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On this page
  • Introduction
  • Function signature
  • Parameters
  • title
  • description
  • box_type
  • widget_id
  • Methods and attributes
  • Mini App Example
  • Import libraries
  • Init API client
  • Initialize NotificationBox widget
  • Create app layout
  • Create app using layout
  • Add functions to control widgets from python code

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  1. App development
  2. Widgets
  3. Status Elements

NotificationBox

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Last updated 2 years ago

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Introduction

NotificationBox is a widget to display messages to the user. It immediately attracts the user's attention and can be used to inform the user about important events, such as the successful completion of a task, errors during execution, or the need to make adjustments to the annotation. NotificationBox supports various levels of messages, such as informational, success, warning, and error.

Function signature

note_box = NotificationBox(
    title="Notification Box",
    description="Lorem ipsum dolor sit amet...",
    box_type="info",
    widget_id=None
)

Parameters

Parameters
Type
Description

title

str

Main title of notification box

description

str

Description text

box_type

Literal["success", "info", "warning", "error"]

Notification box style

widget_id

str

ID of the widget

title

Main title of notification box

type: str

default value: None

note_box = NotificationBox(title="Notification Box")

description

Description text

type: str

default value: None

note_box = NotificationBox(description="Lorem ipsum dolor sit amet...")

box_type

Parameter to change notification style

type: Literal["success", "info", "warning", "error"]

default value: "info"

note_box_success = NotificationBox(
    title="Box type: SUCCESS",
    description="Lorem ipsum dolor sit amet... anim id est laborum.",
    box_type="success"
)

note_box_info = NotificationBox(
    title="Box type: INFO",
    description="Lorem ipsum dolor sit amet... anim id est laborum.",
    box_type="info"
)

note_box_warning = NotificationBox(
    title="Box type: WARNING",
    description="Lorem ipsum dolor sit amet... anim id est laborum.",
    box_type="warning"
)

note_box_warning = NotificationBox(
    title="Box type: WARNING",
    description="Lorem ipsum dolor sit amet... anim id est laborum.",
    box_type="warning"
)

note_box_error = NotificationBox(
    title="Box type: ERROR",
    description="Lorem ipsum dolor sit amet... anim id est laborum.",
    box_type="error"
)

widget_id

ID of the widget.

type: str

default value: None

Methods and attributes

Attributes and Methods
Description

title

Get or set notification box title property.

description

Get or set notification box description property.

set(title: str, description: str)

Set title and description properties.

Mini App Example

You can find this example in our Github repository:

Import libraries

import os
from time import sleep

import supervisely as sly
from dotenv import load_dotenv
from supervisely.app.widgets import Button, Card, Container, Flexbox, NotificationBox

Init API client

First, we load environment variables with credentials and init API for communicating with Supervisely Instance:

load_dotenv("local.env")
load_dotenv(os.path.expanduser("~/supervisely.env"))

api = sly.Api()

Initialize NotificationBox widget

In this tutorial we will use 4 types of notification box.

note_box_info = NotificationBox()
note_box_info.hide() # hide widget (you can show it later)

note_box_success = NotificationBox(title="Finished.", box_type="success")
note_box_success.hide()

note_box_error = NotificationBox(title="Error.", box_type="error")
note_box_error.hide()

note_box_warning = NotificationBox(title="Warning.", box_type="warning")
note_box_warning.hide()

Create app layout

For 1 example we will create project and show notication with info box type

step_1_btn = Button(text="INFO", button_type="info")

For 2 example we will use Progress widget and show success box type notification.

progress_bar = sly.app.widgets.Progress()

step_2_btn = Button(text="SUCCESS", button_type="success")
step_2 = Container(widgets=[note_box_success, step_2_btn])

Create buttons for error and warning box type notifications.

step_3_btn = Button(text="ERROR", button_type="danger")
step_3 = Container(widgets=[note_box_error, step_3_btn])

step_4_btn = Button(text="WARNING", button_type="warning")
step_4 = Container(widgets=[note_box_warning, step_4_btn])

Prepare a layout for app using Card widget with the content parameter and place widgets that we've just created in the Container or Flexbox widgets.

step_1_container = Container(widgets=[step_1_btn, note_box_info])

notes_container = Flexbox(widgets=[note_box_success, note_box_error, note_box_warning])
btns_container = Container(
    widgets=[step_2_btn, step_3_btn, step_4_btn],
    direction="horizontal",
)

progress_container = Container(widgets=[btns_container, progress_bar, notes_container])

container = Container(
    widgets=[step_1_container, progress_container],
    direction="horizontal",
)

card = Card(
    title="Notification Box",
    content=container,
)
layout = Container(widgets=[card])

Create app using layout

Create an app object with layout parameter.

app = sly.Application(layout=layout)

Add functions to control widgets from python code

@step_1_btn.click
def create_project_and_dataset():
    project = api.project.create(
        workspace_id=workspace_id,
        name="New project",
        type=sly.ProjectType.IMAGES,
        change_name_if_conflict=True,
    )

    if project is not None:
        note_box_info.set(
            title="New project and dataset created.",
            description=f"Project ID: {project.id}).",
        )
        note_box_info.show()


@step_2_btn.click
def start_progress():
    note_box_warning.hide()
    note_box_error.hide()
    with progress_bar(message="Processing items...", total=5) as pbar:
        for _ in range(5):
            sleep(1)
            pbar.update(1)

    note_box_success.show()


@step_3_btn.click
def show_error():
    note_box_success.hide()
    note_box_warning.hide()
    note_box_error.show()


@step_4_btn.click
def show_warning():
    note_box_success.hide()
    note_box_error.hide()
    note_box_warning.show()

🔥
ui-widgets-demos/status elements/002_notification_box/src/main.py