pass data to another fragment by swipe view with tab android studio,not button

Question

Is it possible to pass a data from fragment to fragment by swipe?

There are many articles teaching us how to pass the data from fragment to fragment, but most of t

Answer 1

To transfer data from one fragment to another fragment when swipe is performed ,firstly you should get the view of the each fragment.here is the sample code that can help you out a bit. write this code in Activity:

 mviewpager.addOnPageChangeListener(new TabLayout.TabLayoutOnPageChangeListener(tabLayout));
    mviewpager.addOnPageChangeListener(new ViewPager.OnPageChangeListener() {
        @Override
        public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
            adapter = ((SOFragmentPagerAdapter) mviewpager.getAdapter());

//getting the view of fragments at positions              


 if(position==0)
            {
                View v = null;
             Fragment1=(Fragment1)adapter.getFragment(position);
                v=fragment1.getMyView();//this is how you get the view
                ListView lv=(ListView)v.findViewById(R.id.lv_services);
                ArrayAdapter arrayAdapter=new ArrayAdapter(SOListItemSelectedActivity.this,android.R.layout.simple_list_item_1,soRequestFragment.al_list_of_services);
                lv.setAdapter(arrayAdapter);
            }

            if(position==1)
            {


            }
        }

        @Override
        public void onPageSelected(int position) {
            if(position==0)
            {
                View v = null;
                soRequestFragment=(SORequestFragment)adapter.getFragment(position);
                v=soRequestFragment.getMyView();
            }
            if(position==1)
            {


            }
        }

        @Override
        public void onPageScrollStateChanged(int state) {

        }
    });
    tabLayout.setOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
        @Override
        public void onTabSelected(TabLayout.Tab tab) {
            mviewpager.setCurrentItem(tab.getPosition());
        }

        @Override
        public void onTabUnselected(TabLayout.Tab tab) {

        }

        @Override
        public void onTabReselected(TabLayout.Tab tab) {

        }
    });

and create a FragmentPagerAdapter as:

public class SOFragmentPagerAdapter extends FragmentPagerAdapter {
HashMap mPageReferenceMap;
int mNumOfTabs;
public SOFragmentPagerAdapter(FragmentManager fm,int mNumOfTabs) {
    super(fm);
    this.mNumOfTabs=mNumOfTabs;
    mPageReferenceMap=new HashMap();
}

@Override
public Fragment getItem(int position) {
      switch (position)
      {
          case 0:
              Fragment1 fragment1=new tFragment1();
              mPageReferenceMap.put(position,fragment1);
              return fragment1;

          case 1:
              Fragment2 fragment2=new Fragment2();
              mPageReferenceMap.put(position,fragment2);
              return fragment2;

          default:
              return null;
      }

}
public Fragment getFragment(int key) {
    return mPageReferenceMap.get(key);
}
@Override
public int getCount() {
    return 2;
}}

In Fragments add the getmyview() which will return the view of that fragment as:

public void getmyview()

{ return myview;//myview is fragment view which you will return in oncreateview method }

Note: Viewpager execute onpagescroll first and get the position 0,1 and when you scroll ,views at position 1,2 will execute and page selected 0 will execute. For tabselections: Tabunselected,Tabselected Tab reselected is the sequence of execution. so write accordingly in the respective positions of fragments. Hope this helps you.