使用两款Android纱厂一个因另一 [英] using Two android spinners one dependent on the other

查看：91 发布时间：2015/12/1 20:29:43 java android android-activity android-spinner

本文介绍了使用两款Android纱厂一个因另一的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我已经经历了这么多的code去，并试图找出什么我做错了，但我不及格，并在浪费时间。这将是pretty的简单，但我不出来..

我开发一个Android应用程序，并需要投入2纺纱厂的一个活动。第二离心器将填充基于关于第一离心器中选择的条目。听起来很简单吧？

因此，这里是我想做的事。如果用户选择了手机，从内容的 choosePersonalPlan 应显示，当用户选择大型企业 chooseLargeBusplan 应该运行和最终项应调用 chooseSmallMedPlan 。我得到的是从 ChooseSmallMedPlan 的项目显示所有的时间。

我的继承人code。请让我知道问心无愧我做错了！

的Java文件

 包com.example.mobilebillforecaster;

进口的java.util.ArrayList;
进口的java.util.List;

进口android.app.Activity;
进口android.os.Bundle;
进口android.view.View;
进口android.widget.AdapterView;
进口android.widget.ArrayAdapter;
进口android.widget.Spinner;
进口android.widget.AdapterView.OnItemSelectedListener;


 公共类Du_postpaid延伸活动{

    公共微调catspinner，planspinner3，planspinner1，planspinner2;


    保护无效的onCreate（包mbfSplash）{
            super.onCreate（mbfSplash）;
            的setContentView（R.layout.postpaid）;

    chooseCategory（）;
    choosePersonalPlan（）;
    chooseLargeBusPlan（）;
    chooseSmallMedPlan（）;
    }

    公共无效chooseCategory（）{

        catspinner =（微调）findViewById（R.id.catspinner）;
        ArrayAdapter＆LT; CharSequence的＆GT; catAdapter = ArrayAdapter.createFromResource（这一点，R.array.ducategory，android.R.layout.simple_spinner_item）;
        catAdapter.setDropDownViewResource（android.R.layout.simple_spinner_dropdown_item）;
        catspinner.setAdapter（catAdapter）;

    }
    私人无效choosePersonalPlan（）{
        planspinner1 =（微调）findViewById（R.id.planspinner）;
        名单＆LT;字符串＆GT; planlist =新的ArrayList＆LT;字符串＆GT;（）;
        planlist.add（精英普通计划）;
        planlist.add（精英超级计划）;
        planlist.add（阿联酋计划）;
        planlist.add（支付，因为你去）;
        planlist.add（访问移动在线）;
        ArrayAdapter＆LT;字符串＆GT; planAdapter1 =新的ArrayAdapter＆LT;字符串＆GT;（这一点，
            android.R.layout.simple_spinner_item，planlist）;
        planAdapter1.setDropDownViewResource（android.R.layout.simple_spinner_dropdown_item）;
        planspinner1.setAdapter（planAdapter1）;

    }

    私人无效chooseLargeBusPlan（）{

        planspinner2 =（微调）findViewById（R.id.planspinner）;
        名单＆LT;字符串＆GT; planlist1 =新的ArrayList＆LT;字符串＆GT;（）;
        planlist1.add（premier计划）;
        planlist1.add（以下简称执行计划）;
        planlist1.add（商圈规划）;
        planlist1.add（商务钻石计划）;
        ArrayAdapter＆LT;字符串＆GT; planAdapter2 =新的ArrayAdapter＆LT;字符串＆GT;（这一点，
            android.R.layout.simple_spinner_item，planlist1）;
        planAdapter2.setDropDownViewResource（android.R.layout.simple_spinner_dropdown_item）;
        planspinner2.setAdapter（planAdapter2）;


    }
    私人无效chooseSmallMedPlan（）{

        planspinner2 =（微调）findViewById（R.id.planspinner）;
        名单＆LT;字符串＆GT; planlist2 =新的ArrayList＆LT;字符串＆GT;（）;
        planlist2.add（商超计划）;
        planlist2.add（她的生意超级计划）;
        planlist2.add（商圈规划）;
        planlist2.add（现收现付Go®加）;
        ArrayAdapter＆LT;字符串＆GT; planAdapter3 =新的ArrayAdapter＆LT;字符串＆GT;（这一点，
            android.R.layout.simple_spinner_item，planlist2）;
    planAdapter3.setDropDownViewResource（android.R.layout.simple_spinner_dropdown_item）;
    planspinner2.setAdapter（planAdapter3）;

    }


    公共类planOnClickListener实现OnItemSelectedListener {

            @覆盖
            公共无效onItemSelected（适配器视图＆LT;＆GT;母公司，视图V，INT POS机，
                    长ID）{

                parent.getItemAtPosition（POS）;

                如果（POS == 0）{
                choosePersonalPlan（）;
                }否则如果（位置== 1）{
                chooseLargeBusPlan（）;
                }否则，如果（POS == 2）{
                chooseSmallMedPlan（）;
}
            }
            @覆盖
            公共无效onNothingSelected（适配器视图＆LT;＆GT;为arg0）{
                // TODO自动生成方法存根

            }
            }


 }

XML

 ＆LT; XML版本=1.0编码=UTF-8＆GT？;
＆LT; RelativeLayout的的xmlns：机器人=http://schemas.android.com/apk/res/android
    机器人：layout_width =match_parent
    机器人：layout_height =match_parent
    机器人：重力=左＆GT;

    ＆LT;的TextView
        机器人：ID =@ + ID / postp
        机器人：layout_width =130dp
        机器人：layout_height =50dp
        机器人：layout_alignParentTop =真
        机器人：layout_centerHorizontal =真
        机器人：layout_marginTop =15dp
        机器人：重力=中心
        机器人：文本=@字符串/ postp
        机器人：TEXTSIZE =30dp

        /＆GT;


    ＆LT;微调
        机器人：ID =@ + ID / catspinner
        机器人：layout_width =WRAP_CONTENT
        机器人：layout_height =WRAP_CONTENT
        机器人：layout_alignParentLeft =真
        机器人：layout_below =@ + ID / postp
        机器人：layout_marginTop =25dp
        机器人：项=@阵列/ ducategory
        机器人：提示=@字符串/ category_prompt
        /＆GT;

     ＆LT;微调
        机器人：ID =@ + ID / planspinner
        机器人：layout_width =WRAP_CONTENT
        机器人：layout_height =WRAP_CONTENT
        机器人：layout_alignParentLeft =真
        机器人：layout_below =@ + ID / catspinner/＆GT;


＆LT; / RelativeLayout的＆GT;

解决方案

添加

  catspinner.setOnItemSelectedListener（新planOnClickListener（））;

到

  chooseCategory（）;

下面是整个code -

 公共类TemoActivity延伸活动{

公共微调catspinner，planspinner3，planspinner1，planspinner2;


保护无效的onCreate（包mbfSplash）{
        super.onCreate（mbfSplash）;
        的setContentView（R.layout.main）;

chooseCategory（）;
choosePersonalPlan（）;
chooseLargeBusPlan（）;
chooseSmallMedPlan（）;
}

公共无效chooseCategory（）{

    catspinner =（微调）findViewById（R.id.catspinner）;
    ArrayAdapter＆LT; CharSequence的＆GT; catAdapter = ArrayAdapter.createFromResource（这一点，R.array.ducategory，android.R.layout.simple_spinner_item）;
    catAdapter.setDropDownViewResource（android.R.layout.simple_spinner_dropdown_item）;
    catspinner.setAdapter（catAdapter）;
    catspinner.setOnItemSelectedListener（新planOnClickListener（））;
}
私人无效choosePersonalPlan（）{
    planspinner1 =（微调）findViewById（R.id.planspinner）;
    名单＆LT;字符串＆GT; planlist =新的ArrayList＆LT;字符串＆GT;（）;
    planlist.add（精英普通计划）;
    planlist.add（精英超级计划）;
    planlist.add（阿联酋计划）;
    planlist.add（支付，因为你去）;
    planlist.add（访问移动在线）;
    ArrayAdapter＆LT;字符串＆GT; planAdapter1 =新的ArrayAdapter＆LT;字符串＆GT;（这一点，
        android.R.layout.simple_spinner_item，planlist）;
    planAdapter1.setDropDownViewResource（android.R.layout.simple_spinner_dropdown_item）;
    planspinner1.setAdapter（planAdapter1）;

}

私人无效chooseLargeBusPlan（）{

    planspinner2 =（微调）findViewById（R.id.planspinner）;
    名单＆LT;字符串＆GT; planlist1 =新的ArrayList＆LT;字符串＆GT;（）;
    planlist1.add（premier计划）;
    planlist1.add（以下简称执行计划）;
    planlist1.add（商圈规划）;
    planlist1.add（商务钻石计划）;
    ArrayAdapter＆LT;字符串＆GT; planAdapter2 =新的ArrayAdapter＆LT;字符串＆GT;（这一点，
        android.R.layout.simple_spinner_item，planlist1）;
    planAdapter2.setDropDownViewResource（android.R.layout.simple_spinner_dropdown_item）;
    planspinner2.setAdapter（planAdapter2）;


}
私人无效chooseSmallMedPlan（）{

    planspinner2 =（微调）findViewById（R.id.planspinner）;
    名单＆LT;字符串＆GT; planlist2 =新的ArrayList＆LT;字符串＆GT;（）;
    planlist2.add（商超计划）;
    planlist2.add（她的生意超级计划）;
    planlist2.add（商圈规划）;
    planlist2.add（现收现付Go®加）;
    ArrayAdapter＆LT;字符串＆GT; planAdapter3 =新的ArrayAdapter＆LT;字符串＆GT;（这一点，
        android.R.layout.simple_spinner_item，planlist2）;
planAdapter3.setDropDownViewResource（android.R.layout.simple_spinner_dropdown_item）;
planspinner2.setAdapter（planAdapter3）;

}


公共类planOnClickListener实现OnItemSelectedListener {

         @覆盖
        公共无效onItemSelected（适配器视图＆LT;＆GT;母公司，视图V，INT POS机，
                长ID）{

            parent.getItemAtPosition（POS）;

            如果（POS == 0）{
            choosePersonalPlan（）;
            }否则如果（位置== 1）{
            chooseLargeBusPlan（）;
            }否则，如果（POS == 2）{
            chooseSmallMedPlan（）;
 }
        }
        @覆盖
        公共无效onNothingSelected（适配器视图＆LT;＆GT;为arg0）{
            // TODO自动生成方法存根

        }
        }
}

I have gone through so much code and tried to figure out what I am doing wrong but i am flunked and am wasting time. It would be pretty simple but I cannot figure it out..

I am developing an android app and need to put 2 spinners on one activity. the second spinner will populate based on the entry selected on the first spinner. Sounds simple right?

So here is what I wanna do. If user selects Mobile, contents from the choosePersonalPlan should be displayed, when users selects Large business chooseLargeBusplan should run and the final entry should invoke chooseSmallMedPlan. All I get is the items from ChooseSmallMedPlan displaying all the time.

heres my code. please let me know wth I am doing wrong!

Java file

package com.example.mobilebillforecaster;

import java.util.ArrayList;
import java.util.List;

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;


 public class Du_postpaid extends Activity {

    public Spinner catspinner,planspinner3,planspinner1,planspinner2;


    protected void onCreate(Bundle mbfSplash) {
            super.onCreate(mbfSplash);
            setContentView(R.layout.postpaid);

    chooseCategory();
    choosePersonalPlan();
    chooseLargeBusPlan();
    chooseSmallMedPlan();
    }

    public void chooseCategory() {

        catspinner = (Spinner) findViewById(R.id.catspinner);
        ArrayAdapter<CharSequence> catAdapter = ArrayAdapter.createFromResource(this, R.array.ducategory, android.R.layout.simple_spinner_item);
        catAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
        catspinner.setAdapter(catAdapter);

    }
    private void choosePersonalPlan(){
        planspinner1 = (Spinner) findViewById(R.id.planspinner);
        List<String> planlist = new ArrayList<String>();
        planlist.add("Elite Regular Plan");
        planlist.add("Elite Super Plans");
        planlist.add("Emirati Plan");
        planlist.add("Pay As You Go");
        planlist.add("Visitor Mobile Line");
        ArrayAdapter<String> planAdapter1 = new ArrayAdapter<String>(this,
            android.R.layout.simple_spinner_item, planlist);
        planAdapter1.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
        planspinner1.setAdapter(planAdapter1);

    }

    private void chooseLargeBusPlan(){

        planspinner2 = (Spinner) findViewById(R.id.planspinner);
        List<String> planlist1 = new ArrayList<String>();
        planlist1.add("Premier Plan");
        planlist1.add("The Executive Plan");
        planlist1.add("Business Circle Plan");
        planlist1.add("Business Diamond Plan");
        ArrayAdapter<String> planAdapter2 = new ArrayAdapter<String>(this,
            android.R.layout.simple_spinner_item, planlist1);
        planAdapter2.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
        planspinner2.setAdapter(planAdapter2);


    }
    private void chooseSmallMedPlan(){

        planspinner2 = (Spinner) findViewById(R.id.planspinner);
        List<String> planlist2 = new ArrayList<String>();
        planlist2.add("Business Super Plan");
        planlist2.add("Her Business Super Plan");
        planlist2.add("Business Circle Plan");
        planlist2.add("Pay As you Go® Plus");
        ArrayAdapter<String> planAdapter3 = new ArrayAdapter<String>(this,
            android.R.layout.simple_spinner_item, planlist2);
    planAdapter3.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
    planspinner2.setAdapter(planAdapter3);

    }


    public class planOnClickListener implements OnItemSelectedListener {

            @Override
            public void onItemSelected(AdapterView<?> parent, View v, int pos,
                    long id) {

                parent.getItemAtPosition(pos);  

                if (pos==0){
                choosePersonalPlan();   
                }else if (pos==1){
                chooseLargeBusPlan();
                } else if (pos==2){
                chooseSmallMedPlan();
}
            }
            @Override
            public void onNothingSelected(AdapterView<?> arg0) {
                // TODO Auto-generated method stub

            }
            }


 }

XML

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:gravity="left" >

    <TextView
        android:id="@+id/postp"
        android:layout_width="130dp"
        android:layout_height="50dp"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="15dp"
        android:gravity="center"
        android:text="@string/postp"
        android:textSize="30dp"

        />


    <Spinner
        android:id="@+id/catspinner"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_below="@+id/postp"
        android:layout_marginTop="25dp"
        android:entries="@array/ducategory"
        android:prompt="@string/category_prompt"
        />

     <Spinner
        android:id="@+id/planspinner"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_below="@+id/catspinner" />


</RelativeLayout>

解决方案

Add

catspinner.setOnItemSelectedListener(new planOnClickListener());

chooseCategory();

Here's the whole code-

public class TemoActivity extends Activity {

public Spinner catspinner,planspinner3,planspinner1,planspinner2;


protected void onCreate(Bundle mbfSplash) {
        super.onCreate(mbfSplash);
        setContentView(R.layout.main);

chooseCategory();
choosePersonalPlan();
chooseLargeBusPlan();
chooseSmallMedPlan();
}

public void chooseCategory() {

    catspinner = (Spinner) findViewById(R.id.catspinner);
    ArrayAdapter<CharSequence> catAdapter = ArrayAdapter.createFromResource(this, R.array.ducategory, android.R.layout.simple_spinner_item);
    catAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
    catspinner.setAdapter(catAdapter);
    catspinner.setOnItemSelectedListener(new planOnClickListener());
}
private void choosePersonalPlan(){
    planspinner1 = (Spinner) findViewById(R.id.planspinner);
    List<String> planlist = new ArrayList<String>();
    planlist.add("Elite Regular Plan");
    planlist.add("Elite Super Plans");
    planlist.add("Emirati Plan");
    planlist.add("Pay As You Go");
    planlist.add("Visitor Mobile Line");
    ArrayAdapter<String> planAdapter1 = new ArrayAdapter<String>(this,
        android.R.layout.simple_spinner_item, planlist);
    planAdapter1.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
    planspinner1.setAdapter(planAdapter1);

}

private void chooseLargeBusPlan(){

    planspinner2 = (Spinner) findViewById(R.id.planspinner);
    List<String> planlist1 = new ArrayList<String>();
    planlist1.add("Premier Plan");
    planlist1.add("The Executive Plan");
    planlist1.add("Business Circle Plan");
    planlist1.add("Business Diamond Plan");
    ArrayAdapter<String> planAdapter2 = new ArrayAdapter<String>(this,
        android.R.layout.simple_spinner_item, planlist1);
    planAdapter2.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
    planspinner2.setAdapter(planAdapter2);


}
private void chooseSmallMedPlan(){

    planspinner2 = (Spinner) findViewById(R.id.planspinner);
    List<String> planlist2 = new ArrayList<String>();
    planlist2.add("Business Super Plan");
    planlist2.add("Her Business Super Plan");
    planlist2.add("Business Circle Plan");
    planlist2.add("Pay As you Go® Plus");
    ArrayAdapter<String> planAdapter3 = new ArrayAdapter<String>(this,
        android.R.layout.simple_spinner_item, planlist2);
planAdapter3.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
planspinner2.setAdapter(planAdapter3);

}


public class planOnClickListener implements OnItemSelectedListener {

         @Override
        public void onItemSelected(AdapterView<?> parent, View v, int pos,
                long id) {

            parent.getItemAtPosition(pos);  

            if (pos==0){
            choosePersonalPlan();   
            }else if (pos==1){
            chooseLargeBusPlan();
            } else if (pos==2){
            chooseSmallMedPlan();
 }
        }
        @Override
        public void onNothingSelected(AdapterView<?> arg0) {
            // TODO Auto-generated method stub

        }
        }
}

这篇关于使用两款Android纱厂一个因另一的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！

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使用两款Android纱厂一个因另一 [英] using Two android spinners one dependent on the other

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使用两款Android纱厂一个因另一 [英] using Two android spinners one dependent on the other

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