Preloads a list of asset URLs (images via Image(), others via fetch()).
Returns loaded (all done), progress (0-100), and failedAssets (URLs
that failed to load). Failed assets still count toward progress so the hook
always reaches 100 % — check failedAssets.length to decide how to react.
Preloads a list of asset URLs (images via
Image(), others viafetch()).Returns
loaded(all done),progress(0-100), andfailedAssets(URLs that failed to load). Failed assets still count toward progress so the hook always reaches 100 % — checkfailedAssets.lengthto decide how to react.