本文介绍了如何从数据库中获取在列表视图特定项目的的onclick具体名单的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

我在我的数据库中的两个表
Placetype和地点

placetype包括像resturaunt,旅馆,汽车旅馆等

所有placetypes的

现在我要当resturaunt用户点击比如,他得到所有的returaunt列表,而不是所有的地方其他然后resturaunt。我无法做到这一点。请帮助...

这是我的code:

Database.java

 包com.example.nearbyplaces;进口的java.util.ArrayList;
进口的java.util.List;进口android.content.ContentValues​​;
进口android.content.Context;
进口android.database.Cursor;
进口android.database.sqlite.SQLiteDatabase;
进口android.database.sqlite.SQLiteOpenHelper;
进口android.util.Log;公共类数据库处理器扩展SQLiteOpenHelper {    私有静态最后弦乐DB_NAME =nearby_place;
    私有静态最终诠释db_version = 1;    //表
        私有静态最后弦乐table_placetypes =placetypes;
        私有静态最后弦乐table_places =table_places;        //列名
        私有静态最后弦乐TYPE_ID =TYPE_ID;
        私有静态最后弦乐TYPE_NAME =TYPE_NAME;
        私有静态最后弦乐place_id =place_id;
        私有静态最后弦乐PLACE_NAME =PLACE_NAME;
        私有静态最后弦乐place_address =place_address;
        私有静态最后弦乐place_contact =place_contact;
        公共数据库处理器(上下文的背景下){
            超(背景下,DB_NAME,空,db_version);
            // TODO自动生成构造函数存根
        }        //创建表查询
        字符串create_table_placetypes =CREATE TABLE IF NOT EXISTS+ table_placetypes +(
                + TYPE_ID +INTEGER PRIMARY KEY NOT NULL,+ TYPE_NAME +TEXT+);        字符串create_table_places =CREATE TABLE IF NOT EXISTS table_places(place_id INTEGER PRIMARY KEY NOT NULL,TEXT PLACE_NAME,place_address TEXT,place_contact TEXT,INTEGER TYPE_ID,外键(TYPE_ID)参考table_placetypes(TYPE_ID));        @覆盖
        公共无效的onCreate(SQLiteDatabase DB){
            // TODO自动生成方法存根            db.execSQL(create_table_placetypes);            Log.d(创造,创建placetypes);
            db.execSQL(create_table_places);
            Log.d(创造,创造的地方);
        }
        @覆盖
        公共无效onUpgrade(SQLiteDatabase分贝,INT oldVersion,诠释静态网页){
            // TODO自动生成方法存根
            db.execSQL(DROP TABLE IF EXISTS+ table_placetypes);
            db.execSQL(DROP TABLE IF EXISTS+ table_places);
            的onCreate(DB);        }
        //添加placetypes
        无效addplacetypes(placetypes PT){            SQLiteDatabase分贝= getWritableDatabase();
            ContentValues​​值=新ContentValues​​();            values​​.put(TYPE_NAME,pt.getTypename());            db.insert(table_placetypes,空,价值);
            db.close();        }         //获取单placetypes
        placetypes getPlacetypes(INT ID){
            SQLiteDatabase分贝= this.getReadableDatabase();            光标光标= db.query(table_placetypes,新的String [] {TYPE_ID,
                    TYPE_NAME},TYPE_ID +=?,
                    新的String [] {将String.valueOf(ID)},NULL,NULL,NULL,NULL);
            如果(指针!= NULL)
                cursor.moveToFirst();            placetypes PT =新placetypes(的Integer.parseInt(cursor.getString(0)),
                    cursor.getString(1));
            //返回接触
            返回PT;
        }     //获取所有placetypes
        公开名单< placetypes> getAllPlacetypes(){
            清单< placetypes> placetypesList =新的ArrayList< placetypes>();
            //选择所有查询
            字符串selectQuery =SELECT * FROM+ table_placetypes;            SQLiteDatabase分贝= this.getWritableDatabase();
            光标光标= db.rawQuery(selectQuery,NULL);            //通过所有行循环,并增加列表
            如果(cursor.moveToFirst()){
                做{
                    placetypes PT =新placetypes();
                    pt.setTypeid(的Integer.parseInt(cursor.getString(0)));
                    pt.setTypename(cursor.getString(1));
                    //字符串名称= cursor.getString(1);                    //MainActivity.ArrayofName.add(name);
                    //添加联系人名单
                    placetypesList.add(PT);
                }而(cursor.moveToNext());
            }            //返回placetype名单
            返回placetypesList;
    }        //获取placetypes计数
        公众诠释getPlacetypesCount(){
            字符串countQuery =SELECT * FROM+ table_placetypes;
            SQLiteDatabase分贝= this.getReadableDatabase();
            光标光标= db.rawQuery(countQuery,NULL);
            cursor.close();            //返回计数
            返回cursor.getCount();
        }        公共无效addplaces(地方P){
            SQLiteDatabase分贝= getWritableDatabase();
            ContentValues​​值=新ContentValues​​();
            values​​.put(PLACE_NAME,p.getPlace_name());
            values​​.put(place_address,p.getPlace_address());
            values​​.put(place_contact,p.getPlace_contact());
            values​​.put(TYPE_ID,p.getT_id());            Log.d(类型ID中,将String.valueOf(p.getT_id()));
            db.insert(table_places,空,价值);
            db.close();        }        地方getPlaces(INT PID){            SQLiteDatabase分贝= getReadableDatabase();
            光标光标= db.query(table_places,新的String [] {place_id,PLACE_NAME,place_address,place_contact,TYPE_ID},place_id +=?,新的String [] {将String.valueOf(PID)},NULL,NULL,NULL , 空值);            如果(指针!= NULL)
                 cursor.moveToFirst();            地方P =新的地方(的Integer.parseInt(cursor.getString(0)),
                    的Integer.parseInt(cursor.getString(1)),
                    cursor.getString(2),
                    cursor.getString(3),
                    cursor.getString(4)
                    );            cursor.close();            回磷;        }        公开名单<地方> getAllPlaces(字符串的typeName){            清单<地方> placeList =新的ArrayList<地方>();
            //字符串selectQuery =SELECT * FROM table_places INNER JOIN placetypes ON placetypes.type_id = table_places.type_id;
            //字符串selectQuery =SELECT * FROM table_places WHERE table_places.type_id =+ Integer.toString(typeid的);
            //字符串selectQuery =SELECT * FROM table_places WHERE table_places.place_name =+的typeName +INNER JOIN placetypes ON placetypes.type_id = table_places.type_id;
            //字符串selectQuery =SELECT * FROM table_places INNER JOIN placetypes ON placetypes.type_id = table_places.type_id WHERE table_places.place_name =+的typeName +;
            //字符串selectQuery =SELECT * FROM+ table_places;
            字符串selectQuery =SELECT * FROM table_places INNER JOIN placetypes ON placetypes.type_id = table_places.type_id WHERE placetypes.type_name ='+ +的typeName';
            SQLiteDatabase分贝= this.getWritableDatabase();
            光标光标= db.rawQuery(selectQuery,NULL);
            如果(cursor.moveToFirst())
            {
                做{
                则以P =新的地方();
                /*p.setT_id(cursor.getColumnIndex(type_id));
                p.setPlace_id(cursor.getColumnIndex(place_id));
                p.setPlace_name(cursor.getColumnIndex(PLACE_NAME));
                * /
                p.setT_id(cursor.getInt(0));
                p.setPlace_id(cursor.getInt(1));
                p.setPlace_name(cursor.getString(2));
                p.setPlace_address(cursor.getString(3));
                p.setPlace_contact(cursor.getString(4));                / *字符串t_id = cursor.getString(4);
                串p_name = cursor.getString(2);
                串p_address = cursor.getString(3);
                串p_contact = cursor.getString(1); * /                placeList.add(P);
                }而(cursor.moveToNext());
            }            cursor.close();
            返回placeList;
        }        公众诠释getPlaceCount(){            字符串selectQuery =SELECT * FROM+ table_places;
            SQLiteDatabase分贝= getReadableDatabase();
            光标光标= db.rawQuery(create_table_places,NULL);
            cursor.close();            返回cursor.getCount();
        }}

MainActivity2

 包com.example.nearbyplaces;进口的java.util.ArrayList;
进口的java.util.List;
进口android.app.Activity;
进口android.content.Intent;
进口android.os.Bundle;
进口android.util.Log;
进口android.view.View;
进口android.widget.AdapterView;
进口android.widget.ArrayAdapter;
进口android.widget.ListView;
进口android.widget.TextView;
进口android.widget.Toast;
进口android.widget.AdapterView.OnItemClickListener;公共类MainActivity2延伸活动{    私人的ListView ListView的;
    公共静态的ArrayList<串GT; ArrayofName =新的ArrayList<串GT;();
    @覆盖
    保护无效的onCreate(捆绑savedInstanceState){
        super.onCreate(savedInstanceState);
        的setContentView(R.layout.activity_main);
        意向检查= getIntent();
        字符串x = check.getStringExtra(MainActivity.PLACETYPE);
        Toast.makeText(getApplicationContext()中,x,Toast.LENGTH_SHORT).show();    数据库处理器DB =新的数据库处理器(本);
         如果(db.getAllPlaces(X).isEmpty())
         {
         / **
             * CRUD操作
             * * /
            //插入Places2
            Log.d(插入,插入..);
            db.addplaces(新的地方(必胜客,ABC,123,1));
            //db.addplaces(new的地方(必胜客,NULL,NULL));
           / * db.addplacetypes(新placetypes(MALLS));
            db.addplacetypes(新placetypes(加油站));
            db.addplacetypes(新placetypes(HOTELS));
            db.addplacetypes(新placetypes(汽车旅馆));
         * /}
            //读取所有的地方
            Log.d(读,读所有的地方..);            如果(ArrayofName.isEmpty())
            {
                清单<地方>地方= db.getAllPlaces(X);
                对于(地方号码:地方)
                {
                    字符串日志=ID:+ p.getPlace_id()+,名称:+ p.getPlace_name()+,地址:+ p.getPlace_address()+联络电话:+ p.getPlace_contact() ;
                     //写作的地方登录
                    Log.d(姓名,日志);
                    Log.d(地址,日志);
                    Log.d(联系电话,日志);                    的System.out.println(日志);
                    ArrayofName.add(p.getPlace_name());
                  // ArrayofName.add(p.getPlace_address());
                  // ArrayofName.add(p.getPlace_contact());
                }
            }            ListView控件=(ListView控件)findViewById(R.id.listView1);            ArrayAdapter<串GT;适配器=新ArrayAdapter<串GT;(这一点,
                    android.R.layout.simple_list_item_1,ArrayofName);            listView.setAdapter(适配器);            listView.setOnItemClickListener(新OnItemClickListener()
                {
                    公共无效onItemClick(适配器视图<>母公司,视图V,INT位置,长的ID)
                    {
                       Toast.makeText(getApplicationContext(),((TextView的)ⅴ).getText(),Toast.LENGTH_SHORT).show();
                      //意图I =新意图(这一点,Activity2.class);
                      // startActivity(ⅰ);
                      //意向意图=新意图(MainActivity.this,Activity2.class);
                      // startActivity(意向);
                    }
                }
            );
    }}

logcat的

  19 10-11:34:31.160:D /阅读:(12694):读取所有placetypes ..
10-11 19:34:31.164:D /名称:(12694):ID:1,名称:RESTURAUNTS
10-11 19:34:31.164:我/的System.out(12694):ID:1,名称:RESTURAUNTS
10-11 19:34:31.164:D /名称:(12694):ID:2,产品名称:MALLS
10-11 19:34:31.164:我/的System.out(12694):ID:2,产品名称:MALLS
10-11 19:34:31.164:D /名称:(12694):ID:3,名称:加油站
10-11 19:34:31.164:我/的System.out(12694):ID:3,名称:加油站
10-11 19:34:31.164:D /名称:(12694):ID:4,名称:HOTELS
10-11 19:34:31.164:我/的System.out(12694):ID:4,名称:HOTELS
10-11 19:34:31.164:D /名称:(12694):ID:5,名称:汽车旅馆
10-11 19:34:31.164:我/的System.out(12694):ID:5,名称:汽车旅馆
10-11 19:34:31.230:D / libEGL(12694):加载/vendor/lib/egl/libEGL_POWERVR_SGX540_120.so
10-11 19:34:31.234:D / libEGL(12694):加载/vendor/lib/egl/libGLESv1_CM_POWERVR_SGX540_120.so
10-11 19:34:31.246:D / libEGL(12694):加载/vendor/lib/egl/libGLESv2_POWERVR_SGX540_120.so
10-11 19:34:31.300:D / OpenGLRenderer(12694):启用调试模式0
10-11 19:34:33.320:D /插入:(12694):插入..
10-11 19:34:33.320:D /类型ID(12694):1
10-11 19:34:33.355:D /阅读:(12694):读取所有的地方..
10-11 19:34:33.363:D /名称:(12694):ID:0,名称:ABC,地址:123CONTACT NO。 :1
10-11 19:34:33.363:D /地址:(12694):ID:0,名称:ABC,地址:123CONTACT NO。 :1
10-11 19:34:33.363:D /联系电话:(12694):ID:0,名称:ABC,地址:123CONTACT NO。 :1
10-11 19:34:33.363:我/的System.out(12694):ID:0,名称:ABC,地址:123CONTACT NO。 :1
10-11 19:34:50.090:D /插入:(12766):插入..
10-11 19:34:50.090:D /类型ID(12766):1
10-11 19:34:50.113:D /阅读:(12766):读取所有的地方..
10-11 19:36:08.488:D /插入:(12877):插入..
10-11 19:36:08.488:D /类型ID(12877):1
10-11 19:36:08.511:D /阅读:(12877):读取所有的地方..


解决方案

您需要限制查询。参数添加到getAllPlaces:

 公开名单<地方> getAllPlaces(字符串的typeName){

和您的查询字符串更改为:

 字符串selectQuery =SELECT * FROM table_places INNER JOIN placetypes ON placetypes.type_id = table_places.type_id WHERE placetypes.place_name ='+ +的typeName';

现在,无论你叫getAllPlaces,用类型名称称呼它:

 如果(db.getAllPlaces(X).isEmpty())
...
清单<地方>地方= db.getAllPlaces(X);

编辑:
为输出的问题,我想你想要的是:

  //字符串日志=ID:+ p.getPlace_id()+,名称:+ p.getPlace_name()+,地址:+ p.getPlace_address( )+联络电话:+ p.getPlace_contact();
 //写作的地方登录
Log.d(测试,ID:+ p.getPlace_id());
Log.d(测试,名称:+ p.getPlace_name());
Log.d(测试,地址+ p.getPlace_address());
Log.d(测试,联络电话:+ p.getPlace_contact());

I have two tables in my database Placetype and Place

placetype consists of all the placetypes like resturaunt, hotel, motel etc

now i want when a user click on resturaunt for eg, he gets all the returaunt list and not all the places other then resturaunt. i am unable to do this. please help...

here is my code:

Database.java

     package com.example.nearbyplaces;

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



import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.util.Log;

public class DatabaseHandler extends SQLiteOpenHelper {

    private static final String db_name = "nearby_place";
    private static final int db_version = 1;

    //tables
        private static final String table_placetypes = "placetypes";
        private static final String table_places = "table_places";

        //column names
        private static final String type_id = "type_id";
        private static final String type_name = "type_name";
        private static final String place_id = "place_id";
        private static final String place_name = "place_name";
        private static final String place_address = "place_address";
        private static final String place_contact = "place_contact";


        public DatabaseHandler(Context context) {
            super(context, db_name, null, db_version);
            // TODO Auto-generated constructor stub
        }

        // create table queries
        String create_table_placetypes = "CREATE TABLE IF NOT EXISTS " + table_placetypes + "("
                + type_id + " INTEGER PRIMARY KEY NOT NULL," + type_name + " TEXT" + ")";



        String create_table_places = "CREATE TABLE IF NOT EXISTS table_places (place_id INTEGER PRIMARY KEY NOT NULL, place_name TEXT, place_address TEXT, place_contact TEXT, type_id INTEGER, FOREIGN KEY (type_id) REFERENCES table_placetypes(type_id))";



        @Override
        public void onCreate(SQLiteDatabase db) {
            // TODO Auto-generated method stub

            db.execSQL(create_table_placetypes);

            Log.d("creating", "placetypes created");
            db.execSQL(create_table_places);
            Log.d("creating", "places created");


        }


        @Override
        public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
            // TODO Auto-generated method stub
            db.execSQL("DROP TABLE IF EXISTS " + table_placetypes);
            db.execSQL("DROP TABLE IF EXISTS " + table_places);
            onCreate(db);

        }
        // add placetypes 
        void addplacetypes (placetypes pt) {

            SQLiteDatabase db = getWritableDatabase();
            ContentValues values = new ContentValues();

            values.put(type_name, pt.getTypename());

            db.insert(table_placetypes, null, values);
            db.close();

        }

         // Getting single placetypes
        placetypes getPlacetypes(int id) {
            SQLiteDatabase db = this.getReadableDatabase();

            Cursor cursor = db.query(table_placetypes, new String[] {type_id,
                    type_name }, type_id + "=?",
                    new String[] { String.valueOf(id) }, null, null, null, null);
            if (cursor != null)
                cursor.moveToFirst();

            placetypes pt = new placetypes(Integer.parseInt(cursor.getString(0)),
                    cursor.getString(1));
            // return contact
            return pt;
        }

     // Getting All placetypes
        public List<placetypes> getAllPlacetypes() {
            List<placetypes> placetypesList = new ArrayList<placetypes>();
            // Select All Query
            String selectQuery = "SELECT  * FROM " + table_placetypes;

            SQLiteDatabase db = this.getWritableDatabase();
            Cursor cursor = db.rawQuery(selectQuery, null);

            // looping through all rows and adding to list
            if (cursor.moveToFirst()) {
                do {
                    placetypes pt = new placetypes();
                    pt.setTypeid(Integer.parseInt(cursor.getString(0)));
                    pt.setTypename(cursor.getString(1));


                    //String name = cursor.getString(1);

                    //MainActivity.ArrayofName.add(name);
                    // Adding contact to list
                    placetypesList.add(pt);
                } while (cursor.moveToNext());
            }

            // return placetype list
            return placetypesList;
    }

        // Getting placetypes Count
        public int getPlacetypesCount() {
            String countQuery = "SELECT  * FROM " + table_placetypes;
            SQLiteDatabase db = this.getReadableDatabase();
            Cursor cursor = db.rawQuery(countQuery, null);
            cursor.close();

            // return count
            return cursor.getCount();
        }

        public void addplaces(places p) {
            SQLiteDatabase db = getWritableDatabase();
            ContentValues values = new ContentValues();
            values.put(place_name, p.getPlace_name());
            values.put(place_address, p.getPlace_address());
            values.put(place_contact, p.getPlace_contact());
            values.put(type_id, p.getT_id());

            Log.d("Type ID", String.valueOf(p.getT_id()));
            db.insert(table_places, null, values);
            db.close();

        }

        places getPlaces(int pid) {

            SQLiteDatabase db = getReadableDatabase();
            Cursor cursor = db.query(table_places, new String[] {place_id, place_name, place_address, place_contact,type_id}, place_id + "=?", new String[] { String.valueOf(pid) } , null, null, null, null);

            if(cursor != null)
                 cursor.moveToFirst();

            places p = new places(Integer.parseInt(cursor.getString(0)),
                    Integer.parseInt(cursor.getString(1)),
                    cursor.getString(2),
                    cursor.getString(3),
                    cursor.getString(4)
                    );

            cursor.close();

            return p;

        }

        public List<places> getAllPlaces(String typeName) {

            List<places> placeList = new ArrayList<places>();
            //String selectQuery = "SELECT * FROM table_places INNER JOIN placetypes ON placetypes.type_id=table_places.type_id "; 
            //String selectQuery = "SELECT * FROM table_places WHERE table_places.type_id="+Integer.toString(typeid);
            //String selectQuery ="SELECT * FROM table_places WHERE table_places.place_name = " +typeName+ "INNER JOIN placetypes ON placetypes.type_id = table_places.type_id";
            //String selectQuery = "SELECT * FROM table_places INNER JOIN placetypes ON placetypes.type_id = table_places.type_id WHERE table_places.place_name = " + typeName + "";
            //String selectQuery = "SELECT * FROM " +table_places;
            String selectQuery ="SELECT * FROM table_places INNER JOIN placetypes ON placetypes.type_id=table_places.type_id WHERE placetypes.type_name='"+typeName+"'";
            SQLiteDatabase db = this.getWritableDatabase();
            Cursor cursor = db.rawQuery(selectQuery, null);


            if(cursor.moveToFirst() )
            {
                do{
                places p = new places();
                /*p.setT_id(cursor.getColumnIndex(type_id));
                p.setPlace_id(cursor.getColumnIndex(place_id));
                p.setPlace_name(cursor.getColumnIndex(place_name));
                */
                p.setT_id(cursor.getInt(0));
                p.setPlace_id(cursor.getInt(1));
                p.setPlace_name(cursor.getString(2));
                p.setPlace_address(cursor.getString(3));
                p.setPlace_contact(cursor.getString(4));

                /*String t_id = cursor.getString(4);
                String p_name = cursor.getString(2);
                String p_address = cursor.getString(3);
                String p_contact = cursor.getString(1);*/

                placeList.add(p);
                }while(cursor.moveToNext());
            }

            cursor.close();
            return placeList;
        }

        public int getPlaceCount () {

            String selectQuery = "SELECT * FROM " +table_places;
            SQLiteDatabase db = getReadableDatabase();
            Cursor cursor = db.rawQuery(create_table_places, null);
            cursor.close();

            return cursor.getCount();
        }

}

MainActivity2

 package com.example.nearbyplaces;

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




import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;
import android.widget.AdapterView.OnItemClickListener;

public class MainActivity2 extends Activity {

    private ListView listView;
    public static ArrayList<String> ArrayofName = new ArrayList<String>();
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main); 
        Intent check = getIntent();
        String x = check.getStringExtra(MainActivity.PLACETYPE);
        Toast.makeText(getApplicationContext(), x, Toast.LENGTH_SHORT).show();

    DatabaseHandler db = new DatabaseHandler(this);
         if(db.getAllPlaces(x).isEmpty())
         {
         /**
             * CRUD Operations
             * */
            // Inserting Places2
            Log.d("Insert: ", "Inserting ..");
            db.addplaces(new places("Pizza Hut", "abc", "123",1));
            //db.addplaces(new places("Pizza Hut",null,null));
           /* db.addplacetypes(new placetypes("MALLS"));
            db.addplacetypes(new placetypes("GAS STATIONS"));
            db.addplacetypes(new placetypes("HOTELS"));
            db.addplacetypes(new placetypes("MOTELS")); 
         */}
            // Reading all Places
            Log.d("Reading: ", "Reading all places..");

            if(ArrayofName.isEmpty())
            {
                List<places> places = db.getAllPlaces(x);
                for (places p : places) 
                {
                    String log = "Id: "+p.getPlace_id() +" ,Name: " + p.getPlace_name() +" ,ADDRESS: " + p.getPlace_address() +"CONTACT NO. : " +p.getPlace_contact();
                     //Writing Places to log
                    Log.d("Name: ", log);
                    Log.d("ADDRESS: ", log);
                    Log.d("CONTACT NO : ", log);

                    System.out.println(log);
                    ArrayofName.add(p.getPlace_name());
                  //  ArrayofName.add(p.getPlace_address());
                  //  ArrayofName.add(p.getPlace_contact());
                }
            }   

            listView = (ListView) findViewById(R.id.listView1);

            ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
                    android.R.layout.simple_list_item_1, ArrayofName);

            listView.setAdapter(adapter);

            listView.setOnItemClickListener(new OnItemClickListener() 
                {
                    public void onItemClick(AdapterView<?> parent, View v, int position, long id) 
                    {
                       Toast.makeText(getApplicationContext(), ((TextView) v).getText(), Toast.LENGTH_SHORT).show();
                      // Intent i = new Intent(this,Activity2.class);
                      // startActivity(i);
                      // Intent intent = new Intent(MainActivity.this, Activity2.class);
                      // startActivity(intent);


                    }
                }
            );
    }

}

Logcat

    10-11 19:34:31.160: D/Reading:(12694): Reading all placetypes..
10-11 19:34:31.164: D/Name:(12694): Id: 1 ,Name: RESTURAUNTS
10-11 19:34:31.164: I/System.out(12694): Id: 1 ,Name: RESTURAUNTS
10-11 19:34:31.164: D/Name:(12694): Id: 2 ,Name: MALLS
10-11 19:34:31.164: I/System.out(12694): Id: 2 ,Name: MALLS
10-11 19:34:31.164: D/Name:(12694): Id: 3 ,Name: GAS STATIONS
10-11 19:34:31.164: I/System.out(12694): Id: 3 ,Name: GAS STATIONS
10-11 19:34:31.164: D/Name:(12694): Id: 4 ,Name: HOTELS
10-11 19:34:31.164: I/System.out(12694): Id: 4 ,Name: HOTELS
10-11 19:34:31.164: D/Name:(12694): Id: 5 ,Name: MOTELS
10-11 19:34:31.164: I/System.out(12694): Id: 5 ,Name: MOTELS
10-11 19:34:31.230: D/libEGL(12694): loaded /vendor/lib/egl/libEGL_POWERVR_SGX540_120.so
10-11 19:34:31.234: D/libEGL(12694): loaded /vendor/lib/egl/libGLESv1_CM_POWERVR_SGX540_120.so
10-11 19:34:31.246: D/libEGL(12694): loaded /vendor/lib/egl/libGLESv2_POWERVR_SGX540_120.so
10-11 19:34:31.300: D/OpenGLRenderer(12694): Enabling debug mode 0
10-11 19:34:33.320: D/Insert:(12694): Inserting ..
10-11 19:34:33.320: D/Type ID(12694): 1
10-11 19:34:33.355: D/Reading:(12694): Reading all places..
10-11 19:34:33.363: D/Name:(12694): Id: 0 ,Name: abc ,ADDRESS: 123CONTACT NO. : 1
10-11 19:34:33.363: D/ADDRESS:(12694): Id: 0 ,Name: abc ,ADDRESS: 123CONTACT NO. : 1
10-11 19:34:33.363: D/CONTACT NO :(12694): Id: 0 ,Name: abc ,ADDRESS: 123CONTACT NO. : 1
10-11 19:34:33.363: I/System.out(12694): Id: 0 ,Name: abc ,ADDRESS: 123CONTACT NO. : 1
10-11 19:34:50.090: D/Insert:(12766): Inserting ..
10-11 19:34:50.090: D/Type ID(12766): 1
10-11 19:34:50.113: D/Reading:(12766): Reading all places..
10-11 19:36:08.488: D/Insert:(12877): Inserting ..
10-11 19:36:08.488: D/Type ID(12877): 1
10-11 19:36:08.511: D/Reading:(12877): Reading all places..
解决方案

You need to limit your query. Add a parameter to getAllPlaces:

public List<places> getAllPlaces(String typeName) {

And change your query string to:

String selectQuery ="SELECT * FROM table_places INNER JOIN placetypes ON placetypes.type_id=table_places.type_id WHERE placetypes.place_name='"+typeName+"'";

Now wherever you call getAllPlaces, call it with the type name:

if(db.getAllPlaces(x).isEmpty())
...
List<places> places = db.getAllPlaces(x);

EDIT:For your output issue, I think what you want is:

//String log = "Id: "+p.getPlace_id() +" ,Name: " + p.getPlace_name() +" ,ADDRESS: " + p.getPlace_address() +"CONTACT NO. : " +p.getPlace_contact();
 //Writing Places to log
Log.d("Test", "Id: "+p.getPlace_id());
Log.d("Test", "Name: "+p.getPlace_name());
Log.d("Test", "Address: "+p.getPlace_address());
Log.d("Test", "Contact No.: "+p.getPlace_contact());

这篇关于如何从数据库中获取在列表视图特定项目的的onclick具体名单的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!

09-21 23:40