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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2011 Thomas Martitz
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
package org.rockbox.monitors;
import java.util.Timer;
import java.util.TimerTask;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
public class BatteryMonitor extends BroadcastReceiver
{
private final IntentFilter mBattFilter;
private final Context mContext;
@SuppressWarnings("unused")
private int mBattLevel; /* read by native code */
/*
* We get literally spammed with battery status updates
* Therefore we actually unregister after each onReceive() and
* setup a timer to re-register in 30s */
public BatteryMonitor(Context c)
{
mBattFilter = new IntentFilter(Intent.ACTION_BATTERY_CHANGED);
mContext = c;
Timer t = new Timer();
TimerTask task = new TimerTask()
{
public void run()
{
attach();
}
};
t.schedule(task, 5000, 30000);
attach();
}
@Override
public void onReceive(Context arg0, Intent intent)
{
int rawlevel = intent.getIntExtra("level", -1);
int scale = intent.getIntExtra("scale", -1);
if (rawlevel >= 0 && scale > 0)
mBattLevel = (rawlevel * 100) / scale;
else
mBattLevel = -1;
mContext.unregisterReceiver(this);
}
void attach()
{
mContext.registerReceiver(this, mBattFilter);
}
}
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