Hi, You are not actually turning on Bluetooth. You are just sending out an Intent that claims that Bluetooth is on, which the status bar receives and then turns on the Bluetooth icon.
Nick On Thu, Feb 19, 2009 at 12:40 AM, Stanley.lei <[email protected]> wrote: > > Hi Nick, > > Thanks for your reply. > > To turn on and off bluetooth, I use the following code from Android > source code, > > if (!System.putInt(etContentResolver(), System.BLUETOOTH_ON, state)) > { > Log.d(LOG_TAG, String.format("set bluetooth state to %d > failed", > state)); > return -1; > } > String action = state == 1 ? > ENABLED_ACTION : DISABLED_ACTION; > Intent intent = new Intent(action); > //sendBroadcast(intent, BLUETOOTH_PERM); > sendBroadcast(intent); > > and it works well, I could see the bt icon on the top the phone. And > the receiver is also from source code, what confuse me is why the > receiver doesn't work while enabling/disabling Bt works well since > they comes from same origination? > > Thanks, > > Stanley > > On Feb 19, 3:44 pm, Nick Pelly <[email protected]> wrote: >> There is no way to turn on and off bluetooth through the official SDK right >> now. >> >> Some apps have found ways to do this using hidden API's, and they are >> going to break when cupcake is released. >> >> Nick >> >> On Wed, Feb 18, 2009 at 10:47 PM, Stanley.lei <[email protected]> >> wrote: >> >> > Hi, >> >> > I wanna write an app to enable and disable the Bluetooth device >> > synchronized. Referring the Android source code, I registered >> > following receiver to receive the bluetooth state change event: >> >> > private static final String EXTENDED_BLUETOOTH_STATE_CHANGED_ACTION = >> >> > "com.android.settings.bluetooth.intent.action.EXTENDED_BLUETOOTH_STATE_CHANGED"; >> >> > private final BroadcastReceiver mReceiver = new BroadcastReceiver >> > () { >> > @Override >> > public void onReceive(Context context, Intent intent) { >> > String action = intent.getAction(); >> > if (action.equals >> > (EXTENDED_BLUETOOTH_STATE_CHANGED_ACTION)) { >> > Log.d(LOG_TAG, "bt state changed"); >> > ContentResolver resolver = context.getContentResolver >> > (); >> >> > // If bluetooth is currently expected to be on, then >> > enable or disable bluetooth >> > if (Settings.System.getInt(resolver, >> > Settings.System.BLUETOOTH_ON, 0) > 0) { >> > // do sth.... >> > } else { >> > // do sth... >> > } >> > } >> > } >> > }; >> >> > IntentFilter filter = new IntentFilter( >> > EXTENDED_BLUETOOTH_STATE_CHANGED_ACTION); >> > registerReceiver(mReceiver, filter); >> >> > But it doesn't work. Although the BT status has been changed (the icon >> > of BT has been appeared or disappeared), the receiver could not >> > receive nothing. >> >> > Could you give me any suggestion on this issue? It is tearing out my >> > hair. >> >> > Any reply will be appreciated. >> >> > Thanks, >> >> > Stanley >> >> > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~----------~----~----~----~------~----~------~--~---
