Get List of System Apps with icon, title, package name programmatically

In this tutorial we will learn how to get System Apps in ListView with icon, title, package name. For this purpose we will use custom ListView.
✓ Display User System Apps in ListView with icon, title, package
✓ Display total number of User Installed apps
✓ Handle On click(Display dialog to open app or open app info)

Step 1: Create a new project OR Open your project

Step 2: Create a new "Layout Resource File" in res>layout and name it as "installed_app_list.xml"

Step 2: Code

installed_app_list.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical"
    android:padding="3dp">
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:padding="5dp">
        <ImageView
            android:id="@+id/app_icon"
            android:layout_width="48dp"
            android:layout_height="48dp"/>
        <LinearLayout
            android:layout_marginLeft="3dp"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="vertical"
            android:layout_marginStart="3dp">
            <TextView
                android:id="@+id/list_app_name"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:textStyle="bold"
                android:textSize="16dp"
                android:text="App Name"/>
            <TextView
                android:id="@+id/app_package"
                android:text="App Package Name"
                android:layout_width="match_parent"
                android:layout_height="wrap_content" />
        </LinearLayout>
    </LinearLayout>


</LinearLayout>

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context=".MainActivity">

    <TextView
        android:id="@+id/countApps"
        android:text="Count: "
        android:padding="5dp"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />
    <ListView
        android:id="@+id/system_app_list"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />

</LinearLayout>

MainActivity.java

package com.blogspot.devofandroid.myapplication;

import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.graphics.drawable.Drawable;
import android.net.Uri;
import android.os.Bundle;
import android.support.v7.app.AlertDialog;
import android.support.v7.app.AppCompatActivity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;
import java.util.ArrayList;
import java.util.List;

public class MainActivity extends AppCompatActivity {

    private List<AppList> systemAppsList;
    private AppAdapter systemAppAdapter;
    ListView systemApsLv;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        systemApsLv = (ListView) findViewById(R.id.system_app_list);

        systemAppsList = getSystemApps();
        systemAppAdapter = new AppAdapter(MainActivity.this, systemAppsList);
        systemApsLv.setAdapter(systemAppAdapter);
        systemApsLv.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> adapterView, View view, final int i, long l) {

                String[] colors = {" Open App", " App Info"};
                AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
                builder.setTitle("Choose Action")
                        .setItems(colors, new DialogInterface.OnClickListener() {
                            public void onClick(DialogInterface dialog, int which) {
                                // The 'which' argument contains the index position of the selected item
                                if (which==0){
                                    //open app
                                    Intent intent = getPackageManager().getLaunchIntentForPackage(systemAppsList.get(i).packages);
                                    if(intent != null){
                                        startActivity(intent);
                                    }
                                    else {
                                        Toast.makeText(MainActivity.this, systemAppsList.get(i).packages + " Error, Please Try Again...", Toast.LENGTH_SHORT).show();
                                    }
                                }
                                //open info
                                if (which==1){
                                    Intent intent = new Intent(android.provider.Settings.ACTION_APPLICATION_DETAILS_SETTINGS);
                                    intent.setData(Uri.parse("package:" + systemAppsList.get(i).packages));
                                    Toast.makeText(MainActivity.this, systemAppsList.get(i).packages, Toast.LENGTH_SHORT).show();
                                    startActivity(intent);
                                }
                            }
                        });
                builder.show();


            }
        });

        //Total Number of System-Apps(i.e. List Size)
        String  abc = systemApsLv.getCount()+"";
        TextView countApps = (TextView)findViewById(R.id.countApps);
        countApps.setText("Total System Apps: "+abc);
        Toast.makeText(this, abc+" Apps", Toast.LENGTH_SHORT).show();

    }

    //get System userapps
    private List<AppList> getSystemApps() {
        PackageManager pm = getPackageManager();
        List<AppList> apps = new ArrayList<AppList>();
        List<PackageInfo> packs = getPackageManager().getInstalledPackages(0);
        //List<PackageInfo> packs = getPackageManager().getInstalledPackages(PackageManager.GET_PERMISSIONS);
        for (int i = 0; i < packs.size(); i++) {
            PackageInfo p = packs.get(i);
            if ((isSystemPackage(p))) {
                String appName = p.applicationInfo.loadLabel(getPackageManager()).toString();
                Drawable icon = p.applicationInfo.loadIcon(getPackageManager());
                String packages = p.applicationInfo.packageName;
                apps.add(new AppList(appName, icon, packages));
            }
        }
        return apps;
    }

    private boolean isSystemPackage(PackageInfo pkgInfo) {
        return (pkgInfo.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0;
    }

    public class AppAdapter extends BaseAdapter {

        public LayoutInflater layoutInflater;
        public List<AppList> listStorage;

        public AppAdapter(Context context, List<AppList> customizedListView) {
            layoutInflater =(LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            listStorage = customizedListView;
        }

        @Override
        public int getCount() {
            return listStorage.size();
        }

        @Override
        public Object getItem(int position) {
            return position;
        }

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

        @Override
        public View getView(int position, View convertView, ViewGroup parent) {
            int mLastPosition = 0;
            float initialTranslation = (mLastPosition <= position ? 500f : -500f);

            ViewHolder listViewHolder;
            if(convertView == null){
                listViewHolder = new ViewHolder();
                convertView = layoutInflater.inflate(R.layout.installed_app_list, parent, false);

                listViewHolder.textInListView = (TextView)convertView.findViewById(R.id.list_app_name);
                listViewHolder.imageInListView = (ImageView)convertView.findViewById(R.id.app_icon);
                listViewHolder.packageInListView=(TextView)convertView.findViewById(R.id.app_package);
                convertView.setTag(listViewHolder);
            }else{
                listViewHolder = (ViewHolder)convertView.getTag();
            }
            listViewHolder.textInListView.setText(listStorage.get(position).getName());
            listViewHolder.imageInListView.setImageDrawable(listStorage.get(position).getIcon());
            listViewHolder.packageInListView.setText(listStorage.get(position).getPackages());

            return convertView;
        }

        class ViewHolder{
            TextView textInListView;
            ImageView imageInListView;
            TextView packageInListView;
        }
    }

    public class AppList {
        private String name;
        Drawable icon;
        private String packages;
        public AppList(String name, Drawable icon, String packages) {
            this.name = name;
            this.icon = icon;
            this.packages = packages;
        }
        public String getName() {
            return name;
        }
        public Drawable getIcon() {
            return icon;
        }
        public String getPackages() {
            return packages;
        }

    }

}

Step 3: Output