Bug in Android code, referenced in readme

[gmale]

Your project was the first helpful example I found of what I'm trying to accomplish so I figured I'd circle back and try to return the favor of being helpful.

In the android readme, you mention:

Actually, my codes have something wrong, so this listener never called 😇

This is because you did not add your imageReader surface to the previewRequestBuilder. It's good that you include it in the capture session but it needs to ALSO be in the preview request:

MLKitSample/Android/app/src/main/java/net/kboy/mlkitsample/MainActivity.kt

Line 69 in e869d38

previewRequestBuilder.addTarget(surface)

I'm still figuring all this out and I don't have it completely working yet but this S.O. answer is helping me sort through how to get image data from the preview and feed it over to a firebase detector. I hope that helps!