File dialogs are pop-up windows that allow users to choose files from the user's system.
To create an file dialog, as with all dialogs, you'll need to create and pass in a WindowBasedTextGUI:
// Setup terminal and screen layers
Terminal terminal = new DefaultTerminalFactory().createTerminal();
Screen screen = new TerminalScreen(terminal);
screen.startScreen();
// Setup WindowBasedTextGUI for dialogs
final WindowBasedTextGUI textGUI = new MultiWindowTextGUI(screen);
In the following example, a file dialog is shown to the user when the button is clicked. When the user selects and submits a file, the full file path of the selected file is returned and stored in the variable input:
panel.addComponent(new Button("Test", new Runnable() {
@Override
public void run() {
String input = new FileDialogBuilder()
.setTitle("Open File")
.setDescription("Choose a file")
.setActionLabel("Open")
.build()
.showDialog(textGUI);
}
}));
