Image

An image is a graphic representation of something (e.g photo or illustration).

Examples

Live example

Python

import flet as ft

def main(page: ft.Page):
    page.title = "Images Example"
    page.theme_mode = ft.ThemeMode.LIGHT
    page.padding = 50
    page.update()

    img = ft.Image(
        src=f"/icons/icon-512.png",
        width=100,
        height=100,
        fit=ft.ImageFit.CONTAIN,
    )
    images = ft.Row(expand=1, wrap=False, scroll="always")

    page.add(img, images)

    for i in range(0, 30):
        images.controls.append(
            ft.Image(
                src=f"https://picsum.photos/200/200?{i}",
                width=200,
                height=200,
                fit=ft.ImageFit.NONE,
                repeat=ft.ImageRepeat.NO_REPEAT,
                border_radius=ft.border_radius.all(10),
            )
        )
    page.update()

ft.app(target=main)

Properties

border_radius

Clip image to have rounded corners. See Container.border_radius for more information and examples.

color

If set, this color is blended with each image pixel using color_blend_mode.

color_blend_mode

Used to combine color with the image.

The default is BlendMode.COLOR. In terms of the blend mode, color is the source and this image is the destination.

See ShaderMask.blend_mode for possible blend mode values.

fit

How to inscribe the image into the space allocated during layout.

Property value is ImageFit enum with supported values: NONE (default), CONTAIN, COVER, FILL, FIT_HEIGHT, FIT_WIDTH, SCALE_DOWN.

gapless_playback

Whether to continue showing the old image (True), or briefly show nothing (False), when the image provider changes. The default value is False.

height

If set, require the image to have this height.

If not set, the image will pick a size that best preserves its intrinsic aspect ratio.

备注

It is strongly recommended that either both the width and the height be specified, or that the Image be placed in a context that sets tight layout constraints, so that the image does not change size as it loads. Consider using fit to adapt the image's rendering to fit the given width and height if the exact image dimensions are not known in advance.

src

Image URL. This could be an external URL, e.g. https://picsum.photos/200/200 or internal URL to reference app assets, e.g. /my-image.png.

You can specify assets_dir in flet.app() call to set the location of assets that should be available to the application. assets_dir could be a relative to your main.py directory or an absolute path. For example, consider the following program structure:

/assets
   /images/my-image.png
main.py

You can access your images in the application as following:

import flet as ft

def main(page: ft.Page):
    page.add(ft.Image(src=f"/images/my-image.png"))

flet.app(
    target=main,
    assets_dir="assets"
)

src_base64

Displays an image from Base-64 encoded string, for example:

import flet as ft

def main(page: ft.Page):
    page.add(ft.Image(src_base64="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"))

ft.app(target=main)

Use base64 command (Linux, macOS, WSL) to convert file to Base64 format, for example:

base64 -i <image.png> -o <image-base64.txt>

On Windows you can use PowerShell to encode string into Base64 format:

[convert]::ToBase64String((Get-Content -path "your_file_path" -Encoding byte))

repeat

How to paint any portions of the layout bounds not covered by the image.

Property value is ImageRepeat enum with supported values: NO_REPEAT (default), REPEAT, REPEAT_X, REPEAT_Y.

semantics_label

A semantics label for this image.

tooltip

The text displayed when hovering a mouse over the Image.

width

If set, require the image to have this width.

If not set, the image will pick a size that best preserves its intrinsic aspect ratio.

备注

It is strongly recommended that either both the width and the height be specified, or that the Image be placed in a context that sets tight layout constraints, so that the image does not change size as it loads. Consider using fit to adapt the image's rendering to fit the given width and height if the exact image dimensions are not known in advance.