通过在网上找到相关程序的学生端的代码进行学习
实现了一小部分功能
明天还需要继续
package com.example.shazidouhuiapp.activity; import android.content.Context; import android.content.Intent; import android.os.Bundle; import android.util.AttributeSet; import android.util.Log; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.LinearLayout; import android.widget.TextView; import android.widget.Toast; import androidx.annotation.NonNull; import androidx.annotation.Nullable; import androidx.appcompat.app.AppCompatActivity; import androidx.fragment.app.Fragment; import androidx.recyclerview.widget.LinearLayoutManager; import androidx.recyclerview.widget.RecyclerView; import androidx.swiperefreshlayout.widget.SwipeRefreshLayout; import com.example.shazidouhuiapp.Adapter.HomeAdatpter; import com.example.shazidouhuiapp.Adapter.readReceiveAdapter; import com.example.shazidouhuiapp.Adapter.receiveAdapter; import com.example.shazidouhuiapp.Bean.User; import com.example.shazidouhuiapp.Bean.homework; import com.example.shazidouhuiapp.Bean.homeworkContent; import com.example.shazidouhuiapp.R; import java.util.ArrayList; import java.util.List; import cn.bmob.v3.BmobQuery; import cn.bmob.v3.BmobUser; import cn.bmob.v3.datatype.BmobPointer; import cn.bmob.v3.exception.BmobException; import cn.bmob.v3.listener.FindListener; public class student_readover_receive extends AppCompatActivity { private String id; private RecyclerView rv; private SwipeRefreshLayout srlayout; private TextView helloquestion; // private TextView HelloHome; // private TextView username,ok; private LinearLayout homesearch; List<homeworkContent> data; private readReceiveAdapter readreceiveAdapter; @Override protected void onCreate(@Nullable Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.student_unfinished_question); initView(); //初始刷新 Refresh(); srlayout.setColorSchemeResources(android.R.color.holo_green_light,android.R.color.holo_red_light,android.R.color.holo_blue_light); srlayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() { @Override public void onRefresh() { //刷新; Refresh(); } }); } private void Refresh() { Intent a=getIntent(); id=a.getStringExtra("id"); String title=a.getStringExtra("title"); helloquestion.setText(title); homework homework=new homework(); homework.setObjectId(id+""); BmobQuery<homeworkContent> query=new BmobQuery(); query.addWhereRelatedTo("homeworkContent",new BmobPointer(homework)); query.findObjects(new FindListener<homeworkContent>() { @Override public void done(List<homeworkContent> list, BmobException e) { if(e==null){ data=list; readreceiveAdapter =new readReceiveAdapter(student_readover_receive.this,data,id); rv.setLayoutManager(new LinearLayoutManager(student_readover_receive.this)); rv.setAdapter(readreceiveAdapter); } else { Toast.makeText(student_readover_receive.this, "题目数据获取失败", Toast.LENGTH_SHORT).show(); } } }); } private void initView() { rv = findViewById(R.id.question_recyclerview); srlayout =findViewById(R.id.question_swipe); helloquestion=findViewById(R.id.helloquestion); } }