Android学习笔记-Spinner

AndroidTest_SpinnerActivity.java
package org.ben.test;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Spinner;
import android.widget.TextView;

public class AndroidTest_SpinnerActivity extends Activity {
	
	private Spinner spinner;
	private TextView textView;
	private ArrayAdapter<String> adapter;
	private String[] array={"A鍨�,"B鍨�,"AB鍨�,"O鍨�,"鍏朵粬"};
	
	
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        
        textView = (TextView)findViewById(R.id.text	);
        spinner = (Spinner)findViewById(R.id.spinner);
        
        adapter = new ArrayAdapter<String>(this,android.R.layout.simple_spinner_item,array);
        
        adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);

        spinner.setAdapter(adapter);
        
        spinner.setOnItemSelectedListener(new Spinner.OnItemSelectedListener(){

			public void onItemSelected(AdapterView<?> arg0, View arg1,
					int arg2, long arg3) {
				// TODO Auto-generated method stub
				textView.setText("浣犵殑琛�瀷鏄細"+array[arg2]);
				arg0.setVisibility(View.VISIBLE);
			}

			public void onNothingSelected(AdapterView<?> arg0) {
				// TODO Auto-generated method stub
				
			}
        });
        
    }
}

main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <TextView
        android:id="@+id/text"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="@string/hello" />
    
    <Spinner
        android:id="@+id/spinner"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerHorizontal="true"
        />

</LinearLayout>