Checking for Photo Library access on iOS

[ymmtny]

I researched one month ago

iOS Permissions / How do I know if media.save( ) failed?

Looking back at this code, it looks like there’s a subtlety I forgot to mention. The first time you run an app after a fresh install, media.hasSource( media.PhotoLibrary ) would always return true. This is by design as iOS permissions have a “not determined” state that they’re initialized to when an app is run the first time. By returning true that first time, your Lua app could continue to whatever behavior needs permission, and the OS can request that permission when necessary.

The runtime source code does not handle an error when saving an image to PhotosAlbum

UIImageWriteToSavedPhotosAlbum( image, nil, nil, nil )

The callback (delegate) function is nil so it does not tell us it is failed or not.

UIImageWriteToSavedPhotosAlbum unable to callback to Lua

Hi there, I was wondering if anyone knows how I could send a message back to Lua in the completionSelector after calling UIImageWriteToSavedPhotosAlbum? Unfortunately the code below does not work, a bad memory access error is thrown when the success block is called in MyHelper imageSavedToCameraRoll function. The problem occurs when the code tries to access L in the block, I assume that L has been cleaned up and thrown away. Any advice would be greatly appreciated. PluginLibrary code (.mm): …