废话不多说,首先附上图,效果如下:

                                                

  一。 我想实现这样的效果:

 

                   1.当在第一个spinner里选择一个省份的时候,第二个spinner和edittext都会同步进行改变,而且两者的值都该相同;

                   2.当在第二个spinner里进行选择的时候,edittext的值也会随之改变,而且两者的值也该相同。

  二。我的困惑:

 

        对于spinner的二级联动,我好实现,但是,对于当两个spinner的选项改变时,edittext的值该如何改变,一时

  间,我确实有些闷了,从网上找了好些资料,没找到解决的办法。但我还是坚持,最后一个网友提醒了我, 它给我提供了思路,让我找到了

  解决问题的办法,在这里,再次感谢他!

  三。解决办法和代码(这里我只把主要的代码贴出来):

    1 )布局文件的代码,也就是我们看到的上面这个图的布局代码:

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

<ScrollView android:id="@+id/weather_query"

 android:orientation="vertical" android:layout_width="fill_parent"

 android:layout_height="wrap_content" xmlns:android="​​http:///apk/res/android​​">

<LinearLayout android:orientation="vertical" 

              android:layout_width="fill_parent" 

              android:layout_height="fill_parent"

 > 

    <LinearLayout android:orientation="vertical" 

                  android:layout_width="fill_parent" 

                  android:layout_height="wrap_content" 

                  android:layout_weight="1.0">

        <LinearLayout 

                 android:layout_width="fill_parent" 

                 android:layout_height="wrap_content">

            <TextView  android:layout_width="wrap_content" 

                       android:layout_height="wrap_content" 

                       android:text="省份" />

            <Spinner  

                      android:id="@+id/spiner01"

                      android:layout_width="fill_parent" 

                      android:layout_height="wrap_content" 

                      android:layout_weight="1.0" />

        </LinearLayout>

        <LinearLayout   android:layout_width="fill_parent" 

                        android:layout_height="wrap_content">

            <TextView 

                      android:layout_width="wrap_content"

                      android:layout_height="wrap_content" 

                      android:text="城市" />

            <Spinner 

                     android:id="@+id/spiner02"

                     android:layout_width="fill_parent" 

                     android:layout_height="wrap_content" />

        </LinearLayout>

    </LinearLayout>

    <FrameLayout android:layout_width="fill_parent"

                 android:layout_height="wrap_content" 

                 android:layout_weight="1.0">

        <LinearLayout  android:layout_width="fill_parent" 

                       android:layout_height="wrap_content">

             <EditText  

                       android:id="@+id/edittext"

                       android:layout_width="wrap_content" 

                       android:layout_height="wrap_content" 

                       android:hint="中文或全拼(如:山东或shandong)" 

                       android:singleLine="true" 

                       android:layout_weight="1.0" />

                       

            <Button    

                       android:id="@+id/query_button"

                       android:layout_width="wrap_content" 

                       android:layout_height="wrap_content" 

                       android:text="@string/ok" />

        </LinearLayout>

    </FrameLayout>

 <TextView android:textColor="#ffff0000" 

              android:layout_width="wrap_content" 

              android:layout_height="wrap_content" />

    <LinearLayout android:layout_width="wrap_content" 

                 android:layout_height="10.0dip" />

    <TextView  

    android:layout_width="wrap_content" 

    android:layout_height="wrap_content" 

    android:layout_marginTop="-20.0px" 

    android:text="@string/tips_1" />

</LinearLayout>

</ScrollView>        

 

 2)activity的代码:

package com.test.pp;

import .Activity;

import android.os.Bundle;

import android.view.View;

import android.widget.AdapterView;

import android.widget.ArrayAdapter;

import android.widget.EditText;

import android.widget.Spinner;

import android.widget.AdapterView.OnItemSelectedListener;

public class WeatherCityList extends Activity {

 private Spinner prov_spr;

 private Spinner city_spr;

 ArrayAdapter<String> adapter01;

 ArrayAdapter<String> adapter02;

 private String[][] arrayOfString1 = ConstData.city;

  private EditText edittext;

 @Override

 protected void onCreate(Bundle savedInstanceState) {

  super.onCreate(savedInstanceState);

  setContentView(R.layout.weather_city_list);

  String[] arrayOfString = ConstData.province;

  adapter01 = new ArrayAdapter<String>(this,

  android.R.layout.simple_spinner_item, arrayOfString);

  adapter01.setDropDownViewResource(android.R.layout.simple_dropdown_item_1line);

  prov_spr = (Spinner) this.findViewById(.spiner01);

  prov_spr.setAdapter(adapter01);

  prov_spr.setOnItemSelectedListener(selectListener);

  city_spr = (Spinner) this.findViewById(.spiner02);

  city_spr.setAdapter(adapter02);

  edittext=(EditText) findViewById(.edittext);

  city_spr.setOnItemSelectedListener(selectListener01);//用来处理效果二的代码以及监听事件

  }

 private OnItemSelectedListener selectListener = new OnItemSelectedListener() {

  @Override

  public void onItemSelected(AdapterView<?> parent, View v, int position,

    long id) {

   int pos = prov_spr.getSelectedItemPosition();

   adapter02 = new ArrayAdapter<String>(WeatherCityList.this,

   android.R.layout.simple_spinner_item, arrayOfString1[pos]);

   city_spr.setAdapter(adapter02);

   edittext.setText(city_spr.getSelectedItem().toString());//这行代码就是用来实现edittext里的值和前面两个spinner的值同步,把我们获取的城市的值写进edittext里

  }

  

  @Override

  public void onNothingSelected(AdapterView<?> arg0) {

  }

 };

 private OnItemSelectedListener selectListener01= new OnItemSelectedListener() {

  @Override

  public void onItemSelected(AdapterView<?> parent, View v, int position,

    long id) {

   edittext.setText(city_spr.getSelectedItem().toString());//实现效果二中当我们进行选择的时候,edittext里的值也进行改变

  }

  

  @Override

  public void onNothingSelected(AdapterView<?> arg0) {

  }

 };

 

}