NoNonsense-FilePicker | A file/directory-picker for android | Android library

import java.awt.FlowLayout;
import java.io.File;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.SwingUtilities;

public class TestJFilePicker extends JFrame {

    private static final long serialVersionUID 

Public Function ShipmentHistPt2()

    Dim path1 As String
    path1 = OpenFile1()                                    'calls function for filePicker
    If path1 <> vbNullString Then Workbooks.Open (path1)   'If file selected, opens 

public class ViewModel : INotifyPropertyChanged
{
    public ViewModel()
    {
        PickFileCommand = new ActionCommand(PickFile, true);
    }

    public event PropertyChangedEventHandler PropertyChanged;

    public ICommand PickFileC