@sishuguojixuefu/react-native-json-tree
v1.2.5
Published
React Native JSON viewing component, based on react-json-tree
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react-native-json-tree
React Native JSON Viewer Component, based on react-json-tree. Supports iterable objects, such as Immutable.js.
Usage
import JSONTree from 'react-native-json-tree'
// If you're using Immutable.js: `npm i --save immutable`
import { Map } from 'immutable'
// Inside a React component:
const json = {
array: [1, 2, 3],
bool: true,
object: {
foo: 'bar'
}
immutable: Map({ key: 'value' })
}
<JSONTree data={json} />
Result:
Check out the Example directory.
Theming
This component now uses react-base16-styling module, which allows to customize component via theme
property, which can be the following:
- base16 theme data. The example theme data can be found here.
- object that contains style objects, strings (that treated as classnames) or functions. A function is used to extend its first argument
{ style, className }
and should return an object with the same structure. Other arguments depend on particular context (and should be described here). See createStylingFromTheme.js for the list of styling object keys. Also, this object can extendbase16
theme viaextend
property.
Every theme has a light version, which is enabled with invertTheme
prop.
const theme = {
scheme: 'monokai',
author: 'wimer hazenberg (http://www.monokai.nl)',
base00: '#272822',
base01: '#383830',
base02: '#49483e',
base03: '#75715e',
base04: '#a59f85',
base05: '#f8f8f2',
base06: '#f5f4f1',
base07: '#f9f8f5',
base08: '#f92672',
base09: '#fd971f',
base0A: '#f4bf75',
base0B: '#a6e22e',
base0C: '#a1efe4',
base0D: '#66d9ef',
base0E: '#ae81ff',
base0F: '#cc6633'
};
<JSONTree data={data} theme={theme} invertTheme={false} />
Result (Monokai theme, dark background):
Advanced Customization
<JSONTree data={data} theme={{
extend: theme,
// underline keys for literal values
valueLabel: {
textDecoration: 'underline'
},
// switch key for objects to uppercase when object is expanded.
// `nestedNodeLabel` receives additional arguments `expanded` and `keyPath`
nestedNodeLabel: ({ style }, nodeType, expanded) => ({
style: {
...style,
textTransform: expanded ? 'uppercase' : style.textTransform
}
})
}} />
Customize Labels for Arrays, Objects, and Iterables
You can pass getItemString
to customize the way arrays, objects, and iterable nodes are displayed (optional).
By default, it'll be:
<JSONTree getItemString={(type, data, itemType, itemString) =>
<Text>{itemType} {itemString}</Text>}
/>
But if you pass the following:
const getItemString = (type, data, itemType, itemString) =>
<Text>{type}</Text>;
Then the preview of child elements now look like this:
Customize Rendering
You can pass the following properties to customize rendered labels and values:
<JSONTree
labelRenderer={raw => <Text style={{ fontWeight: 'bold' }}>{raw}</Text>}
valueRenderer={raw => <Text style={{ fontStyle: 'italic' }}>{raw}</Text>}
/>
In this example the label and value will be rendered with bold and italic text respectively.
For labelRenderer
, you can provide a full path - see this PR.
More Options
shouldExpandNode: (keyName, data, level) => boolean
- determines if node should be expanded (root is expanded by default)hideRoot: boolean
- iftrue
, the root node is hidden.sortObjectKeys: boolean | (a, b) => number
- sorts object keys with compare function (optional). Isn't applied to iterable maps likeImmutable.Map
.
Credits
License
MIT