Files
app_Settings/src/com/android/settings/BatteryInfo.java
Imre Sunyi 524146698f Support showing "Cold" battery health.
The Linux kernel supports reporting "cold" battery health to sysfs.
Android framework has not implemented this and it defaults to "unknown"
This adds handling the cold battery health.

Change-Id: Idfc7029fabcdfdaaf2b5c95977c11e0eb3fd76a7
2010-09-20 18:02:28 +02:00

205 lines
8.4 KiB
Java

/*
* 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.Bundle;
import android.os.Handler;
import android.os.IPowerManager;
import android.os.Message;
import android.os.RemoteException;
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"
*/
private final String tenthsToFixedString(int x) {
int tens = x / 10;
return Integer.toString(tens) + "." + (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"));
int status = intent.getIntExtra("status", BatteryManager.BATTERY_STATUS_UNKNOWN);
String statusString;
if (status == BatteryManager.BATTERY_STATUS_CHARGING) {
statusString = getString(R.string.battery_info_status_charging);
if (plugType > 0) {
statusString = statusString + " " + getString(
(plugType == BatteryManager.BATTERY_PLUGGED_AC)
? R.string.battery_info_status_charging_ac
: R.string.battery_info_status_charging_usb);
}
} else if (status == BatteryManager.BATTERY_STATUS_DISCHARGING) {
statusString = getString(R.string.battery_info_status_discharging);
} else if (status == BatteryManager.BATTERY_STATUS_NOT_CHARGING) {
statusString = getString(R.string.battery_info_status_not_charging);
} else if (status == BatteryManager.BATTERY_STATUS_FULL) {
statusString = getString(R.string.battery_info_status_full);
} else {
statusString = getString(R.string.battery_info_status_unknown);
}
mStatus.setText(statusString);
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_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("batteryinfo"));
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));
}
}