Spinner
- Start the Eclipse IDE.
- Create a new project.
- Create a MainActivity.java file.
- Create an activity_main.xml for layout design.
- Declare a spinner in the XML layout, for example:
- <Spinner
- android:layout_width="wrap_content"
- android:layout_height="wrap_content"
- android:id="@+id/ss"/>
- Declare a string array with some elements and pass these elements to the ArrayAdapter.
For instance
- String[] str={"select","yellow","red","Green","purple","blue"};
- ArrayAdapter<String> adap=new ArrayAdapter<String>
- (this, android.R.layout.simple_spinner_item,str);
The code is given below.
MainActivity.java
- package com.example.spinnertodayy;
- import android.app.Activity;
- import android.graphics.Color;
- import android.os.Bundle;
- import android.view.View;
- import android.widget.AdapterView;
- import android.widget.AdapterView.OnItemSelectedListener;
- import android.widget.ArrayAdapter;
- import android.widget.RelativeLayout;
- import android.widget.Spinner;
- import android.widget.TextView;
- import android.widget.Toast;
- public class MainActivity extends Activity {
- Spinner s1;
- RelativeLayout ll;
- String[] str={"select","yellow","red","Green","purple","blue"};
- @Override
- protected void onCreate(Bundle savedInstanceState) {
- super.onCreate(savedInstanceState);
- setContentView(R.layout.activity_main);
- s1=(Spinner) findViewById(R.id.ss);
- ll=(RelativeLayout) findViewById(R.id.rr);
- ArrayAdapter<String> adap=new ArrayAdapter<String>
- (this, android.R.layout.simple_spinner_item,str);
- s1.setAdapter(adap);
- s1.setOnItemSelectedListener(new OnItemSelectedListener() {
- public void onItemSelected(AdapterView<?> arg0, View arg1, int arg2,
- long arg3) {
- // TODO Auto-generated method stub
- String ss1=arg0.getItemAtPosition(arg2).toString();
- String ss=((TextView)arg1).getText().toString();
- Toast.makeText(getApplicationContext(), ss, 10000).show();
- }
- public void onNothingSelected(AdapterView<?> arg0) {
- // TODO Auto-generated method stub
- }
- });
- }
- }
activity_main.xml
- <RelativeLayout 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"
- android:id="@+id/rr"
- android:paddingBottom="@dimen/activity_vertical_margin"
- android:paddingLeft="@dimen/activity_horizontal_margin"
- android:paddingRight="@dimen/activity_horizontal_margin"
- android:paddingTop="@dimen/activity_vertical_margin"
- tools:context=".MainActivity" >
- <Spinner
- android:layout_width="wrap_content"
- android:layout_height="wrap_content"
- android:id="@+id/ss"/>
- </RelativeLayout>
Output



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