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POAndroid - RelativeLayout as item overlay in ListView
 

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  1. POAndroid - RelativeLayout as item overlay in ListView
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    <p>I have a ListView backed up by a BaseAdapter. The layout that I'm using is a RelativeLayout with some TextViews and ImageViews that are rendering ok. The problem is that I want to grey out some items in the list. I created an empty RelativeLayout that should match the parent height and width, but it doesn't render at all unless I put for example a TextView in it. Why is this behavior and how can I grey an ListView item out ?</p> <p>Thanks!</p> <p>The layout is here:</p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; </code></pre> <p></p> <pre><code>&lt;RelativeLayout android:layout_width="match_parent" android:layout_height="match_parent" android:paddingBottom="10dp" android:paddingTop="10dp" &gt; &lt;RelativeLayout android:id="@+id/leftIcon" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentRight="true" android:layout_centerVertical="true" android:layout_marginRight="10dp" &gt; &lt;ImageView android:id="@+id/item_arrow" android:layout_width="wrap_content" android:layout_height="wrap_content" android:background="@drawable/list_item_arrow" android:contentDescription="@null" android:visibility="gone" /&gt; &lt;ImageView android:id="@+id/item_plus" android:layout_width="wrap_content" android:layout_height="wrap_content" android:background="@drawable/icon_plus" android:contentDescription="@null" android:visibility="gone" /&gt; &lt;ImageView android:id="@+id/item_arrow_down" android:layout_width="wrap_content" android:layout_height="wrap_content" android:background="@drawable/list_item_arrow_down" android:contentDescription="@null" android:visibility="gone" /&gt; &lt;/RelativeLayout&gt; &lt;TextView android:id="@+id/textViewCount" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerVertical="true" android:layout_marginLeft="10dip" android:layout_marginRight="20dip" android:layout_toLeftOf="@id/leftIcon" android:textColor="@color/font_dark_gray" android:textSize="17sp" android:textStyle="bold" /&gt; &lt;TextView android:id="@+id/menu_item_name" style="@style/MenuRowStyle" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentLeft="true" android:layout_centerVertical="true" android:layout_marginLeft="10dp" android:layout_toLeftOf="@id/textViewCount" android:ellipsize="end" android:lines="1" /&gt; &lt;/RelativeLayout&gt; &lt;!-- Problematic overlay layout --&gt; &lt;RelativeLayout android:id="@+id/overlay" android:layout_width="match_parent" android:layout_height="match_parent" android:background="grey_color_code" android:layout_centerInParent="true" android:visibility="visible" &gt; &lt;!-- If this is not here the overlay doesn not render on screen --&gt; &lt;TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerVertical="true" android:layout_marginLeft="10dip" android:layout_marginRight="20dip" android:layout_toLeftOf="@id/leftIcon" android:textColor="@color/font_dark_gray" android:textSize="17sp" android:textStyle="bold" /&gt; &lt;/RelativeLayout&gt; &lt;/RelativeLayout&gt; </code></pre>
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