关于Adobe Scout查看信息中的"Decompressing images"解压缩图片

在使用Adobe Scout的时候，查看具体的执行处理日志信息，里面有这样的一条详细

Decompressing images
就是在用Loader加载图片的时候，解压缩图片信息，这一步耗费了些CPU，查看了下Adobe的社区

如下写道

Hi Laboratory Grey,

Thanks for the feedback, happy to hear you like Scout!

For your issue, I would recommend you using a different policy when loading your images with AIR. Lots of people dont know, but there is a way to load expensive images in a background thread, so that it does not impact your UI at all, which is exactly what you are looking for I think. To do this, it is very easy, pass a LoaderContext object to your load() call when using Loader and use ImageDecodingPolicy.ON_LOAD, your code should look like this:

var loaderContext:LoaderContext = new LoaderContext();
var loader:Loader = new Loader();
loaderContext.imageDecodingPolicy = ImageDecodingPolicy.ON_LOAD;
loader.load(new URLRequest("yourimage.png"), loaderContext);

Let me know, it should help!

Thibault Imbert
Sr. Product Manager | Adobe Scout
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就是在Loader的load时候，添加一下这一句
loaderContext.imageDecodingPolicy = ImageDecodingPolicy.ON_LOAD;

API中解释意思就是：
指定正在加载的图像将在发送 complete 事件之前进行加载时解码