Android 位图内存使用
我正在运行一堆图像过滤器，似乎遇到了一些内存问题。
在图像处理开始时，我使用了这么多内存：
GC_FOR_MALLOC freed 3K, 45% free 3237K/5831K, external 47586K/49634K, paused 17ms
最后我使用了这么多内存（在所有处理完成之后）：
GC_EXTERNAL_ALLOC freed 5K, 16% free 16056K/18951K, external 51430K/52196K, paused 23ms
完成每个位图后，我将其设置为回收并设置为空：
someBitmap.recycle();
someBitmap = null;
还有其他吗我应该对他们做什么？我应该对正在使用的画布进行任何清理吗？
另外，我的过滤器是实例化的对象，例如：
BoxBlurFilter blurFilter = new BoxBlurFilter();
我应该做什么来释放它们？在用“new”分配的iOS内存中，我负责释放。
对于一些琐碎的内存管理问题，我深表歉意，但我对 Android 开发还很陌生，事情与 iOS 有很大不同。
谢谢你！
编辑2，我删除了完整的过滤器代码。
I am running a stack of image filters and seem to be hitting some memory issues.
At the beginning of the image processing I am using this much memory:
GC_FOR_MALLOC freed 3K, 45% free 3237K/5831K, external 47586K/49634K, paused 17ms
At the end I am using this much (after all processing is finished):
GC_EXTERNAL_ALLOC freed 5K, 16% free 16056K/18951K, external 51430K/52196K, paused 23ms
After I am finished with each bitmap I set it to recycle and to null:
someBitmap.recycle();
someBitmap = null;
Is there anything else I should be doing to them? Is there any cleanup I should do to the Canvas being used?
Also my filters are objects instantiated like:
BoxBlurFilter blurFilter = new BoxBlurFilter();
Is there anything I should do to release them? In iOS memory allocated with "new" I am responsible to free.
Sorry for the trivial memory management questions, but I am quite new to Android dev and things are quite different than iOS.
Thank you!
EDIT 2, I removed my full filter code.
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因此，在将过滤器实例设置为 null 并将所有字节数组设置为 null（在上面的代码和过滤器对象中）之后，我现在的堆大小与运行过滤器之前的堆大小大致相同：
这意味着它从 16mb 变为习惯了3.2mb。好多了！
所以我想我的问题的答案是，如果您希望释放它，请确保将所有内容设置为空。
So after setting the filter instances to null and all the byte arrays to null (in the code above and in the filter objects) I now have approximately the same size heap as I did before I run the filter:
That means it went from 16mb being used to 3.2mb. Much better!
So I guess the answer to my question is make sure you set everything to null if you want it to be freed.