删除数据库升级方法；插入数据库改到Activity，否则application insert会报错；

lizhanwei

2020-01-08 12c468b38b46e61f9c2dcec27684e9ea1d54adcf

 app/src/main/java/safeluck/drive/evaluation/MainActivity.java

@@ -17,8 +17,13 @@
import androidx.lifecycle.ViewModelProviders;

import me.yokeyword.fragmentation.SupportActivity;
import safeluck.drive.evaluation.DB.Student;
import safeluck.drive.evaluation.DB.WokViewModel;
import safeluck.drive.evaluation.fragment.HomeFragment;
import com.anyun.exam.lib.MyLog;

import java.util.List;

import safeluck.drive.evaluation.util.PermissionManager;
import safeluck.drive.evaluation.viewmodels.MainViewModel;

@@ -37,6 +42,18 @@

        setContentView(R.layout.activity_main);

        WokViewModel wokViewModel = ViewModelProviders.of(this).get(WokViewModel.class);
        wokViewModel.getStudents().observe(this, new Observer<List<Student>>() {
            @Override
            public void onChanged(List<Student> students) {
                for (Student student:
                        students) {
                    Log.i(TAG, "onChanged: "+student.toString());
                }
            }
        });


        mPermissionsManager = new PermissionManager(this) {
            @Override
            public void authorized(int requestCode) {