| package com.android.bluetooth.btservice; |
| |
| import android.bluetooth.BluetoothAdapter; |
| import android.content.BroadcastReceiver; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.IntentFilter; |
| import android.database.ContentObserver; |
| import android.os.Handler; |
| import android.provider.Settings; |
| |
| /** |
| * This helper class monitors the state of the enabled profiles and will update and restart |
| * the adapter when necessary. |
| */ |
| public class ProfileObserver extends ContentObserver { |
| private Context mContext; |
| private AdapterService mService; |
| private AdapterStateObserver mStateObserver; |
| |
| public ProfileObserver(Context context, AdapterService service, Handler handler) { |
| super(handler); |
| mContext = context; |
| mService = service; |
| mStateObserver = new AdapterStateObserver(this); |
| } |
| |
| public void start() { |
| mContext.getContentResolver() |
| .registerContentObserver( |
| Settings.Global.getUriFor(Settings.Global.BLUETOOTH_DISABLED_PROFILES), |
| false, this); |
| } |
| |
| private void onBluetoothOff() { |
| mContext.unregisterReceiver(mStateObserver); |
| Config.init(mContext); |
| mService.enable(); |
| } |
| |
| public void stop() { |
| mContext.getContentResolver().unregisterContentObserver(this); |
| } |
| |
| @Override |
| public void onChange(boolean selfChange) { |
| if (mService.isEnabled()) { |
| mContext.registerReceiver(mStateObserver, |
| new IntentFilter(BluetoothAdapter.ACTION_STATE_CHANGED)); |
| mService.disable(); |
| } |
| } |
| |
| private static class AdapterStateObserver extends BroadcastReceiver { |
| private ProfileObserver mProfileObserver; |
| |
| AdapterStateObserver(ProfileObserver observer) { |
| mProfileObserver = observer; |
| } |
| |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| if (BluetoothAdapter.ACTION_STATE_CHANGED.equals(intent.getAction()) |
| && intent.getIntExtra(BluetoothAdapter.EXTRA_STATE, -1) |
| == BluetoothAdapter.STATE_OFF) { |
| mProfileObserver.onBluetoothOff(); |
| } |
| } |
| } |
| } |