ExpandableListView Android中的多个Textview [英] Multiple Textviews in ExpandableListView Android

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本文介绍了ExpandableListView Android中的多个Textview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

我目前有一个可扩展的列表视图，这个列表视图很好。但是，当子视图正在填充时，会为每个条目创建个人视图和行。我希望在视图中有一个视图和多个文本视图，以及一个我将添加的按钮。数据正在从HASHMAP填充。我已经尝试了很多东西，无法获得多个文字浏览器在列表视图中正确填充。
所有数据都来自这个hashmap：

  private HashMap< String，List< String>> _deviceDetails;

这是我的自定义适配器的get子视图方法。

  @Override 
 public View getChildView（int groupPosition，final int childPosition，
 boolean isLastChild，View convertView，ViewGroup parent）{
 
 final String childText =（String）getChild（groupPosition，childPosition）; 
 
 if（convertView == null）{
 LayoutInflater infalInflater =（LayoutInflater）this._context 
 .getSystemService（Context.LAYOUT_INFLATER_SERVICE）; 
 convertView = infalInflater.inflate（R.layout.list_item，null）; 
} 
 
 TextView txtListChild =（TextView）convertView 
 .findViewById（R.id.lblListItem）; 
 
 txtListChild.setText（childText）; 
返回convertView; 
}

这是我现在想要做的事情的图像。

解决方案

我是个白痴。我想到了。谢谢你@Krupal你指出我正确的方向。如果你把任何东西当作答案，我会选择你，因为你让我思考正确的方式。

所以我最终在这里做的是我创建了一个自定义列表适配器。我不会添加整个班级来保持简短。关键是要使用适配器来只返回一个孩子。然后在返回的孩子（下面的XML）中，我添加了所有需要的字段。所以现在，当我扩展列表时，只有一个孩子可见。同样在我的getChildView（）中，我为孩子们定义了所有需要的布局条目。不知道这是否是完美的方式，但是可以很好地满足我的需求。



这是我使用我的数据实际配置孩子的地方。 

  @Override 
 public View getChildView（int groupPosition，final int childPosition，
 boolean isLastChild，View convertView，ViewGroup parent）{
 
 final String childText =（String）getChild（groupPosition，0）; 
 final String childTextSecond =（String）getChild（groupPosition，1）; 
 final String childTextThird =（String）getChild（groupPosition，2）; 
 final String deviceName =（String）getChild（groupPosition，3）; 
 if（convertView == null）{
 LayoutInflater infalInflater =（LayoutInflater）this._context 
 .getSystemService（Context.LAYOUT_INFLATER_SERVICE）; 
 convertView = infalInflater.inflate（R.layout.list_item，null）; 
} 
 
 TextView txtListChild =（TextView）convertView 
 .findViewById（R.id.lblListItem）; 
 
 TextView txtListChildTwo =（TextView）convertView 
 .findViewById（R.id.lblListItemTwo）; 
 
 TextView txtListChildThree =（TextView）convertView 
 .findViewById（R.id.lblListItemThree）; 
 
 //其余逻辑！

设置孩子数为1 

  @Override 
 public int getChildrenCount（int groupPosition）{
 return 1;

子元素的XML布局 

 <？xml version =1.0encoding =utf-8？> 
< LinearLayout xmlns：android =http://schemas.android.com/apk/res/android
 android：orientation =verticalandroid：layout_width =match_parent
 android：layout_height =match_parent
 android：background =＃000000> 
 
< RelativeLayout 
 android：layout_width =340dp
 android：layout_height =wrap_content
 android：layout_gravity =center_horizo​​ntal | right
机器人：背景= ＃f9fcff > 
 
< LinearLayout 
 android：orientation =vertical
 android：layout_width =match_parent
 android：layout_height =fill_parent
 android： layout_centerHorizo​​ntal =true
 android：layout_alignParentTop =true
 android：background =＃4d86ff> 
 
< RelativeLayout 
 android：layout_width =match_parent
 android：layout_height =45dp
 android：layout_gravity =center_horizo​​ntal> 
 
< TextView 
 android：layout_width =wrap_content
 android：layout_height =wrap_content
 android：textAppearance =@ android：style / TextAppearance.Medium 
 android：layout_marginLeft =10dp
 android：text =大文本
 android：id =@ + id / lblListItem
 android：textColor =＃ffffff 
 android：layout_alignTop =@ + id / textView5
 android：layout_toRightOf =@ + id / textView5
 android：layout_toEndOf =@ + id / textView5/> 
 
  android：layout_width =wrap_content
 android：layout_height =wrap_content
 android：layout_marginLeft =15dp
 android： textAppearance =@ android：style / TextAppearance.Medium
 android：text =设备ID：
 android：id =@ + id / textView5
 android：layout_centerVertical =true 
 android：layout_alignParentLeft =true
 android：layout_alignParentStart =true
 android：textColor =＃ffffff/>


I currently have an expandable list view that is populating just fine. However when the child view is filling it creates individuals views and rows for each entry. I would like to have one view and multiple textviews in the view as well as a button that I will be adding. The data is being populated from a HASHMAP. I have tried many things and cannot get multiple textviews to populate correctly in the listview. All data comes from this hashmap:

 private HashMap<String, List<String>> _deviceDetails;

This is the get child view method of my custom adapter.

@Override
public View getChildView(int groupPosition, final int childPosition,
                         boolean isLastChild, View convertView, ViewGroup parent) {

    final String childText = (String) getChild(groupPosition, childPosition);

    if (convertView == null) {
        LayoutInflater infalInflater = (LayoutInflater) this._context
                .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        convertView = infalInflater.inflate(R.layout.list_item, null);
    }

    TextView txtListChild = (TextView) convertView
            .findViewById(R.id.lblListItem);

    txtListChild.setText(childText);
    return convertView;
}

This is an image of what I have now with what I wish to do.

I need the data highlighted inside of one row so that I can add buttons etc without a bunch of rows. I genuinely cannot figure out how to do this properly.

解决方案

I'm an idiot. I figured it out. Thank you @Krupal you pointed me in the right direction. If you place anything as an answer i'll select you because you got me thinking the right way.

So what I ended up doing here was I created a custom List Adapter. I won't add the entire class to keep it short. The key was to use set the adapter to only return one child. Then in the child that was returned (XML below) I had all of my needed fields added in. So now when I expanded the list only one child would be visible. Also in my getChildView() I defined all needed entries for the layout for the children. Don't know if this is the perfect way to do it but worked nicely for my needs.

This is where I actually configured the child with my data.

  @Override
public View getChildView(int groupPosition, final int childPosition,
                         boolean isLastChild, View convertView, ViewGroup parent) {

    final String childText = (String) getChild(groupPosition, 0);
    final String childTextSecond = (String) getChild(groupPosition, 1);
    final String childTextThird = (String) getChild(groupPosition, 2);
    final String deviceName = (String) getChild(groupPosition, 3);
    if (convertView == null) {
        LayoutInflater infalInflater = (LayoutInflater) this._context
                .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        convertView = infalInflater.inflate(R.layout.list_item, null);
    }

    TextView txtListChild = (TextView) convertView
            .findViewById(R.id.lblListItem);

    TextView txtListChildTwo = (TextView) convertView
            .findViewById(R.id.lblListItemTwo);

    TextView txtListChildThree = (TextView) convertView
            .findViewById(R.id.lblListItemThree);

    //rest of logic!
}

Setting the children count to 1

@Override
public int getChildrenCount(int groupPosition) {
    return 1;
}

XML Layout for the child elements

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#000000">

<RelativeLayout
    android:layout_width="340dp"
    android:layout_height="wrap_content"
    android:layout_gravity="center_horizontal|right"
    android:background="#f9fcff">

    <LinearLayout
        android:orientation="vertical"
        android:layout_width="match_parent"
        android:layout_height="fill_parent"
        android:layout_centerHorizontal="true"
        android:layout_alignParentTop="true"
        android:background="#4d86ff">

        <RelativeLayout
            android:layout_width="match_parent"
            android:layout_height="45dp"
            android:layout_gravity="center_horizontal">

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:textAppearance="@android:style/TextAppearance.Medium"
                android:layout_marginLeft="10dp"
                android:text="Large Text"
                android:id="@+id/lblListItem"
                android:textColor="#ffffff"
                android:layout_alignTop="@+id/textView5"
                android:layout_toRightOf="@+id/textView5"
                android:layout_toEndOf="@+id/textView5" />

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginLeft="15dp"
                android:textAppearance="@android:style/TextAppearance.Medium"
                android:text="Device ID: "
                android:id="@+id/textView5"
                android:layout_centerVertical="true"
                android:layout_alignParentLeft="true"
                android:layout_alignParentStart="true"
                android:textColor="#ffffff" />

            <Button
                style="?android:attr/buttonStyleSmall"
                android:layout_width="80dp"
                android:layout_height="wrap_content"
                android:text="Tags"
                android:id="@+id/btnTags"
                android:background="#ffffff"
                android:singleLine="true"
                android:layout_alignTop="@+id/lblListItem"
                android:layout_alignParentRight="true"
                android:layout_alignParentEnd="true"
                android:layout_marginRight="15dp"
                android:layout_marginEnd="15dp" />
        </RelativeLayout>

        <RelativeLayout
            android:layout_width="match_parent"
            android:layout_height="45dp"
            android:layout_gravity="center_horizontal">

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginLeft="15dp"
                android:textAppearance="@android:style/TextAppearance.Medium"
                android:text="Status: "
                android:id="@+id/textView6"
                android:layout_centerVertical="true"
                android:layout_alignParentLeft="true"
                android:layout_alignParentStart="true"
                android:textColor="#ffffff" />

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginLeft="10dp"
                android:textAppearance="@android:style/TextAppearance.Medium"
                android:text="Large Text"
                android:id="@+id/lblListItemTwo"
                android:textColor="#ffffff"
                android:layout_alignTop="@+id/textView6"
                android:layout_toRightOf="@+id/textView6"
                android:layout_toEndOf="@+id/textView6" />
        </RelativeLayout>

        <RelativeLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_gravity="center_horizontal">

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginLeft="15dp"
                android:layout_marginBottom="10dp"
                android:textColor="#ffffff"
                android:textAppearance="@android:style/TextAppearance.Medium"
                android:text="Description: "
                android:id="@+id/textView7"
                android:layout_marginStart="15dp"
                android:layout_alignTop="@+id/lblListItemThree"
                android:layout_alignParentLeft="true"
                android:layout_alignParentStart="true" />

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginLeft="20dp"
                android:layout_marginTop="6dp"
                android:layout_marginRight="13dp"
                android:layout_marginBottom="10dp"
                android:textAppearance="@android:style/TextAppearance.Medium"
                android:text="Large Text"
                android:id="@+id/lblListItemThree"
                android:textColor="#ffffff"
                android:layout_marginStart="39dp"
                android:layout_alignParentTop="true"
                android:layout_toRightOf="@+id/textView7"
                android:layout_toEndOf="@+id/textView7" />

        </RelativeLayout>
    </LinearLayout>
</RelativeLayout>

这篇关于ExpandableListView Android中的多个Textview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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