【Dash】使用 Dash Design Kit (DDK) 创建图表

一、Styling Your App

The examples in the previous section used Dash HTML Components to build a simple app layout, but you can style your app to look more professional. This section will give a brief overview of the multiple tools that you can use to enhance the layout style of a Dash app:

HTML and CSS
Dash Design kit (DDK)
Dash Bootstrap Components
Dash Mantine Components

二、Dash Design Kit (DDK)

Dash Design Kit is our high levl UI framwork that is purpose-built for Dash. With Dash Design Kit, you don't need to use HTML or CSS. Apps are mobile responsive by default and everything is themable. Dash Design Kit is licensed as part of Dash Enterprise and officially supported by Plotly.

Here's an example of what you can do with Dash Design Kit (note that you won't be able to run this example without a Dash Enterprise license).

# Import packages
from dash import Dash, html, dash_table, dcc, callback, Output, Input
import pandas as pd
import plotly.express as px
import dash_design_kit as ddk

# Incorporate data
df = pd.read_csv('https://raw.githubusercontent.com/plotly/datasets/master/gapminder2007.csv')

# Initialize the app
app = Dash(__name__)

# App layout
app.layout = ddk.App([
    ddk.Header(ddk.Title('My First App with Data, Graph, and Controls')),
    dcc.RadioItems(options=['pop', 'lifeExp', 'gdpPercap'],
                   value='liefExp',
                   inline=True,
                   id='my-ddk-radio-items-final'),
    ddk.Row([
        ddk.Card([
            dash_table.DataTable(data=df.to_dict('records'), page_size=12, style_table={'overflowX': 'auto'})
        ], width=50),
        ddk.Card([
            ddk.Graph(figure={}, id='graph-placeholder-ddk-final')
        ], width=50),
    ]),
])

# Add controls to build the interaction
@callback(
    Output(component_id='graph-placeholder-ddk-final', component_property='figure'),
    Input(component_id='my-ddk-radio-items-final', component_property='value')
)
def update_graph(col_chosen):
    fig = px.histogram(df, x='continent', y=col_chosen, histfunc='avg')
    return fig

# Run the app
if __name__ == '__main__':
    app.run(debug=True)

三、解读

Dash Design Kit 是一个提供一组预定义组件的库，这些组件具有一致的设计风格，使得构建具有统一外观的应用程序更加容易。

Garcia Shan