java - 有没有办法在不使用任何第三方应用程序的情况下以编程方式控制安卓中的充电？

Question

我们有一个 Android 应用程序，它必须安装在选项卡中的客户端位置，并且必须为选项卡充电并连续运行，而不会关闭选项卡，这会导致电池健康状况下降。所以我们必须在我们的应用程序中实现一个解决方案，即使充电器是物理连接的，用户也可以设置一些充电限制来控制。

（例如：如果我将 80% 设置为上限，20% 设置为下限，则标签应在达到 80% 时停止充电，并在达到 20% 时自动开始充电）。

有人可以告诉我有没有办法做到这一点。

提前致谢。

Answer 1

您可能需要在BroadcastReceiver上使用带有意图过滤器的BroadCastReceiver尝试通过 BatteryManager 获取电池电量：

public class MyPowerMonitorReceiver extends BroadcastReceiver {
  
    private float currentBatteryLevel;

    @Override
    public void onReceive(Context context, Intent intent) {



       switch (action) {
            case (Intent.ACTION_BATTERY_CHANGED): {
                Log.i(TAG, "Battery has changed");

                int level = intent.getIntExtra(BatteryManager.EXTRA_LEVEL, -1);
                int scale = intent.getIntExtra(BatteryManager.EXTRA_SCALE, -1);

                currentBatteryLevel = (level * 100) / (float) scale;

                Toast.makeText(context, "Current battery level: " + Float.toString(currentBatteryLevel) + "%" + " level: " + level + " scale: " + scale, Toast.LENGTH_LONG).show();

                break;
            }
            case (Intent.ACTION_POWER_CONNECTED): {
                Log.i(TAG, "Power connected");

                int status = intent.getIntExtra(BatteryManager.EXTRA_STATUS, -1);
                boolean isCharging = status == BatteryManager.BATTERY_STATUS_CHARGING || status == BatteryManager.BATTERY_STATUS_FULL;

                int chargePlug = intent.getIntExtra(BatteryManager.EXTRA_PLUGGED, -1);
                boolean usbCharge = chargePlug == BatteryManager.BATTERY_PLUGGED_USB;
                boolean acCharge = chargePlug == BatteryManager.BATTERY_PLUGGED_AC;

                String chargingType = null;

                if (usbCharge) {
                    chargingType = "USB";
                } else if (acCharge) {
                    chargingType = "AC Power";
                }

                if (isCharging && chargingType != null) {
                    Toast.makeText(context, "Device is charging via: " + chargingType, Toast.LENGTH_SHORT).show();
                } else {
                    Toast.makeText(context, "Device is charging.", Toast.LENGTH_SHORT).show();
                }
                break;
            }
            case (Intent.ACTION_POWER_DISCONNECTED): {
                Log.i(TAG, "Power disconnected");
                Toast.makeText(context, "Power Disconnected", Toast.LENGTH_SHORT).show();
                break;
            }
            case (Intent.ACTION_BATTERY_LOW): {
                Log.i(TAG, "Battery low");
                Toast.makeText(context, "Battery low", Toast.LENGTH_SHORT).show();
                break;
            }
            case (Intent.ACTION_BATTERY_OKAY): {
                Log.i(TAG, "Battery Okay");
                Toast.makeText(context, "Battery Okay", Toast.LENGTH_SHORT).show();
                break;
            }
        }
    }
}