expert-app/app/src/main/java/cn/shangyu/gdxzExpert/adapter/BaseFragemetAdapter.java

package cn.shangyu.gdxzExpert.adapter;

import android.view.ViewGroup;

import java.util.ArrayList;

import androidx.annotation.NonNull;
import androidx.fragment.app.Fragment;
import androidx.fragment.app.FragmentManager;
import androidx.fragment.app.FragmentStatePagerAdapter;

public class BaseFragemetAdapter extends FragmentStatePagerAdapter {
    ArrayList<Fragment> fgs;
    private String[] mTitles;
    public Fragment currentFragment;

    public void setFgs(ArrayList<Fragment> fgs, String[] mTitles){
        this.fgs=fgs;
        this.mTitles=mTitles;
    }
    public BaseFragemetAdapter(FragmentManager fm) {
        super(fm);
    }

    @Override
    public void setPrimaryItem(@NonNull ViewGroup container, int position, @NonNull Object object) {

        this.currentFragment = (Fragment) object;
        super.setPrimaryItem(container, position, object);
    }

    @Override
    public Fragment getItem(int position) {

        return fgs.get(position);
    }

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

    @Override
    public CharSequence getPageTitle(int position) {
        return mTitles[position];//很重要，起到与tableLayout关联的作用，
//            否则会报错
    }
}