<TableLayout xmlns:android="http://schemas.android.com/apk/res/android"android:layout_width="match_parent"android:layout_height="match_parent">
<TableRow android:layout_width="fill_parent"android:layout_height="wrap_content" ><TextView android:text="选择低价："android:layout_width="120dp"android:layout_height="wrap_content"/><NumberPicker android:id="@+id/np1"android:layout_width="match_parent"android:layout_height="80dp"android:focusable="true"android:focusableInTouchMode="true"/></TableRow><TableRow android:layout_width="fill_parent"android:layout_height="wrap_content"><TextView android:text="选择高价："android:layout_width="120dp"android:layout_height="wrap_content"/><NumberPicker android:id="@+id/np2"android:layout_width="match_parent"android:layout_height="80dp"android:focusable="true"android:focusableInTouchMode="true"/></TableRow>
</TableLayout>

package org.crazyit.helloworld;import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.widget.NumberPicker;
import android.widget.NumberPicker.OnValueChangeListener;
import android.widget.Toast;public class NumberPickerTest extends Activity {NumberPicker np1,np2;//定义最低价格、最高价格的初始值int minPrice=25,maxPrice=75;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.number_picker_test);np1=(NumberPicker)findViewById(R.id.np1);//设置np1的最小值和最大值 np1.setMinValue(10);np1.setMaxValue(50);//设置np1的当前值
        np1.setValue(minPrice);np1.setOnValueChangedListener(new OnValueChangeListener(){
@Overridepublic void onValueChange(NumberPicker picker, int oldVal,int newVal) {// TODO Auto-generated method stubminPrice=newVal;showSelectedPrice();}});np2=(NumberPicker)findViewById(R.id.np2);//设置np2的最小值和最大值  np2.setMinValue(60);np2.setMaxValue(100);//设置np2的当前值
        np2.setValue(maxPrice);
        np2.setOnValueChangedListener(new OnValueChangeListener(){@Overridepublic void onValueChange(NumberPicker picker, int oldVal,int newVal) {// TODO Auto-generated method stubmaxPrice=newVal;showSelectedPrice();}});}private void showSelectedPrice(){Toast.makeText(this, "您选择的价格为："+minPrice+"，最高价格为："+maxPrice, Toast.LENGTH_SHORT).show();}@Overridepublic boolean onCreateOptionsMenu(Menu menu) {// Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.number_picker_test, menu);return true;}}