我们有包含许多 ItemRenderer 的 Spark dataGrid。我们每次加载超过 200 行。这会导致我们的应用程序发生内存泄漏。那么有什么方法可以释放 ItemRenderers 吗？
分析时问题几乎与此相似
实例不断增加，我使用 arrayCollection 作为数据提供者。我什至调用 dataprovider (arrayCollection) .removeAll() 并且显示变为空白，但 itemRenderer 的实例数并没有下降。然后我在分析器中运行垃圾收集器，项目渲染器仍然保留在内存中。如何从内存中删除 itemRenderers？
make sure your item renderers do not use event handlers in the mxml, as mxml event handlers do not use weak references and thus never get GCed.
For example: I had an itemrenderer component in mxml that looked like <s:ItemRenderer creationComplete="OnCreationComplete">
instead I created a base class: public class ItemRendererBase extends ItemRenderer and in the constructor added the event listener this.addEventListener(FlexEvent.CreationComplete, OnCreationComplete, false, 0, true)
for sub component event handlers such as <s:Button click="OnClickButton"/> remove the inline event wiring and instead wire the event handler in your override OnCreationComplete with false, 0, true to use a weak reference.
also make sure you manually invoke the GC collection for testing this and I recomend using adobe scout