首先上实现效果图，不会做动态图，就先凑合着看吧

 

使用了网上的一个开源控件viewpagerindicator,可以自定义切换时候显示的标记，圆点，或者下划线。

 

GrildView显示的是手机上的全部app，根据计算好的每页显示的数量来动态添加adapter.

public void initViews() {        final PackageManager packageManager = getPackageManager();        final Intent mainIntent = new Intent(Intent.ACTION_MAIN, null);        mainIntent.addCategory(Intent.CATEGORY_LAUNCHER);        // get all apps         final List
     
       apps = packageManager.queryIntentActivities(mainIntent, 0);        // the total pages        final int PageCount = (int)Math.ceil(apps.size()/APP_PAGE_SIZE);        array = new ArrayList
      
       ();        for (int i=0; i
      
     

下方显示的切换标记其实两行代码就可以搞定了。

mIndicator = (LinePageIndicator)findViewById(R.id.indicator);mIndicator.setViewPager(viewPager);

然后布局文件中要引用这个自定义View

ViewPage滑动Adapter,这个里面可以自定义需求，比如说，你要实现一个可以无限循环滑动的view,那么你可以把最大数量设为500或者1000更大的然后需要处理好异常，addview跟removeview

package cn.example.adapter;import java.util.List;import com.viewpagerindicator.IconPagerAdapter;import android.content.Context;import android.support.v4.view.PagerAdapter;import android.support.v4.view.ViewPager;import android.view.View;import android.widget.GridView;public class MyViewPagerAdapter extends PagerAdapter implements        IconPagerAdapter {    private List
     
       array;    /**     * 供外部调用（new）的方法     *      * @param context     *            上下文     * @param imageViews     *            添加的序列对象     */    public MyViewPagerAdapter(Context context, List
      
        array) {        this.array = array;    }    @Override    public int getCount() {        // TODO Auto-generated method stub        return array.size();    }    @Override    public boolean isViewFromObject(View arg0, Object arg1) {        // TODO Auto-generated method stub        return arg0 == arg1;    }    @Override    public Object instantiateItem(View arg0, int arg1) {        View view = array.get(arg1);        ((ViewPager) arg0).addView(array.get(arg1));        return view;    }    @Override    public void destroyItem(View arg0, int arg1, Object arg2) {        ((ViewPager) arg0).removeView((View) arg2);    }    @Override    public int getIconResId(int index) {        // TODO Auto-generated method stub        return 0;    }}
      
     

实现GrildView点击事件

package cn.example.adapter;import java.util.ArrayList;import java.util.List;import cn.example.activity.R;import android.content.Context;import android.content.pm.PackageManager;import android.content.pm.ResolveInfo;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.TextView;import android.widget.Toast;public class AppAdapter extends BaseAdapter {    private List
     
       mList;// 定义一个list对象    private Context mContext;// 上下文    public static final int APP_PAGE_SIZE = 8;// 每一页装载数据的大小    private PackageManager pm;// 定义一个PackageManager对象    /**     * 构造方法     *      * @param context     *            上下文     * @param list     *            所有APP的集合     * @param page     *            当前页     */    public AppAdapter(Context context, List
      
        list, int page) {        mContext = context;        pm = context.getPackageManager();        mList = new ArrayList
       
        ();        // 根据当前页计算装载的应用，每页只装载8个        int i = page * APP_PAGE_SIZE;// 当前页的其实位置        int iEnd = i + APP_PAGE_SIZE;// 所有数据的结束位置        while ((i < list.size()) && (i < iEnd)) {            mList.add(list.get(i));            i++;        }    }    public int getCount() {        // TODO Auto-generated method stub        return mList.size();    }    public Object getItem(int position) {        // TODO Auto-generated method stub        return mList.get(position);    }    public long getItemId(int position) {        // TODO Auto-generated method stub        return position;    }    public View getView(int position, View convertView, ViewGroup parent) {        if (convertView == null) {            convertView = LayoutInflater.from(mContext).inflate(                    R.layout.app_item, parent, false);        }        final ResolveInfo appInfo = mList.get(position);        ImageView appicon = (ImageView) convertView                .findViewById(R.id.ivAppIcon);        final TextView appname = (TextView) convertView                .findViewById(R.id.tvAppName);        appicon.setImageDrawable(appInfo.loadIcon(pm));        appname.setText(appInfo.loadLabel(pm));        convertView.setOnClickListener(new OnClickListener() {            @Override            public void onClick(View v) {                // TODO Auto-generated method stub                Toast.makeText(mContext, "点击了" + appInfo.loadLabel(pm),                        Toast.LENGTH_SHORT).show();            }        });        return convertView;    }}
       
      
     

 

稍后贴出下载连接,CSDN上传出现问题，有需要的可以留邮箱给我。