By default, the entire content of a box is stored in memory as soon as it is opened. This behavior is great for small and medium-sized boxes because you can access their contents without async calls.
For larger boxes or very memory critical applications, it may be useful to load values lazily. When a lazy box is opened, all of its keys are read and stored in memory. Once you access a value, Hive knows its exact position on the disk and gets the value.
var lazyBox = await Hive.openLazyBox('myLazyBox');
var value = await lazyBox.get('lazyVal');To get an already opened lazy box call:
var lazyBox = Hive.lazyBox('myLazyBox');