Question

I have an android app that uses alot of memory doing pixel manipulation. And what I have noticed is that android does not kill programs or free memory in favor of the foreground app. And my app just crashes with not enough memory errors. Right now I have it autodetect how much memory is left and scale pictures appropriately. This prevents crashes but results in poor image quality.

Is there a way to tell Android OS, free up memory as my app is memory hungry. From what I read from android, the OS should do this automatically. But it doesn t appear to do it. Maybe I m missing something? The iPhone seems as it handles this much better.

Answer 1

Android有硬 Java粒,各装置之间有差异。 24德国马克是一个典型数额。

因此,显而易见的工作是不要在贾瓦分配你的大物体......你可以用一种原住的C方法把我们的子午线 array。

However 24MB ought to be enough for anybody, to borrow a phrase, so I recommend you try to rethink your approach too. Perhaps be more aggressive about reusing bitmaps from a fixed-size pool, break your images up into smaller tiles, etc etc.

Answer 2

Avoid using getPixel() and setPixel() too much, it hence results in a really really bad performance, it s already mentioned on Android Documentation. Also, manage your own memory usage Java, Garbage Collector will function as long as you follow the rule.

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