Android at 8pm on Populate Spinner From Sqlite Database

Android at 8pm on Populate Spinner From Sqlite Database - This phone has everything you’d hope for considering the price. There's the usual set of high-end specs like fast charging, wireless charging, IP68 waterproofing and speedy 4G LTE. Like the S9 Plus, the Note 9 has dual rear cameras with dual aperture and OIS. New technology for the Note 9 specifically includes Flaw Detection and Scene Optimiser, which in simpler terms tell you if you’d taken a blurry photo and selects the best scene mode for the shot. Samsung also launched the Galaxy Watch at the same time, which can be charged alongside the Note 9 on the below Wireless Charger Duo, which is a neat accessory (photo via Gizmodo). home at 8pm on, well we have collected a lot of data from the field directly and from many other blogs so very complete his discussion here about Android at 8pm on Populate Spinner From Sqlite Database, on this blog we also have to provide the latest automotive information from all the brands associated with the automobile. ok please continue reading:

Android Spinner is DropDown Choice List in Android.You can pick up one item and make your choice from list.

When you get Data from database and display in Spinner, So first you have to create database to get data from database and save it in Dynamic Array.

So first Create DataBaseHelper.java that create database and add data in database.


package com.samir.spinner;

import java.util.HashSet;
import java.util.Set;

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

public class DatabaseHelper extends SQLiteOpenHelper {
private static final int DB_VERSION = 1;
private static final String DB_NAME = "mydb";
private static final String TABLE_NAME = "mytable";
private static final String _id = "_id";
private static final String name = "name";

public DatabaseHelper(Context context) {
super(context, DB_NAME, null, DB_VERSION);
}

@Override
public void onCreate(SQLiteDatabase db) {
String createTableQuery = "create table " + TABLE_NAME + "(" + _id+ "     INTEGER PRIMARY KEY," + name + " TEXT)";
db.execSQL(createTableQuery);
}

@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion)  
        {
db.execSQL("drop table if exists " + TABLE_NAME);
onCreate(db);
}

public void insertData(String label) {
SQLiteDatabase db = this.getWritableDatabase();
ContentValues values = new ContentValues();
values.put(name, label);
db.insert(TABLE_NAME, null, values);
db.close();
}

public Set<String> getAllData() {
Set<String> set = new HashSet<String>();
String selectQuery = "select * from " + TABLE_NAME;
SQLiteDatabase db = this.getReadableDatabase();
Cursor cursor = db.rawQuery(selectQuery, null);
if (cursor.moveToFirst()) {
do {
set.add(cursor.getString(1));
} while (cursor.moveToNext());
}
cursor.close();
db.close();
return set;
}
}

Now you can see Oncreate Method is Create Database and using query you can create database.Database have two column one in _id which is primary key and second is name which we  want to save in database.

Then Using  ContentValue you can insert Data in database see method insertData(String lable) in above class.

Now, To get All data from database you just fire query and its return Cursor.Then put data in dynamic array from cursor.See method  getAllData().

Here i used Set<String> as dynamic array Because Set doesnot allow duplicates.And Spinner only show unique name.

Once you get Set then you can easily convert it in List<String>.Then you can easily append data to spinner using ArrayAdapter.


       Set<String> set = db.getAllData();
       //Convert set into list
  List<String> list = new ArrayList<String>(set);
  //Sort Data Alphabetical order
  Collections.sort(list, new Comparator<String>() {
@Override
public int compare(String lhs, String rhs) {
return lhs.compareTo(rhs);
}
  });
  adapter = new ArrayAdapter<String>(MainActivity.this,
android.R.layout.simple_spinner_item, list);
  adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
  spinner.setAdapter(adapter);


Now spinner have listener to listen selected item . 

spinner.setOnItemSelectedListener(new OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> parent, View v, int position,long id) {
     String name = parent.getItemAtPosition(position).toString();
showToast("You Selected Item :: " + name);
       }
@Override
public void onNothingSelected(AdapterView<?> arg0) {
}
    }); 



Download Full Source Code::

You Can Download Full Source Code


TECHNO NEWS
https://ikkemunandar.blogspot.com/
How to Automatically Shrink url of ADF.ly || Earn Money By ADF.ly
https://ikkemunandar.blogspot.com/2013/12/how-to-automatically-shrink-url-of.html
4 Steps Hacking Jcow Social Networking Web Server via Arbitrary Code Execution
https://ikkemunandar.blogspot.com/2016/01/4-steps-hacking-jcow-social-networking.html
ATF Box Full Crack Tool Without Box Flashing For All Nokia
https://ikkemunandar.blogspot.com/2016/01/atf-box-full-crack-tool-without-box.html