src/com/android/settings/bluetooth/BluetoothDiscoveryReceiver.java

/*
 * Copyright (C) 2011 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.android.settings.bluetooth;

import android.bluetooth.BluetoothAdapter;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.util.Log;

import com.android.settingslib.bluetooth.BluetoothEventManager;

/**
 * BluetoothDiscoveryReceiver updates a timestamp when the
 * Bluetooth adapter starts or finishes discovery mode. This
 * is used to decide whether to open an alert dialog or
 * create a notification when we receive a pairing request.
 *
 * <p>Note that the discovery start/finish intents are also handled
 * by {@link BluetoothEventManager} to update the UI, if visible.
 */
public final class BluetoothDiscoveryReceiver extends BroadcastReceiver {
    private static final String TAG = "BluetoothDiscoveryReceiver";

    @Override
    public void onReceive(Context context, Intent intent) {
        String action = intent.getAction();
        Log.v(TAG, "Received: " + action);

        if (action.equals(BluetoothAdapter.ACTION_DISCOVERY_STARTED) ||
                action.equals(BluetoothAdapter.ACTION_DISCOVERY_FINISHED)) {
            LocalBluetoothPreferences.persistDiscoveringTimestamp(context);
        }
    }
}