基于Android+SQLite的通讯录APP开发

通讯录APP功能说明：

APP需要实现如下功能：

a.普通用户：

（1）用户管理。包括用户注册，用户登录、用户信息管理。

（2）显示联系人。用户登录成功后，可以显示所有该用户的联系人。

（3）添加联系人。用户登录成功后，可增加和用户联系人。

（4）查找联系人。用户登录成功后，可以精确查找指定联系人或按类别查找联系人。

（5）删除指定条件联系人。用户登录成功后，可以删除用户个人相关的联系人。

（6）修改联系人信息。用户登录成功后，可以修改用户相关的联系人信息。

b.管理员用户：

对系统的用户进行管理。包括重置密码、注销用户等功能。

效果展示

MySQLiteOpenHelper.java

源码在资源处可下载

https://download.csdn.net/download/2302_79553009/89665188

登录与注册

JAVA

Mainactivity.java

package com.example.addressbook;

import androidx.appcompat.app.AppCompatActivity;

import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;

import com.example.addressbook.Util.ToastUtil;

public class MainActivity extends AppCompatActivity {

    private Button login,reset;
    private TextView register;
    private EditText edName,edPassword;
    private MySQLiteOpenHelper mySQLiteOpenHelper;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        mySQLiteOpenHelper = new MySQLiteOpenHelper(this);
        init();
    }

    public void init(){
        login = findViewById(R.id.login);
        register = findViewById(R.id.register);
        edName = findViewById(R.id.edName);
        edPassword = findViewById(R.id.edPassword);
        reset = findViewById(R.id.reset);

    }

    public void login(View view) {
        String name = edName.getText().toString().trim();
        String password = edPassword.getText().toString().trim();

        int login = mySQLiteOpenHelper.U_login(name,password);
        if(login == 1){
            ToastUtil.toastShort(this,"登录成功!欢迎管理员!");
            Intent intent = new Intent(this,ManagerAbActivity.class);
            startActivity(intent);
        }else if(login == 2){
            ToastUtil.toastShort(this,"登录成功!欢迎会员!");
            Intent intent = new Intent(this,UserAbActivity.class);
            startActivity(intent);
        }else{
            ToastUtil.toastShort(this,"登录失败");
        }
    }

    public void register(View view) {
        Intent intent = new Intent(this, RegisterActivity.class);
        startActivity(intent);
    }

    public void reset(View view) {
        edName.setText("");
        edPassword.setText("");
    }

}

Register.java

package com.example.addressbook;

import androidx.appcompat.app.AppCompatActivity;

import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;

import com.example.addressbook.Util.ToastUtil;
import com.example.addressbook.bean.User;

public class RegisterActivity extends AppCompatActivity {

    private EditText name1,password1;
    private TextView l;
    private TextView register;
    private Button reset;
    private MySQLiteOpenHelper mySQLiteOpenHelper;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_register);
        mySQLiteOpenHelper = new MySQLiteOpenHelper(this);
        init();
    }

    public void init(){
        name1 = findViewById(R.id.edName);
        password1 = findViewById(R.id.edPassword);
        register = findViewById(R.id.register);
        l = findViewById(R.id.L);
        reset = findViewById(R.id.reset);
    }
    public void register(View view) {
        String name = name1.getText().toString().trim();
        String password = password1.getText().toString().trim();

        User u = new User(name,password);
        long r = mySQLiteOpenHelper.U_register(u);
        if(r!=-1){
            ToastUtil.toastShort(this,"注册成功");
            Intent intent = new Intent(this,MainActivity.class);
            startActivity(intent);
        }else{
            ToastUtil.toastShort(this,"注册失败");
        }
    }

    public void Log(View view) {
        Intent intent = new Intent(this,MainActivity.class);
        startActivity(intent);
    }

    public void reset(View view) {
        name1.setText("");
        password1.setText("");
    }
}

XML

activity_main.xml

activity_register.xml

用户端

联系人展示

java

UserAbActivity.java

package com.example.addressbook;

import androidx.appcompat.app.AppCompatActivity;
import androidx.appcompat.widget.Toolbar;

import android.content.Intent;
import android.os.Bundle;
import android.text.Editable;
import android.text.TextWatcher;
import android.view.MotionEvent;
import android.view.View;
import android.widget.EditText;
import android.widget.ListView;

import com.example.addressbook.adapter.PeopleAdapter;
import com.example.addressbook.bean.People;
import com.example.addressbook.dao.PeopleDao;

import java.util.Comparator;
import java.util.List;

public class UserAbActivity extends AppCompatActivity {

    private MySQLiteOpenHelper mySQLiteOpenHelper;
    private EditText search;

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

        Toolbar toolbar = this.findViewById(R.id.toolbar);
        mySQLiteOpenHelper = new MySQLiteOpenHelper(this);


        //加载列表

        List result = mySQLiteOpenHelper.getAllPeople();
        ListView listView = findViewById(R.id.book);

        if(result.size()==0){
            listView.setAdapter(null);//无显示
        }else{
            //需要对list按字母进行排序

            result.sort(new Comparator() {
                @Override
                public int compare(People people, People t1) {
                    return people.getBeginLetter().compareTo(t1.getBeginLetter());
                }
            });

            PeopleAdapter peopleAdapter = new PeopleAdapter(UserAbActivity.this,result);
            listView.setAdapter(peopleAdapter);
        }
        init();

        //搜索功能

        search.setOnTouchListener(new View.OnTouchListener() {
            @Override
            public boolean onTouch(View view, MotionEvent motionEvent) {
                listView.setAdapter(null);

                String title = search.getText().toString();
                List temp = null;
                if(title.isEmpty()){
                    temp = mySQLiteOpenHelper.getAllPeople();
                }else{
                    temp = mySQLiteOpenHelper.getAllPeople(title);
                }
                temp.sort(new Comparator() {
                    @Override
                    public int compare(People people, People t1) {
                        return people.getBeginLetter().compareTo(t1.getBeginLetter());
                    }
                });

                PeopleAdapter peopleAdapter = new PeopleAdapter(UserAbActivity.this,temp);
                listView.setAdapter(peopleAdapter);

                return false;
            }
        });
        search.addTextChangedListener(new TextWatcher() {
            @Override
            public void beforeTextChanged(CharSequence charSequence, int i, int i1, int i2) {

            }

            @Override
            public void onTextChanged(CharSequence charSequence, int i, int i1, int i2) {

            }

            @Override
            public void afterTextChanged(Editable editable) {
                listView.setAdapter(null);

                String title = search.getText().toString();
                List temp = null;
                if(title.isEmpty()){
                    temp = mySQLiteOpenHelper.getAllPeople();
                }else{
                    temp = mySQLiteOpenHelper.getAllPeople(title);
                }
                temp.sort(new Comparator() {
                    @Override
                    public int compare(People people, People t1) {
                        return people.getBeginLetter().compareTo(t1.getBeginLetter());
                    }
                });

                PeopleAdapter peopleAdapter = new PeopleAdapter(UserAbActivity.this,temp);
                listView.setAdapter(peopleAdapter);
            }
        });



    }



    public void init(){
        search = findViewById(R.id.search);
    }






    public void details(View view) {



//        Intent intent = new Intent(UserAbActivity.this,DetailsActivity.class);
//        intent.putExtra("id",people.getId());
//        startActivity(intent);
    }

    public void addData(View view) {
        Intent intent = new Intent(UserAbActivity.this,AddActivity.class);
        startActivity(intent);

    }
}

xml

activity_user_ab.xml

book_style.xml

联系人详情

java

 DetailsActivity.java

package com.example.addressbook;

import androidx.appcompat.app.AppCompatActivity;

import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.ImageView;
import android.widget.TextView;

import com.example.addressbook.Util.ToastUtil;
import com.example.addressbook.bean.People;

public class DetailsActivity extends AppCompatActivity {

    private ImageView head;
    private TextView detail_name;
    private TextView detail_number;
    private TextView detail_remark;
    private TextView detail_sex;
    private MySQLiteOpenHelper mySQLiteOpenHelper;

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

        mySQLiteOpenHelper = new MySQLiteOpenHelper(this);
        init();


        //详情信息同步
        String id = getIntent().getStringExtra("id");
        People people = mySQLiteOpenHelper.getOnePeople(id);


        //根据性别设置头像
        if(people.getSex().equals("男")){
            head.setImageResource(R.drawable.details_man);
        }else{
            head.setImageResource(R.drawable.details_woman);
        }

        //设置名字

        detail_name.setText(people.getName());
        detail_number.setText(people.getPhoneNumber());
        detail_sex.setText(people.getSex());
        detail_remark.setText(people.getRemark());

    }

    private void init(){
        head = findViewById(R.id.head);
        detail_name = findViewById(R.id.detail_name);
        detail_number = findViewById(R.id.detail_number);
        detail_remark = findViewById(R.id.detail_remark);
        detail_sex = findViewById(R.id.detail_sex);
    }




    public void details_delete(View view) {
        String id = getIntent().getStringExtra("id");

        mySQLiteOpenHelper.dl_delete(id);
        ToastUtil.toastShort(DetailsActivity.this,"联系人删除成功!");
        Intent intent = new Intent(DetailsActivity.this,UserAbActivity.class);
        startActivity(intent);
    }

    public void details_update(View view) {
        String id = getIntent().getStringExtra("id");

        Intent intent = new Intent(DetailsActivity.this,UpdateActivity.class);
        intent.putExtra("id",id);
        startActivity(intent);
    }



}

xml

 activity_details.xml

联系人信息修改

java

 AddActivity.java

package com.example.addressbook;

import androidx.appcompat.app.AppCompatActivity;

import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.EditText;
import android.widget.RadioButton;

import com.example.addressbook.Util.ToastUtil;

public class AddActivity extends AppCompatActivity {

    private EditText add_name,add_number,add_remark;
    private RadioButton rb_man,rb_woman;

    private MySQLiteOpenHelper mySQLiteOpenHelper;

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

        mySQLiteOpenHelper = new MySQLiteOpenHelper(this);

        init();
    }

    private void init(){
        add_name=findViewById(R.id.add_name);
        add_number=findViewById(R.id.add_number);
        add_remark=findViewById(R.id.add_remark);
        rb_man=findViewById(R.id.rb_man);
        rb_woman=findViewById(R.id.rb_woman);
    }

    public void im_add(View view) {

        Intent intent = getIntent();
        String id = intent.getStringExtra("id");

        String name=add_name.getText().toString().trim();
        String number=add_number.getText().toString().trim();
        String remark=add_remark.getText().toString().trim();

        if(name.isEmpty()){
            ToastUtil.toastShort(AddActivity.this,"请输入姓名!");
        }else if(number.isEmpty()){
            ToastUtil.toastShort(AddActivity.this,"请输入手机号!");
        }else if(remark.isEmpty()){
            ToastUtil.toastShort(AddActivity.this,"请输入备注!");
        }
        String sex="女";
        if(rb_man.isChecked()){
            sex="男";
        }

        mySQLiteOpenHelper.add_data(name,number,sex,remark);
        ToastUtil.toastShort(AddActivity.this,"添加成功");


    }
}

updateActivity.java

package com.example.addressbook;

import androidx.appcompat.app.AppCompatActivity;

import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.EditText;
import android.widget.RadioButton;

import com.example.addressbook.Util.ToastUtil;
import com.example.addressbook.bean.People;

public class UpdateActivity extends AppCompatActivity {

    private EditText up_name,up_number,up_remark;
    private RadioButton rb_man,rb_woman;

    private MySQLiteOpenHelper mySQLiteOpenHelper;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_updateactivity);
        mySQLiteOpenHelper = new MySQLiteOpenHelper(this);

        init();

        Intent intent = getIntent();
        String id = intent.getStringExtra("id");

        People people=mySQLiteOpenHelper.getOnePeople(id);

        up_name.setText(people.getName());
        up_number.setText(people.getPhoneNumber());
        if(people.getSex().equals("男")){
            rb_man.setChecked(true);
        }else{
            rb_woman.setChecked(true);
        }

        up_remark.setText(people.getRemark());



    }

    private void init(){
        up_name=findViewById(R.id.up_name);
        up_number=findViewById(R.id.up_number);
        up_remark=findViewById(R.id.up_remark);
        rb_man=findViewById(R.id.rb_man);
        rb_woman=findViewById(R.id.rb_woman);
    }




    public void im_update(View view) {

        Intent intent = getIntent();
        String id = intent.getStringExtra("id");

        String name=up_name.getText().toString().trim();
        String number=up_number.getText().toString().trim();
        String sex="女";
        if(rb_man.isChecked()){
            sex="男";
        }
        String remark=up_remark.getText().toString().trim();

        if(name.isEmpty()){
            ToastUtil.toastShort(UpdateActivity.this,"请输入姓名!");
        }else if(number.isEmpty()){
            ToastUtil.toastShort(UpdateActivity.this,"请输入手机号!");
        }else if(remark.isEmpty()){
            ToastUtil.toastShort(UpdateActivity.this,"请输入备注!");
        }

        Intent intent1 = new Intent(UpdateActivity.this,UserAbActivity.class);
        startActivity(intent1);

        mySQLiteOpenHelper.updateData(name,number,sex,remark,id);
        ToastUtil.toastShort(UpdateActivity.this,"更改成功");




//        People people = new People();
//        people.setName(name);
//        people.setPhoneNumber(number);
//        people.setRemark(remark);
//        people.setSex(sex);
//
//        long rowId = mySQLiteOpenHelper.updateData(people);
//        if(rowId>0){
//            //工具类ToastUtil的使用
//            Intent intent = new Intent(UpdateActivity.this,DetailsActivity.class);
//            startActivity(intent);
//            ToastUtil.toastShort(this,"更新成功!");
//        }else{
//            ToastUtil.toastShort(this,"没有数据被更新!");
//        }



    }
}

xml

 activity_add.xml

activity_update.xml

管理员端

用户展示及注销用户与重置密码

java

ManagerAbActivity.java

package com.example.addressbook;

import androidx.appcompat.app.AppCompatActivity;
import androidx.appcompat.widget.Toolbar;

import android.os.Bundle;
import android.widget.ListView;

import com.example.addressbook.adapter.PeopleAdapter;
import com.example.addressbook.adapter.UserAdapter;
import com.example.addressbook.bean.People;
import com.example.addressbook.bean.User;

import java.util.Comparator;
import java.util.List;

public class ManagerAbActivity extends AppCompatActivity {

    private MySQLiteOpenHelper mySQLiteOpenHelper;

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


        mySQLiteOpenHelper = new MySQLiteOpenHelper(this);


        //加载列表
        List result = mySQLiteOpenHelper.getAllUser();
        ListView listView = findViewById(R.id.book);

        if(result.size()==0){
            listView.setAdapter(null);//无显示
        }else{


            UserAdapter userAdapter = new UserAdapter(ManagerAbActivity.this,result);
            listView.setAdapter(userAdapter);
        }

    }
}

ManagerImActivity.java

package com.example.addressbook;

import androidx.appcompat.app.AppCompatActivity;

import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.TextView;

import com.example.addressbook.Util.ToastUtil;
import com.example.addressbook.bean.People;
import com.example.addressbook.bean.User;

public class ManagerImActivity extends AppCompatActivity {

    private EditText user_name;
    private EditText user_password;
    private MySQLiteOpenHelper mySQLiteOpenHelper;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_manager_im);
        mySQLiteOpenHelper = new MySQLiteOpenHelper(this);




        init();

        //信息同步

        Intent intent = getIntent();
        String id = intent.getStringExtra("id");

        User user=mySQLiteOpenHelper.getOneUser(id);
        user_name.setText(user.getName());
        user_password.setText(user.getPassword());
    }

    private void init(){
        user_name = findViewById(R.id.user_name);
        user_password = findViewById(R.id.user_passowrd);
    }


    public void user_reset(View view) {
        Intent intent = getIntent();
        String id = intent.getStringExtra("id");

        String name=user_name.getText().toString().trim();
        String password=user_password.getText().toString().trim();

        if(name.isEmpty()){
            ToastUtil.toastShort(ManagerImActivity.this,"请输入姓名!");
        }else if(password.isEmpty()){
            ToastUtil.toastShort(ManagerImActivity.this,"请输入密码!");
        }

        Intent intent1 = new Intent(ManagerImActivity.this,ManagerAbActivity.class);
        startActivity(intent1);

        mySQLiteOpenHelper.updateUser(name,password,id);
        ToastUtil.toastShort(ManagerImActivity.this,"更改成功");
    }

    public void user_delete(View view) {
        String id = getIntent().getStringExtra("id");

        mySQLiteOpenHelper.user_delete(id);
        ToastUtil.toastShort(ManagerImActivity.this,"联系人删除成功!");
        Intent intent = new Intent(ManagerImActivity.this,ManagerAbActivity.class);
        startActivity(intent);
    }
}

xml

activity_manager_ab.xml

activity_manager_im.xml