Android Battery信息，是否未注册广播接收器？

Question

Is there any way to use BatteryManager (or something similar) to get information about the battery charge level and state WITHOUT registering a broadcast receiver??

I basically want to send battery info (amongst other things) to my server upon the push of a button. Just once. Is this possible??

Thanks!

Answer 1

On some likely Context (eg, the Activity with the button in question), call:

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

The Intent you get back will be the last broadcast for this action, as ACTION_BATTERY_CHANGED is a sticky broadcast. You would then read the extras out of the returned Intent , as if you had received it via a BroadcastReceiver . However, since you are passing null as the receiver, you are not registering to receive broadcasts over time.