// 电池状态
import static android.os.BatteryManager.EXTRA_STATUS;
// 未知
import static android.os.BatteryManager.BATTERY_STATUS_UNKNOWN;
// 充电中
import static android.os.BatteryManager.BATTERY_STATUS_CHARGING;
// 放电中
import static android.os.BatteryManager.BATTERY_STATUS_DISCHARGING;
// 未充电
import static android.os.BatteryManager.BATTERY_STATUS_NOT_CHARGING;
// 电池满
import static android.os.BatteryManager.BATTERY_STATUS_FULL;
// 电池健康情况
import static android.os.BatteryManager.EXTRA_HEALTH;
// 未知
import static android.os.BatteryManager.BATTERY_HEALTH_UNKNOWN;
// 良好
import static android.os.BatteryManager.BATTERY_HEALTH_GOOD;
// 过热
import static android.os.BatteryManager.BATTERY_HEALTH_OVERHEAT;
// 没电
import static android.os.BatteryManager.BATTERY_HEALTH_DEAD;
// 未知错误
import static android.os.BatteryManager.BATTERY_HEALTH_UNSPECIFIED_FAILURE;
// 过电压
import static android.os.BatteryManager.BATTERY_HEALTH_OVER_VOLTAGE;
// 温度过低
import static android.os.BatteryManager.BATTERY_HEALTH_COLD;
// 充电类型
import static android.os.BatteryManager.EXTRA_PLUGGED;
// 充电器
import static android.os.BatteryManager.BATTERY_PLUGGED_AC;
// 其他
import static android.os.BatteryManager.BATTERY_PLUGGED_ANY;
// USB
import static android.os.BatteryManager.BATTERY_PLUGGED_USB;
// 无线充电
import static android.os.BatteryManager.BATTERY_PLUGGED_WIRELESS;
// 当前电量
import static android.os.BatteryManager.EXTRA_LEVEL;
// 当前电池温度
import static android.os.BatteryManager.EXTRA_TEMPERATURE;
import static android.os.BatteryManager.EXTRA_SCALE;
// 当前电池电压
import static android.os.BatteryManager.EXTRA_VOLTAGE;
// 电池技术描述
import static android.os.BatteryManager.EXTRA_TECHNOLOGY;
// 最大充电电压
import static android.os.BatteryManager.EXTRA_MAX_CHARGING_VOLTAGE;
// 最大充电电流
import static android.os.BatteryManager.EXTRA_MAX_CHARGING_CURRENT;

private  BroadcastReceiver mBroadcastReceiver = new BroadcastReceiver() {@Overridepublic void onReceive(Context context, Intent intent) {if (null == intent) {return;}String action = intent.getAction();if (Intent.ACTION_BATTERY_CHANGED.equals(action)) {int status = intent.getIntExtra(EXTRA_STATUS, BATTERY_STATUS_UNKNOWN);int plugged = intent.getIntExtra(EXTRA_PLUGGED, BATTERY_PLUGGED_ANY);int level = intent.getIntExtra(EXTRA_LEVEL, 0);int scale = intent.getIntExtra(EXTRA_SCALE, 0);int health = intent.getIntExtra(EXTRA_HEALTH, BATTERY_HEALTH_UNKNOWN);int maxChargingMicroAmp = intent.getIntExtra(EXTRA_MAX_CHARGING_CURRENT, -1);int maxChargingMicroVolt = intent.getIntExtra(EXTRA_MAX_CHARGING_VOLTAGE, -1);int batteryVolt = intent.getIntExtra(EXTRA_VOLTAGE, -1);int temperature = intent.getIntExtra(EXTRA_TEMPERATURE, -1);String batteryTechnologyDescript = intent.getStringExtra(EXTRA_TECHNOLOGY);

     /*** 当前充电电压 uV** adb shell "cat /sys/class/power_supply/battery/batt_vol"*/private int getCurrentChargingVoltage() {int result = 0;BufferedReader br = null;try {String line;br = new BufferedReader(new FileReader("/sys/class/power_supply/battery/batt_vol"));if ((line = br.readLine()) != null) {result = Integer.parseInt(line);}br.close();} catch (FileNotFoundException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();} finally {if (br != null) {try {br.close();} catch (IOException e) {e.printStackTrace();}}}return result;}

     /* 当前充电电流 mA** adb shell "cat /sys/class/power_supply/battery/BatteryAverageCurrent"*/private int getCurrentChargingCurrent() {int result = 0;BufferedReader br = null;try {String line;br = new BufferedReader(new FileReader("/sys/class/power_supply/battery/BatteryAverageCurrent"));if ((line = br.readLine()) != null) {result = Integer.parseInt(line);}br.close();} catch (FileNotFoundException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();} finally {if (br != null) {try {br.close();} catch (IOException e) {e.printStackTrace();}}}return result;}