Google's definition of battery-draining apps centers around Android's "partial wake lock" mechanism. This service allows an app to keep the phone's processor running even while the screen is off. There are logical exceptions where apps do need this: audio playback, location access, etc. But the company apparently sees too many abusing that API for other reasons. And Google wouldn't want people to assume the problem is with the hardware and switch to an iPhone — because then we’re talking about money.
In most cases this isn’t much of a blocker for Nix users, but it does become a problem when you need to do something in Nix that isn’t provided as a builtin function in the language.
。PDF资料是该领域的重要参考
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曹阳表示，这恰恰是大包装乃至礼盒产品的难点所在——其本质是一门“视觉冲击与真实价值”的平衡术。一方面，大包装必须足够显眼，才能在春节的高密度陈列中被迅速选中；同时又要卡在消费者可接受的价格带里，确保“看起来划算”。