如何在Android电池使用状况确定的？ [英] How is the Android battery health determined?

问题描述

我不是在谈论如何读出的值。

I am not talking about how to read the value.

相反，我感兴趣的是如何BatteryManager.EXTRA_HEALTH的值被设置。

Rather, I am interested in how the value of BatteryManager.EXTRA_HEALTH is being set.

它来自固件？制造商特定的？

Does it come from the firmware? Manufacturer specific?

什么决定了这些价值？

int BATTERY_HEALTH_COLD 
int BATTERY_HEALTH_DEAD 
int BATTERY_HEALTH_GOOD 
int BATTERY_HEALTH_OVERHEAT 
int BATTERY_HEALTH_OVER_VOLTAGE 
int BATTERY_HEALTH_UNKNOWN  
int BATTERY_HEALTH_UNSPECIFIED_FAILURE

谢谢， 西蒙

Thanks, Simon

推荐答案

通过使用这种code就可以得到有关的电池信息。

By using this code you can get information regarding battery..

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;
        String temp=null;

        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");
            info += ("Temp: "+getTempStatus(temp,intent)+"\n");

            setBatteryLevelText(info + "\n\n" + bundle.toString());
        }
        else
        {
            setBatteryLevelText("Battery not present!!!");
        }
    }
};
private void registerBatteryLevelReceiver(){
    IntentFilter filter = new IntentFilter(Intent.ACTION_BATTERY_CHANGED);

    registerReceiver(battery_receiver, filter);
}

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