package com.hixin.appexplorer;

 import java.util.List;

 import android.app.Activity;

 import android.content.Context;

 import android.content.pm.PackageInfo;

 import android.content.pm.PackageManager;

 import android.os.Bundle;

 import android.view.LayoutInflater;

 import android.view.View;

 import android.view.ViewGroup;

 import android.view.Window;

 import android.view.WindowManager;

 import android.widget.BaseAdapter;

 import android.widget.GridView;

 import android.widget.ImageView;

 import android.widget.TextView;

 public class MainActivity extends Activity {

     GridView gv;

     private List<PackageInfo> packageInfos;

     @Override

     protected void onCreate(Bundle savedInstanceState) {

         super.onCreate(savedInstanceState);

         requestWindowFeature(Window.FEATURE_NO_TITLE);

         getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);

         setContentView(R.layout.show_app_grid);

         init();

         gv=(GridView)this.findViewById(R.id.gv_apps);

         gv.setAdapter(new GridViewAdapter(this));

         }

     private void init(){

         packageInfos = getPackageManager().getInstalledPackages(PackageManager.GET_UNINSTALLED_PACKAGES);

     }

     class GridViewAdapter extends BaseAdapter{

         LayoutInflater inflater;

         public GridViewAdapter(Context context) {

             inflater = LayoutInflater.from(context);

         }

         @Override

         public int getCount() {

             // TODO Auto-generated method stub

             return packageInfos.size();

         }

         @Override

         public Object getItem(int position) {

             // TODO Auto-generated method stub

             return packageInfos.get(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

                 View view = inflater.inflate(R.layout.gv_item, null);

                 TextView tv = (TextView)view.findViewById(R.id.gv_item_appname);

                 ImageView iv = (ImageView)view.findViewById(R.id.gv_item_icon);

                 tv.setText(packageInfos.get(position).packageName);

                 iv.setImageDrawable(packageInfos.get(position).applicationInfo.loadIcon(getPackageManager()));

             return view;

         }

     }

 }