Java《基于Android Studio设计的学生管理系统》+源代码+设计资料

package com.example.a88481.studentmanage; import android.content.DialogInterface; import android.os.Bundle; import android.support.v7.app.AlertDialog; import android.support.v7.app.AppCompatActivity; import android.view.LayoutInflater; import android.view.View; import android.widget.Button; import android.widget.CheckBox; import android.widget.EditText; import android.widget.ListView; import android.widget.SimpleAdapter; import com.example.a88481.studentmanage.DAL.StudentService; import com.example.a88481.studentmanage.Model.Student; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; public class MainActivity extends AppCompatActivity implements View.OnClickListener{ private Button btnAdd; private Button btnDelete; private List<Student> students; private List<Map<String,Object>> data; private SimpleAdapter adapter; private ListView lvStudents; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); this.init(); } private void init(){ this.btnAdd = (Button)this.findViewById(R.id.btnAdd); this.btnDelete = (Button)this.findViewById(R.id.btnDelete); this.btnAdd.setOnClickListener(this); this.btnDelete.setOnClickListener(this); // this.btnAdd.setOnClickListener(new View.OnClickListener() { // @Override // public void onClick(View view) { // // } // }); // Student zhangsan = new Student("张三","软件-1403","18899999999","12345678"); // StudentService.add(zhangsan); // // Student lisi = new Student("李四","电子-1401","16644445444","234533"); // StudentService.add(lisi); // // Student wangwu = new Student("王五","计科-1401","18891111111","3322322"); // StudentService.add(wangwu); // // Student wangwu1 = new Student("王五1","计科-1401","18891111111","3322322"); // StudentService.add(wangwu1); // // Student wangwu2 = new Student("王五2","计科-1401","18891111111","3322322"); // StudentService.add(wangwu2); // // // Student wangwu3 = new Student("王五3","计科-1401","18891111111","3322322"); // StudentService.add(wangwu3); // // // Student wangwu4 = new Student("王五4","计科-1401","18891111111","3322322"); // StudentService.add(wangwu4); // // StudentService.add(wangwu4); // StudentService.add(wangwu4); // StudentService.add(wangwu4); // StudentService.add(wangwu4); // StudentService.add(wangwu4); // StudentService.add(wangwu4); // StudentService.add(wangwu4); // StudentService.add(wangwu4); // StudentService.add(wangwu4); // StudentService.add(wangwu4); // StudentService.add(wangwu4); // StudentService.add(wangwu4); // StudentService.add(wangwu4); // StudentService.add(wangwu4); // StudentService.add(wangwu4); // StudentService.add(wangwu4); // StudentService.add(wangwu4); // StudentService.add(wangwu4); // StudentService.add(wangwu4); // StudentService.add(wangwu4); // StudentService.add(wangwu4); // StudentService.add(wangwu4); // StudentService.add(wangwu4); // StudentService.add(wangwu4); // StudentService.add(wangwu4); // StudentService.add(wangwu4); // StudentService.add(wangwu4); // StudentService.add(wangwu4); // StudentService.add(wangwu4); // StudentService.add(wangwu4); this.students = StudentService.getStudents(); this.lvStudents = (ListView)this.findViewById(R.id.lvStudents); this.initData(); } private void initData(){ this.data = new ArrayList<Map<String,Object>>(); for (int index=0;index<this.students.size();index++){ Student student = this.students.get(index); Map<String,Object> map = new HashMap<String,Object>(); map.put("name",student.getName()); map.put("major",student.getMajor()); map.put("phoneNumber",student.getPhoneNumber()); map.put("qq",student.getQq()); data.add(map); } this.adapter = new SimpleAdapter(this,data,R.layout.student_item, new String[]{"name","major","phoneNumber","qq"}, new int[]{R.id.txtName,R.id.txtMajor,R.id.txtPhoneNumber,R.id.txtQQ}); this.lvStudents.setAdapter(this.adapter); } @Override public void onClick(View view) { switch (view.getId()) { case R.id.btnAdd: final View dialogView = LayoutInflater.from(MainActivity.this).inflate(R.layout.add_student,null); new AlertDialog.Builder(this) .setTitle(R.string.add_student) .setView(dialogView) //.setView(R.layout.add_student) .setPositiveButton(R.string.ok, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialogInterface, int i) { //Toast.makeText(MainActivity.this, "确定", Toast.LENGTH_SHORT).show(); String name = ((EditText)dialogView.findViewById(R.id.txtName)).getText().toString(); String major = ((EditText)dialogView.findViewById(R.id.txtMajor)).getText().toString(); String phoneNumber = ((EditText)dialogView.findViewById(R.id.txtPhoneNumber)).getText().toString(); String qq = ((EditText)dialogView.findViewById(R.id.txtQQ)).getText().toString(); Student student = new Student(name,major,phoneNumber,qq); students.add(student); initData(); } }) .setNegativeButton(R.string.cancel, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialogInterface, int i) { //Toast.makeText(MainActivity.this, "取消", Toast.LENGTH_SHORT).show(); } }) .show(); break; case R.id.btnDelete: final int childCount = lvStudents.getChildCount(); if (childCount==0) return; new AlertDialog.Builder(MainActivity.this) .setTitle(R.string.confirm) .setMessage(getString(R.string.are_you_sure_to_delete)) .setPositiveButton(R.string.ok, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialogInterface, int i) { //Toast.makeText(MainActivity.this, String.valueOf(childCount), Toast.LENGTH_SHORT).show(); for (int index = childCount - 1; index >= 0;index--){ View itemView = lvStudents.getChildAt(index); CheckBox chkChecked = (CheckBox) itemView.findViewById(R.id.chkChecked); if(chkChecked.isChecked()){ students.remove(index); } } initData(); } }) .setNegativeButton(R.string.cancel,null) .show(); break; } } }