How to render a picture through the data of Vec<u8>

[schizobulia]

What problem does this solve or what need does it fill?

I want to render the picture to ImageBundle through Vec

I'm not sure if I haven't found out how to use it, or I don't have this feature.

What solution would you like?

I hope UiImage can directly set up Vec

What alternative(s) have you considered?

No

Additional context

I expect it to be used in this way.

#[tokio::main]
pub async fn get_img_by_url(url: String) -> Result<Vec<u8>, reqwest::Error> {
    let response = reqwest::get(url).await?.bytes().await?;
    Ok(response.to_vec())
}

match get_img_by_url("xxx") {
    Ok(data) => {
        let img = UiImage {
            texture: data,
            ..Default::default()
         };
    }
   Err(e) => {
         println!("Get img failed: {:?}", e);
    }
}

[torsteingrindvik]

Here is some code I've used to take image data and create an image of it:

fn foo(assets: Res<AssetServer>, ..) {
    ..
    let image = Image::new( 
        Extent3d { width, height, depth_or_array_layers: 1 },
        TextureDimension::D2,
        data,
        bevy::render::render_resource::TextureFormat::Rgba8UnormSrgb,
        RenderAssetUsages::default(),
    );

    let image_handle: Handle<Image> = assets.add(image);

    // Can now use this handle in e.g. a standard material
}

Since you want UiImage and that has a field for Handle<Image> that should work.

Also the image creation needs data in the correct layout.
Here is one way I've gotten the above to work when using the Image crate:

let img = image::open(image_path).unwrap();
let img = img.resize(640, 480, image::imageops::FilterType::CatmullRom);
let data = img.into_rgba8().into_vec();

[schizobulia]

Thank you. This is my final realization.

match network::get_img_by_url(src.clone()) {
    Ok(data) => match image::load_from_memory(&data) {
        Ok(img) => {
            let i = Image::from_dynamic(img, true, RenderAssetUsages::default());
            img_bundle.image = UiImage {
                texture: asset_server.add(i),
                ..Default::default()
            }
        }
        Err(e) => {
            println!("Load img failed: {:?}", e);
        }
    },
    Err(e) => {
        println!("Get img failed: {:?}", e);
    }
};

[torsteingrindvik]

I wasn't aware the asset server could take images directly so thanks you too :-)