Note: This page describes an example listed in UI.

: Usage of AUI_DECLARATIVE_FOR to make an infinite lazy list.

This example demonstrates making an optimal infinite list. That is, when you infinitely scroll down to load new items, the older items are unloaded from memory.

The "loading" action is performed on a worker thread and a delay is simulated by AThread::sleep.

As a bonus, we've added a spinner to indicate that loading is in progress.

In this example, we've used functional style and decomposition technique instead of making custom view classes. The idea is hide the implementation specifics of myLazyList that makes a basic AView in return. The overall state of produced lazy list object is controlled by list model.

myLazyList is limited to specific type of model by intention. AUI does not provide some kind of generalization on its own. In fact, we're demonstrating the whole concept in less than 100 lines of code. You certainly can make a generalization that suits your project's needs.

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