updateData method
updates data to actual
Implementation
Future<void> updateData() async {
if (_isInit == false) throw "You should call unit() before";
if (_token == null) throw "You should call login() before";
var user = await _vkApi.method('account.getProfileInfo');
if (user == null) {
_profile = null;
_token = null;
return notifyListeners();
}
var photosInfo = await _vkApi.method('users.get',
params: {'fields': 'photo_50,photo_100,photo_200,photo_max_orig', 'user_ids': '${user['id']}'});
_profile = VkUser.fromJSON(user, photosInfo[0]);
notifyListeners();
}