I do that massively to extract such images from HTML in a Compose desktop app. I use the following c...

# compose-ios

[Michael Paus]

I do that massively to extract such images from HTML in a Compose desktop app. I use the following code to get the encoded bytes which assumes that all images are PNGs but you get the point:

val PNG_BASE64_HEADER = "data:image/png;base64,"

@OptIn(ExperimentalEncodingApi::class)
private fun resolveImage(imgBase64: String?): ByteArray? {
	try {
		return imgBase64?.let {
			if (it.startsWith(PNG_BASE64_HEADER)) {
				Base64.Default.decode(it.replaceFirst(PNG_BASE64_HEADER,""))
			} else {
				log.debug { "Unknown image format: '${imgBase64.take(20)}'" }
				null
			}
		}
	} catch (e: Exception) {
		throw Exception("Could not resolve image from base 64 string.", e)
	}
}

You can then get the image via:

Image.makeFromEncoded(encodedImageData).toComposeImageBitmap()

[ribesg]

A simple if (imgBase64 == null) return null on the first line of this function would make it much easier to read