Flutter UI Widgets

Nov 9 2021 · Dart 2.14, Flutter 2.5, VS Code 1.61

Part 1: Flutter UI Widgets

11. Display Dialogs

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Previous episode: 10. Work with Forms Next episode: 12. Make Your App Design Responsive

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I don’t know about you but opening up the debugConsole to view the submitted form values seems kinda boring. Let’s display the result in an AlertDialog. Paste in the following code below the build method:

...
Future<void> _showResultDialog(BuildContext context) {
  return showDialog<void>(
    context: context,
    builder: (context) {
      return AlertDialog(
        content: FormResult(data: formData),
        actions: <Widget>[
          TextButton(
            child: const Text('Done'),
            onPressed: () {
              Navigator.pop(context);
            },
          ),
        ],
      );
    },
  );
}
...
// Call it after the setState in the onPressed method
_showResultDialog(context)
// Chained in the showDialog.
).then((_) {
  setState(() {
    formData.isBreaking = false;
    formData.category = null;
  });
});