ChargerUtil.java

/*
 * Copyright (C) 2011 asksven
 *
 * 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.asksven.android.common.utils;

import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.BatteryManager;

/**
 * Helper to detect if charger is plugged
 * @author sven
 *
 */
public class ChargerUtil
{
	/**
	 * Returns true if the charger is currently connected
	 * @param context
	 * @return true if the charger is connected
	 */
	public static boolean isConnected(Context context)
	{
		// make a synchronous call
		Intent intent = context.registerReceiver(null, new IntentFilter(Intent.ACTION_BATTERY_CHANGED));
		int plugged = intent.getIntExtra(BatteryManager.EXTRA_PLUGGED, -1);
		return plugged == BatteryManager.BATTERY_PLUGGED_AC || plugged == BatteryManager.BATTERY_PLUGGED_USB;
	}
}