【鸿蒙】鸿蒙App应用-《记账软件》登录，注册，找回密码功能-Toy模板网

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1.登录功能

从【鸿蒙】鸿蒙App应用-《记账软件》开发步骤欢迎引导页进入之后，完成登录功能。界面效果如图

【鸿蒙】鸿蒙App应用-《记账软件》登录，注册，找回密码功能

2.布局文件的搭建

在layout文件夹下新建xml文件，布局代码如下:

<?xml version="1.0" encoding="utf-8"?>
<DirectionalLayout
    xmlns:ohos="http://schemas.huawei.com/res/ohos"
    ohos:height="match_parent"
    ohos:width="match_parent"
    ohos:orientation="vertical">

    <Text
        ohos:height="match_content"
        ohos:background_element="#FFDA44"
        ohos:width="match_parent"
        ohos:text="登 录"
        ohos:padding="10fp"
        ohos:text_alignment="center"
        ohos:text_font="HwChinese-medium"
        ohos:text_weight="1200"
        ohos:text_color="#000"
        ohos:text_size="25fp"/>

    <DirectionalLayout
        ohos:height="match_content"
        ohos:width="match_parent"
        ohos:weight="2"
        ohos:orientation="vertical">

        <DirectionalLayout
            ohos:height="match_content"
            ohos:width="match_parent"
            ohos:alignment="vertical_center"
            ohos:background_element="$graphic:background_textfield"
            ohos:margin="20fp"
            ohos:orientation="horizontal">

            <Image
                ohos:height="50vp"
                ohos:width="50vp"
                ohos:image_src="$media:lr_ico_phone"
                ohos:left_margin="10vp"
                ohos:scale_mode="stretch"/>

            <TextField
                ohos:id="$+id:tv_user"
                ohos:height="match_content"
                ohos:width="match_parent"
                ohos:hint="手机号"
                ohos:text_input_type="pattern_number"
                ohos:hint_color="#aaaaaa"
                ohos:padding="15vp"
                ohos:text_color="#aaaaaa"
                ohos:text_size="20fp"/>

        </DirectionalLayout>

        <DirectionalLayout
            ohos:height="match_content"
            ohos:width="match_parent"
            ohos:alignment="vertical_center"
            ohos:background_element="$graphic:background_textfield"
            ohos:left_margin="20fp"
            ohos:orientation="horizontal"
            ohos:right_margin="20fp">

            <Image
                ohos:height="50vp"
                ohos:width="50vp"
                ohos:image_src="$media:lr_ico_pass"
                ohos:left_margin="10vp"
                ohos:scale_mode="stretch"/>

            <TextField
                ohos:id="$+id:tv_psd"
                ohos:height="match_content"
                ohos:width="match_parent"
                ohos:hint="账号密码"
                ohos:text_input_type="pattern_password"
                ohos:hint_color="#aaaaaa"
                ohos:padding="15vp"
                ohos:text_color="#aaaaaa"
                ohos:text_size="20fp"/>

        </DirectionalLayout>

        <Button
            ohos:id="$+id:btn_login"
            ohos:height="match_content"
            ohos:width="match_parent"
            ohos:background_element="$graphic:background_button_login"
            ohos:margin="20fp"
            ohos:padding="10fp"
            ohos:text="登录"
            ohos:text_color="#ffffff"
            ohos:text_size="25fp"
            />

        <DirectionalLayout
            ohos:height="match_content"
            ohos:width="match_parent"
            ohos:left_margin="20fp"
            ohos:orientation="horizontal"
            ohos:right_margin="20fp">

            <Text
                ohos:id="$+id:tv_register"
                ohos:height="match_content"
                ohos:width="match_content"
                ohos:text="注册"
                ohos:text_alignment="left"
                ohos:text_color="#FFDA44"
                ohos:text_size="20fp"
                ohos:weight="1"/>

            <Text
                ohos:id="$+id:tv_findpsd"
                ohos:height="match_content"
                ohos:width="match_content"
                ohos:text="找回密码"
                ohos:text_alignment="right"
                ohos:text_color="#FFDA44"
                ohos:text_size="20fp"
                ohos:weight="1"/>
        </DirectionalLayout>
    </DirectionalLayout>

    <DirectionalLayout
        ohos:height="match_content"
        ohos:width="match_parent"
        ohos:weight="1"
        ohos:orientation="vertical">
        <Text
            ohos:height="match_content"
            ohos:width="match_parent"
            ohos:text_size="20fp"
            ohos:text_alignment="center"
            ohos:text_color="#666"
            ohos:text="*第三方账号快速登录*"/>
        <DirectionalLayout
            ohos:height="match_content"
            ohos:width="match_parent"
            ohos:margin="30fp"
            ohos:alignment="horizontal_center"
            ohos:orientation="horizontal">

            <DirectionalLayout
                ohos:height="match_content"
                ohos:width="match_content"
                ohos:weight="1"
                ohos:alignment="center">
                <Image
                    ohos:height="60fp"
                    ohos:width="60fp"
                    ohos:scale_mode="stretch"
                    ohos:image_src="$media:loadweixin"/>
                <Text
                    ohos:height="match_content"
                    ohos:width="match_content"
                    ohos:text_size="20fp"
                    ohos:text="微信"/>
            </DirectionalLayout>
            <DirectionalLayout
                ohos:height="match_content"
                ohos:width="match_content"
                ohos:weight="1"
                ohos:alignment="center">
                <Image
                    ohos:height="60fp"
                    ohos:width="60fp"
                    ohos:scale_mode="stretch"
                    ohos:image_src="$media:qq"/>
                <Text
                    ohos:height="match_content"
                    ohos:width="match_content"
                    ohos:text_size="20fp"
                    ohos:text="QQ"/>
            </DirectionalLayout>
            <DirectionalLayout
                ohos:height="match_content"
                ohos:width="match_content"
                ohos:weight="1"
                ohos:alignment="center">
                <Image
                    ohos:height="60fp"
                    ohos:width="60fp"
                    ohos:scale_mode="stretch"
                    ohos:image_src="$media:weibo"/>
                <Text
                    ohos:height="match_content"
                    ohos:width="match_content"
                    ohos:text_size="20fp"
                    ohos:text="微博"/>
            </DirectionalLayout>

        </DirectionalLayout>

    </DirectionalLayout>

</DirectionalLayout>

在graphic文件夹中新建background_button_login.xml文件，用于控制登录按钮的显示样式

<?xml version="1.0" encoding="utf-8"?>
<shape
    xmlns:ohos="http://schemas.huawei.com/res/ohos"
    ohos:shape="rectangle">
    <corners
        ohos:radius="20"
        />
    <solid
        ohos:color="#FFE3C33F"/>
</shape>

在graphic文件夹中新建background_textfield.xml文件，用于控制手机号和密码输入框的边框样式

<?xml version="1.0" encoding="utf-8"?>
<shape
    xmlns:ohos="http://schemas.huawei.com/res/ohos"
    ohos:shape="rectangle">
    <corners
        ohos:radius="20"
        />
    <solid
        ohos:color="#FFffff"/>
    <stroke
        ohos:color="#FFDA44"
        ohos:width="10"/>
</shape>

结合当前组件和资源图片文本搭建登陆页面的布局，主题以黄色为主。

3.创建LoginAbilitySlice类完成登录功能

在src文件夹下的包中新建登录的界面，并继承至BaseAilitySlice基类。

加载布局之后，定义initView方法，初始化这些组件的对象。

/**
     * 初始化组件
     */
    private void initView() {
        tv_user= (Text) this.findComponentById(ResourceTable.Id_tv_user);
        tv_findpsd= (Text) this.findComponentById(ResourceTable.Id_tv_findpsd);
        tv_psd= (Text) this.findComponentById(ResourceTable.Id_tv_psd);
        tv_register= (Text) this.findComponentById(ResourceTable.Id_tv_register);
        btn_login= (Button) this.findComponentById(ResourceTable.Id_btn_login);
        tv_register.setClickedListener(listener);
        tv_findpsd.setClickedListener(listener);
        btn_login.setClickedListener(listener);
    }

设置登录按钮，注册，找回密码的监听事件

private Component.ClickedListener listener =new Component.ClickedListener() {
        @Override
        public void onClick(Component component) {
            switch (component.getId()){
                case ResourceTable.Id_btn_login:
                    //登录按钮
                    String name=tv_user.getText();
                    String psd=tv_psd.getText();
                    Map map=new HashMap();
                    map.put("phone",name);
                    map.put("psd",psd);
                    User user= DBUtil.getInstance(rs).login("tb_user",map);
                    if (user==null)
                        showToastDialogShort("登录失败");
                    else {
                        showToastDialogShort("登录成功");
                        CommonUtil.user=user;
                        present(new MainAbilitySlice(),new Intent());
                        terminate();
                    }
                    break;
                case ResourceTable.Id_tv_register:
                    //注册
                    present(new RegisterAilitySlice(),new Intent());
                    break;
                case ResourceTable.Id_tv_findpsd:
                    //找回密码
                    break;
            }
        }
    };

完整代码如下:

package com.example.bookkeepproject.slice;

import com.example.bookkeepproject.ResourceTable;
import com.example.bookkeepproject.entity.User;
import com.example.bookkeepproject.utils.CommonUtil;
import com.example.bookkeepproject.utils.DBUtil;
import ohos.aafwk.content.Intent;
import ohos.agp.components.Button;
import ohos.agp.components.Component;
import ohos.agp.components.Text;

import java.util.HashMap;
import java.util.Map;

/**
 * 主子界面
 */
public class LoginAbilitySlice extends BaseAbilitySlice {
    private Text tv_user,tv_psd,tv_register,tv_findpsd;
    private Button btn_login;
    @Override
    public void onStart(Intent intent) {
        super.onStart(intent);
        super.setUIContent(ResourceTable.Layout_ability_login);
        initView();
    }

    /**
     * 初始化组件
     */
    private void initView() {
        tv_user= (Text) this.findComponentById(ResourceTable.Id_tv_user);
        tv_findpsd= (Text) this.findComponentById(ResourceTable.Id_tv_findpsd);
        tv_psd= (Text) this.findComponentById(ResourceTable.Id_tv_psd);
        tv_register= (Text) this.findComponentById(ResourceTable.Id_tv_register);
        btn_login= (Button) this.findComponentById(ResourceTable.Id_btn_login);
        tv_register.setClickedListener(listener);
        tv_findpsd.setClickedListener(listener);
        btn_login.setClickedListener(listener);
    }

    private Component.ClickedListener listener =new Component.ClickedListener() {
        @Override
        public void onClick(Component component) {
            switch (component.getId()){
                case ResourceTable.Id_btn_login:
                    //登录按钮
                    String name=tv_user.getText();
                    String psd=tv_psd.getText();
                    Map map=new HashMap();
                    map.put("phone",name);
                    map.put("psd",psd);
                    User user= DBUtil.getInstance(rs).login("tb_user",map);
                    if (user==null)
                        showToastDialogShort("登录失败");
                    else {
                        showToastDialogShort("登录成功");
                        CommonUtil.user=user;
                        present(new MainAbilitySlice(),new Intent());
                        terminate();
                    }
                    break;
                case ResourceTable.Id_tv_register:
                    //注册
                    present(new RegisterAilitySlice(),new Intent());
                    break;
                case ResourceTable.Id_tv_findpsd:
                    //找回密码
                    break;
            }
        }
    };

    @Override
    public void onActive() {
        super.onActive();
    }

    @Override
    public void onForeground(Intent intent) {
        super.onForeground(intent);
    }
}

4.定义用户实体类

完成登录功能需要获得当前登录的用户的个人信息，并进行存储。

package com.example.bookkeepproject.entity;

public class User {
    private int id;
    private String name;
    private String psd;
    private String phone;
    private String sex;
    private int age;

    public User(int id, String name, String psd, String phone, String sex, int age) {
        this.id = id;
        this.name = name;
        this.psd = psd;
        this.phone = phone;
        this.sex = sex;
        this.age = age;
    }

    @Override
    public String toString() {
        return "User{" +
                "id=" + id +
                ", name='" + name + '\'' +
                ", psd='" + psd + '\'' +
                ", phone='" + phone + '\'' +
                ", sex='" + sex + '\'' +
                ", age=" + age +
                '}';
    }

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getPsd() {
        return psd;
    }

    public void setPsd(String psd) {
        this.psd = psd;
    }

    public String getPhone() {
        return phone;
    }

    public void setPhone(String phone) {
        this.phone = phone;
    }

    public String getSex() {
        return sex;
    }

    public void setSex(String sex) {
        this.sex = sex;
    }

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }
}

5.创建Sqlite关系型数据库

新建一个工具包Utils，在该包下存放整个项目需要用的工具类，这里需要创建数据库工具类以及执行sql的工具类

5.1创建数据库工具类

在utils包下新建MyHelper类继承至RdbOpenCallback类，实现抽象类中为实现的方法。

package com.example.bookkeepproject.utils;

import ohos.app.Context;
import ohos.data.DatabaseHelper;
import ohos.data.preferences.Preferences;
import ohos.data.rdb.RdbOpenCallback;
import ohos.data.rdb.RdbStore;
import ohos.data.rdb.StoreConfig;

/**
 * 创建sqlite数据库的辅助类
 */
public class MyHelper extends RdbOpenCallback {
    DatabaseHelper db;
    private RdbStore rs;
    private static MyHelper helper;
    private Preferences preferences;
    // id,name,info,type
    private String tb_user = "create table tb_user(id Integer primary key autoincrement,name,phone,psd,sex,age)";
    //支出，收入类型，具体支出，收入来源，来源的图片，年，月，日，金额，备注信息
    private String tb_jz = "create table tb_jz(id Integer primary key autoincrement,userid,type,subtype,image,year,month,day,money,info)";
    //单例设计模式
    public static RdbStore getInstance(Context context,String DBName){
        if (helper==null)
            helper=new MyHelper(context,DBName);
        return helper.rs;

    }

    public static Preferences getInstance(String fileName,Context context){
        if (helper==null)
            helper=new MyHelper(fileName,context);
        return helper.preferences;

    }

    public MyHelper(String fileName,Context context) {
        db=new DatabaseHelper(context);
        preferences=db.getPreferences(fileName);
    }

    public MyHelper(Context context,String DBName) {
        db=new DatabaseHelper(context);
        //创建数据库
        StoreConfig config=StoreConfig.newDefaultConfig(DBName);
        rs=db.getRdbStore(config,1,this,null);
    }

    @Override
    public void onCreate(RdbStore rdbStore) {
        //创建表
        rdbStore.executeSql(tb_user);
        rdbStore.executeSql(tb_jz);
        rdbStore.executeSql("insert into tb_user(name,phone,psd,sex,age) values('1','1','1','1',1)");
    }

    @Override
    public void onUpgrade(RdbStore rdbStore, int i, int i1) {
        System.out.println("版本已更新");
    }
}

必须实现构造方法，以及创建数据库的方法和版本更新的方法

5.2 创建执行sql操作类

在utils包中新建DBUtil工具类，并采用单例模式减少对象的重复创建而导致影响软件运行速度。

package com.example.bookkeepproject.utils;

import com.example.bookkeepproject.entity.BookKeepInfo;
import com.example.bookkeepproject.entity.User;
import ohos.app.Context;
import ohos.data.rdb.RdbPredicates;
import ohos.data.rdb.RdbStore;
import ohos.data.rdb.ValuesBucket;
import ohos.data.resultset.ResultSet;

import java.util.ArrayList;
import java.util.List;
import java.util.Map;

/**
 * 数据库工具类
 */
public class DBUtil {
    public static DBUtil db;
    private static RdbStore rs;

    //单例设计模式
    public static DBUtil getInstance(RdbStore rs) {
        if (db == null)
            db = new DBUtil();
        DBUtil.rs = rs;
        return db;
    }


   

    /**
     * 登录功能
     *
     * @param tableName
     * @param map
     * @return
     */
    public User login(String tableName, Map<String, Object> map) {
        User user = null;
        //定义要查询的字段数组
        String[] columns = new String[]{"id", "name", "age", "phone", "sex", "psd"};
        //设置要查询的表，以及查询的条件
        RdbPredicates rdbPredicates = new RdbPredicates(tableName);
        for (Map.Entry<String, Object> e : map.entrySet()) {
            rdbPredicates.equalTo(e.getKey(), (String) e.getValue());
        }
        ResultSet resultSet = rs.query(rdbPredicates, columns);
        if (resultSet.goToNextRow()) {
            int id = resultSet.getInt(resultSet.getColumnIndexForName("id"));
            String name = resultSet.getString(resultSet.getColumnIndexForName("name"));
            String psd = resultSet.getString(resultSet.getColumnIndexForName("psd"));
            String phone = resultSet.getString(resultSet.getColumnIndexForName("phone"));
            String sex = resultSet.getString(resultSet.getColumnIndexForName("sex"));
            int age = resultSet.getInt(resultSet.getColumnIndexForName("age"));
            user = new User(id, name, psd, phone, sex, age);
        }
        return user;
    }


}

6.注册功能

通过从登录的界面点击“注册”进行页面跳转至注册界面，完成注册的功能操作。

【鸿蒙】鸿蒙App应用-《记账软件》登录，注册，找回密码功能

6.1新建注册页面的xml布局文件

在layout文件夹中新建xml文件，布局代码如下:

<?xml version="1.0" encoding="utf-8"?>
<ScrollView
    xmlns:ohos="http://schemas.huawei.com/res/ohos"
    ohos:height="match_parent"
    ohos:width="match_parent"
    >

    <DirectionalLayout
        ohos:height="match_content"
        ohos:width="match_parent"
        ohos:orientation="vertical">

        <Text
            ohos:height="match_content"
            ohos:width="match_parent"
            ohos:background_element="#FFDA44"
            ohos:padding="10fp"
            ohos:text="注 册"
            ohos:text_alignment="center"
            ohos:text_color="#000"
            ohos:text_font="HwChinese-medium"
            ohos:text_size="25fp"
            ohos:text_weight="1200"/>

        <DirectionalLayout
            ohos:height="match_content"
            ohos:width="match_parent"
            ohos:alignment="vertical_center"
            ohos:background_element="$graphic:background_textfield"
            ohos:left_margin="20fp"
            ohos:right_margin="20fp"
            ohos:top_margin="10fp"
            ohos:bottom_margin="10fp"
            ohos:orientation="horizontal">

            <TextField
                ohos:id="$+id:re_user"
                ohos:height="match_content"
                ohos:width="match_parent"
                ohos:hint="用户名"
                ohos:hint_color="#aaaaaa"
                ohos:padding="15vp"
                ohos:text_color="#aaaaaa"
                ohos:text_size="20fp"/>

        </DirectionalLayout>

        <DirectionalLayout
            ohos:height="match_content"
            ohos:width="match_parent"
            ohos:alignment="vertical_center"
            ohos:background_element="$graphic:background_textfield"
            ohos:left_margin="20fp"
            ohos:right_margin="20fp"
            ohos:top_margin="10fp"
            ohos:bottom_margin="10fp"
            ohos:orientation="horizontal">

            <TextField
                ohos:id="$+id:re_psd"
                ohos:height="match_content"
                ohos:width="match_parent"
                ohos:hint="密码"
                ohos:text_input_type="pattern_password"
                ohos:hint_color="#aaaaaa"
                ohos:padding="15vp"
                ohos:text_color="#aaaaaa"
                ohos:text_size="20fp"/>

        </DirectionalLayout>

        <DirectionalLayout
            ohos:height="match_content"
            ohos:width="match_parent"
            ohos:alignment="vertical_center"
            ohos:background_element="$graphic:background_textfield"
            ohos:left_margin="20fp"
            ohos:right_margin="20fp"
            ohos:top_margin="10fp"
            ohos:bottom_margin="10fp"
            ohos:orientation="horizontal">

            <TextField
                ohos:id="$+id:re_phone"
                ohos:height="match_content"
                ohos:width="match_parent"
                ohos:hint="手机号"
                ohos:hint_color="#aaaaaa"
                ohos:text_input_type="pattern_number"
                ohos:padding="15vp"
                ohos:text_color="#aaaaaa"
                ohos:text_size="20fp"/>

        </DirectionalLayout>


        <DirectionalLayout
            ohos:height="match_content"
            ohos:width="match_parent"
            ohos:alignment="vertical_center"
            ohos:background_element="$graphic:background_textfield"
            ohos:left_margin="20fp"
            ohos:right_margin="20fp"
            ohos:top_margin="10fp"
            ohos:bottom_margin="10fp"
            ohos:orientation="horizontal">


            <TextField
                ohos:id="$+id:re_age"
                ohos:height="match_content"
                ohos:width="match_parent"
                ohos:hint="年龄"
                ohos:text_input_type="pattern_number"
                ohos:hint_color="#aaaaaa"
                ohos:padding="15vp"
                ohos:text_color="#aaaaaa"
                ohos:text_size="20fp"/>

        </DirectionalLayout>


        <DirectionalLayout
            ohos:height="match_content"
            ohos:width="match_parent"
            ohos:alignment="vertical_center"
            ohos:background_element="$graphic:background_textfield"
            ohos:left_margin="20fp"
            ohos:right_margin="20fp"
            ohos:top_margin="10fp"
            ohos:bottom_margin="10fp"
            ohos:orientation="horizontal">

            <TextField
                ohos:id="$+id:re_sex"
                ohos:height="match_content"
                ohos:width="match_parent"
                ohos:hint="性别"
                ohos:hint_color="#aaaaaa"
                ohos:padding="15vp"
                ohos:text_color="#aaaaaa"
                ohos:text_size="20fp"/>

        </DirectionalLayout>


        <DirectionalLayout
            ohos:height="match_content"
            ohos:width="match_parent"
            ohos:alignment="vertical_center"
            ohos:background_element="$graphic:background_textfield"
            ohos:left_margin="20fp"
            ohos:right_margin="20fp"
            ohos:top_margin="10fp"
            ohos:bottom_margin="10fp"
            ohos:orientation="horizontal">

            <TextField
                ohos:id="$+id:re_code"
                ohos:height="match_content"
                ohos:width="match_content"
                ohos:hint="验证码"
                ohos:hint_color="#aaaaaa"
                ohos:padding="15vp"
                ohos:text_color="#aaaaaa"
                ohos:text_size="20fp"
                ohos:weight="1"/>

            <Text
                ohos:id="$+id:tv_code"
                ohos:height="50fp"
                ohos:width="80fp"
                ohos:text="1234"
                ohos:text_color="#FFDA44"
                ohos:text_font="HwChinese-medium"
                ohos:text_size="25fp"
                ohos:text_weight="1000"/>

        </DirectionalLayout>


        <Button
            ohos:id="$+id:btn_register"
            ohos:height="match_content"
            ohos:width="match_parent"
            ohos:background_element="$graphic:background_button_login"
            ohos:left_margin="20fp"
            ohos:right_margin="20fp"
            ohos:top_margin="10fp"
            ohos:bottom_margin="10fp"
            ohos:padding="10fp"
            ohos:text="注册"
            ohos:text_color="#ffffff"
            ohos:text_size="25fp"
            />

    </DirectionalLayout>
</ScrollView>

6.2创建RegisterAbilitySlice界面

在slice包中新建AbilitySlice类继承至BaseAbilitySlice类，代码如下:

package com.example.bookkeepproject.slice;

import com.example.bookkeepproject.ResourceTable;
import com.example.bookkeepproject.utils.DBUtil;
import ohos.aafwk.content.Intent;
import ohos.agp.components.Button;
import ohos.agp.components.Component;
import ohos.agp.components.Text;
import ohos.agp.components.TextField;
import ohos.data.rdb.ValuesBucket;

import java.util.HashMap;
import java.util.Map;
import java.util.Random;

public class RegisterAilitySlice extends BaseAbilitySlice {
    private TextField re_user,re_psd,re_phone,re_age,re_sex,re_code;
    private Text tv_code;
    private Button btn_register;
    private int code;
    @Override
    protected void onStart(Intent intent) {
        super.onStart(intent);
        this.setUIContent(ResourceTable.Layout_ability_register);
        initView();
        showRandomCode();
    }

    private void initView() {
        re_age= (TextField) this.findComponentById(ResourceTable.Id_re_age);
        re_user= (TextField) this.findComponentById(ResourceTable.Id_re_user);
        re_psd= (TextField) this.findComponentById(ResourceTable.Id_re_psd);
        re_phone= (TextField) this.findComponentById(ResourceTable.Id_re_phone);
        re_sex= (TextField) this.findComponentById(ResourceTable.Id_re_sex);
        re_code= (TextField) this.findComponentById(ResourceTable.Id_re_code);
        tv_code= (Text) this.findComponentById(ResourceTable.Id_tv_code);
        btn_register= (Button) this.findComponentById(ResourceTable.Id_btn_register);
        tv_code.setClickedListener(listener);
        btn_register.setClickedListener(listener);
    }
    private Component.ClickedListener listener=new Component.ClickedListener() {
        @Override
        public void onClick(Component component) {
            switch (component.getId()){
                case ResourceTable.Id_tv_code:
                    showRandomCode();
                    break;
                case ResourceTable.Id_btn_register:
                    String user=re_user.getText();
                    String psd=re_psd.getText();
                    String phone=re_phone.getText();
                    String age=re_age.getText();
                    String sex=re_sex.getText();
                    String code=re_code.getText();
                    Map map=new HashMap();
                    map.put("phone",phone);
                    if (code==null||"".equals(code))
                        showToastDialogShort("验证码不能为空");
                    else if (!code.equals(String.valueOf(RegisterAilitySlice.this.code))) {
                        showToastDialogShort("验证码不正确");
                        showRandomCode();
                        re_code.setText("");
                    }else if(DBUtil.getInstance(rs).selectPhone("tb_user",map)){
                        showToastDialogShort("该手机号已被注册，请重新注册");
                        re_code.setText("");
                        re_age.setText("");
                        re_phone.setText("");
                        re_psd.setText("");
                        re_sex.setText("");
                        re_user.setText("");
                        showRandomCode();
                    }else {
                        ValuesBucket vb = new ValuesBucket();
                        vb.putString("name",user);
                        vb.putString("psd",psd);
                        vb.putString("phone",phone);
                        vb.putString("sex",sex);
                        vb.putInteger("age",Integer.parseInt(age));
                        long i= DBUtil.getInstance(rs).insert("tb_user",vb);
                        if (i>0) {
                            showToastDialogShort("注册成功");
                            terminate();
                        }else {
                            showToastDialogShort("注册失败");
                            re_code.setText("");
                            re_age.setText("");
                            re_phone.setText("");
                            re_psd.setText("");
                            re_sex.setText("");
                            re_user.setText("");
                            showRandomCode();
                        }
                    }
                    break;
            }
        }
    };

    private void showRandomCode() {
        code=new Random().nextInt(9000)+1000;
        tv_code.setText(code+"");
    }
}

6.3 完成数据库的数据添加操作

在DButils工具类中定义查询当前手机号是否存在，用于判断注册的时候出现相同手机号

 /**
     * 验证手机号是否已被注册
     *
     * @param tableName
     * @param map
     * @return
     */
    public boolean selectPhone(String tableName, Map<String, Object> map) {
        boolean is = false;
        //定义要查询的字段数组
        String[] columns = new String[]{"id", "name", "age", "phone", "sex", "psd"};
        //设置要查询的表，以及查询的条件
        RdbPredicates rdbPredicates = new RdbPredicates(tableName);
        for (Map.Entry<String, Object> e : map.entrySet()) {
            rdbPredicates.equalTo(e.getKey(), (String) e.getValue());
        }
        ResultSet resultSet = rs.query(rdbPredicates, columns);
        if (resultSet.goToNextRow())
            is = true;
        return is;
    }

在DBUtils工具类中定义执行插入数据的操作方法

 //添加
    public long insert(String tableName, ValuesBucket vb) {
        return rs.insert(tableName, vb);
    }

点击注册的时候进行判断验证码是否一致，或者注册信息是否全面，如果不符合要求则清空用户填写的所有数据，同时刷新验证码，重新注册，直到注册成功。注册成功后，销毁当前页面，回到上一页面，也就是登录页面，进行登录。登录成功后进入主页面。主界面效果图如下:

【鸿蒙】鸿蒙App应用-《记账软件》登录，注册，找回密码功能

主界面的功能将在后面的文章中展出，感谢大家的关注和阅读。文章来源地址https://www.toymoban.com/news/detail-471690.html

到了这里，关于【鸿蒙】鸿蒙App应用-《记账软件》登录，注册，找回密码功能的文章就介绍完了。如果您还想了解更多内容，请在右上角搜索TOY模板网以前的文章或继续浏览下面的相关文章，希望大家以后多多支持TOY模板网！

【鸿蒙】鸿蒙App应用-《记账软件》登录，注册，找回密码功能

1.登录功能

2.布局文件的搭建

3.创建LoginAbilitySlice类完成登录功能

4.定义用户实体类

5.创建Sqlite关系型数据库

5.1创建数据库工具类

5.2 创建执行sql操作类

6.注册功能

6.1新建注册页面的xml布局文件

6.2创建RegisterAbilitySlice界面

6.3 完成数据库的数据添加操作

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