Create a PopupMenu instance anchroed to a UI component:

View anchorElement = findViewById(R.id.context_trigger);
PopupMenu actionMenu = new PopupMenu(getApplicationContext(), anchorElement);

Add entries to the menu programmatically:

Menu menuContainer = actionMenu.getMenu();
menuContainer.add("Export Data");
menuContainer.add("Archive Item");
menuContainer.add("Configure Settings");

Define click handling for menu options:

actionMenu.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() {
    @Override
    public boolean onMenuItemClick(MenuItem selectedItem) {
        String command = selectedItem.getTitle().toString();
        if ("Export Data".equals(command)) {
            // Export functionality
        } else if ("Archive Item".equals(command)) {
            // Archiving process
        } else if ("Configure Settings".equals(command)) {
            // Settings navigation
        }
        return true;
    }
});

Display the menu when triggered:

actionMenu.show();

Complete implementation:

View anchorElement = findViewById(R.id.context_trigger);
PopupMenu actionMenu = new PopupMenu(getApplicationContext(), anchorElement);

Menu menuContainer = actionMenu.getMenu();
menuContainer.add("Export Data");
menuContainer.add("Archive Item");
menuContainer.add("Configure Settings");

actionMenu.setOnMenuItemClickListener(item -> {
    String command = item.getTitle().toString();
    if ("Export Data".equals(command)) {
        // Export functionality
    } else if ("Archive Item".equals(command)) {
        // Archiving process
    } else if ("Configure Settings".equals(command)) {
        // Settings navigation
    }
    return true;
});

actionMenu.show();