在Android10中，当代码在Android9中工作正常后，getLastKnownLocation总是返回null

<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />

if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
    ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.ACCESS_FINE_LOCATION}, REQUEST_LOCATION_PERMISSION);
}

@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
    if (requestCode == REQUEST_LOCATION_PERMISSION) {
        if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
            // 权限已授予，可以进行位置相关操作
        } else {
            // 权限被拒绝，无法获取位置信息
        }
    }
}

if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED) {
    LocationManager locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
    Location lastKnownLocation = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
    if (lastKnownLocation != null) {
        // 获取到位置信息
    } else {
        // 位置信息不可用
    }
} else {
    // 未获取到位置权限
}