main_005,R.drawable.main_006 ;private

3、LinearLayout layout;private UiItem uiItem;Overridepublic void onCreate(Bundle savedInstanceState) super.onCreate(savedInstanceState);setContentView(R.layout.main);gallery=(Gallery)findViewById(R.id.myGallery);layout=(LinearLayout)findViewById(R.id.linearLayout);myGalleryAdapter=new MyGalleryAdapter(

4、this, imageIds);gallery.setAdapter(myGalleryAdapter);/设置初始位置gallery.setSelection(1);/构建提示点uiItem=new UiItem(this,layout, imageIds.length);uiItem.onCreateItem();uiItem.setItem(1);/设置Gallery中项的间距gallery.setSpacing(100);/设置监听gallery.setOnItemClickListener(new OnItemClickListener() public void onItemCli

5、ck(AdapterView<?> arg0, View arg1, int arg2,long arg3) / TODO Auto-generated method stubSystem.out.println("setOnItemClickListener:"+arg2););/监听当前显示的位置gallery.setOnItemSelectedListener(new OnItemSelectedListener() public void onItemSelected(AdapterView<?> arg0, View arg1,int ar

6、g2, long arg3) uiItem.setItem(arg2);System.out.println("setOnItemSelectedListener:"+arg2);public void onNothingSelected(AdapterView<?> arg0) / TODO Auto-generated method stub);package com.bupt3g.gallery.view;import android.content.Context;import android.view.View;import android.view.

7、ViewGroup;import android.widget.BaseAdapter;import android.widget.Gallery;import android.widget.ImageView;/* * * author Administrator *自定义适配器 */public class MyGalleryAdapter extends BaseAdapter / 显示图片数据集private int imageId;/ 上下文private Context context;/ 布局参数private Gallery.LayoutParams layoutParams;

8、public MyGalleryAdapter(Context context, int imageId) /参数传递this.imageId = imageId;this.context = context;layoutParams = new Gallery.LayoutParams(150, 150);/实现BaseAdaper的方法：要适配的总行数public int getCount() / TODO Auto-generated method stubreturn imageId.length;/实现BaseAdaper的方法：获取position的数据public Integer

9、 getItem(int position) / TODO Auto-generated method stubreturn imageIdposition;/实现BaseAdaper的方法：设置position行的Idpublic long getItemId(int position) / TODO Auto-generated method stubreturn position;/实现BaseAdaper的方法：返回position行要显示的Viewpublic View getView(int position, View convertView, ViewGroup parent)

10、 /定义一个ImageView组件ImageView imageView = new ImageView(context);/设置它的布局参数imageView.setLayoutParams(layoutParams);/设置它的图片imageView.setImageResource(getItem(position);/返回组件return imageView;package com.bupt3g.gallery.view;import java.util.ArrayList;import java.util.List;import android.content.Context;imp

11、ort android.view.ViewGroup.LayoutParams;import android.widget.ImageView;import android.widget.LinearLayout;public class UiItem /显示的位置private LinearLayout layout;/显示的数量private int num;/上下文private Context context;private List<ImageView> imageViews;public UiItem(Context context,LinearLayout layou

12、t,int num) this.context=context;this.layout=layout;this.num=num;/* * 构建点 */public void onCreateItem()ImageView imageView;imageViews=new ArrayList<ImageView>();for (int i = 0; i < num; i+) imageView=new ImageView(context);imageView.setImageResource(R.drawable.ui_item_02);imageView.setPadding(2, 2, 2, 2);imageView.setLayoutParams(new LayoutParams(15, 15);imageViews.add(imageView);layout.addView(imageView);/* * 改变点的状态 */public void se