[Android]Spinner(스피너)

1. 스피너의 아이템을 자바 코드로에서 설정
-/res/layout/main.xml

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:orientation="vertical"

    android:layout_width="fill_parent"

    android:layout_height="fill_parent"

    >

<Spinner 

android:id="@+id/spinner1"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

/>

</LinearLayout>

 
-SpinnerDemoA2Activity.java

package com.cho.spinnerdemoa2;

import android.app.Activity;

import android.os.Bundle;

import android.widget.ArrayAdapter;

import android.widget.Spinner;

public class SpinnerDemoA2Activity extends Activity {

    /** Called when the activity is first created. */

    @Override

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.main);

        

        String[] numbers ={"1","2","3","4","5"};

        

        Spinner spinner = (Spinner)findViewById(R.id.spinner1);

        

        //ArrayAdapter 클래스는 배열의 데이터를 지정된 

        //android.R.layout.simple_spinner_item 레이아웃으로 표현해주는 역할.

        ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,

        android.R.layout.simple_spinner_item, numbers);

        

        spinner.setAdapter(adapter);

        adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);

        spinner.setSelection(2);

    }

 
- 결과 화면
// ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, android.R.layout.simple_spinner_item, numbers);
 

//adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);