Android ListView里面的相对布局

Question

Have somebody implemented ExpandableListView inside layout? I'm trying to do it and I have problems with height. I want to make it "wrap_content" in order to see fully expanded View when it is expanded. But unfortunately with "wrap_content" parameter I cannot achieve this result. Can somebody help?

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

<ScrollView
    android:layout_width="fill_parent"
    android:layout_height="fill_parent">

<RelativeLayout 
    android:layout_width="wrap_content"
    android:layout_height="fill_parent" >

<TextView
    android:id="@+id/user"
    android:layout_width="match_parent"
    android:layout_height="100dp"
    android:layout_alignParentTop="true"
    android:layout_below="@+id/rl"
    android:layout_toRightOf="@+id/user"
    android:paddingLeft="3dp"
    android:text="Top User"
    android:textColor="#000000"
    android:textSize="22dp" />

<ExpandableListView
    android:id="@+id/elvMain"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_below="@+id/user"
    android:layout_above="@+id/about" >
</ExpandableListView>

<TextView
    android:id="@+id/about"
    android:layout_width="match_parent"
    android:layout_height="100dp"
    android:layout_alignParentBottom="true"
    android:text="Bottom About"
    android:textColor="#6f6f6f"
    android:textSize="24dp"
    android:textStyle="bold" />
</RelativeLayout>
</ScrollView>
    </RelativeLayout>

Group row in ExpandableListView:

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

  <TextView android:id="@+id/groupname"
  xmlns:android="http://schemas.android.com/apk/res/android"
  android:textStyle="bold"
  android:textSize="20dp"
  android:paddingLeft="40dp"
  android:layout_width="match_parent"
  android:layout_height="wrap_content"
  android:minHeight="?android:attr/listPreferredItemHeight"
  android:textAppearance="?android:attr/textAppearanceLarge"
  android:background="@drawable/expanded_upper_selector"
  android:gravity="center_vertical"/>

Child Row:

<?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="wrap_content"
android:background="@drawable/ingredients_selector">



<TextView android:id="@+id/ingredients_second_layer_text"
     android:textStyle="bold"
     android:textSize="20dp"
     android:paddingLeft="50dp"
     android:paddingRight="50dp"
     android:textColor="@color/dark_orange"
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
     android:minHeight="?android:attr/listPreferredItemHeight"
     android:textAppearance="?android:attr/textAppearanceLarge"
     android:gravity="center_vertical"/>

Answer 1

Try your XML edited some-much:

Your_XYZ_Main_XML::

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent" >
    <ScrollView
        android:id="@+id/scrollView1"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:layout_centerHorizontal="true"
        android:layout_centerVertical="true"
        android:background="#000000" >

        <LinearLayout
            android:orientation="vertical"
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            android:background="#00ff00" >

            <TextView
                android:id="@+id/user"
                android:layout_width="match_parent"
                android:layout_height="100dp"
                android:paddingLeft="3dp"
                android:text="Top User"
                android:textColor="#111111"
                android:background="#eeeeee"
                android:textSize="22dp" />
            <ExpandableListView
                android:id="@+id/elvMain"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_weight="1" >
            </ExpandableListView>
            <TextView
                android:id="@+id/about"
                android:layout_width="match_parent"
                android:layout_height="100dp"
                android:text="Bottom About"
                android:textColor="#6f6f6f"
                android:textSize="24dp"
                android:textStyle="bold" />

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

Group_Row_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:orientation="vertical" >

        <TextView
            xmlns:android="http://schemas.android.com/apk/res/android"
            android:id="@+id/groupname"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:background="#159357"  //  YOUR_BACKGROUND
            android:gravity="center_vertical"
            android:minHeight="?android:attr/listPreferredItemHeight"
            android:paddingLeft="40dp"
            android:text="Parent text"
            android:textAppearance="?android:attr/textAppearanceLarge"
            android:textSize="20dp"
            android:textStyle="bold" />

    </RelativeLayout>

Child_Row_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:orientation="vertical" >


<TextView android:id="@+id/ingredients_second_layer_text"
     android:textStyle="bold"
     android:textSize="20dp"
     android:paddingLeft="50dp"
     android:paddingRight="50dp"
     android:textColor="#ff2211"  //  YOUR_COLOR
     android:text="Child Text"
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
     android:minHeight="?android:attr/listPreferredItemHeight"
     android:textAppearance="?android:attr/textAppearanceLarge"
     android:gravity="center_vertical"/>


</RelativeLayout>

Answer 2

Check out this link - http://about-android.blogspot.in/2010/04/steps-to-implement-expandablelistview.html

Here only one custom text is added.in similar way you can add second one.Try this and if any query you can feel free to ask.Hope this will help you.