Android做分页加载的思路

package com.example.app5.ui.fragment;


import android.content.Context;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AbsListView;
import android.widget.GridView;
import android.widget.SimpleAdapter;

import com.example.app5.R;
import com.example.app5.base.BaseFragment;
import com.example.app5.base.OkHttp;
import com.example.app5.data.MeetImge;
import com.example.app5.ui.adapter.ImageAdpter;

import org.jetbrains.annotations.NotNull;

import java.util.List;
import java.util.Map;

import androidx.annotation.NonNull;
import androidx.annotation.Nullable;

public class NavigationFragment1 extends BaseFragment {

    private Context mContext;
    private List<Map<String, Object>> data_list;
    private SimpleAdapter sim_adapter;
    private GridView gview;
//    private int mPage;//全局变量要m开头
    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        //注意View对象的重复使用，以便节省资源

        return inflater.inflate(R.layout.fragment_navigation1, container, false);

    }

    @Override
    public void onViewCreated(@NonNull @NotNull View view, @Nullable Bundle savedInstanceState) {
        super.onViewCreated(view, savedInstanceState);
        gview = view.findViewById(R.id.gview);

//        gview.setOnScrollListener(new AbsListView.OnScrollListener() {
//            @Override
//            public void onScrollStateChanged(AbsListView absListView, int i) {
//                mPage = 1;
//                if (httpRes.isSuccessful()) {
//                    List<MeetImge> data = httpRes.dataFromList(MeetImge.class);
//                    adapter.addAll(data);
//                    mPage++;
//                }
//            }//设置下滑监听，mpage赋值为1，当什么的时候就++
//
//            @Override
//            public void onScroll(AbsListView absListView, int i, int i1, int i2) {
//                OkHttp.create().getIndexList(mPage).enqueue((call, httpRes) -> {
//                    Log.d("xxx", httpRes.toString());
//                    if (httpRes.isSuccessful()) {
//                        List<MeetImge> data = httpRes.dataFromList(MeetImge.class);
//                        adapter.addAll(data);
//                        mPage++;
//                    }
//                });
//            }
//        });
        ImageAdpter adapter = new ImageAdpter(getActivity());
        gview.setAdapter(adapter);

        OkHttp.create(this).getIndexList(1).enqueue((call, httpRes) -> {
            Log.d("xxx", httpRes.toString());
            if (httpRes.isSuccessful()) {
                List<MeetImge> data = httpRes.dataFromList(MeetImge.class);
                adapter.addAll(data);
//                mPage++;
            }
        });
    }
}