It will be documented in Eclair. On Sun, Sep 20, 2009 at 11:22 PM, Walles <johan.wal...@gmail.com> wrote:
> > Is this documented anywhere? I looked here... > http://developer.android.com/reference/android/os/BatteryManager.html > > ... but AFAICS there's nothing about 0 meaning "unplugged". > > What you're suggesting *is* what I'm after, but I'm unwilling to use > undocumented API features since they risk disappearing without notice. > > Regards //Johan > > On 19 Sep, 22:29, Dianne Hackborn <hack...@android.com> wrote: > > What do you mean by "in use"? You can find out whether you are attached > to > > a power source with the "plugged" field (0 means not plugged in / on > > battery, non-zero is the power source), which is generally what things > use > > to determine whether the device is plugged in (so it is okay to do more > > power drawing operations). > > > > > > > > On Sat, Sep 19, 2009 at 12:42 PM, Walles <johan.wal...@gmail.com> wrote: > > > > > Thanks Mark, that was the hint I needed. > > > > > What I really wanted to know was whether or not the battery was > > > currently in use, and for anybody else following this thread, here's > > > the method I came up with: > > > > > " > > > /** > > > * Is the battery currently discharging? > > > * > > > * @return True if our battery is discharging. False otherwise. > > > */ > > > private boolean isDischarging() { > > > // Contact the battery manager > > > Intent batteryIntent = > > > registerReceiver(null, new IntentFilter > > > (Intent.ACTION_BATTERY_CHANGED)); > > > if (batteryIntent == null) { > > > Log.w(DrainOMeter.LOGGING_TAG, > > > "Failed to talk to the battery manager, assuming > > > we're on battery power"); > > > return true; > > > } > > > > > // Ask about battery charging status > > > int batteryStatus = BatteryManager.BATTERY_STATUS_UNKNOWN; > > > if (batteryIntent != null) { > > > batteryStatus = > > > batteryIntent.getIntExtra("status", > > > > > BatteryManager.BATTERY_STATUS_UNKNOWN); > > > } > > > if (batteryStatus == BatteryManager.BATTERY_STATUS_UNKNOWN) { > > > Log.w(DrainOMeter.LOGGING_TAG, > > > "Failed to get battery charging status, assuming > > > we're on battery power"); > > > return true; > > > } > > > > > return batteryStatus == > > > BatteryManager.BATTERY_STATUS_DISCHARGING; > > > } > > > " > > > > > Cheers //Johan > > > > > On 18 Sep, 11:54, Mark Murphy <mmur...@commonsware.com> wrote: > > > > Walles wrote: > > > > > I want to know if my device is currently charging. > > > > > > > How do I find that out? I've been looking a bit at the Intents > API, > > > > > but AFAIU I can just subscribe to events from there, and a > > > > > subscription is not what I'm after. And even if I *did* want > updates, > > > > > I'd still need to know the initial state. > > > > > > > I just want to ask a one-shot "are we charging" question. How can > I > > > > > do that? > > > > > > Register for the broadcast Intent with a null receiver. If you get a > > > > non-null return value, then that return value is an Intent from the > last > > > > "sticky broadcast" matching your supplied IntentFilter. I believe the > > > > battery updates are such a sticky broadcast. By passing null for the > > > > receiver, you do not actually register a receiver and so do not need > to > > > > unregister anything later. > > > > > > For more instructions on this, look up registerReceiver() in the > Context > > > > class (which is a base class for Activity, Service, etc.). > > > > > > -- > > > > Mark Murphy (a Commons Guy)http://commonsware.com| > > >http://twitter.com/commonsguy > > > > > > _The Busy Coder's Guide to *Advanced* Android Development_ > > > > Version 1.1 Available! > > > > -- > > 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. > > > -- 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 Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~----------~----~----~----~------~----~------~--~---
