Showing posts with label db–android. Show all posts
Showing posts with label db–android. Show all posts
Thursday, January 5, 2017
Dynamic List of Spinner from SQLite DB–Android
This is an example to dynamically populate list of items in Android spinner. The list of items is extracted from a table of a SQLite DB (local DB).
The DB structure is as follow
db.execSQL("CREATE TABLE menujabatan " +
"(jid TEXT, jnama TEXT);");
//insert pre-configured records
db.execSQL("INSERT INTO menujabatan (jid, jnama) VALUES(it,Teknologi Maklumat);");
db.execSQL("INSERT INTO menujabatan (jid, jnama) VALUES(hr,Sumber Manusia);");
db.execSQL("INSERT INTO menujabatan (jid, jnama) VALUES(pz,Pungutan Zakat);");
db.execSQL("INSERT INTO menujabatan (jid, jnama) VALUES(pr,Promo);");
The complete source - https://docs.google.com/file/d/0B34ZxOOoeSDdNWp0Qk9UZ1pZSTQ/edit
The Java source-code
package net.kerul.menuspinner;
import java.util.ArrayList;
import com.google.ads.AdRequest;
import com.google.ads.AdView;
import android.os.Bundle;
import android.app.Activity;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.view.Menu;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemSelectedListener;
import android.widget.ArrayAdapter;
import android.widget.Spinner;
import android.widget.Toast;
public class Spinner_Items_from_DB extends Activity {
private DBcon dbhelper = new DBcon(this);
private SQLiteDatabase db;
private Spinner sjbtn, spersonel;
private ArrayList<String> arrayList1 = new ArrayList<String>();
private ArrayList<String> arrayList2;
private ArrayList<String> arrayjid = new ArrayList<String>();
private ArrayAdapter<String> adp,adp2;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_senarai);
//UI
//AdView
//admob widget
AdView adView = (AdView)findViewById(R.id.ad);
adView.loadAd(new AdRequest());
//Dynamic String ArrayList
//fetch data from menujabatan
sjbtn=(Spinner)findViewById(R.id.spinner1);
arrayList1.add("Pilih jabatan");
adp = new ArrayAdapter<String> (this,android.R.layout.simple_spinner_dropdown_item,arrayList1);
//spinner personel
arrayList2= new ArrayList<String>();
arrayList2.add("Pilih personel");
adp2 = new ArrayAdapter<String> (this,android.R.layout.simple_spinner_dropdown_item,arrayList2);
spersonel=(Spinner)findViewById(R.id.spinner2);
spersonel.setAdapter(adp2);
spersonel.setEnabled(false);
//fetch list of jabatan from table menujabatan
db = dbhelper.getReadableDatabase();
Cursor cjbtn=db.rawQuery("SELECT * FROM menujabatan;", null);
cjbtn.moveToFirst();//go to first row
do{
String row=cjbtn.getString(1);
arrayjid.add(cjbtn.getString(0));
arrayList1.add(row);
}while (cjbtn.moveToNext());
sjbtn.setAdapter(adp);
sjbtn.setOnItemSelectedListener(new OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> arg0, View arg1, int arg2,
long arg3) {
// TODO Handling selected item to generate list of personel
//Toast.makeText(getParent().getApplicationContext(), arrayjid.get(arg2), Toast.LENGTH_SHORT).show();
}
public void onNothingSelected(AdapterView<?> arg0) {
// TODO Auto-generated method stub
}
}
);//end itemListener
//continue spinner personel
spersonel.setOnItemSelectedListener(new OnItemSelectedListener() {
public void onItemSelected(AdapterView<?> arg0, View arg1,
int arg2, long arg3) {
// TODO Auto-generated method stub
}
@Override
public void onNothingSelected(AdapterView<?> arg0) {
// TODO Auto-generated method stub
}
} );
//personel
}//end onCreate
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.activity_senarai, menu);
return true;
}
}
class DBcon extends SQLiteOpenHelper {
final protected static String DATABASE_NAME="staffzpp";
public DBcon(Context context) {
super(context, DATABASE_NAME, null,1);
}
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
if (oldVersion >= newVersion) return;
db.execSQL("DROP DATABASE IF EXISTS " + DATABASE_NAME +";");
onCreate(db);
}
@Override
public void onCreate(SQLiteDatabase db) {
//here is the database definition
db.execSQL("CREATE TABLE menujabatan " +
"(jid TEXT, jnama TEXT);");
//insert pre-configured records
db.execSQL("INSERT INTO menujabatan (jid, jnama) VALUES(it,Teknologi Maklumat);");
db.execSQL("INSERT INTO menujabatan (jid, jnama) VALUES(hr,Sumber Manusia);");
db.execSQL("INSERT INTO menujabatan (jid, jnama) VALUES(pz,Pungutan Zakat);");
db.execSQL("INSERT INTO menujabatan (jid, jnama) VALUES(pr,Promo);");
db.execSQL("CREATE TABLE personel " +
"(pnama TEXT, pemail TEXT, jid TEXT);");
//insert pre-configured records
db.execSQL("INSERT INTO personel (pnama, pemail, jid) " +
"VALUES(Rusli Mukhtar,rusli@zakat.com,it);");
db.execSQL("INSERT INTO personel (pnama, pemail, jid) " +
"VALUES(Johan,johan@zakat.com,it);");
db.execSQL("INSERT INTO personel (pnama, pemail, jid) " +
"VALUES(Shazrul,shazrul@zakat.com,it);");
db.execSQL("INSERT INTO personel (pnama, pemail, jid) " +
"VALUES(Khirulnizam,khirul@zakat.com,hr);");
db.execSQL("INSERT INTO personel (pnama, pemail, jid) " +
"VALUES(Minah,minah@zakat.com,pr);");
db.execSQL("INSERT INTO personel (pnama, pemail, jid) " +
"VALUES(Lee,lee@zakat.com,pz);");
}
}
Available link for download
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