基于Android的医院预下单叫号排队系统
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基于android的医院预下单叫号排队系统
效果视频
提前下单
RecyclerView双列表联动
商品选购界面采用的是两个RecyclerView联动，使用一个第三方封装包BaseQuickAdapter
导入BaseQuickAdapter
一、添加库
maven { url "https://jitpack.io" }
二、添加依赖
implementation 'com.github.CymChad:BaseRecyclerViewAdapterHelper:2.9.30'
商品信息实体类
GoodsTitle为左侧商品类型实体类
GoodsContent为右侧商品信息实体类
GoodsTitle、GoodsContent都有一个id字段，为左右联动而设置
public class Goods {
private List<GoodsTitle> titleList;
private List<GoodsContent> contentList;
public static class GoodsTitle{
private String Title;
private int id;
public GoodsTitle(String Title,int id){
this.Title = Title;
this.id = id;
}
public String getTitle() {
return Title;
}
public void setTitle(String title) {
Title = title;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
}
public static class GoodsContent{
private int GoodsIMG;
private String Content;
private String Specs;
private double Price;
private int Number;
private int AddIMG;
private int SubIMG;
private String Type;
private int subId;
public GoodsContent(int GoodsIMG,String Content,String Specs,double Price,int AddIMG,int SubIMG,int Number,int subId){
this.GoodsIMG = GoodsIMG;
this.Content = Content;
this.Specs = Specs;
this.Price = Price;
this.AddIMG = AddIMG;
this.SubIMG = SubIMG;
this.Number = Number;
this.subId = subId;
}
public int getGoodsIMG() {
return GoodsIMG;
}
public void setGoodsIMG(int goodsIMG) {
GoodsIMG = goodsIMG;
}
public String getContent() {
return Content;
}
public void setContent(String content) {
Content = content;
}
public String getSpecs() {
return Specs;
}
public void setSpecs(String specs) {
Specs = specs;
}
public double getPrice() {
return Price;
}
public void setPrice(double price) {
Price = price;
}
public int getAddIMG() {
return AddIMG;
}
public void setAddIMG(int addIMG) {
AddIMG = addIMG;
}
public int getSubIMG() {
return SubIMG;
}
public void setSubIMG(int subIMG) {
SubIMG = subIMG;
}
public String getType() {
return Type;
}
public void setType(String type) {
Type = type;
}
public int getNumber() {
return Number;
}
public void setNumber(int number) {
Number = number;
}
public int getSubId() {
return subId;
}
public void setSubId(int subId) {
this.subId = subId;
}
}
}
左侧商品类型适配器
public class titleAdapter extends BaseQuickAdapter<Goods.GoodsTitle, BaseViewHolder> {
public int Position;
public titleAdapter(int layoutResId, @Nullable List<Goods.GoodsTitle> data) {
super( layoutResId, data );
}
public titleAdapter(@Nullable List<Goods.GoodsTitle> data) {
super( data );
}
public titleAdapter(int layoutResId) {
super( layoutResId );
}
@Override
protected void convert(BaseViewHolder helper, Goods.GoodsTitle item) {
helper.setTextColor( R.id.title_name,helper.getLayoutPosition() == Position ? Color.parseColor("#ff0000") : Color.parseColor("#000000") );
helper.setText( R.id.title_name,item.getTitle() );
}
public void setSelection(int Position) {
this.Position = Position;
notifyDataSetChanged();
}
右侧商品信息适配器
public class contentAdapter extends BaseQuickAdapter<Goods.GoodsContent, BaseViewHolder> {
public contentAdapter(int layoutResId, @Nullable List<Goods.GoodsContent> data) {
super( layoutResId, data );
}
public contentAdapter(@Nullable List<Goods.GoodsContent> data) {
super( data );
}
public contentAdapter(int layoutResId) {
super( layoutResId );
}
@Override
protected void convert(BaseViewHolder helper, Goods.GoodsContent item) {
helper.setText( R.id.medicineName,item.getContent() );
helper.setText( R.id.medicineSpecs,item.getSpecs() );
helper.setText( R.id.medicinePrice,item.getPrice()+"" );
helper.setText( R.id.Number,item.getNumber()+"" );
helper.setImageResource( R.id.medicineIMG,item.getGoodsIMG() );
helper.setImageResource( R.id.Add,item.getAddIMG() );
helper.setImageResource( R.id.Sub,item.getSubIMG() );
helper.addOnClickListener( R.id.Add );
helper.addOnClickListener( R.id.Sub );
}
}
初始化左右两个RecyclerView
private void InitRecyclerView(){
titleManager = new LinearLayoutManager( getApplicationContext() );
mGoodsTitle.setLayoutManager( titleManager );
titleAdapter = new titleAdapter( R.layout.title_item,titleList );
mGoodsTitle.setAdapter( titleAdapter );
contentManager = new LinearLayoutManager( getApplicationContext() );
mGoodsContent.setLayoutManager( contentManager );
contentAdapter = new contentAdapter( R.layout.content_item,contentList );
mGoodsContent.setAdapter( contentAdapter );
}
传入数据源
private void InitTitle(){
for (int i = 0; i <resources.listTitleName.length; i++) {
goodsTitle = new Goods.GoodsTitle( resources.listTitleName[i],i );
titleList.add( goodsTitle );
}
}
private void InitContent(){
for (int i = 0; i <resources.medicineContent.length ; i++) {
/*感冒系列*/
if ( i < 10){
goodsContent = new Goods.GoodsContent( resources.medicineImg[i],resources.medicineContent[i],resources.medicineSpec[i],resources.medicinePrice[i],R.drawable.jiahao,R.drawable.jianhao,0,0 );
}else if (i >= 10 && i < 20){
/*家庭常用系列*/
goodsContent = new Goods.GoodsContent( resources.medicineImg[i],resources.medicineContent[i],resources.medicineSpec[i],resources.medicinePrice[i],R.drawable.jiahao,R.drawable.jianhao,0,1);
}else if (i >=20 && i < 30){
/*幸福生活系列*/
goodsContent = new Goods.GoodsContent( resources.medicineImg[i],resources.medicineContent[i],resources.medicineSpec[i],resources.medicinePrice[i],R.drawable.jiahao,R.drawable.jianhao,0,2);
}else if (i >= 30 && i < 35){
/*妇科系列*/
goodsContent = new Goods.GoodsContent( resources.medicineImg[i],resources.medicineContent[i],resources.medicineSpec[i],resources.medicinePrice[i],R.drawable.jiahao,R.drawable.jianhao,0,3);
}else if (i >= 35 && i < 40){
/*男科系列*/
goodsContent = new Goods.GoodsContent( resources.medicineImg[i],resources.medicineContent[i],resources.medicineSpec[i],resources.medicinePrice[i],R.drawable.jiahao,R.drawable.jianhao,0,4);
}
contentList.add( goodsContent );
}
}
列表联动
在传入数据时，为左侧每一个类型传入不同的id，右侧商品信息根据数目传入不同的id，在右侧联动左侧时，对左侧id和右侧id进行匹配，然后移动左侧标题栏，实现列表联动
左侧联动右侧
titleAdapter.setOnItemClickListener( new BaseQuickAdapter.OnItemClickListener() {
@Override
public void onItemClick(BaseQuickAdapter adapter, View view, int position) {
titleAdapter.setSelection( position );
titleAdapter.notifyDataSetChanged();
contentManager.scrollToPositionWithOffset( resources.listTitleName.length,0 );
// mGoodsTitle.smoothScrollToPosition( resources.listTitleName.length );
//contentAdapter.notifyDataSetChanged();
}
} );
右侧联动左侧
mGoodsContent.addOnScrollListener( new RecyclerView.OnScrollListener() {
@Override
public void onScrolled(@NonNull RecyclerView recyclerView, int dx, int dy) {
super.onScrolled( recyclerView, dx, dy );
int firstPosition = contentManager.findFirstVisibleItemPosition();
goodsContent = contentList.get(firstPosition);
int subId = goodsContent.getSubId();
int pos = 0;
for (int i = 0; i < titleList.size(); i++) {
int id = titleList.get(i).getId();
if ((subId == id)) {
pos = i;
}
}
titleAdapter.setSelection(pos);
//mGoodsTitle.scrollToPosition( pos );
titleAdapter.notifyDataSetChanged();
}
} );
子项添加点击
在适配器中添加如下定义，传入需要添加点击事件的子项ID
helper.addOnClickListener( R.id.Add );
helper.addOnClickListener( R.id.Sub );
源码如下
/**
* add childView id
*
* @param viewId add the child view id can support childview click
* @return if you use adapter bind listener
* @link {(adapter.setOnItemChildClickListener(listener))}
* <p>
* or if you can use recyclerView.addOnItemTouch(listerer) wo also support this menthod
*/
@SuppressWarnings("unchecked")
public BaseViewHolder addOnClickListener(@IdRes final int viewId) {
childClickViewIds.add(viewId);
final View view = getView(viewId);
if (view != null) {
if (!view.isClickable()) {
view.setClickable(true);
}
view.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (adapter.getOnItemChildClickListener() != null) {
adapter.getOnItemChildClickListener().onItemChildClick(adapter, v, getClickPosition());
}
}
});
}
return this;
}
然后再实现setOnItemChildClickListener方法即可
点击加号按钮时，商品数量增加，价格也增加，通过修改实体类字段的内容，然后通过如下语句刷新，减号按钮同理
contentAdapter.notifyDataSetChanged();
contentAdapter.setOnItemChildClickListener( new BaseQuickAdapter.OnItemChildClickListener() {
@Override
public void onItemChildClick(BaseQuickAdapter adapter, View view, int position) {
double Price = contentList.get( position ).getPrice();
switch (view.getId()){
case R.id.Add:
int numberAdd = contentList.get( position ).getNumber();
numberAdd++;
Monetary(Price);
contentList.get( position ).setNumber( numberAdd );
contentAdapter.notifyDataSetChanged();
//Toast.makeText( FunctionActivity.this,"Add"+Price,Toast.LENGTH_SHORT ).show();
break;
case R.id.Sub:
int numberSub = contentList.get( position ).getNumber();
if (numberSub > 0 ){
numberSub--;
contentList.get( position ).setNumber( numberSub );
LessMoney(Price);
}else if (numberSub < 0){
contentList.get( position ).setNumber( 0 );
}
contentAdapter.notifyDataSetChanged();
//Toast.makeText( FunctionActivity.this,"Sub"+Price,Toast.LENGTH_SHORT ).show();
break;
}
}
} );
选中的商品插入与显示
效果图
将选中的商品，存入数据库
创建数据库实体类
public class GoodsList {
private int Img;
private String Name;
private double Price;
private int Number;
private int Sub;
private int Add;
public GoodsList(int Img,String Name,double Price,int Number,int Sub,int Add){
this.Img = Img;
this.Name = Name;
this.Price = Price;
this.Number = Number;
this.Sub = Sub;
this.Add = Add;
}
public GoodsList(int Img,String Name,double Price,int Number){
this.Img = Img;
this.Name = Name;
this.Price = Price;
this.Number = Number;
}
public int getImg() {
return Img;
}
public void setImg(int img) {
Img = img;
}
public String getName() {
return Name;
}
public void setName(String name) {
Name = name;
}
public double getPrice() {
return Price;
}
public void setPrice(double price) {
Price = price;
}
public int getNumber() {
return Number;
}
public void setNumber(int number) {
Number = number;
}
public int getSub() {
return Sub;
}
public void setSub(int sub) {
Sub = sub;
}
public int getAdd() {
return Add;
}
public void setAdd(int add) {
Add = add;
}
}
建表
public class Helper extends SQLiteOpenHelper {
/**数据库名称*/
public static final String DataBase = "HospitalSystem.db";
public static final SQLiteDatabase.CursorFactory factory = null;
public static int version = 5;
/**表名1*/
public static final String TableName = "GoodsList";
/**行名*/
public static final String Row_ID = "ID";
public static final String Row_GoodsImg = "GoodsImg";
public static final String Row_GoodsName = "GoodsName";
public static final String Row_GoodsPrice = "GoodsPrice";
public static final String Row_GoodsNumber = "GoodsNumber";
public static final String Row_GoodsSub = "GoodsSub";
public static final String Row_GoodsAdd= "GoodsAdd";
public Helper(@Nullable Context context) {
super( context, DataBase, factory, version );
}
@Override
public void onCreate(SQLiteDatabase db) {
String sql = "create table " + TableName + "("+Row_ID+" INTEGER primary key AUTOINCREMENT,"+Row_GoodsImg+" INTEGER, "+Row_GoodsName+" varchar(20),"+Row_GoodsPrice+" REAL,"+Row_GoodsNumber+" INTEGER,"+Row_GoodsSub+" NUMERIC,"+Row_GoodsAdd+" NUMERIC);";
//String sql_Information = "create table " + InformationTable + "("+Row_InformationAddress+" varchar(20) primary key, "+Row_InformationParkType+" varchar(20),"+Row_InformationShareMode+" varchar(20),"+Row_InformationLastName+" varchar(20),"+Row_InformationSex+" varchar(20),"+Row_InformationPhone+" varchar(20));";
db.execSQL( sql );
//db.execSQL( sql_Information );
}
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
switch (oldVersion){
case 4:
String sql = "create table " + TableName + "("+Row_ID+" INTEGER primary key AUTOINCREMENT,"+Row_GoodsImg+" INTEGER, "+Row_GoodsName+" varchar(20),"+Row_GoodsPrice+" REAL,"+Row_GoodsNumber+" INTEGER,"+Row_GoodsSub+" NUMERIC,"+Row_GoodsAdd+" NUMERIC);";
db.execSQL( sql );
case 5:
String sql5 = "create table " + TableName + "("+Row_ID+" INTEGER primary key AUTOINCREMENT,"+Row_GoodsImg+" INTEGER, "+Row_GoodsName+" varchar(20),"+Row_GoodsPrice+" REAL,"+Row_GoodsNumber+" INTEGER,"+Row_GoodsSub+" NUMERIC,"+Row_GoodsAdd+" NUMERIC);";
db.execSQL( sql5 );
}
//db.execSQL("drop table if exists "+TableName);
//db.execSQL("drop table if exists "+InformationTable);
//onCreate(db);
}
}
建立Dao类，封装CRUD
public class Dao {
public static final String TAG = "DataBase";
private Helper helper ;
private SQLiteDatabase DB;
public Dao(Context context)
{
helper = new Helper(context);
}
public void Insert(GoodsList goodsList){
DB = helper.getReadableDatabase();
if (DB.isOpen())
{
ContentValues values = new ContentValues();
values.put( Helper.Row_GoodsImg,goodsList.getImg());
values.put( Helper.Row_GoodsName,goodsList.getName());
values.put( Helper.Row_GoodsNumber,goodsList.getNumber());
values.put( Helper.Row_GoodsPrice,goodsList.getPrice());
values.put( Helper.Row_GoodsSub,goodsList.getSub() );
values.put( Helper.Row_GoodsAdd,goodsList.getAdd() );
long RowId = DB.replace(Helper.TableName,null,values);
if(RowId == -1)
Log.i(TAG, "数据插入失败！");
else
Log.i(TAG, "数据插入成功！"+RowId);
}
}
//根据序号删除数据
//当前id为暂不为序号
public void Delete(){
DB = helper.getReadableDatabase();
if (DB.isOpen()){
String whereClause = null;
String[] whereArgs = null;
int count = DB.delete(Helper.TableName, whereClause, whereArgs);
if (count > 0)
Log.i(TAG, "删除了: " + count + "行");
else
Log.i(Helper.TableName, "数据未删除！");
DB.close(); // 数据库关闭
}
}
// public void Update(Account account){
// DB = helper.getWritableDatabase();
// if(DB.isOpen()) { // 如果数据库打开, 执行更新的操作
// ContentValues values = new ContentValues();
// //values.put( Helper.Row_Account,account.getUserID());
// values.put( Helper.Row_UserName,account.getUserName());
// //values.put( Helper.Row_PassWord,account.getPassWord());
// values.put( Helper.Row_Sex,account.getSex());
// values.put( Helper.Row_PhoneNumber,account.getPhoneNumber());
// int count = DB.update(Helper.TableName, values, "Account = ?", new String[]{account.getUserID() + ""});
// if (count > 0)
// Log.i(TAG, "修改了: " + count + "行");
// else
// Log.i(Helper.TableName, "数据未删除！");
// DB.close(); // 数据库关闭
// }
// }
// public String Query(String Account){
// DB = helper.getReadableDatabase();
// //selection查询子句的条件，可以使用主键查询
// String[] columns = {Helper.Row_Account,Helper.Row_PassWord}; // 需要的列
// String selection = "Account = ?";
// String[] selectionArgs = {Account + ""};
// Cursor cursor = DB.query(Helper.TableName,columns,selection,selectionArgs,null,null,null);
// if (cursor.moveToFirst())
// {
// //String _id = cursor.getString(0);
// String Content = cursor.getString(cursor.getColumnIndex( Helper.Row_PassWord ));
// return Content;
// }
// DB.close();
// return null;
// }
public List<GoodsList> QueryAll() {
DB = helper.getReadableDatabase(); // 获得一个只读的数据库对象
if(DB.isOpen()) {
String[] columns = {Helper.Row_GoodsImg, Helper.Row_GoodsName,Helper.Row_GoodsNumber,Helper.Row_GoodsPrice}; // 需要的列
String selection = null; // 选择条件, 给null查询所有
String[] selectionArgs = null; // 选择条件的参数, 会把选择条件中的? 替换成数据中的值
String groupBy = null; // 分组语句 group by name
String having = null; // 过滤语句
String orderBy = null; // 排序
Cursor cursor = DB.query(Helper.TableName, columns, selection, selectionArgs, groupBy, having, orderBy);
int mImg;
String mName;
double mPrice;
int mNumber;
int Add;
int Sub;
if(cursor != null && cursor.getCount() > 0) {
List<GoodsList> goodsLists = new ArrayList<GoodsList>();
while(cursor.moveToNext()) { // 向下移一位, 知道最后一位, 不可以往下移动了, 停止.
mImg = cursor.getInt(cursor.getColumnIndex( "GoodsImg" ));
mName = cursor.getString(cursor.getColumnIndex( "GoodsName" ));
mPrice = cursor.getDouble(cursor.getColumnIndex( "GoodsPrice"));
mNumber = cursor.getInt(cursor.getColumnIndex( "GoodsNumber"));
Add = R.drawable.jiahao;
Sub = R.drawable.jianhao;
goodsLists.add(new GoodsList(mImg,mName,mPrice,mNumber,Sub,Add));
}
DB.close();
return goodsLists;
}
DB.close();
}
return null;
}
}
插入选中的商品信息至数据库
通过判断选中商品数量，将大于0的商品信息插入数据库
private void GotoSettlement(){
for (int i = 0; i <contentList.size() ; i++) {
int num = contentList.get( i ).getNumber();
if (num > 0){
/*插入数据为null*/
//Toast.makeText( context,""+num,Toast.LENGTH_SHORT ).show();
goodsList = new GoodsList( contentList.get( i ).getGoodsIMG(),contentList.get( i ).getContent(),contentList.get( i ).getPrice(),contentList.get( i ).getNumber(),R.drawable.jianhao,R.drawable.jiahao );
dao.Insert( goodsList );
}
}
}
取出选中的商品信息从数据库
private void InitData(){
goodsLists = dao.QueryAll();
for (int i = 0; i <goodsLists.size() ; i++) {
goodsList = new GoodsList( goodsLists.get( i ).getImg(),goodsLists.get( i ).getName(),goodsLists.get( i ).getPrice(),goodsLists.get( i ).getNumber(),goodsLists.get( i ).getSub(),goodsLists.get( i ).getAdd() );
dataList.add( goodsList );
}
}
显示选中的商品
同样使用RecyclerView展示，实体类、适配器等省略
效果图
子项数量为0删除子项
在适配器中添加如下方法
public void subPrice(List<GoodsList> item,double price,int position,int number){
number--;
if (number > 0){
totalPrice -= price;
item.get( position ).setNumber( number );
}else {
item.remove( position );
}
notifyDataSetChanged();
}
子项清空
添加如下方法
public void removeAllItem(List<GoodsList> item){
item.removeAll( item );
notifyDataSetChanged();
}
商品总数统计
public int TotalNumber(List<GoodsList> item){
int num = 0;
for (int i = 0; i <item.size() ; i++) {
num += item.get( i ).getNumber();
}
return num;
}
商品总价统计
public double TotalPrice(List<GoodsList> item){
double totalPrice = 0;
for (int i = 0; i < item.size(); i++) {
int num = item.get( i ).getNumber();
double price = item.get( i ).getPrice();
totalPrice += num * price;
}
return totalPrice;
}
排队系统
参考另外一篇博客排队系统
优雅谢幕
killProcess
杀死所有Activity，添加如下类
public class killProcess extends Application {
private List<Activity> activityList = new ArrayList<>( );
public void addActivity(Activity activity) {
activityList.add(activity);
}
public void finishAll() {
for (Activity activity : activityList) {
if (!activity.isFinishing()) {
activity.finish();
}
}
}
}
应用
添加Activity
在每一个Activity的onCreate方法使用如下语句
killProcess = new killProcess();
killProcess.addActivity( GoodsListActivity.this );
杀死所有Activity
killProcess.finishAll();
尾言
花花世界，其心不恒，淤泥不染尚不可为之，唯独善其身，远离喧嚣。
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