Calling fragment from activity

Question

I am trying to call a class whıch extends fragment from an activity class with startActivity() . It returns me cannot be cast to android.app.activity error. I am confused how can I open fragment vıew from activity.

You can not open fragment from an activity but you have to call a fragment using fragment manager and fragment transaction. — madteapot, Jul 13 '14 at 13:28
but I want to call a class which extends fragment. can fragment manager do this? — user3834286, Jul 13 '14 at 13:30

score 1 · Accepted Answer · answered Jul 13 '14 at 13:32

1

In the activity, you create an transaction to replace a fragment by another:

    FragmentSelectDate myFragment = new FragmentSelectDate();
    myFragment.setArguments(getIntent().getExtras());
    FragmentTransaction transaction = getSupportFragmentManager()
            .beginTransaction();
    transaction.replace(R.id.containerMain, myFragment,
                "FragmentSelectDate");
    transaction.addToBackStack(null);
    transaction.commit();

answered Jul 13 '14 at 13:32

roberth

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if you were not using supportFragment then call getFragmentManger() – NoXSaeeD Jul 13 '14 at 13:35
both getsupportfragmentmanager and getfragmentmanager cannot be resolved sınce my first class extends activity. also what is R.id.containerMain ? – user3834286 Jul 13 '14 at 13:39
@user3834286, the activity where you use getSupportFragmentManager has to extend "FragmentActivity". R.id.containerMain is a , that I placed in the Activity's layout (.XML). So the Activity has a layout (.XML), that holds a FrameLayout (the container for the fragment). You can have more fragments in 1 activity-layout) – roberth Jul 14 '14 at 14:42

Calling fragment from activity

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