Question

2Hi guys I’m trying to build an app using a horizontal pager and the support package for Android. I’ve made this exact code compile in another project but the last line of the second code example is not letting me compile. Eclipse is saying Cannot instantiate the type PagerAdapter

My imports

import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.view.PagerAdapter;
import android.support.v4.view.ViewPager;

My code

List<Fragment> fragments = new Vector<Fragment>();
    fragments.add(Fragment.instantiate(this, Tab1.class.getName()));
    fragments.add(Fragment.instantiate(this, Tab2.class.getName()));
    fragments.add(Fragment.instantiate(this, Tab3.class.getName()));
    this.mPagerAdapter  = new PagerAdapter(super.getSupportFragmentManager(), fragments);

Do you think there is something wrong with my imports or project set up – let me know if you need more information. This code has worked in other projects.

Thanks

Answer 1

PagerAdapter is an abstract class – you cannot instantiate it. You have to create a new class that inherits from PagerAdapter and use that instead.