3.20

public class MainActivity2 extends AppCompatActivity {

    private Button goalAnalysisButton;
    private Button dailyCheckInButton;
    private Button statisticsButton;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main2);

        goalAnalysisButton = findViewById(R.id.GoalAnalysisButton);
        dailyCheckInButton = findViewById(R.id.DailyCheckInButton);
        statisticsButton = findViewById(R.id.StatisticsButton);

        // 目标与分析按钮点击事件
        goalAnalysisButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(MainActivity2.this, GoalAnalysis.class);
                startActivity(intent);
            }
        });

        // 每日打卡按钮点击事件
        dailyCheckInButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(MainActivity2.this, DailyCheckIn.class);
                startActivity(intent);
            }
        });
    }


        // 处理统计与分析按钮点击事件
        public void queryStatisticsData(View view) {
            new Thread() {
                @Override
                public void run() {
                    // 在后台线程中执行查询统计数据的操作

                    // 获取当前登录用户的 studentId
                    String studentId = StudentDao.getCurrentLoggedInUserId();

                    // 获取学生对象
                    StudentDao studentDao = new StudentDao();
                    Student student = studentDao.findStudent(studentId);
                    if (student != null) {
                        // 获取 setGoal、setRecord 和完成度百分比
                        int setGoal = student.getSetGoal();
                        int setRecord = student.getSetRecord();
                        double completionPercentage = PlanningDao.calculateCompletionPercentage(studentId);

                        // 创建一个列表存储数据
                        ArrayList<StatisticData> statisticDataList = new ArrayList<>();
                        statisticDataList.add(new StatisticData(studentId, setGoal, setRecord, completionPercentage));

                        // 将数据传递给 Statistics 类（com.example.demo3 包下）
                        Intent intent = new Intent(MainActivity2.this, Statistics.class);
                        intent.putParcelableArrayListExtra("statisticDataList", statisticDataList);
                        startActivity(intent);
                    }
                }
            }.start();
        }

}