Summary:
Adds support for the `onProgress` event on `Image`, for Android.
Since Fresco does not provide a progress listener on `ControllerListener`, this uses a forwarding progress indicator `Drawable` to pass along values from `onLevelChange`.
Caveat: The ratio between `loaded` and `total` can be used, but `total` is currently always 10000. It seems that Fresco does not currently expose the content length from the network response headers.
Changelog:
[Android][Added] - Adds support for the `onProgress` event on `Image`
Reviewed By: mdvacca
Differential Revision: D22029915
fbshipit-source-id: 66174b55ed01e1a059c080e2b14415e7d268bc5c
Tim YungandFacebook GitHub Bot
fa0e6f8051