Error non-default constructors in fragments

Question

I am dealing with maps apiv2. And I am getting the following error while coding for Dialog Fragment class.

Error : Avoid non-de

Answer 1

Because of the nature of fragment and how there managed and shown on your screen it's very recommended not to create a non default constructor and in many cases this would cause problems in run time. In case you should do something like this:

public static final GridFragment newInstance(String tabId)
{
    GridFragment f = new GridFragment();
    Bundle bdl = new Bundle(2);
    bdl.putString(TAB_ID, tabId);
    f.setArguments(bdl);
    return f;
}

and in onCreate extract the needed data from the bundle:

@Override
public void onCreate(Bundle savedInstanceState) 
{
    String tabId = getArguments().getString(TAB_ID);
    }

And take a look at this question as well:

Do fragments really need an empty constructor?