Skip to main content

AutocompleteTextview items from SQLite database

AutoCompleteTextView is yet another basic controls in Android. The main purpose is to provide a suggestion list while you type on the textbox (as in the image below). This time instead of listing a regular ArrayList, I will show how to populate the list from a offline database table  through SQLite.

Screenshot_1488288146

Starts by creating a new project, create a BASIC PROJECT. –> the tutorial is here http://blog.kerul.net/2016/12/creating-new-android-studio-project.html .

readmorebutton

The interface layout as in content_main.xml . 

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/content_main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    app:layout_behavior="@string/appbar_scrolling_view_behavior"
    tools:context="net.kerul.stationlist.MainActivity"
    tools:showIn="@layout/activity_main">

    <AutoCompleteTextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/fromstation"
        android:layout_alignParentTop="true"
        android:layout_alignParentRight="true"
        android:layout_alignParentEnd="true"
        android:layout_toEndOf="@+id/textView" />

    <TextView
        android:text="FROM"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true"
        android:id="@+id/textView" />

    <TextView
        android:text="TO"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/fromstation"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true"
        android:layout_marginTop="11dp"
        android:id="@+id/textView2" />

    <AutoCompleteTextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/fromstation"
        android:layout_alignParentRight="true"
        android:layout_alignParentEnd="true"
        android:id="@+id/tostation"
        android:layout_alignLeft="@+id/fromstation"
        android:layout_alignStart="@+id/fromstation" />
</RelativeLayout>

 

The database helper class as in MyDB.java

package net.kerul.stationlist;
import android.content.Context;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;


public class MyDB extends SQLiteOpenHelper {
    final protected static String DATABASE_NAME="KTM";//define DB name
    public MyDB(Context context) {
        super(context, DATABASE_NAME, null,1);
    }

    @Override
    public void onCreate(SQLiteDatabase db) {//1st time install auto create DB

        //here is the database definition with some data to insert

        //CREATE TABLE entry for table Stations
        db.execSQL("CREATE TABLE Stations (ID TEXT, Name TEXT, PRIMARY KEY(ID));");
        //CREATE TABLE entry for table Train_run
        db.execSQL("CREATE TABLE Train_run (ID	INTEGER, from_station_ID TEXT, to_station_ID TEXT, ticket_price REAL,PRIMARY KEY(ID));");

        //data entry (Table Stations)
        db.execSQL("INSERT INTO Stations VALUES ('KA 02','Kuala Lumpur')");
        db.execSQL("INSERT INTO Stations VALUES ('KA 03','Bank Negara')");
        db.execSQL("INSERT INTO Stations VALUES ('KA 04','Putra')");
        db.execSQL("INSERT INTO Stations VALUES ('KA 05','Segambut');");
        db.execSQL("INSERT INTO Stations VALUES ('KA 06','Kepong');");
        db.execSQL("INSERT INTO Stations VALUES ('KA 07','Kepong Sentral');");
        db.execSQL("INSERT INTO Stations VALUES ('KA 08','Sungai Buloh');");
        db.execSQL("INSERT INTO Stations VALUES ('KA 09','Kuang');");
        db.execSQL("INSERT INTO Stations VALUES ('KA 10','Rawang');");
        db.execSQL("INSERT INTO Stations VALUES ('KA 11','Serendah')");
        db.execSQL("INSERT INTO Stations VALUES ('KA 12','Batang Kali');");
        db.execSQL("INSERT INTO Stations VALUES ('KA 13','Rasa');");
        db.execSQL("INSERT INTO Stations VALUES ('KA 14','K. Kubu Bharu');");
        db.execSQL("INSERT INTO Stations VALUES ('KA 15','Tg. Malim');");
        db.execSQL("INSERT INTO Stations VALUES ('KB 01','Midvalley');");
        db.execSQL("INSERT INTO Stations VALUES ('KB 02','Seputeh');");
        db.execSQL("INSERT INTO Stations VALUES ('KB 03','Salak Selatan');");
        db.execSQL("INSERT INTO Stations VALUES ('KB 04','Bandar Tasik Selatan');");
        db.execSQL("INSERT INTO Stations VALUES ('KB 05','Serdang');");
        db.execSQL("INSERT INTO Stations VALUES ('KB 06','Kajang');");
        db.execSQL("INSERT INTO Stations VALUES ('KB 07','UKM');");
        db.execSQL("INSERT INTO Stations VALUES ('KB 08','Bangi');");
        db.execSQL("INSERT INTO Stations VALUES ('KB 09','Batang Benar');");
        db.execSQL("INSERT INTO Stations VALUES ('KB 10','Nilai');");
        db.execSQL("INSERT INTO Stations VALUES ('KB 11','Labu');");
        db.execSQL("INSERT INTO Stations VALUES ('KB 12','Tiroi');");
        db.execSQL("INSERT INTO Stations VALUES ('KB 13','Seremban');");
        db.execSQL("INSERT INTO Stations VALUES ('KB 14','Senawang');");
        db.execSQL("INSERT INTO Stations VALUES ('KB 15','Sg Gadut');");
        db.execSQL("INSERT INTO Stations VALUES ('KB 16','Rembau')");
        db.execSQL("INSERT INTO Stations VALUES ('KB 17','Tampin');");
        db.execSQL("INSERT INTO Stations VALUES ('KB 18','Btg Melaka');");
        db.execSQL("INSERT INTO Stations VALUES ('KB 19','Gemas');");
        db.execSQL("INSERT INTO Stations VALUES ('KC 01','Sentul');");
        db.execSQL("INSERT INTO Stations VALUES ('KC 02','Batu Kentonmen');");
        db.execSQL("INSERT INTO Stations VALUES ('KC 03','Kampung Batu')");
        db.execSQL("INSERT INTO Stations VALUES ('KA 01','KL Sentral');");
        db.execSQL("INSERT INTO Stations VALUES ('KC 04','Taman Wahyu');");
        db.execSQL("INSERT INTO Stations VALUES ('KC 05','Batu Caves');");
        db.execSQL("INSERT INTO Stations VALUES ('KD 01','Angkasapuri');");
        db.execSQL("INSERT INTO Stations VALUES ('KD 02','Pantai Dalam');");
        db.execSQL("INSERT INTO Stations VALUES ('KD 03','Petaling');");
        db.execSQL("INSERT INTO Stations VALUES ('KD 04','Jalan Templer');");
        db.execSQL("INSERT INTO Stations VALUES ('KD 05','Kg. Dato Harun');");
        db.execSQL("INSERT INTO Stations VALUES ('KD 06','Seri Setia');");
        db.execSQL("INSERT INTO Stations VALUES ('KD 07','Setia Jaya');");
        db.execSQL("INSERT INTO Stations VALUES ('KD 08','Subang Jaya');");
        db.execSQL("INSERT INTO Stations VALUES ('KD 09','Batu Tiga');");
        db.execSQL("INSERT INTO Stations VALUES ('KD 10','Shah Alam');");
        db.execSQL("INSERT INTO Stations VALUES ('KD 11','Padang Jawa');");
        db.execSQL("INSERT INTO Stations VALUES ('KD 12','Bukit Badak');");
        db.execSQL("INSERT INTO Stations VALUES ('KD 13','Klang');");
        db.execSQL("INSERT INTO Stations VALUES ('KD 14','Teluk Pulai');");
        db.execSQL("INSERT INTO Stations VALUES ('KD 15','Teluk Gadong');");
        db.execSQL("INSERT INTO Stations VALUES ('KD 16','Kg. Raja Uda');");
        db.execSQL("INSERT INTO Stations VALUES ('KD 17','Jalan Kastam');");
        db.execSQL("INSERT INTO Stations VALUES ('KD 18','Pelabuhan Klang');");

        //data entry (Table Train_run)
        db.execSQL("INSERT INTO Train_run VALUES (1,'KD 18','KD 18',0.0);");
        db.execSQL("INSERT INTO Train_run VALUES (2,'KD 18','KD 17',1.5);");
        db.execSQL("INSERT INTO Train_run VALUES (3,'KD 18','KD 16',1.9);");
        db.execSQL("INSERT INTO Train_run VALUES (4,'KD 18','KD 15',1.9);");
        db.execSQL("INSERT INTO Train_run VALUES (5,'KD 18','KD 14',1.9);");
        db.execSQL("INSERT INTO Train_run VALUES (6,'KD 18','KD 13',2.3);");
        db.execSQL("INSERT INTO Train_run VALUES (7,'KD 18','KD 12',2.3);");
        db.execSQL("INSERT INTO Train_run VALUES (8,'KD 18','KD 11',2.8);");
        db.execSQL("INSERT INTO Train_run VALUES (9,'KD 18','KD 10',3.3);");
        db.execSQL("INSERT INTO Train_run VALUES (10,'KD 18','KD 9',3.9);");
        db.execSQL("INSERT INTO Train_run VALUES (11,'KD 18','KD 8',4.3);");
        db.execSQL("INSERT INTO Train_run VALUES (12,'KD 18','KD 7',4.7);");
        db.execSQL("INSERT INTO Train_run VALUES (13,'KD 18','KD 6',4.8);");
        db.execSQL("INSERT INTO Train_run VALUES (14,'KD 18','KD 5',4.9);");
        db.execSQL("INSERT INTO Train_run VALUES (15,'KD 18','KD 4',5.3);");
        db.execSQL("INSERT INTO Train_run VALUES (16,'KD 18','KD 3',5.4);");
        db.execSQL("INSERT INTO Train_run VALUES (17,'KD 18','KD 2',5.6);");
        db.execSQL("INSERT INTO Train_run VALUES (18,'KD 18','KD 1',5.9);");
        db.execSQL("INSERT INTO Train_run VALUES (19,'KD 18','KA 01',6.4);");
        db.execSQL("INSERT INTO Train_run VALUES (20,'KD 18','KA 02',6.5);");
        db.execSQL("INSERT INTO Train_run VALUES (21,'KD 18','KA 03',6.7);");
        db.execSQL("INSERT INTO Train_run VALUES (22,'KD 18','KA 04',6.9);");
        db.execSQL("INSERT INTO Train_run VALUES (23,'KD 18','KC 01',7.1);");
        db.execSQL("INSERT INTO Train_run VALUES (24,'KD 18','KC 02',7.1);");
        db.execSQL("INSERT INTO Train_run VALUES (25,'KD 18','KC 03',7.2);");
        db.execSQL("INSERT INTO Train_run VALUES (26,'KD 18','KC 04',7.4);");
        db.execSQL("INSERT INTO Train_run VALUES (27,'KD 18','KC 05',7.7);");
        db.execSQL("INSERT INTO Train_run VALUES (28,'KD 18','KA 15',15.1);");
        db.execSQL("INSERT INTO Train_run VALUES (29,'KD 18','KA 14',12.7);");
        db.execSQL("INSERT INTO Train_run VALUES (30,'KD 18','KA 13',11.9);");
        db.execSQL("INSERT INTO Train_run VALUES (31,'KD 18','KA 12',11.5);");
        db.execSQL("INSERT INTO Train_run VALUES (32,'KD 17','KD 18',1.1);");

    }//onCreate


    @Override
    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
        if (newVersion > oldVersion){//renew DB if DB upgraded to new version
            //do something if database is updated
            db.execSQL("DROP TABLE IF EXISTS Stations");
            db.execSQL("DROP TABLE IF EXISTS Train_run");
            onCreate(db);
        }
    }//onUpgrade
}//end MyDB database helper

And the MainActivity.java is below. Bear in mind that the description of what the coding do are available in the comment.

package net.kerul.stationlist;

import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.os.Bundle;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.View;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.ArrayAdapter;
import android.widget.AutoCompleteTextView;

import java.util.ArrayList;

public class MainActivity extends AppCompatActivity {
    private AutoCompleteTextView fromstation, tostation;
    private MyDB mydb;
    private SQLiteDatabase db;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);

        FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
        fab.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
                        .setAction("Action", null).show();
            }
        });

        //UI the AutoCompleteTextView
        fromstation = (AutoCompleteTextView)findViewById(R.id.fromstation);
        tostation = (AutoCompleteTextView)findViewById(R.id.tostation);

        //create the ArrayList from database
        mydb = new MyDB(this);
        db = mydb.getWritableDatabase();//connect to MyDB
        //
        final String [] mydata;
        ArrayList<String> array = new ArrayList<>();
        //Inside the method you've read the cursor, loop through it and add those item to array
        String sql="SELECT * FROM Stations";
        //execute SQL
        Cursor cr = db.rawQuery(sql, null);
        cr.moveToFirst();//cursor pointing to first row
        mydata = new String[cr.getCount()];//create array string based on numbers of row
        int i=0;
        do  {
            mydata[i] = cr.getString(1);//insert new stations to the array list
            //Log.i("ArrayList",mydata[i]);
            i++;
        }while(cr.moveToNext());
        //Finally Set the adapter to AutoCompleteTextView like this,
        ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
                        android.R.layout.simple_dropdown_item_1line, mydata);
        //populate the list to the AutoCompleteTextView controls
        fromstation.setAdapter(adapter);
        tostation.setAdapter(adapter);

    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            return true;
        }

        return super.onOptionsItemSelected(item);
    }
}
Labels:

Comments

Post a Comment

Popular posts from this blog

Several English proverbs and the Malay pair

Or you could download here for the Malay proverbs app – https://play.google.com/store/apps/details?id=net.kerul.peribahasa English proverbs and the Malay pair Corpus Reference: Amir Muslim, 2009. Peribahasa dan ungkapan Inggeris-Melayu. DBP, Kuala Lumpur http://books.google.com.my/books/about/Peribahasa_dan_ungkapan_Inggeris_Melayu.html?id=bgwwQwAACAAJ CTRL+F to search Proverbs in English Definition in English Similar Malay Proverbs Definition in Malay 1 Where there is a country, there are people. A country must have people. Ada air adalah ikan. Ada negeri adalah rakyatnya. 2 Dry bread at home is better than roast meat home's the best hujan emas di negeri orang,hujan batu di negeri sendiri Betapa baik pun tempat orang, baik lagi tempat sendiri. 3 There's no accounting for tastes We can't assume that every people have a same feel Kepala sama hitam hati lain-lain. Dalam kehidupan ini, setiap insan berbeza cara, kesukaan, perangai, tabia
Post a Comment
Click here to read the complete article ...

Submit your blog address here

Create your own blog and send the address by submitting the comment of this article. Make sure to provide your full name, matrix and URL address of your blog. Refer to the picture below. Manual on developing a blog using blogger.com and AdSense, download here … Download Windows Live Writer (a superb offline blog post editor)
45 comments
Click here to read the complete article ...

Contact Us at blog.kerul.net

Powered by EMF HTML Contact Form
Post a Comment
Click here to read the complete article ...

ASK kerul pls...

Ask me please, just click the button... Any question related to the web, PHP, database, internet, this blog, my papers, or anything. I'll answer to you as soon as I can, if related to my domain. If not I'll try to find out from Google and provide you a link that can help you solve a problem. Sincerely, kerul. ASK kerul pls... http://kerul.blogspot.com
28 comments
Click here to read the complete article ...

The Challenges of Handling Proverbs in Malay-English Machine Translation – a research paper

*This paper was presented in the 14th International Conference on Translation 2013 ( http://ppa14atf.usm.my/ ). 27 – 29 August 2013, Universiti Sains Malaysia, Penang. The PDF version is here: www.scribd.com/doc/163669571/Khirulnizam-The-Challenges-of-Automated-Detection-and-Translation-of-Malay-Proverb The test data is here: http://www.scribd.com/doc/163669588/Test-Data-for-the-Research-Paper-the-Challenges-of-Handling-Proverbs-in-Malay-English-Machine-Translation Khirulnizam Abd Rahman, Faculty of Information Science & Technology, KUIS Abstract: Proverb is a unique feature of Malay language in which a message or advice is not communicated indirectly through metaphoric phrases. However, the use of proverb will cause confusion or misinterpretation if one does not familiar with the phrases since they cannot be translated literally. This paper will discuss the process of automated filtering of Malay proverb in Malay text. The next process is translation. In machine translatio
Post a Comment
Click here to read the complete article ...