How 2 Sort Lightroom Images for iPhone
As many photographers know, using two Digital Asset Managers (DAM) can be problematic, if not downright painful. I long ago abandoned Apples iPhoto and Photos app, and have been using Lightroom for 8 years or so. A great application.
A problem arrises however when you want to sync to your iPhone from iTunes and maintain a user defined sort order. I finally found a solution using the export feature of LR.
Since I do not use Apples DAM... Photos, I publish files to a folder on my desktop named iPhone. iTunes make use of this folder to sync within iTunes.
The method to maintain a user sort order from LR is to use the export feature in LR.
Create and gather your images into a collection. Order or sort the images you want, if need be, choose User Order from the sort pulldown in LR.
Select all, and choose Export from the file menu. Configure the export window to Rename files using a sequence numbering system, i.e. 100, 101, 102, etc. Choose the pixel size you wish and configure other settings as you please. Export to a folder you have designated as your "sync" folder on your desktop. Name the folder as desired. Save this configuration for future use by clicking on "add" at bottom left of the pane and name it. Click export.
Launch iTunes, find your device, go to Photos pane, select your folder on the desktop, configure as necessary, and then sync. Upon completion, check the device in Photos app and look in albums to see your images and hopefully in the correct sort order. (Note that I have LR set to overwrite filenames without warning, it is best to overwrite the files rather than any kind of additive solution.