Android 电池广播信息-电池电压和电流-白红宇

Android 电池广播信息-电池电压和电流

阅读量：4147 次

发布时间：2019-05-25

本文共 4822 字，大约阅读时间需要 16 分钟。

0.效果

1. 电池广播信息

// 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;// USBimport 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;

我们可以监听电池广播获取

private  BroadcastReceiver mBroadcastReceiver = new BroadcastReceiver() {        @Override        public 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);

2. 电池电压获取

读取文件节点即可

adb shell “cat /sys/class/power_supply/battery/batt_vol”

/**     * 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;    }

3. 电池电流获取

读取文件节点即可

adb shell “cat /sys/class/power_supply/battery/BatteryAverageCurrent”

/**     * 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;    }