Attendance Management System

Attendance Management System

First, let's create the XML layout file activity_attendance_management.xml for the activity:

XML Code

<!-- activity_attendance_management.xml -->
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:padding="16dp"
    tools:context=".AttendanceManagementActivity">
 
    <TextView
        android:id="@+id/course_name_text_view"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:textAppearance="?android:attr/textAppearanceMedium" />
 
    <Button
        android:id="@+id/mark_present_button"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Mark Present" />
 
    <Button
        android:id="@+id/mark_absent_button"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Mark Absent" />
 
    <Button
        android:id="@+id/view_attendance_button"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="View Attendance" />
 
</LinearLayout>
 

Next, let's create the Java code for the activity:

JAVA Code

import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
 
public class AttendanceManagementActivity extends AppCompatActivity {
 
    private TextView courseNameTextView;
    private Button markPresentButton;
    private Button markAbsentButton;
    private Button viewAttendanceButton;
 
    private String courseName;
    private int presentCount;
    private int absentCount;
 
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_attendance_management);
 
        // Initialize views
        courseNameTextView = findViewById(R.id.course_name_text_view);
        markPresentButton = findViewById(R.id.mark_present_button);
        markAbsentButton = findViewById(R.id.mark_absent_button);
        viewAttendanceButton = findViewById(R.id.view_attendance_button);
 
        // Initialize attendance data
        courseName = "Android Development";
        presentCount = 0;
        absentCount = 0;
 
        // Set course name
        courseNameTextView.setText(courseName);
 
        // Set mark present button click listener
        markPresentButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                markPresent();
            }
        });
 
        // Set mark absent button click listener
        markAbsentButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                markAbsent();
            }
        });
 
        // Set view attendance button click listener
        viewAttendanceButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                viewAttendance();
            }
        });
    }
 
    private void markPresent() {
        presentCount++;
        Toast.makeText(this, "Attendance Marked Present", Toast.LENGTH_SHORT).show();
    }
 
    private void markAbsent() {
        absentCount++;
        Toast.makeText(this, "Attendance Marked Absent", Toast.LENGTH_SHORT).show();
    }
 
    private void viewAttendance() {
        String attendanceInfo = "Present: " + presentCount + "\nAbsent: " + absentCount;
        Toast.makeText(this, attendanceInfo, Toast.LENGTH_LONG).show();
    }
}
 

In this example, the AttendanceManagementActivity class extends AppCompatActivity.