电池的寿命

Question

有没有办法或如何获得或知道电池的寿命？我正在制作电池信息，就像在“Battery Doctor Saver Pro”中一样，不同之处在于我需要的寿命。我不知道该怎么做。谁能帮我这个？谢谢你的帮助。 :) 到目前为止，这是我的代码，没有我所说的“寿命”。

private BroadcastReceiver battery_receiver = new BroadcastReceiver() {

        @Override
        public void onReceive(Context context, Intent intent) {
            boolean isPresent = intent.getBooleanExtra("present", false);
            String technology = intent.getStringExtra("technology");
            int plugged = intent.getIntExtra("plugged", -1);
            int scale = intent.getIntExtra("scale", -1);
            int health = intent.getIntExtra("health", 0);
            int status = intent.getIntExtra("status", 0);
            int rawlevel = intent.getIntExtra("level", -1);
            int level = 0;

            Bundle bundle = intent.getExtras();

            Log.i("BatteryLevel", bundle.toString());

            if (isPresent) {
                if (rawlevel >= 0 && scale > 0) {
                    level = (rawlevel * 100) / scale;
                }

                String info = "Battery Level: " + level + "%\n";

                info += ("Technology: " + technology + "\n");
                info += ("Plugged: " + getPlugTypeString(plugged) + "\n");
                info += ("Health: " + getHealthString(health) + "\n");
                info += ("Status: " + getStatusString(status) + "\n");

                setBatteryLevelText(info + "\n\n" + bundle.toString());
            } else {
                setBatteryLevelText("Battery not present!!!");
            }
        }
    };

    private String getPlugTypeString(int plugged) {
        String plugType = "Unknown";

        switch (plugged) {
        case BatteryManager.BATTERY_PLUGGED_AC:
            plugType = "AC";
            break;
        case BatteryManager.BATTERY_PLUGGED_USB:
            plugType = "USB";
            break;
        }

        return plugType;
    }

    private String getHealthString(int health) {
        String healthString = "Unknown";

        switch (health) {
        case BatteryManager.BATTERY_HEALTH_DEAD:
            healthString = "Dead";
            break;
        case BatteryManager.BATTERY_HEALTH_GOOD:
            healthString = "Good Condition";
            break;
        case BatteryManager.BATTERY_HEALTH_OVER_VOLTAGE:
            healthString = "Over Voltage";
            break;
        case BatteryManager.BATTERY_HEALTH_OVERHEAT:
            healthString = "Over Heat";
            break;
        case BatteryManager.BATTERY_HEALTH_UNSPECIFIED_FAILURE:
            healthString = "Failure";
            break;
        }

        return healthString;
    }

    private String getStatusString(int status) {
        String statusString = "Unknown";

        switch (status) {
        case BatteryManager.BATTERY_STATUS_CHARGING:
            statusString = "Charging";
            break;
        case BatteryManager.BATTERY_STATUS_DISCHARGING:
            statusString = "Discharging";
            break;
        case BatteryManager.BATTERY_STATUS_FULL:
            statusString = "Full";
            break;
        case BatteryManager.BATTERY_STATUS_NOT_CHARGING:
            statusString = "Not Charging";
            break;
        }

        return statusString;
    }

Answer 1

不完全确定您要在这里做什么，要计算瓦特小时或安培小时，请查看此链接： http://www.powerstream.com/battery-capacity-calculations.htm 如果您想要您当前使用的电池剩余时间，您需要获取当前电池电量，然后知道它的耗尽速度，或者通过检查它在此之前耗尽的速度然后做出假设，或者通过知道你会消耗多少电流。

如果您针对所使用的确切电池校准代码，将获得最佳结果

（看起来我的答案被打败了；））

Answer 2

正如我在Get the remaining battery time available from an Android phone 上所说，您需要获取当前的电池电量并估算出当前的电量消耗速度。这将取决于处理器负载、屏幕亮度、激活的无线电以及可能的其他因素。

简短的回答，当然可以得到一个估计，但这并不容易，而且可能不是很准确