电池信息测试

   

通过电话测试指令：*#*#4636#*#*

中可以看出： 在setting中有代码：BatteryInfo.java

    com.android.settings.BatteryInfo

/* * 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 {                    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));            }    }