我需要帮助在 OpenFlow 中获取数据源。我
想在手机水平转动时提供 CoverFlow 功能。我正在使用 Alex Fajkowski 的出色代码 OpenFlow ( http://fajkowski.com/blog/2009/08/02/openflow-a-coverflow-api-replacement-for-the-iphone/ ）但提供的示例与我需要什么。
我在导航栏视图控制器内的水平视图中使用 OpenFlow。我已经让 OpenFlow 工作了。我可以滚动浏览所有图像并且效果非常好。然而，我用它来处理 100 多张图像，一开始加载需要一段时间。在研究性能改进时，我意识到 AFOpenFlowViewDataSource 委托没有被调用。我能够通过在视图控制器类“flowView.dataSource = self;”中指定委托来使 AFOpenFlowViewDelegate 工作。但我无法让数据源委托工作。即使使用“flowView.viewDelegate = self;”也不行。
是否需要数据源？看来加载线程需要它。
I need help getting dataSource in OpenFlow. I
I want to provide CoverFlow functionality whenever the phone is turned horizontally. I'm using Alex Fajkowski's awesome code OpenFlow ( http://fajkowski.com/blog/2009/08/02/openflow-a-coverflow-api-replacement-for-the-iphone/ ) but the example provided is very different than what I need.
I am using OpenFlow in a horizontal view inside a navbar view controller. I have OpenFlow working already. I can scroll through all my images and works really good. However I am using it with over 100 images and it takes a while to load at first. In looking into performance improvements I realized the AFOpenFlowViewDataSource delegate is not getting called. I was able to get AFOpenFlowViewDelegate working by specifying the delegate in the view controller class "flowView.dataSource = self;". But I am not able to get the datasource delegate working. Not even with "flowView.viewDelegate = self;".
Is the datasource needed at all? It seems it is needed for threading of loading.
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好吧，看起来现在运行得很漂亮。仅当动态加载对象时才调用 DataSource 委托。意思是，如果我使用“
[(AFOpenFlowView *)self.view setImage]”，那么 dataSOurce 永远不会被调用，因为它知道的所有图像都已加载。但是，使用“[(AFOpenFlowView *)self.view setNumberOfImages:30];”会触发 DataSource 委托根据需要加载图像。我发现GetImageOperationNSThread对于我的 100 多张图像非常有用。但是，图像在离开屏幕后不会被卸载。有人知道如何在图像离开屏幕时将其卸载吗？Ok, it looks like it is running beautiful now. The DataSource delegate is only called when there the objects are loaded dynamically. Meaning, if I use "
[(AFOpenFlowView *)self.view setImage]" then dataSOurce is never called because all it knows images are already loaded. However, using "[(AFOpenFlowView *)self.view setNumberOfImages:30];" triggers the DataSource delegate to load the images as they are needed. I found theGetImageOperationNSThreadvery useful for my 100+ images. However, images are not unloaded after going offscreen. Anyone know how to unload images as they go off screen?