完成了记录支出页面的逻辑编写
此时项目结构

adapter适配器包

RecordPagerAdapter.java

package com.example.myapplication.adapter;

import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.fragment.app.Fragment;
import androidx.fragment.app.FragmentManager;
import androidx.fragment.app.FragmentPagerAdapter;

import java.util.List;

public class RecordPagerAdapter extends FragmentPagerAdapter {
    List<Fragment> fragmentList;
    String[]titles={"支出","收入"};
    public RecordPagerAdapter(@NonNull FragmentManager fm,List<Fragment> fragmentList) {
        super(fm);
        this.fragmentList=fragmentList;
    }

    @NonNull
    @Override
    public Fragment getItem(int position) {
        return fragmentList.get(position);
    }

    @Override
    public int getCount() {
        return fragmentList.size();
    }

    @Nullable
    @Override
    public CharSequence getPageTitle(int position) {
        return titles[position];
    }
}

db包(数据库等相关操作)

DBManager

package com.example.myapplication.db;

import android.annotation.SuppressLint;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;

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

/*
 * 负责管理数据库的类
 * 主要负责对于表当中的内容进行操作,增删改查
 * */
public class DBManager {
    private static SQLiteDatabase db;

    //    初始化数据库对象
    public static void initDB(Context context) {
        DBOpenHelper helper = new DBOpenHelper(context);//得到帮助类对象
        db = helper.getWritableDatabase();//得到数据库对象

    }
    /*
     * 读取数据库当中的数据,写入内存集合
     * kind :表示收入或者支出
     * */
    public static List<TypeBean> getTypeList(int kind){
        List<TypeBean> list=new ArrayList<>();
//        读取typetb表当中的数据
        String sql="select * from typetb where kind = "+kind;
        Cursor cursor = db.rawQuery(sql, null);
//        循环读取图标内容,存储到对象当中
        while(cursor.moveToNext()){
            String typename = cursor.getString(cursor.getColumnIndexOrThrow("typename"));
            int imageID = cursor.getInt(cursor.getColumnIndexOrThrow("imageID"));
            int sImageId = cursor.getInt(cursor.getColumnIndexOrThrow("sImageId"));
            int kind1 = cursor.getInt(cursor.getColumnIndexOrThrow("kind"));
            int id = cursor.getInt(cursor.getColumnIndexOrThrow("id"));
            TypeBean typeBean = new TypeBean(id, typename, imageID, sImageId, kind);
            list.add(typeBean);
        }
        return list;
    }
}

DBOpenHelper

package com.example.myapplication.db;

import android.content.Context;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;

import androidx.annotation.Nullable;

import com.example.myapplication.R;

public class DBOpenHelper extends SQLiteOpenHelper {
    public DBOpenHelper(@Nullable Context context) {
        super(context, "tally.db", null, 1);
    }

//    创建数据库的方法,只有项目第一次运行会被调用
    @Override
    public void onCreate(SQLiteDatabase db) {
//        创建表示类型的表
        String sql="create table typetb(id integer primary key autoincrement,typename varchar(10),imageID integer,sImageId integer,kind integer)";
        db.execSQL(sql);

        insertType(db);
    }

    private void insertType(SQLiteDatabase db) {
//        向typetb表中插入元素
        String sql="insert into typetb (typename,imageID,sImageId,kind) values (?,?,?,?)";
        db.execSQL(sql,new Object[]{"其他", R.mipmap.ic_qita,R.mipmap.ic_qita_fs,0});
        db.execSQL(sql,new Object[]{"餐饮", R.mipmap.ic_canyin,R.mipmap.ic_canyin_fs,0});
        db.execSQL(sql,new Object[]{"交通", R.mipmap.ic_jiaotong,R.mipmap.ic_jiaotong_fs,0});
        db.execSQL(sql,new Object[]{"购物", R.mipmap.ic_gouwu,R.mipmap.ic_gouwu_fs,0});
        db.execSQL(sql,new Object[]{"服饰", R.mipmap.ic_fushi,R.mipmap.ic_fushi_fs,0});
        db.execSQL(sql,new Object[]{"日用品", R.mipmap.ic_riyongpin,R.mipmap.ic_riyongpin_fs,0});
        db.execSQL(sql,new Object[]{"娱乐", R.mipmap.ic_yule,R.mipmap.ic_yule_fs,0});
        db.execSQL(sql,new Object[]{"零食", R.mipmap.ic_lingshi,R.mipmap.ic_lingshi_fs,0});
        db.execSQL(sql,new Object[]{"烟酒茶", R.mipmap.ic_yanjiu,R.mipmap.ic_yanjiu_fs,0});
        db.execSQL(sql,new Object[]{"学习", R.mipmap.ic_xuexi,R.mipmap.ic_xuexi_fs,0});
        db.execSQL(sql,new Object[]{"医疗", R.mipmap.ic_yiliao,R.mipmap.ic_yiliao_fs,0});
        db.execSQL(sql,new Object[]{"住宅", R.mipmap.ic_zhufang,R.mipmap.ic_zhufang_fs,0});
        db.execSQL(sql,new Object[]{"水电煤", R.mipmap.ic_shuidianfei,R.mipmap.ic_shuidianfei_fs,0});
        db.execSQL(sql,new Object[]{"通讯", R.mipmap.ic_tongxun,R.mipmap.ic_tongxun_fs,0});
        db.execSQL(sql,new Object[]{"人情往来", R.mipmap.ic_renqingwanglai,R.mipmap.ic_renqingwanglai_fs,0});

        db.execSQL(sql,new Object[]{"其他", R.mipmap.in_qt,R.mipmap.in_qt_fs,1});
        db.execSQL(sql,new Object[]{"薪资", R.mipmap.in_xinzi,R.mipmap.in_xinzi_fs,1});
        db.execSQL(sql,new Object[]{"奖金", R.mipmap.in_jiangjin,R.mipmap.in_jiangjin_fs,1});
        db.execSQL(sql,new Object[]{"借入", R.mipmap.in_jieru,R.mipmap.in_jieru_fs,1});
        db.execSQL(sql,new Object[]{"收债", R.mipmap.in_shouzhai,R.mipmap.in_shouzhai_fs,1});
        db.execSQL(sql,new Object[]{"利息收入", R.mipmap.in_lixifuji,R.mipmap.in_lixifuji_fs,1});
        db.execSQL(sql,new Object[]{"投资回报", R.mipmap.in_touzi,R.mipmap.in_touzi_fs,1});
        db.execSQL(sql,new Object[]{"二手交易", R.mipmap.in_ershoushebei,R.mipmap.in_ershoushebei_fs,1});
        db.execSQL(sql,new Object[]{"意外所得", R.mipmap.in_yiwai,R.mipmap.in_yiwai_fs,1});

    }

    //  数据库版本在更新时发生改变会调用此方法
    @Override
    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {

    }
}

TypeBean

package com.example.myapplication.db;
/*
*表示收入或者支出具体类型的类
**/
public class TypeBean {
    int id;
    String typename;//类型名称
    int imageId;//未被选中图片id
    int simageId;//被选中图片id
    int kind;  //收入 1 支出 0

    public TypeBean(int id, String typename, int imageId, int simageId, int kind) {
        this.id = id;
        this.typename = typename;
        this.imageId = imageId;
        this.simageId = simageId;
        this.kind = kind;
    }

    public TypeBean() {
    }

    public int getId() {
        return id;
    }

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

    public String getTypename() {
        return typename;
    }

    public void setTypename(String typename) {
        this.typename = typename;
    }

    public int getImageId() {
        return imageId;
    }

    public void setImageId(int imageId) {
        this.imageId = imageId;
    }

    public int getSimageId() {
        return simageId;
    }

    public void setSimageId(int simageId) {
        this.simageId = simageId;
    }

    public int getKind() {
        return kind;
    }

    public void setKind(int kind) {
        this.kind = kind;
    }
}

UniteApp

package com.example.myapplication;

import android.app.Application;

import com.example.myapplication.db.DBManager;
import com.example.myapplication.db.TypeBean;

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

//表示全局应用的类
public class UniteApp extends Application {
    @Override
    public void onCreate() {
        super.onCreate();
        //初始化数据库
        DBManager.initDB(getApplicationContext());
    }

}

posted on 2024-02-20 20:54  许七安gyg  阅读(3)  评论(0编辑  收藏  举报
$(document).ready(function() { // 禁止右键 $(document).bind("contextmenu", function(){return false;}); // 禁止选择 $(document).bind("selectstart", function(){return false;}); // 禁止Ctrl+C 和Ctrl+A $(document).keydown(function(event) { if ((event.ctrlKey&&event.which==67) || (event.ctrlKey&&event.which==86)) { //alert("对不起,版权所有,禁止复制"); return false; } }); });