fragments in viewpager, no view found error

Question

I have an activity holding a fragment, in this fragment there is a button , when it is clicked, a dialog is popped out.

In this dialog, there is a Viewpager, which

Answer 1

I think you used

Dialog dialog = new Dialog(context);

Instends this.

1st Step: Used DialogFragment

public class MyCustomDialog extends DialogFragment {
    Button mButton;
    EditText mEditText;


    List listdata;
    int position;
    ViewPager viewpager;

    public MyCustomDialog(List listdata, int position) {
        this.listdata = listdata;
        this.position = position;
    }




    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        final View dialog = inflater.inflate(R.layout.dailoglayout, container);

        final Dialog dailog = getDialog();
        dailog.getWindow().setLayout(LinearLayout.LayoutParams.FILL_PARENT, LinearLayout.LayoutParams.MATCH_PARENT);
        dailog.getWindow().requestFeature(Window.FEATURE_NO_TITLE);
        dailog.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
                WindowManager.LayoutParams.FLAG_FULLSCREEN);

        ImageView closebtn = (ImageView) dialog.findViewById(R.id.closeimgeview);
        closebtn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                dailog.dismiss();
            }
        });

        viewpager = (ViewPager) dialog.findViewById(R.id.dailog_viewpager);

        **viewpager.setAdapter(new PagerAdapter(getChildFragmentManager(), listdata));** //This Line is Very important
        viewpager.setCurrentItem(position);

        return dialog;
    }


    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setStyle(DialogFragment.STYLE_NORMAL, android.R.style.Theme_Black_NoTitleBar_Fullscreen); //For Full Screen of DailogBox
    }

}

2nd Step :set The FragmentViewPager

public class PagerAdapter extends FragmentPagerAdapter   {

    private final List pages;

    public PagerAdapter(FragmentManager fm, List pages) {
        super(fm);
        this.pages = pages;
    }



    @Override
    public Fragment getItem(int position) {
        return new ViewPagerFragment(pages.get(position));
    }

    @Override
    public int getCount() {
        return pages.size();
    }
}

3rd Step : Fragment View For ViewPager:

public class ViewPagerFragment extends Fragment {

    MasterPageModel masteDetailModel;


    public ViewPagerFragment(MasterPageModel questionItem) {
        this.masteDetailModel = questionItem;
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View v = inflater.inflate(R.layout.pagerlayout, container, false);

        ImageView image = (ImageView) v.findViewById(R.id.pager_imageview);
        Log.i("Image", "=>" + masteDetailModel.imagelarge);
        Picasso.with(getActivity()).load(masteDetailModel.imagethumb).error(R.drawable.img).into(image);

        return v;
    }

4th How to Use this dialogfragment:

 MyCustomDialog fragment1 = new MyCustomDialog(listdata, position);
                EditionDetailActivity act = (EditionDetailActivity) context;
                FragmentManager fm = act.getSupportFragmentManager();
                fragment1.show(fm, "");