FSuper

FSuper can help developers build complex views quickly and comfortably.

It supports rich text, rounded corners, borders, pictures, small red dots, and set up to two sub-components at the same time, and control their relative positions.

Author：Newton(coorchice.cb@alibaba-inc.com)

English | 简体中文

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✨ Features

• Rich corner effect
• Exquisite border decoration
• Naturally supports wonderful rich text
• Gradient effect
• More sense of space Shadow
• Not simple Red Point
• Flexible and powerful relative layout

???? Guide

⚙️ Parameters

???? Basic parameters

???? Child Widget Parameters

???? Red Point Parameters

???? Stroke Parameters

???? Shadow Parameters

???? Demo

???? Basic Demo

FSuper(
  margin: EdgeInsets.fromLTRB(12, 0, 12, 0),
  width: double.infinity,
  text: "This is FSuper!",
  backgroundColor: Color(0xffffc900),
),


FSuper(
  text: "En.. ",
  spans: [
    TextSpan(
        text: "FWidget",
        style: TextStyle(
          color: Color(0xffffc900),
          backgroundColor: Colors.black38,
          fontSize: 20,
        )),
  ...
  ],
),

FSuper The first part of the text is set through the text property, and related text style properties can be set. If you want to achieve rich text effects, you can pass a TextSpan array via the spans property.

Of course, by default, the properties you have not set for TextSpan will automatically inherit the text style configuration of FSuper.

By default, FSuper is able to adapt the text content size.

But you can still specify a specific size through the width, height properties. If you want the parent container to be full of components, you can set their value to double.infinity.

⚠️ You should never set the size of FSuper to double.infinity in an infinite parent container, because it really does not know how big it should be!

In addition, FSuper also provides maxWidth and maxHeight to assist in layout, which is useful in the case of an uncertain component size. Your components will never exceed their limits.

???? Corner & Stroke Demo

FSuper(
  width: 130,
  padding: EdgeInsets.only(top: 16, bottom: 16)
  text: 'Corner FSuper',
  backgroundColor: Color(0xffFF7043),
  corner: Corner.all(12),
  cornerStyle: CornerStyle.bevel,
),

FSuper(
  text: '音乐类型:流行音乐',
  textColor: Color(0xffc2bfc2),
  padding: EdgeInsets.all(2),
  corner: Corner.all(3),
  strokeColor: Color(0xffc2bfc2),
  strokeWidth: 1,
),

Using FSuper to declare a corner and border component is very simple.

Corners can be declared just by the corner property. A Corner object will describe the corners of the component. You can control each corner individually.

FSuper supports two types of corners:

• CornerStyle.round：Rounded corners. This is what we need most of the time.
• CornerStyle.bevel：bevel corners.

If you want a border, you only need to make StrokeWidth> 0 of FSuper. In addition, the strokeColor property allows you to describe the color of the border.

???? Gradient & Shadow Demo

FSuper(
  width: 280,
  height: 45,
  text: 'Search Flight',
  textAlignment: Alignment.center,
  textSize: 16,
  textColor: Color(0xff333333),
  corner: Corner.all(23),
  gradient: LinearGradient(colors: [
    Color(0xfffed83a),
    Color(0xfffcad2c),
  ]),
),

The gradient property allows you to declare a gradient background for FSuper using a gradient object.

The gradient background will override the solid background color set by backgroundColor.

⚠️ Background priority：backgroundImage > gradient > backgroundColor.

FSuper(
  text: 'Overview',
  backgroundColor: Colors.white,
  padding: EdgeInsets.fromLTRB(6.0 + 18.0 + 6.0, 9, 9, 9),
  corner: Corner(rightTopCorner: 20, rightBottomCorner: 20),
  child1: Icon(
    Icons.subject,
    size: 18,
    color: Color(0xffa6a4a7),
  ),
  child1Alignment: Alignment.centerLeft,
  child1Margin: EdgeInsets.only(left: 3),
  shadowColor: Colors.black38,
  shadowBlur: 10,
  onClick: () {
    _showDialog(context, "Disco");
  },
),

If you are considering adding shadow effects to your components, using FSuper is a great choice.

???? Red Point Demo

FSuper(
  width: 60,
  height: 60,
  backgroundColor: Color(0xffeeeeee),
  corner: Corner.all(6),
  redPoint: true,
  redPointSize: 20,
  redPointText: "红包",
),

Using FSuper can be very simple to achieve the common Red Point effect. Just configure redPoint: true.

In addition, you can add arbitrary text content to the Red Point (it is really convenient) and set its position.

⚠️ The (0,0) position of the Red Point is in the upper right corner of FSuper.

One-stop service to meet all your needs.

???? Child Widget

FSuper(
    width: double.infinity,
    padding: EdgeInsets.fromLTRB(
        (16.0 + 25.0 + 12), 8, (0.0 + 8.0), 8),
    margin: EdgeInsets.fromLTRB(10, 10, 10, 0),
    corner: Corner.all(6),
    backgroundColor: Color(0xfffff0e7),
    strokeColor: Color(0xfffee0cd),
    strokeWidth: 1,
    text: '警告提示的文案',
    textColor: Color(0xff7e7c7a),
    textAlignment: Alignment.centerLeft,
    textAlign: TextAlign.left,
    spans: [
      ...
    ],
    child1: Transform.rotate(
      angle: pi,
      child: Icon(
        Icons.info,
        size: 25,
        color: Color(0xfffd6721),
      ),
    ),
    child1Alignment: Alignment.centerLeft,
    child1Margin: EdgeInsets.fromLTRB(16, 0, 0, 0),
    child2: Icon(
      Icons.close,
      size: 15,
      color: Colors.black38,
    ),
    child2Alignment: Alignment.topRight,
    child2Margin: EdgeInsets.fromLTRB(0, 8, 12, 0),
    onChild2Click: () {
      _showDialog(context, "关闭警告⚠️");
    },
  ),

In FSuper, two child components can be declared by child1, child2. You can specify their location and declare a click event.

This will greatly increase development speed in some common and complex layouts. Especially in the scenario where the size of one component is small and uncertain, and the other component determines the position based on its size, FSuper handles everything.

The effects of these components in the picture only need one FSuper component to complete.

???? More Demo

Do not be surprised, the effects in the figure are all achieved with FSuper.

The design of the sub-components makes FSuper a qualitative leap in flexibility, and most of the complex views are capable.

For example, the chat bubble in the picture does not need to use the background picture, just use FSuper to achieve it. This makes such components extremely flexible and easy to modify.

FSuper(
  maxWidth: 220,
  textAlign: TextAlign.left,
  text: "I'm created by FSuper ????",
  padding: EdgeInsets.only(
      left: 12, right: 12, top: 15, bottom: 15),
  backgroundColor: Color(0xffa5ed7e),
  corner: Corner.all(6),
  child1: Transform.rotate(
    angle: pi / 4,
    child: FSuper(
      width: 10,
      height: 10,
      backgroundColor: Color(0xffa5ed7e),
      corner: Corner.all(1.5),
    ),
  ),
  child1Alignment: Alignment.topRight,
  child1Margin: EdgeInsets.only(right: -4, top: 20),
  shadowColor: Color(0xffa5ed7e),
  shadowBlur: 5,
),

???? How to use？

Add dependency in project pubspec.yaml file:

???? pub dependency

dependencies:
  fsuper: ^<version number>

⚠️ Attention, please go to pub to get the latest version number of FSuper

???? git dependencies

dependencies:
  fsuper:
    git:
      url: 'git@github.com:Fliggy-Android-Team/fsuper.git'
      ref: '<Branch number or tag number>'

⚠️ Attention，Please refer to the official project of FSuper for the branch number or tag.

???? License

Copyright 2020-present Fliggy Android Team <alitrip_android@list.alibaba-inc.com>.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at following link.

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

Download FSuper source code on GitHub

https://github.com/Fliggy-Android-Team/fsuper

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