JsonEditor class

Edit your JSON object with this package. Create, edit and format objects using this user friendly widget.

See the sample below for an example.

JsonEditor Live Demo

Screenshot

Getting started

• Add the package in your flutter project. Run this command in terminal flutter pub add json_editor_flutter.
• Import the package import 'package:json_editor_flutter/json_editor_flutter.dart';.

Using JsonEditor

JSON can be edited in two ways, Tree editor or text editor. You can disable either of them.

When UI editor is active, you can disable adding/deleting keys by using enableMoreOptions. Editing keys and values can also be disabled by using enableKeyEdit and enableValueEdit.

When text editor is active, it will simply ignore enableMoreOptions, enableKeyEdit and enableValueEdit.

duration is the debounce time for onChanged function. Defaults to 500 milliseconds.

editors is the supported list of editors. First element will be used as default editor. Defaults to [Editors.tree, Editors.text].

Example

JsonEditor(
  onChanged: (value) {
    // Do something
  },
  json: jsonEncode({
    "name": "John Doe",
    "age": 24,
    "hobbies": ["Reading", "Coding"],
    "address": {
      "street": "Main Street",
      "number": 1234567890,
      "city": "New York"
    }
  }),
)

Enums

Supported editors for JSON Editor.

enum  Editors { tree, text }

Customization

expandedObjects

[expandedObjects] refers to the objects that will be expanded by default. Index can be provided when the data is a List.

data = {
  "hobbies": ["Reading books", "Playing Cricket"],
  "education": [
    {"name": "Bachelor of Engineering", "marks": 75},
    {"name": "Master of Engineering", "marks": 72},
  ],
}

For the given data

1. To expand education pass => ["education"]
2. To expand hobbies and education pass => ["hobbies", "education"]
3. To expand the first element (index 0) of education list, this means we need to expand education too. In this case you need not to pass "education" separately. Just pass a list of all nested objects => [["education", 0]]

JsonEditor(
  expandedObjects: const [
    "hobbies",
    ["education", 0] // expands nested object in `education`
  ],
  onChanged: (_) {},
  json: jsonEncode(data),
)

Properties

Property	Type	Default Value	Description
json	String	required	JSON object to be edited
onChanged	Function	required	Callback function that will be called with the new data
duration	Duration	500 ms	Debounce duration for onChanged function
enableMoreOptions	bool	true	Enables more options like adding or deleting data
enableKeyEdit	bool	true	Enables editing of keys
enableValueEdit	bool	true	Enables editing of values
themeColor	Color?	null	Theme color for the editor, changes the border color and header color
editors	List	[tree, text]	List of supported editors, first element will be used as default editor
actions	List<Widget>	[]	A list of Widgets to display in a row at the end of header
enableHorizontalScroll	bool	false	Enables horizontal scroll for the tree view
searchDuration	Duration	500 ms	Debounce duration for search function
hideEditorsMenuButton	bool	false	Hides the option of changing editor
expandedObjects	List	[]	List of objects to expand by default

Additional information

You can raise an issue/feature request on github Json Editor Issues

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