public class MainActivity extends AppCompatActivity {
    ActivityMainBinding binding;
    List<PackageInfo> listPackage;
    List<ApplicationInfo> listApplication;
    List<String> list;
    private static final String TAG = "MainActivity";

    @SuppressLint({"ClickableViewAccessibility", "QueryPermissionsNeeded", "WrongConstant"})
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        binding = DataBindingUtil.setContentView(this, R.layout.activity_main);
        listPackage = getPackageManager().getInstalledPackages(PackageManager.GET_ACTIVITIES);
        listApplication = getPackageManager().getInstalledApplications(PackageManager.GET_ACTIVITIES);
        list = new ArrayList<>();

        for (int i=0 ; i<listApplication.size();i++) {
            if (listApplication.get(i).loadLabel(getApplicationContext().getPackageManager()).toString().length() <=20) {
                list.add(listApplication.get(i).loadLabel(getApplicationContext().getPackageManager()).toString());
            }
            Log.i(TAG, "onCreate123: "+list);
        }

        binding.recycler.setLayoutManager(new LinearLayoutManager(this));
        binding.recycler.setAdapter(new AdapterName(list,this));

    }

}