第二阶段冲刺9

这是一个关于登陆进入对应用户界面的几个功能。

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package com.example.shazidouhuiapp.activity;   import android.content.Intent; import android.os.Bundle; import android.widget.Toast;   import androidx.annotation.Nullable; import androidx.appcompat.app.AppCompatActivity;   import com.example.shazidouhuiapp.Bean.User; import com.example.shazidouhuiapp.MainActivity; import com.example.shazidouhuiapp.R;   import java.util.Timer; import java.util.TimerTask;   import cn.bmob.v3.Bmob; import cn.bmob.v3.BmobQuery; import cn.bmob.v3.BmobUser; import cn.bmob.v3.exception.BmobException; import cn.bmob.v3.listener.QueryListener;   public class splash extends AppCompatActivity {     @Override     protected void onCreate(@Nullable Bundle savedInstanceState) {         super.onCreate(savedInstanceState);         setContentView(R.layout.splash);         Timer timer = new Timer();         timer.schedule(timertask, 2000);         Bmob.initialize(this,"e575c228703fd6ae7b822919edc18236");     }       TimerTask timertask = new TimerTask() {         @Override         public void run() {             BmobUser currentUser = BmobUser.getCurrentUser(User.class);             //逻辑判断是否登录，登陆了进入对应用户界面             if (currentUser!=null) {                 String id=currentUser.getObjectId();                 BmobQuery<User> query=new BmobQuery<>();                 query.getObject(id, new QueryListener<User>() {                     @Override                     public void done(User user, BmobException e) {                         if(user.getType().equals("student")){                             startActivity(new Intent(splash.this, studentinterface.class));                         }                         else if(user.getType().equals("teacher")){                             startActivity(new Intent(splash.this,teacherinterface.class));                         }                     }                 });               }             else {                 startActivity(new Intent(splash.this, mobloging.class));            }           }     }; }