Frament transaction with list fragment

Question

I am trying to implement a navigation drawer. "Fragment1" is a list fragment:

public class Fragment1 extends ListFragment {
private List<String> musicList;

public static ListFragment newInstance(Context context) {
    Fragment1 f = new Fragment1();

    return f;
}

However i cannot use the fragmenttransaction to replace the fragments in the main activity:

public class MainActivity extends AbstractNavDrawerActivity {

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    if ( savedInstanceState == null ) {
        getSupportFragmentManager().beginTransaction().replace(R.id.content_frame, new Fragment1()).commit();
    }
}


@Override
protected void onNavItemSelected(int id) {
    switch ((int)id) {
    case 101:
        getSupportFragmentManager().beginTransaction().replace(R.id.content_frame, new Fragment1()).commit();
        break;
    case 102:
        getSupportFragmentManager().beginTransaction().replace(R.id.content_frame, new Fragment2()).commit();
        break;
    }
}

}

The replace method has a redline under it and says:

The method replace(int, Fragment) in the type FragmentTransaction is not applicable for the arguments (int, Fragment1)"

What should i do?

Answer 1

getActivity().getSupportFragmentManager().beginTransaction().replace(R.id.content_frame,     new Fragment1()).commit();

IMO you should avoid having such long code with method call after method code, it's messy and hard to understand! Maybe try :

FragmentTransaction transaction = getActivity().getSupportFragmentManager()
                    .beginTransaction();
Fragment newFragment = new Fragment1();
transaction.add(R.id.content_frame, newFragment);
transaction.addToBackStack(null);
transaction.commit();