import android.app.Activity;

import android.content.Context;

import android.content.Intent;

import android.content.pm.PackageInfo;

import android.content.pm.PackageManager;

import android.graphics.drawable.Drawable;

import android.os.Bundle;

import android.view.LayoutInflater;

import android.view.View;

import android.view.ViewGroup;

import android.widget.AdapterView;

import android.widget.BaseAdapter;

import android.widget.GridView;

import android.widget.ImageView;

import android.widget.TextView;

import java.util.ArrayList;

import java.util.List;

public class MainActivity extends Activity {

    List<AppsItemInfo> list;

    private GridView gridview;

    private PackageManager pManager;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        this.setContentView(R.layout.activity_main);

        gridview = (GridView) findViewById(R.id.gridview);

        pManager = MainActivity.this.getPackageManager();

        List<PackageInfo> appList = getAllApps(MainActivity.this);

        list = new ArrayList<AppsItemInfo>();

        for (int i = 0; i < appList.size(); i++) {

            PackageInfo pinfo = appList.get(i);

            AppsItemInfo shareItem = new AppsItemInfo();

            shareItem.setIcon(pManager.getApplicationIcon(pinfo.applicationInfo));

            shareItem.setLabel(pManager.getApplicationLabel(

                    pinfo.applicationInfo).toString());

            shareItem.setPackageName(pinfo.applicationInfo.packageName);

            list.add(shareItem);

        }

        gridview.setAdapter(new baseAdapter());

        gridview.setOnItemClickListener(new ClickListener());

    }

    public static List<PackageInfo> getAllApps(Context context) {

        List<PackageInfo> apps = new ArrayList<PackageInfo>();

        PackageManager pManager = context.getPackageManager();

        List<PackageInfo> packlist = pManager.getInstalledPackages(0);

        for (int i = 0; i < packlist.size(); i++) {

            PackageInfo pak = (PackageInfo) packlist.get(i);

            if ((pak.applicationInfo.flags & pak.applicationInfo.FLAG_SYSTEM) <= 0) {

                apps.add(pak);

            }

        }

        return apps;

    }

    private class baseAdapter extends BaseAdapter {

        LayoutInflater inflater = LayoutInflater.from(MainActivity.this);

        @Override

        public int getCount() {return list.size();}

        @Override

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

        @Override

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

        @Override

        public View getView(int position, View convertView, ViewGroup parent) {

            ViewHolder holder;

            if (convertView == null) {

                convertView = inflater.inflate(R.layout.apps, null);

                holder = new ViewHolder();

                holder.icon = (ImageView) convertView

                        .findViewById(R.id.apps_image);

                holder.label = (TextView) convertView

                        .findViewById(R.id.apps_textview);

                convertView.setTag(holder);

            } else {

                holder = (ViewHolder) convertView.getTag();

            }

            holder.icon.setImageDrawable(list.get(position).getIcon());

            holder.label.setText(list.get(position).getLabel().toString());

            return convertView;

        }

    }

    private class ViewHolder{

        private ImageView icon;

        private TextView label;

    }

    private class ClickListener implements AdapterView.OnItemClickListener {

        @Override

        public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,long arg3) {

            Intent intent = new Intent();

            intent = MainActivity.this.getPackageManager().getLaunchIntentForPackage(list.get(arg2).getPackageName());

            startActivity(intent);

        }

    }

    private class AppsItemInfo {

        private Drawable icon;

        private String label;

        private String packageName;

        public Drawable getIcon() {

            return icon;

        }

        public void setIcon(Drawable icon) {

            this.icon = icon;

        }

        public String getLabel() {

            return label;

        }

        public void setLabel(String label) {

            this.label = label;

        }

        public String getPackageName() {

            return packageName;

        }

        public void setPackageName(String packageName) {

            this.packageName = packageName;

        }

    }

}

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="fill_parent"

    android:layout_height="fill_parent"

    android:orientation="vertical">

    <GridView xmlns:android="http://schemas.android.com/apk/res/android"

        android:id="@+id/gridview"

        android:layout_width="fill_parent"

        android:layout_height="fill_parent"

        android:columnWidth="95dp"

        android:gravity="center"

        android:horizontalSpacing="12dp"

        android:numColumns="auto_fit"

        android:stretchMode="columnWidth"

        android:verticalSpacing="15dp" />

</LinearLayout>  

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:orientation="vertical"

    android:layout_width="fill_parent"

    android:layout_height="fill_parent"

    android:gravity="center" >

    <ImageView

        android:id="@+id/apps_image"

        android:layout_width="48dip"

        android:layout_height="48dip"

        android:icon="@mipmap/ic_launcher" />

    <TextView

        android:id="@+id/apps_textview"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:maxLines="1"

        android:maxEms="5"

        android:text="good" />

</LinearLayout>