You have code that controls your screen, that controls your buttons, that controls your microphones, so even if I can't find the code for the battery, I bet I can find one of those things.
有控制手机屏幕的代码， 有控制按钮的，有控制耳机的， 因此，即使我发现不了控制电池的代码， 但我肯定能发现这么多相似代码中的一个。