material_dialog

A wrapper on top of alert dialog provided by flutter.

Demo

Use this package as a library

1. Depend on it

Add this to your package's pubspec.yaml file:

dependencies:
  material_dialog: ^0.0.x

2. Install it

You can install packages from the command line:

with Flutter

$ flutter packages get

Alternatively, your editor might support flutter packages get. Check the docs for your editor to learn more.

3. Import it

Now in your Dart code, you can use:

import 'package:material_dialog/material_dialog.dart';

How to use

Using Material Dialog is quite easy, all you need to do is

MaterialDialog(
  content: Text(_alertText),
  actions: <Widget>[
    FlatButton(
      child: Text(
        'CANCEL',
        style: Theme.of(context).textTheme.button.copyWith(
            fontSize: 12.0, color: Theme.of(context).primaryColor),
      ),
      onPressed: () {
        Navigator.pop(context, DialogDemoAction.agree);
      },
    ),
    FlatButton(
      child: Text(
        'OK',
        style: Theme.of(context).textTheme.button.copyWith(
            fontSize: 12.0, color: Theme.of(context).primaryColor),
      ),
      onPressed: () {
        Navigator.pop(context, DialogDemoAction.cancel);
      },
    ),
  ],
);

Use below method to show dialog

  void showDemoDialog<T>({BuildContext context, Widget child}) {
    showDialog<T>(
      context: context,
      builder: (BuildContext context) => child,
    ).then<void>((T value) {
      // The value passed to Navigator.pop() or null.
      if (value != null) {
        _scaffoldKey.currentState.showSnackBar(SnackBar(
          content: Text('You selected: $value'),
        ));
      }
    });
  }

Simple Alert Dialog

Widget _buildAlertDialog(ThemeData theme, BuildContext context) {
return MaterialDialog(
  content: Text(_alertText),
  actions: <Widget>[
    FlatButton(
      child: Text(
        'CANCEL',
        style: Theme.of(context).textTheme.button.copyWith(
            fontSize: 12.0, color: Theme.of(context).primaryColor),
      ),
      onPressed: () {
        Navigator.pop(context, DialogDemoAction.agree);
      },
    ),
    FlatButton(
      child: Text(
        'OK',
        style: Theme.of(context).textTheme.button.copyWith(
            fontSize: 12.0, color: Theme.of(context).primaryColor),
      ),
      onPressed: () {
        Navigator.pop(context, DialogDemoAction.cancel);
      },
    ),
  ],
);
}

Alert Dialog With Title

Widget _buildAlertDialogWithTitle(ThemeData theme, BuildContext context) {
return MaterialDialog(
  title: Text(_alertTitle),
  subTitle: Text('Subtitle'),
  content: Text(_alertText),
  actions: <Widget>[
    FlatButton(
      child: Text(
        'CANCEL',
        style: Theme.of(context).textTheme.button.copyWith(
            fontSize: 12.0, color: Theme.of(context).primaryColor),
      ),
      onPressed: () {
        Navigator.pop(context, DialogDemoAction.agree);
      },
    ),
    FlatButton(
      child: Text(
        'OK',
        style: Theme.of(context).textTheme.button.copyWith(
            fontSize: 12.0, color: Theme.of(context).primaryColor),
      ),
      onPressed: () {
        Navigator.pop(context, DialogDemoAction.cancel);
      },
    ),
  ],
);
}

Alert Dialog With Close & Back Button

Widget _buildAlertDialogWithCloseAndBackButton(
  ThemeData theme, BuildContext context) {
return MaterialDialog(
  title: Text(_alertTitle),
  subTitle: Text('Subtitle'),
  content: Text(_alertText),
  enableBackButton: true,
  enableCloseButton: true,
  onBackButtonClicked: () {
    Navigator.pop(context, DialogDemoAction.agree);
  },
  onCloseButtonClicked: () {
    Navigator.pop(context, DialogDemoAction.cancel);
  },
  actions: <Widget>[
    FlatButton(
      child: Text(
        'CANCEL',
        style: Theme.of(context).textTheme.button.copyWith(
            fontSize: 12.0, color: Theme.of(context).primaryColor),
      ),
      onPressed: () {
        Navigator.pop(context, DialogDemoAction.agree);
      },
    ),
    FlatButton(
      child: Text(
        'OK',
        style: Theme.of(context).textTheme.button.copyWith(
            fontSize: 12.0, color: Theme.of(context).primaryColor),
      ),
      onPressed: () {
        Navigator.pop(context, DialogDemoAction.cancel);
      },
    ),
  ],
);
}

Alert Dialog With Children

Widget _buildAlertDialogWithChildren(
  ThemeData theme, BuildContext context, bool isFullScreen) {
return MaterialDialog(
  borderRadius: 8.0,
  enableFullHeight: isFullScreen,
  enableFullWidth: isFullScreen,
  enableCloseButton: true,
  closeButtonColor: Colors.white,
  headerColor: Theme.of(context).primaryColor,
  title: Text(
    _alertTitle,
    style: TextStyle(
      color: Colors.white,
      fontSize: 18.0,
    ),
  ),
  subTitle: Text(
    'Subtitle',
    style: TextStyle(
      color: Colors.white70,
      fontSize: 12.0,
    ),
  ),
  onCloseButtonClicked: () {
    Navigator.pop(context, DialogDemoAction.cancel.toString());
  },
  children: <Widget>[
    Text(
      _alertTitle,
      style: TextStyle(
        fontSize: 18.0,
      ),
    ),
    SizedBox(height: 8.0),
    Text(
      _alertText,
      style: TextStyle(
        fontSize: 12.0,
      ),
    ),
    SizedBox(height: 16.0),
    TextField(
      decoration: InputDecoration(hintText: 'Enter Username'),
    ),
  ],
  actions: <Widget>[
    FlatButton(
      child: Text(
        'CANCEL',
        style: Theme.of(context).textTheme.button.copyWith(
            fontSize: 12.0, color: Theme.of(context).primaryColor),
      ),
      onPressed: () {
        Navigator.pop(context, DialogDemoAction.cancel.toString());
      },
    ),
    FlatButton(
      child: Text(
        'OK',
        style: Theme.of(context).textTheme.button.copyWith(
            fontSize: 12.0, color: Theme.of(context).primaryColor),
      ),
      onPressed: () {
        Navigator.pop(context, DialogDemoAction.agree.toString());
      },
    )
  ],
);
}

List of params

PropertyTypeDefault ValueDescription
titleWidgetnullThe (optional) title of the dialog is displayed in a large font at the top of the dialog.
subTitleWidgetnullThe (optional) subtitle of the dialog is displayed below title of the dialog.
contentWidgetnullThe (optional) content of the dialog is displayed in the center of the dialog in a lighter font.
actionsListnullThe (optional) set of actions that are displayed at the bottom of the dialog.
childrenListnullThe (optional) content of the dialog is displayed in a SingleChildScrollView underneath the title.
headerColorColornullThe (optional) header color is displayed in the header background.
backButtonColorColorColors.whiteThe (optional) back button color. By default its set to white.
closeButtonColorColorColors.whiteThe (optional) close button color. By default its set to white.
onBackButtonClickedVoidCallbacknullA callback function to get back button event from dialog. If back button is enabled this callback has to be provided in-order to get callbacks.
onCloseButtonClickedVoidCallbacknullA callback function to get close button event from dialog. If close button is enabled this callback has to be provided in-order to get callbacks.
enableBackButtonboolfalseThe (optional) value to enable/disable back button for a dialog.
enableCloseButtonboolfalseThe (optional) value to enable/disable close button for a dialog.
enableFullWidthbooltrueThe (optional) value to stretch dialog to its max width.
enableFullHeightboolfalseThe (optional) value to stretch dialog to its max height.
borderRadiusdouble10.0The (optional) border radius of a dialog. by default its 10.0.

Thanks

If you liked my work, don’t forget to ⭐ star the repo to show your support.

Libraries

button_bar
dialog
material_dialog

Dart

VM

dart:ffi
Foreign Function Interface for interoperability with the C programming language. [...]

Web

dart:html
HTML elements and other resources for web-based applications that need to interact with the browser and the DOM (Document Object Model). [...]
dart:js
Low-level support for interoperating with JavaScript. [...]
dart:js_util
Utility methods to efficiently manipulate typed JSInterop objects in cases where the name to call is not known at runtime. You should only use these methods when the same effect cannot be achieved with @JS annotations. These methods would be extension methods on JSObject if Dart supported extension methods.