Spinner(二)——简单使用完整示例

MainActivity如下:

package cc.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.AdapterView.OnItemSelectedListener;
/**
 * Demo描述:
 * Spinner简单使用的完整示例
 *
 * 注意事项:
 * 这里的simple_spinner_item和simple_spinner_dropdown_item
 * 我们均使用系统自带的布局
 */
public class TestSpinnerActivity extends Activity {
	private Spinner mSpinner;
	private ArrayAdapter<String> mAdapter ;
	private String [] mStringArray;
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        init();
    }

    private void init(){
    	mSpinner=(Spinner) findViewById(R.id.spinner);
    	mStringArray=getResources().getStringArray(R.array.test_string_array);
		mAdapter = new ArrayAdapter<String>(this,android.R.layout.simple_spinner_item,mStringArray);

		//设置下拉列表风格
		mAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
		mSpinner.setAdapter(mAdapter);
		//监听Item选中事件
		mSpinner.setOnItemSelectedListener(new ItemSelectedListenerImpl());

    }

    private class ItemSelectedListenerImpl implements OnItemSelectedListener{
		@Override
		public void onItemSelected(AdapterView<?> arg0, View view, int position,long arg3) {
			System.out.println("选中了:"+mStringArray[position]);
		}

		@Override
		public void onNothingSelected(AdapterView<?> arg0) {

		}

    }
}

main.xml如下:

<?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" >

    <Spinner
        android:id="@+id/spinner"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
     />

</LinearLayout>

arrays.xml如下:

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

    <string-array name="test_string_array">
        <item>无</item>
        <item>失眠</item>
        <item>贫血</item>
        <item>脱发</item>
        <item>疲惫</item>
        <item>烦躁</item>
        <item>偏胖</item>
        <item>偏瘦</item>
        <item>白发</item>
        <item>头痛</item>
        <item>近视</item>
        <item>弱视</item>
        <item>耳鸣</item>
    </string-array>

</resources>