Hi Dianne, Thanks a lot for your help. According to the reply from Yi Sun: >>>>Look into the update() method in BatteryService.java. You may be able to >>>>solve the issue by register for BATTERY_CHANGED. But, it only be sent >>>>out when the battery status is changed. Not sure if it is good for you >>>>or not. I checked the source code of com.android.server.BatteryService#update (), yes, the update method first call native_update(), then check for the status, if some status field changed, then sendIntent() will be invoked to broadcast. My question is "does that mean I can not get the battery information in real-time?", I mean if I launch the application at 00:00:00, then return to home screen, then relaunch it at 00:00:30, then maybe none of the status changed, does that mean I can not get any status information?
Thanks. On May 26, 3:16 pm, Dianne Hackborn <hack...@android.com> wrote: > On Mon, May 25, 2009 at 8:12 PM, zhangxiyuan <zhangzho...@gmail.com> wrote: > > And I have three other questions: > > 1. Which apis will be included in the sdk public api? Is there any > > description about it? > > The official public SDK is only the things described here: > > http://developer.android.com/reference/packages.html > > And yes, @hide is used to keep classes and methods out of the SDK. > > 2. I modified the com.android.settings.BatteryInfo activity to another > > > activity, delete all the api invocation to the non-public api, > > I can still get the battery information such as level, scale, ... > > so, I think what I really need to do is just impelement the > > BroadcastReceiver, and registerReceiver in the onCreate or onResume > > methods. > > Is that right? > > Yes, as I said, most of the information is sent as a sticky broadcast. > > > 3. I do not have a real android-based phone, so I just run the > > application on the emulator, I got the following information all the > > time: > > Battery status: Charging (AC) > > Battery level: 50 > > Battery scale: 100 > > Battery health: Good > > Battery voltage: 0 mV > > Battery temperature: 0.0°C > > Battery technology: Li-ion > > I wonder how can I get different information by changing some > > configurations of the emulator? > > Sorry can't help with that. > > -- > Dianne Hackborn > Android framework engineer > hack...@android.com > > Note: please don't send private questions to me, as I don't have time to > provide private support, and so won't reply to such e-mails. All such > questions should be posted on public forums, where I and others can see and > answer them. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "android-framework" group. To post to this group, send email to android-framework@googlegroups.com To unsubscribe from this group, send email to android-framework+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-framework?hl=en -~----------~----~----~----~------~----~------~--~---
