Tuesday, 29 September 2015

Spinner in Android

Spinners provide a quick way to select one value from a set. In the default state, a spinner shows its currently selected value. Touching the spinner displays a dropdown menu with all other available values, from which the user can select a new one.
activity_main.xml
-----------------------
<LinearLayout
   
xmlns:android="http://schemas.android.com/apk/res/android"
   
xmlns:tools="http://schemas.android.com/tools"
   
android:layout_width="match_parent"
   
android:layout_height="match_parent"
   
tools:context=".MainActivity"
   
android:orientation="vertical">

    <
Spinner
       
android:layout_width="fill_parent"
       
android:layout_height="wrap_content"
       
android:id="@+id/spinner" />
</
LinearLayout>
text.xml
---------------------
<?xml version="1.0" encoding="utf-8"?>
<TextView
   
xmlns:android="http://schemas.android.com/apk/res/android"
   
android:layout_width="match_parent"
   
android:textSize="25dp"
   
android:layout_height="match_parent"
>

</
TextView
MainActivity.Java
------------------------
package com.android.anil.spinner;



import android.support.v7.app.AppCompatActivity;

import android.os.Bundle;

import android.view.View;

import android.widget.AdapterView;

import android.widget.ArrayAdapter;

import android.widget.Spinner;

import android.widget.Toast;


public class MainActivity extends AppCompatActivity {

    Spinner sp;

    String[] citys={"Hyderabad","Secundrabad","Chennai","Bengaluru","Mumbai","Kolkata","Delhi","Pune","Anantapur","Tadipatri"};



    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        sp=(Spinner)findViewById(R.id.spinner);

        ArrayAdapter<String> arrayAdapter=new ArrayAdapter<String>(MainActivity.this,R.layout.text,citys);

        sp.setAdapter(arrayAdapter);

        sp.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {

            @Override

            public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {

                Toast.makeText(MainActivity.this, "Selected City is : "+citys[position], Toast.LENGTH_SHORT).show();

            }


            @Override

            public void onNothingSelected(AdapterView<?> parent) {


            }

        });

    }

}
Output is:
------------------------




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