Question

enter the youtube app -> click on browse, there would be a category list, all the edges of which fades out at both ends, this looks very nice and silky, any one has an idea how to achieve that? Thanks

Answer 1

I thought this was the default. You can control this with fadingEdge in xml:

android:fadingEdge="vertical"

or in Java:

listView.setVerticalFadingEdgeEnabled(true);

For bonus points you can increase the length of the fading edge using:

android:fadingEdgeLength="50dp"

I don’t think there is a Java equivalent for that.

Edit – for the divider you can use a gradient shape drawable to get that effect. For example, in res/drawable/divider.xml:

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle">
    <gradient
        android:startColor="#00000000"
        android:centerColor="#808080"
        android:endColor="#00000000"
        android:angle="0"/>
</shape>

and then set it with android:divider="@drawable/divider" and possibly android:dividerHeight="1dp" on your ListView.