FragmentsTabAdapter.java

package com.ulan.timetable.adapters;

import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentStatePagerAdapter;

import java.util.ArrayList;
import java.util.List;

/**
 * Created by Ulan on 05.09.2018.
 */
public class FragmentsTabAdapter  extends FragmentStatePagerAdapter {

    private final List<Fragment> mFragmentList = new ArrayList<>();
    private final List<String> mFragmentTitleList = new ArrayList<>();

    public FragmentsTabAdapter(FragmentManager fm) {
        super(fm);
    }
    @Override
    public Fragment getItem(int position) {
        return mFragmentList.get(position);
    }

    public void addFragment(Fragment fragment, String title) {
        mFragmentList.add(fragment);
        mFragmentTitleList.add(title);
    }
    @Nullable
    @Override
    public CharSequence getPageTitle(int position) {
        return mFragmentTitleList.get(position);
    }
    @Override
    public int getCount() {
        return mFragmentList.size();
    }

    @Override
    public int getItemPosition(@NonNull Object object) {
        return POSITION_NONE;
    }

    public List<Fragment> getFragmentList() {
        return mFragmentList;
    }

    public void removeFragment(Fragment fragment, int position) {
        mFragmentList.remove(position);
        mFragmentTitleList.remove(position);
    }
}