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;
        }
      }
    }
};