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/*
* Copyright (C) 2006 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;
import android.app.Activity;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.BatteryManager;
import android.os.BatteryStats;
import android.os.Bundle;
import android.os.Handler;
import android.os.IPowerManager;
import android.os.Message;
import android.os.ServiceManager;
import android.os.SystemClock;
import android.text.format.DateUtils;
import android.widget.TextView;
import com.android.internal.app.IBatteryStats;
public class BatteryInfo extends Activity {
private TextView mStatus;
private TextView mPower;
private TextView mLevel;
private TextView mScale;
private TextView mHealth;
private TextView mVoltage;
private TextView mTemperature;
private TextView mTechnology;
private TextView mUptime;
private IBatteryStats mBatteryStats;
private IPowerManager mScreenStats;
private static final int EVENT_TICK = 1;
private Handler mHandler = new Handler() {
@Override
public void handleMessage(Message msg) {
switch (msg.what) {
case EVENT_TICK:
updateBatteryStats();
sendEmptyMessageDelayed(EVENT_TICK, 1000);
break;
}
}
};
/**
* Format a number of tenths-units as a decimal string without using a
* conversion to float. E.g. 347 -> "34.7", -99 -> "-9.9"
*/
private final String tenthsToFixedString(int x) {
int tens = x / 10;
// use Math.abs to avoid "-9.-9" about -99
return Integer.toString(tens) + "." + Math.abs(x - 10 * tens);
}
/**
*Listens for intent broadcasts
*/
private IntentFilter mIntentFilter;
private BroadcastReceiver mIntentReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
if (action.equals(Intent.ACTION_BATTERY_CHANGED)) {
int plugType = intent.getIntExtra("plugged", 0);
mLevel.setText("" + intent.getIntExtra("level", 0));
mScale.setText("" + intent.getIntExtra("scale", 0));
mVoltage.setText("" + intent.getIntExtra("voltage", 0) + " "
+ getString(R.string.battery_info_voltage_units));
mTemperature.setText("" + tenthsToFixedString(intent.getIntExtra("temperature", 0))
+ getString(R.string.battery_info_temperature_units));
mTechnology.setText("" + intent.getStringExtra("technology"));
mStatus.setText(Utils.getBatteryStatus(getResources(), intent));
switch (plugType) {
case 0:
mPower.setText(getString(R.string.battery_info_power_unplugged));
break;
case BatteryManager.BATTERY_PLUGGED_AC:
mPower.setText(getString(R.string.battery_info_power_ac));
break;
case BatteryManager.BATTERY_PLUGGED_USB:
mPower.setText(getString(R.string.battery_info_power_usb));
break;
case BatteryManager.BATTERY_PLUGGED_WIRELESS:
mPower.setText(getString(R.string.battery_info_power_wireless));
break;
case (BatteryManager.BATTERY_PLUGGED_AC|BatteryManager.BATTERY_PLUGGED_USB):
mPower.setText(getString(R.string.battery_info_power_ac_usb));
break;
default:
mPower.setText(getString(R.string.battery_info_power_unknown));
break;
}
int health = intent.getIntExtra("health", BatteryManager.BATTERY_HEALTH_UNKNOWN);
String healthString;
if (health == BatteryManager.BATTERY_HEALTH_GOOD) {
healthString = getString(R.string.battery_info_health_good);
} else if (health == BatteryManager.BATTERY_HEALTH_OVERHEAT) {
healthString = getString(R.string.battery_info_health_overheat);
} else if (health == BatteryManager.BATTERY_HEALTH_DEAD) {
healthString = getString(R.string.battery_info_health_dead);
} else if (health == BatteryManager.BATTERY_HEALTH_OVER_VOLTAGE) {
healthString = getString(R.string.battery_info_health_over_voltage);
} else if (health == BatteryManager.BATTERY_HEALTH_UNSPECIFIED_FAILURE) {
healthString = getString(R.string.battery_info_health_unspecified_failure);
} else if (health == BatteryManager.BATTERY_HEALTH_COLD) {
healthString = getString(R.string.battery_info_health_cold);
} else {
healthString = getString(R.string.battery_info_health_unknown);
}
mHealth.setText(healthString);
}
}
};
@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
setContentView(R.layout.battery_info);
// create the IntentFilter that will be used to listen
// to battery status broadcasts
mIntentFilter = new IntentFilter();
mIntentFilter.addAction(Intent.ACTION_BATTERY_CHANGED);
}
@Override
public void onResume() {
super.onResume();
mStatus = (TextView)findViewById(R.id.status);
mPower = (TextView)findViewById(R.id.power);
mLevel = (TextView)findViewById(R.id.level);
mScale = (TextView)findViewById(R.id.scale);
mHealth = (TextView)findViewById(R.id.health);
mTechnology = (TextView)findViewById(R.id.technology);
mVoltage = (TextView)findViewById(R.id.voltage);
mTemperature = (TextView)findViewById(R.id.temperature);
mUptime = (TextView) findViewById(R.id.uptime);
// Get awake time plugged in and on battery
mBatteryStats = IBatteryStats.Stub.asInterface(ServiceManager.getService(
BatteryStats.SERVICE_NAME));
mScreenStats = IPowerManager.Stub.asInterface(ServiceManager.getService(POWER_SERVICE));
mHandler.sendEmptyMessageDelayed(EVENT_TICK, 1000);
registerReceiver(mIntentReceiver, mIntentFilter);
}
@Override
public void onPause() {
super.onPause();
mHandler.removeMessages(EVENT_TICK);
// we are no longer on the screen stop the observers
unregisterReceiver(mIntentReceiver);
}
private void updateBatteryStats() {
long uptime = SystemClock.elapsedRealtime();
mUptime.setText(DateUtils.formatElapsedTime(uptime / 1000));
}
}
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