CODEWITHSUNDEEP
androidandroid-fragmentsandroid-viewpagerandroid-tablayout
stud91
stud91

Reputation: 1854

viewpager with tabLayout scrolling issue

I have three nested fragments (inside a main fragment) that I implement using TabLayout with ViewPager. In my main fragment i have a Spinner view that filters the content of the first two fragments. However, i do not want this Spinner view to appear in my third fragment. To implement it I use addOnPageChangeListener() as shown below:

mallDropDown is my Spinner view.

However, this implementation works only if i select the fragments by clicking on the title. If i scroll through the fragments by swiping then it is very unstable i.e. sometimes the Spinner appears when it shouldn't have and so on.

viewPager.addOnPageChangeListener(new ViewPager.OnPageChangeListener() {
            @Override
            public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {

            }

            @Override
            public void onPageSelected(int position) {

                switch (position) {
                    case 0:
                        mallDropDown.setVisibility(View.VISIBLE);
                        break;
                    case 1:
                        mallDropDown.setVisibility(View.VISIBLE);
                        break;
                    case 2:
                        mallDropDown.setVisibility(View.GONE);
                        break;
                    default:
                        mallDropDown.setVisibility(View.VISIBLE);
                        break;
                }
            }

            @Override
            public void onPageScrollStateChanged(int state) {

            }
        });

Upvotes: 0

Views: 720

Answers (1)

siva
siva

Reputation: 403

Check this onPageScrollStateChanged, it may work

@Override 
public void onPageScrollStateChanged(int state) {
           super.onPageScrollStateChanged(state);
           if(state == ViewPager.SCROLL_STATE_IDLE) {
                   // hide if not
                }
            }

Upvotes: 1

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