I have just created an expandable RecyclerView with different views as every parent item have a child My case is when expanding parent item it view it's child with a vertical spacing between each child Item like this
as this is my main XML File
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#dedede"
tools:context="abtech.waiteriano.com.waitrer.MainPaymentActivity">
<RelativeLayout
android:id="@+id/relativeLayout2"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentStart="true"
android:layout_alignParentTop="true"
android:layout_marginTop="19dp"
android:background="#ffffff">
<EditText
android:id="@+id/checkNoET"
android:layout_width="140dp"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_toEndOf="@+id/imageView7"
android:editable="false"
android:ems="10"
android:gravity="right"
android:text="505050505050"
android:textSize="12dp">
<requestFocus />
</EditText>
<TextView
android:id="@+id/checkNo"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="@+id/checkNoET"
android:layout_alignBottom="@+id/checkNoET"
android:layout_marginStart="10dp"
android:layout_toEndOf="@+id/imageView7"
android:text="Check#"
android:textColor="@color/colorPrimary"
android:textSize="12dp"
android:textStyle="bold" />
<ImageView
android:id="@+id/imageView7"
android:layout_width="25dp"
android:layout_height="wrap_content"
android:layout_alignBottom="@+id/checkNoET"
android:layout_alignParentStart="true"
android:layout_alignTop="@+id/checkNoET"
app:srcCompat="@drawable/check" />
<EditText
android:id="@+id/editText"
android:layout_width="130dp"
android:layout_height="wrap_content"
android:layout_alignBaseline="@+id/checkNoET"
android:layout_alignBottom="@+id/checkNoET"
android:layout_alignParentEnd="true"
android:editable="false"
android:ems="10"
android:gravity="end"
android:text="5"
android:textSize="12dp">
<requestFocus />
</EditText>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="@+id/editText"
android:layout_alignBottom="@+id/editText"
android:layout_alignStart="@+id/editText"
android:layout_marginStart="13dp"
android:text="Coves"
android:textColor="@color/colorPrimary"
android:textSize="12dp"
android:textStyle="bold" />
<ImageView
android:id="@+id/imageView8"
android:layout_width="25dp"
android:layout_height="wrap_content"
android:layout_alignBottom="@+id/editText"
android:layout_toStartOf="@+id/editText"
app:srcCompat="@drawable/covers" />
<EditText
android:id="@+id/tableNo"
android:layout_width="130dp"
android:layout_height="wrap_content"
android:layout_below="@+id/checkNoET"
android:layout_toEndOf="@+id/imageView7"
android:editable="false"
android:ems="10"
android:gravity="end"
android:text="25"
android:textSize="12dp">
<requestFocus />
</EditText>
<TextView
android:id="@+id/textView13"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="@+id/tableNo"
android:layout_alignBottom="@+id/tableNo"
android:layout_alignStart="@+id/checkNo"
android:text="Table"
android:textColor="@color/colorPrimary"
android:textSize="12dp"
android:textStyle="bold" />
<ImageView
android:id="@+id/imageView9"
android:layout_width="25dp"
android:layout_height="wrap_content"
android:layout_alignParentStart="true"
android:layout_below="@+id/checkNoET"
app:srcCompat="@drawable/tablepay" />
<EditText
android:id="@+id/editText14"
android:layout_width="130dp"
android:layout_height="wrap_content"
android:layout_alignBaseline="@+id/tableNo"
android:layout_alignBottom="@+id/tableNo"
android:layout_alignParentEnd="true"
android:editable="false"
android:text="15/10/2017 03:15PM"
android:textColor="#000000"
android:textSize="10dp"
android:textStyle="bold" />
<ImageView
android:id="@+id/imageView10"
android:layout_width="25dp"
android:layout_height="wrap_content"
android:layout_alignBottom="@+id/editText14"
android:layout_toStartOf="@+id/editText14"
app:srcCompat="@drawable/calendar" />
</RelativeLayout>
<RelativeLayout
android:id="@+id/relativeLayout3"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentStart="true"
android:layout_below="@+id/relativeLayout2"
android:layout_marginTop="14dp"
android:background="#ffffff">
<android.support.v7.widget.RecyclerView
android:id="@+id/parentList"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</RelativeLayout>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="220dp"
android:layout_below="@+id/relativeLayout3"
android:layout_marginTop="10dp"
android:background="#ffffff">
<GridView
android:id="@+id/paymentsTypeGV"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:columnWidth="80dp"
android:gravity="center"
android:horizontalSpacing="5dp"
android:numColumns="4"
android:stretchMode="columnWidth"
android:verticalSpacing="5dp"></GridView>
</RelativeLayout>
</RelativeLayout>
my problem is from my xml design and if i is from xml design the problem is in the parent list item ot the child list item or from the main XML File sorry if any thing is not clear enough
