More Built-in Controls or Toolkit-Nugget-Package Controls so that Developers have more focus on App Features.

[nextcodelab]

ADD MORE CUSTOMIZABLE PROPERTIES/FEATURES ON BUILT-IN CONTROLS.

These are some of my controls that I really like.

In flutter no need renderer to make this beautiful checkbox menu dialog with custom add text. hope we can do it in MAUI.
I write these code for reusable checkbox menus for the future flutter app.

      BuildContext context, List<String> menus,
      {String title = "Category", String hintText = "Add tags"}) {
    Map<String, bool> items = Map<String, bool>();
    menus.forEach((element) {
      items[element] = true;
    });
    double h = 0;
    if (menus.length >= 5) {
      h = 270;
    }
    List<String> selecteds = menus.toList();
    String newTag = "";
    final Future<List<String>> action = showDialog(
      context: context,
      builder: (context) {
        return StatefulBuilder(
          // StatefulBuilder
          builder: (context, setState) {
            return AlertDialog(
              actions: <Widget>[
                Container(
                  width: 400,
                  height: null,
                  child: Column(
                    crossAxisAlignment: CrossAxisAlignment.center,
                    children: <Widget>[
                      Text(
                        title,
                        style: TextStyle(fontSize: 20),
                      ),
                      SizedBox(
                        height: 5,
                      ),
                      Container(
                        height: 2,
                        color: themeData.colorScheme.secondary,
                      ),
                      SizedBox(
                        height: 15,
                      ),
                      Container(
                        height: h == 0 ? null : h,
                        child: SingleChildScrollView(
                          child: Column(children: [
                            Column(
                              children: List<Widget>.generate(menus.length,
                                  (int index) {
                                return Column(
                                  children: [
                                    Divider(
                                      height: 0,
                                    ),
                                    CheckboxListTile(
                                      value: items[menus[index]],
                                      title: Text(menus[index]),
                                      onChanged: (valueP) {
                                        setState(() {
                                          items.update(menus[index],
                                              (value) => value = valueP);
                                          selecteds.clear();
                                          items.forEach((key, value) {
                                            if (value) {
                                              selecteds.add(key);
                                            }
                                          });
                                          print(selecteds);
                                        });
                                      },
                                    ),
                                  ],
                                );
                              }),
                            ),
                            SizedBox(
                              height: 5,
                            ),
                            TextEditorCard(
                              hintText,
                              "",
                              false,
                              onTextChanged: (value) {
                                newTag = value;
                              },
                            ),
                          ]),
                        ),
                      ),
                      SizedBox(
                        height: 5,
                      ),
                      Row(
                        mainAxisAlignment: MainAxisAlignment.center,
                        children: <Widget>[
                          FlatButton(
                            shape: RoundedRectangleBorder(
                                borderRadius: BorderRadius.circular(5.0),
                                side: BorderSide(
                                    color: themeData.colorScheme.secondary)),
                            color: themeData.secondaryHeaderColor,
                            textColor: getBrightnessColor(
                                themeData.secondaryHeaderColor),
                            padding: EdgeInsets.all(8.0),
                            onPressed: () {
                              Navigator.of(context).pop(null);
                            },
                            child: Text(
                              "Cancel".toUpperCase(),
                              style: TextStyle(
                                fontSize: 14.0,
                              ),
                            ),
                          ),
                          SizedBox(width: 20),
                          FlatButton(
                            shape: RoundedRectangleBorder(
                                borderRadius: BorderRadius.circular(5.0),
                                side: BorderSide(
                                    color: themeData.colorScheme.secondary)),
                            color: themeData.colorScheme.secondary,
                            textColor: getBrightnessColor(
                                themeData.colorScheme.secondary),
                            padding: EdgeInsets.all(8.0),
                            onPressed: () {
                              if (newTag.isNotEmpty &&
                                  selecteds.contains(newTag) == false) {
                                selecteds.add(newTag);
                                print(selecteds);
                              }
                              Navigator.of(context).pop(selecteds);
                            },
                            child: Text(
                              "Save".toUpperCase(),
                              style: TextStyle(
                                fontSize: 14.0,
                              ),
                            ),
                          ),
                        ],
                      )
                    ],
                  ),
                )
              ],
            );
          },
        );
      },
    );
    return (action != null) ? action : selecteds;
  }```

[nextcodelab]

Setting tile can also be achieved easily these code no need renderer this is my the code I have written in flutter...

import 'package:flutter/material.dart';
import 'package:flutter_project/basics/styles/theme_settings_widget.dart';

class TileHeader extends StatelessWidget {
  final String subtitle;
  final String title;
  final Function onTap;
  final double size;
  final Color iconColor;
  final IconData iconData;
  const TileHeader(
      {Key key,
      @required this.onTap,
      this.size = 35,
      this.iconColor,
      this.iconData,
      this.subtitle,
      this.title})
      : super(key: key);

  @override
  Widget build(BuildContext context) {
    Color iconC = iconColor;
    if (iconColor == null) {
      themeData = Theme.of(context);
      iconC = themeData.colorScheme.secondary;
    }
    var boxShadow = BoxDecoration(
      color: backgroundColorCard,
      borderRadius: BorderRadius.only(
          topLeft: Radius.circular(5),
          topRight: Radius.circular(5),
          bottomLeft: Radius.circular(5),
          bottomRight: Radius.circular(5)),
      boxShadow: [
        BoxShadow(
          color: Colors.grey.withOpacity(0.1),
          spreadRadius: 3,
          blurRadius: 3,
          offset: Offset(0, 1), // changes position of shadow
        ),
      ],
    );
    return Container(
        decoration: boxShadow,
        child: MaterialButton(
          onPressed: () {},
          padding: EdgeInsets.only(
            left: 6,
          ),
          child: ListTile(
            title: Text(title),
            subtitle: Text(subtitle),
            onTap: onTap,
            leading: Icon(
              iconData == null ? Icons.lightbulb_outline : iconData,
              size: size,
              color: iconC,
            ),
          ),
        ));
  }
}

[nextcodelab]

On AppBar builder you can attach any kind of widget example you want dropdown menu... I hope we can do it in MAUI this code no need renderer...

AppBar buildAppBar(BuildContext context) {
    var colorBar = getBrightnessColor(themeData.primaryColor);
    colorizeSystemsBars(SystemUiOverlayStyle(
        statusBarBrightness:
            ThemeData.estimateBrightnessForColor(themeData.primaryColor)));
    return AppBar(
      backgroundColor: themeData.primaryColor,
      elevation: 0,
      centerTitle: false,
      title: Text(
        'Dashboard',
        style: TextStyle(color: colorBar),
      ),
      actions: <Widget>[
        Padding(
          padding: EdgeInsets.only(right: 10),
          child: ClipOval(
            child: Material(
              color: Colors.transparent, // button color
              child: InkWell(
                splashColor: themeData.primaryColorLight, // inkwell color
                child: SizedBox(
                    width: 40,
                    height: 40,
                    child: Icon(
                      Icons.add,
                      size: 40,
                      color: colorBar,
                    )),
                onTap: () {
                  var newItem = ProductHelper.createNewProduct();
                  product = newItem;
                  Navigator.push(
                    context,
                    MaterialPageRoute(
                      builder: (context) => DetailsScreen(),
                    ),
                  );
                },
              ),
            ),
          ),
        ),
        PopupMenuButton<OptionMenu>(
          onSelected: _seletedMenu,
          color: backgroundColorCard,
          icon: new Icon(
            Icons.more_vert,
            color: colorBar,
            size: 35,
          ),
          itemBuilder: (BuildContext context) {
            return mainOptions.map((OptionMenu choice) {
              return PopupMenuItem<OptionMenu>(
                  value: choice,
                  child: Row(
                    mainAxisAlignment: MainAxisAlignment.start,
                    children: [
                      new Tab(icon: new Icon(choice.icon, color: textColor)),
                      Padding(
                        padding: EdgeInsets.only(left: 10),
                        child: Text(
                          choice.title,
                          style: TextStyle(color: textColor),
                        ),
                      ),
                    ],
                  ));
            }).toList();
          },
        ),
      ],
    );

[nextcodelab]

In xamarin.forms we need to use plugin to have a round buttons and image... create renderer at all times is real PAIN..
These code is just few lines in flutter to achieved round image or buttons..

import 'package:flutter/material.dart';
import 'package:flutter_project/basics/styles/theme_settings_widget.dart';

class RoundButton extends StatelessWidget {
  final Function onTapped;
  final Icon icon;
  final double size;
  final Color color;
  const RoundButton({
    Key key,
    this.icon,
    this.size = 40,
    this.color,
    this.onTapped,
  }) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return Padding(
      padding: EdgeInsets.only(right: 10),
      child: ClipOval(
        child: Material(
          color: this.color == null
              ? Colors.transparent
              : themeData.colorScheme.secondary, // button color
          child: InkWell(
            splashColor: themeData.primaryColorLight, // inkwell color
            child: SizedBox(
                width: size,
                height: size,
                child: icon != null
                    ? icon
                    : Icon(
                        Icons.color_lens,
                        size: size,
                        color: color != null
                            ? color
                            : getBrightnessColor(themeData.primaryColor),
                      )),
            onTap: onTapped,
          ),
        ),
      ),
    );
  }
}

import 'package:flutter/material.dart';
import 'package:flutter_project/basics/styles/default_styles.dart';
import 'package:flutter_project/basics/styles/theme_settings_widget.dart';

class ProductPoster extends StatelessWidget {
  const ProductPoster({
    Key key,
    @required this.size,
    this.image,
  }) : super(key: key);

  final Size size;
  final String image;

  @override
  Widget build(BuildContext context) {
    return Container(
      margin: EdgeInsets.symmetric(vertical: defaultPadding),
      // the height of this container is 80% of our width
      height: size.width * 0.8,

      child: Stack(
        alignment: Alignment.bottomCenter,
        children: <Widget>[
          Container(
            height: size.width * 0.7,
            width: size.width * 0.7,
            decoration: BoxDecoration(
              color: themeData.colorScheme.secondary,
              shape: BoxShape.circle,
            ),
          ),
          Image.asset(
            image,
            height: size.width * 0.75,
            width: size.width * 0.75,
            fit: BoxFit.cover,
          ),
        ],
      ),
    );
  }
}

[nextcodelab]

Creating a back button is very simple with svg or
I hope in MAUI support xaml path... in flutter no need renderer..

AppBar buildAppBar(BuildContext context) {
    return AppBar(
      backgroundColor: backgroundColor,
      elevation: 0,
      leading: IconButton(
        padding: EdgeInsets.only(left: defaultPadding),
        icon: SvgPicture.asset(
          "assets/icons/back.svg",
          color: getBrightnessColor(backgroundColor),
        ),
        onPressed: () {
          Navigator.pop(context);
        },
      ),
      centerTitle: false,
      title: Text(
        'Back'.toUpperCase(),
        style: Theme.of(context).textTheme.bodyText2,
      ),
      
    );
  }

[nextcodelab]

In xamarin.forms, this is really hard to make a beautiful search ,box with icon, all we need in xamarin is renderer.
That takes weeks to have features on that simple searchbox icon. But... in flutter this is just 1 minute to write that searchbox with icon..

import 'package:flutter/material.dart';
import 'package:flutter_project/basics/styles/default_styles.dart';
import 'package:flutter_project/basics/styles/theme_settings_widget.dart';
import 'package:flutter_svg/flutter_svg.dart';

class SearchBox extends StatelessWidget {
  const SearchBox({
    Key key,
    this.onChanged,
  }) : super(key: key);

  final ValueChanged onChanged;

  @override
  Widget build(BuildContext context) {
    var txtColor = getBrightnessColor(themeData.primaryColor);
    return Container(
      margin: EdgeInsets.all(defaultPadding),
      padding: EdgeInsets.symmetric(
        horizontal: defaultPadding,
        vertical: defaultPadding / 4, // 5 top and bottom
      ),
      decoration: BoxDecoration(
        color: Colors.white.withOpacity(0.4),
        borderRadius: BorderRadius.circular(12),
      ),
      child: TextField(
        onChanged: onChanged,
        style: TextStyle(color: backgroundColorCard),
        decoration: InputDecoration(
          enabledBorder: InputBorder.none,
          focusedBorder: InputBorder.none,
          icon: SvgPicture.asset(
            "assets/icons/search.svg",
            color: txtColor.withOpacity(0.6),
          ),
          hintText: 'Search',
          hintStyle: TextStyle(color: txtColor.withOpacity(0.6)),
        ),
      ),
    );
  }
}

[nextcodelab]

Fully customizable text or label like this.. this is flutter.

Now flutter works on web I tried it and plan to create website using flutter ... I am still waiting for MAUI.NET... 👍