如何获取所有正在运行的应用程序的总内存使用量？基本上，我想知道内存使用率是否大于30%或更高。
根据Rafael的建议，您可以使用内存类。更具体地说，您可以使用以下方法来帮助您：
Memory.getRAMStats().getFree();
Memory.getRAMStats().getAllocated());
如果你在数学上比较这两者，你可以从中得到百分比。
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