Android编程实现对电池状态的监视功能示例

private BroadcastReceiver mBatInfoReceiver = new BroadcastReceiver() {    int intLevel = 0;    int intScale = 0;    public void onReceive(Context context, Intent intent) {      String action = intent.getAction();      /*       * 如果捕捉到的action是ACTION_BATTERY_CHANGED， 就运行onBatteryInfoReceiver()       */      if (Intent.ACTION_BATTERY_CHANGED.equals(action)) {        intLevel = intent.getIntExtra("level", 0);        intScale = intent.getIntExtra("scale", 100);        // 电池伏数        Log.d("Battery V", "" + intent.getIntExtra("voltage", 0));        // 电池温度        Log.d("Battery T", "" + intent.getIntExtra("temperature", 0));        BatteryV = "当前电压为：" + intent.getIntExtra("voltage", 0);        BatteryT = "当前温度为：" + intent.getIntExtra("temperature", 0);        switch (intent.getIntExtra("status",            BatteryManager.BATTERY_STATUS_UNKNOWN)) {        case BatteryManager.BATTERY_STATUS_CHARGING:          BatteryStatus = "充电状态";          break;        case BatteryManager.BATTERY_STATUS_DISCHARGING:          BatteryStatus = "放电状态";          break;        case BatteryManager.BATTERY_STATUS_NOT_CHARGING:          BatteryStatus = "未充电";          break;        case BatteryManager.BATTERY_STATUS_FULL:          BatteryStatus = "充满电";          break;        case BatteryManager.BATTERY_STATUS_UNKNOWN:          BatteryStatus = "未知道状态";          break;        }        switch (intent.getIntExtra("plugged",            BatteryManager.BATTERY_PLUGGED_AC)) {        case BatteryManager.BATTERY_PLUGGED_AC:          BatteryStatus2 = "AC充电";          break;        case BatteryManager.BATTERY_PLUGGED_USB:          BatteryStatus2 = "USB充电";          break;        }        switch (intent.getIntExtra("health",            BatteryManager.BATTERY_HEALTH_UNKNOWN)) {        case BatteryManager.BATTERY_HEALTH_UNKNOWN:          BatteryTemp = "未知错误";          break;        case BatteryManager.BATTERY_HEALTH_GOOD:          BatteryTemp = "状态良好";          break;        case BatteryManager.BATTERY_HEALTH_DEAD:          BatteryTemp = "电池没有电";          break;        case BatteryManager.BATTERY_HEALTH_OVER_VOLTAGE:          BatteryTemp = "电池电压过高";          break;        case BatteryManager.BATTERY_HEALTH_OVERHEAT:          BatteryTemp = "电池过热";          break;        }      }    }};