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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;
public 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();
}
}
}
}
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