ListView的行项目中ViewPager [英] ViewPager within ListView row item
问题描述
我已经读了很多关于这个问题相关的问题。然而，他们中没有得到回答。我想一个 ViewPager 添加到的ListView ，其中有寻呼机内的两个布局每一行。我相信这是因为可行的 SwipeListView 的
现在我已经实现了。然而，一个空白页面是显示在中间的线。没有行正在出现。
下面是我的code：
MainActivity + ArrayAdapter
公共类MainActivity延伸活动{ ListView控件列表;
的String []英雄; @覆盖
保护无效的onCreate（捆绑savedInstanceState）{
super.onCreate（savedInstanceState）;
的setContentView（R.layout.activity_main）; 英雄= getResources（）getStringArray（R.array.heros）。 名单=（ListView控件）findViewById（R.id.listView1）;
list.setAdapter（新CustomAdapter（这一点，英雄））;
} 公共类CustomAdapter扩展ArrayAdapter＆LT;串GT;
{
的String []英雄;
上下文语境;
公共CustomAdapter（上下文的背景下，字符串[]英雄）{
超（背景下，R.layout.pager_item_list，R.id.listView1，英雄）;
// TODO自动生成构造函数存根
this.heros =英雄;
this.context =背景;
} @覆盖
公共查看getView（INT位置，查看convertView，父母的ViewGroup）{
// TODO自动生成方法存根
LayoutInflater吹气=（LayoutInflater）context.getSystemService（Context.LAYOUT_INFLATER_SERVICE）;
查看排= inflater.inflate（R.layout.pager_item_list，父母，假）; Log.d（多少次，我真的不知道应该如何）; ViewPager寻呼机=（ViewPager）row.findViewById（R.id.pager）;
pager.setId（位置）;
pager.setAdapter（新PagerCustomAdapter（））; pager.setCurrentItem（0）; 返回行;
}
}
}
下面是我的pageAdapter
公共类PagerCustomAdapter扩展PagerAdapter {
@覆盖
公众诠释的getCount（）{
// TODO自动生成方法存根
返回2;
} @覆盖
公共对象instantiateItem（View容器，INT位置）{
// TODO自动生成方法存根 LayoutInflater吹气=（LayoutInflater）container.getContext（）getSystemService（Context.LAYOUT_INFLATER_SERVICE）。
INT标识= 0; Log.d（我在pagerAdater，我在这里，该死！）; 开关（位置）
{
情况下0：
ID = R.layout.fragment_top_item;
打破;
情况1：
ID = R.layout.fragment_bottom_item;
打破;
}
查看查看= inflater.inflate（ID，NULL）;
（（ViewPager）容器）.addView（视图，0）;
返回视图。
} @覆盖
公共无效destroyItem（查看为arg0，ARG1 INT，对象ARG2）{
（（ViewPager）为arg0）.removeView（（查看）ARG2）;
} @覆盖
公共布尔isViewFromObject（查看为arg0，ARG1对象）{
// TODO自动生成方法存根
返回将arg0 ==（（查看）ARG1）;
} @覆盖
公共Parcelable saveState和（）{
返回null;
}}
我已经试过这两个 pagerAdapter ＆安培; FragmentPagerAdapter 和两个有同样的结果。
我添加了两个日志消息 getView（）和 instantiateItem（）和两个正在读在logcat的预期。既没有警告也没有错误在 LogCat中。
我是什么失踪？
更新
activity_main的XML
＆LT; RelativeLayout的
的xmlns：机器人=http://schemas.android.com/apk/res/android
的xmlns：工具=http://schemas.android.com/tools
机器人：layout_width =match_parent
机器人：layout_height =match_parent
机器人：paddingBottom会=@扪/ activity_vertical_margin
机器人：paddingLeft =@扪/ activity_horizontal_margin
机器人：paddingRight =@扪/ activity_horizontal_margin
机器人：paddingTop =@扪/ activity_vertical_margin
工具：上下文=MainActivity。＆GT;＆LT; ListView控件
机器人：ID =@ + ID / ListView1的
机器人：layout_width =match_parent
机器人：layout_height =WRAP_CONTENT
机器人：layout_centerHorizontal =真
机器人：layout_centerVertical =真正的＆GT;
＆LT; /＆的ListView GT;＆LT; / RelativeLayout的＆GT;
pager_item_list的XML
＆LT;？XML版本=1.0编码=UTF-8＆GT？;
＆LT; LinearLayout中的xmlns：机器人=http://schemas.android.com/apk/res/android
机器人：layout_width =FILL_PARENT
机器人：layout_height =FILL_PARENT
机器人：方向=垂直＆GT; ＆LT; android.support.v4.view.ViewPager
机器人：ID =@ + ID /寻呼机
机器人：layout_width =match_parent
机器人：layout_height =match_parent＆GT;
＆LT; /android.support.v4.view.ViewPager>
＆LT; / LinearLayout中＆GT;
我不知道你想实现..你想要当一个事件发生更改视图是什么？当你点击样的？还是要像SwipeListView相同的结果。
如果您要更改视图，您coult尝试使用 ViewFlipper
ANC更改布局事件发生时。但我不知道这是你想要的结果。
I have read a lot of related questions regarding this question. However, none of them has been answered. I am trying to add a ViewPager to each row in the ListView where there are two layouts within the pager. I believe this is doable because of SwipeListView.
Now I have implemented it. However, a blank page is showing with a line in the middle. No rows are appearing.
Here is my code:
MainActivity + ArrayAdapter
public class MainActivity extends Activity {
ListView list;
String[] heros;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
heros = getResources().getStringArray(R.array.heros);
list = (ListView) findViewById(R.id.listView1);
list.setAdapter(new CustomAdapter(this, heros));
}
public class CustomAdapter extends ArrayAdapter<String>
{
String[] heros;
Context context;
public CustomAdapter(Context context, String[] heros) {
super(context, R.layout.pager_item_list, R.id.listView1, heros);
// TODO Auto-generated constructor stub
this.heros = heros;
this.context = context;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View row = inflater.inflate(R.layout.pager_item_list, parent, false);
Log.d("how many times", "I really don't know how it should be");
ViewPager pager = (ViewPager) row.findViewById(R.id.pager);
pager.setId(position);
pager.setAdapter(new PagerCustomAdapter());
pager.setCurrentItem(0);
return row;
}
}
}
Here is my pageAdapter
public class PagerCustomAdapter extends PagerAdapter{
@Override
public int getCount() {
// TODO Auto-generated method stub
return 2;
}
@Override
public Object instantiateItem(View container, int position) {
// TODO Auto-generated method stub
LayoutInflater inflater = (LayoutInflater) container.getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
int id = 0;
Log.d("I am in pagerAdater", "I am here, dammit!");
switch(position)
{
case 0:
id = R.layout.fragment_top_item;
break;
case 1:
id = R.layout.fragment_bottom_item;
break;
}
View view = inflater.inflate(id, null);
((ViewPager)container).addView(view, 0);
return view;
}
@Override
public void destroyItem(View arg0, int arg1, Object arg2) {
((ViewPager) arg0).removeView((View) arg2);
}
@Override
public boolean isViewFromObject(View arg0, Object arg1) {
// TODO Auto-generated method stub
return arg0 == ((View) arg1);
}
@Override
public Parcelable saveState() {
return null;
}
}
I have tried both pagerAdapter & FragmentPagerAdapter and both had the same result
I added two log messages in getView() and instantiateItem() and both are being read in logcat as expected. There are neither warnings nor errors in LogCat.
What am I missing?
Update
XML of activity_main
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".MainActivity" >
<ListView
android:id="@+id/listView1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true" >
</ListView>
</RelativeLayout>
XML of pager_item_list
<?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" >
<android.support.v4.view.ViewPager
android:id="@+id/pager"
android:layout_width="match_parent"
android:layout_height="match_parent" >
</android.support.v4.view.ViewPager>
</LinearLayout>
I am not sure what you're trying to achieve.. Do you want to change the view when a event happens? like when you click on it? or do you want the same result like the SwipeListView.
If you want to change the view you coult try to use a ViewFlipper anc change the layout when the event occurs. But i'm not sure if this is the result you want
这篇关于ListView的行项目中ViewPager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！
