Final variables

Hi,

Thanks for the sample code. It's really good to get an example from you to how to use ML-kit.

I'm not quite sure about what does the following lines for. For me it seems they are not used. Would you please explain me what is the purpose of these lines?

https://github.com/googlecodelabs/mlkit-android/blob/956ddd1f7ce3bad74dc259baf1660f5351bb726b/vision/final/app/src/main/java/com/google/codelab/mlkit/MainActivity.java#L72

https://github.com/googlecodelabs/mlkit-android/blob/956ddd1f7ce3bad74dc259baf1660f5351bb726b/vision/final/app/src/main/java/com/google/codelab/mlkit/MainActivity.java#L73

https://github.com/googlecodelabs/mlkit-android/blob/956ddd1f7ce3bad74dc259baf1660f5351bb726b/vision/final/app/src/main/java/com/google/codelab/mlkit/MainActivity.java#L75

Thx,
D

Open vision/final/app/src/main/java/com/google/codelab/mlkit/MainActivity.java and inspect lines 72–75, along with nearby references to those declarations. Determine whether the codelab needs explanatory documentation or a code change; done means the question about the lines has a clear, documented resolution.

Written by the indexing model from the issue text.