The easiest way to create a dotted line view in Flutter

  UI

fdottedline

Use the easiest way to create a dotted line view!

[FDottedLine] provides developers with the ability to create dashed lines. It also supports creating a dashed border for a [Widget]. Support for controlling the thickness, spacing, and corners of the dotted border.

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

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 Features

  • Supports dotted lines in both horizontal and vertical directions
  • Support to create dashed shapes
  • Provide super easy way to add dotted border to Widget
  • Support creating flexible dotted corner effects

 Parameter & Interface

 FDottedLine param

ParamTypeNecessaryDefaultdesc
colorColorfalseColors.blackDotted line color
heightdoublefalsenullheight. If there is only [height] and no [width], you will get a dotted line in the vertical direction.If there are both [width] and [height], you will get a dotted border.
widthdoublefalsenullwidth. If there is only [width] and no [height], you will get a dotted line in the horizontal direction.If there are both [width] and [height], you will get a dotted border.
strokeWidthdoublefalse1.0The thickness of the dotted line
dottedLengthdoublefalse5.0The length of each small segment in the dotted line
spacedoublefalse3.0The distance between each segment in the dotted line
cornerFDottedLineCornerfalsenullThe corners of the dotted border. See [FDottedLineCorner] for details
childWidgetfalsenullIf [child] is set, [FDottedLine] will serve as the dotted border of [child].At this time, [width] and [height] will no longer be valid.

 Demo

 Horizontal Demo

FDottedLine(
  color: color,
  width: 160.0,
  strokeWidth: 2.0,
  dottedLength: 10.0,
  space: 2.0,
)

It is very simple to create a horizontal dotted line through FDottedLine.

The developer only needs to set the width parameter, but not the height parameter, which is all the developer needs to do for this.

If you want to control the thickness of the dotted line, set strokeWidth.

Through the dottedLength and space parameters, developers can freely control the length of each small segment in the dotted line and the distance between them.

 Vertical Demo

FDottedLine(
  color: color,
  height: 160.0,
  strokeWidth: 2.0,
  dottedLength: 10.0,
  space: 2.0,
)

If you want to create a dotted line in the vertical direction, it is also very simple.

Developers only need to assign a value to height and leave width to be null or 0.

 Dotted Shape Demo

FDottedLine(
  color: Colors.lightBlue[600],
  height: 100.0,
  width: 50,
  strokeWidth: 2.0,
  dottedLength: 10.0,
  space: 2.0,
)
full_moon_with_face

FDottedLine can not only create simple dotted lines .

When developers assign values ​​to both width and height, they will be able to get a dotted rectangle! It’s incredible.

 Corner Demo

FDottedLine(
  color: Colors.lightBlue[600],
  height: 70.0,
  width: 70.0,
  strokeWidth: 2.0,
  dottedLength: 10.0,
  space: 2.0,
  
  /// Set corner
  corner: FDottedLineCorner.all(50),
)

With FDottedLine, developers can even create corner effects of dashed rectangles. For example: dotted rounded rectangle, dotted round…

 Child Demo

FDottedLine(
  color: color,
  strokeWidth: 2.0,
  dottedLength: 8.0,
  space: 3.0,
  corner: FDottedLineCorner.all(6.0),
  
  /// add widget
  child: Container(
    color: Colors.blue[100],
    width: 130,
    height: 70,
    alignment: Alignment.center,
    child: Text("0873"),
  ),
)

In the past, it was very difficult to add a dotted border to a Widget.

Because the official did not provide us with a good solution. But now, FDottedLine makes things easier than ever. Developers only need to use their Widget as a child of FDottedLine.

/// #1
FDottedLine(
  color: color,
  strokeWidth: 2.0,
  dottedLength: 8.0,
  space: 3.0,
  corner: FDottedLineCorner.all(75.0),
  child: Container(
    width: 130,
    height: 130,
    alignment: Alignment.center,
    /// #2
    child: FDottedLine(
      color: color,
      strokeWidth: 2.0,
      dottedLength: 8.0,
      space: 3.0,
      corner: FDottedLineCorner.all(20.0),
      child: Container(
        width: 43.0,
        height: 43.0,
        color: Colors.grey[900],
      ),
    ),
  ),
)

This also means that through the nesting of FDottedLine, many super interesting views can be created.

 More Demo

See what FDottedLine can do!

When there is such a simple way to create a dotted line, developers can freely build more wonderful views.

high_brightness

More about the application of FDottedLine , look forward to the exploration of developers .

 How to use？

Add dependencies in the project pubspec.yaml file:

 pub dependency

dependencies:
  fdottedline: ^<version number>
warning

 Attention，please go to [pub] (https://pub.dev/packages/fdottedline) to get the latest version number of FDottedLine

 Git dependency

dependencies:
  fdottedline:
    git:
      url: 'git@github.com:Fliggy-Mobile/fdottedline.git'
      ref: '<Branch number or tag number>'
warning

 Attention，please refer to [FDottedLine] (https://github.com/Fliggy-Mobile/fdottedline) official project for 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.

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How to run the Demo project?

1.clone project to local

2.Enter the project example directory and run the following command

flutter create .

3.Run the demo in example

Download dotted line view widget package source on GitHub

https://github.com/Fliggy-Mobile/fdottedline