Android：如何在没有Broadcast Receiver for API 17级及以上的情况下获得电池状态？

Question

I want to get Battery status. I searched it on stack and i found the sample code using Broadcast Receiver but problem is that in my code i cannot use Broadcast Receiver.

So is there any way to get battery status without using Broadcast Receiver. It is possible for API 21 and above but i want it for API 17 and above. Thank you

Answer 1

Intent battery=registerReceiver(null, new IntentFilter(Intent.ACTION_BATTERY_CHANGED));

battery will contain the last-broadcast ACTION_BATTERY_CHANGED Intent , and its extras will contain the battery information, using the extra keys documented on BatteryManager .

(this code will work inside a method of a Context subclass; alternatively, call registerReceiver() on some other Context )