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如何在Android中以编程方式增加RAM使用率？

[英]How to increase RAM usage programmatically in Android?

原文 2019-06-23 11:05:29 3 1 java/ android/ memory/ ram

I need to increase RAM usage in Android programmatically to observe it changes in time. 我需要以编程方式增加Android中的RAM使用量，以便及时观察它的变化。 How can i do this? 我怎样才能做到这一点？

I tried to generate a lot of custom objects, but unexpectedly RAM usage decreases after generating it... I changed objects quantity, structure etc and nothing helps me. 我试图生成很多自定义对象，但是在生成它之后意外地降低了RAM的使用量......我改变了对象的数量，结构等，没有什么能帮助我。

I watch RAM usage in Android Profiler. 我在Android Profiler中观察RAM使用情况。

1 个解决方案

You can load images with higher resolution with big sizes. 您可以加载大尺寸更高分辨率的图像。 It's guaranteed to increase RAM usage which you can inspect using Android Profiler 保证增加RAM使用率，您可以使用Android Profiler进行检查
Use Custom Font in your app via libraries, like Calligraphy . 通过图书馆（如书法）在您的应用中使用自定义字体。 It should result in app memory increase. 它应该会导致应用内存增加。 The more additional Typefaces you use, the more memory it will start consuming, as stated in this closed issue of that library. 您使用的字体越多，它开始消耗的内存就越多，如该库的封闭式问题所述。
As the documentation says about how memory is counted, the Native memory from objects allocated from C or C++ code takes up a lot of memory. 正如文档中说明了如何计算内存，从C或C ++代码分配的对象的本机内存占用了大量内存。 As TypeFace are allocated in Native memory and it makes Native heap size large, hence RAM usage gets increased a lot. 由于TypeFace在Native内存中分配，并且它使Native堆大小变大，因此RAM使用量增加了很多。 Refer to this answer to an inquiry on why an app takes up more memory for exploring the reason. 请参阅此答案，了解为什么应用占用更多内存以探索原因。
Add ByteArrayInputStream and allocate MAX sizes. 添加ByteArrayInputStream并分配MAX大小。 It will keep the memory as long as it's not destroyed. 只要它没有被破坏，它就会保留记忆。