In the markup file:

Property android:divider set the color of the separator:

 android:divider="#RRGGBB" 

At the same time, it is necessary to set the height of the delimiter android:dividerHeight (otherwise the delimiter will not be visible):

 android:dividerHeight="4px" 

Full example:

 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="wrap_content" android:layout_height="wrap_content"> <ListView android:id="@+id/android:list" android:layout_width="wrap_content" android:layout_height="wrap_content" android:divider="#RRGGBB" android:dividerHeight="4px"/> </LinearLayout> 

In code

Using the methods ListView.setDivider , ListView.setDividerHeight and one of the gradient classes:

• ColorDrawable for a normal delimiter:

   list.setDivider(new ColorDrawable(0xAARRGGBB)); list.setDividerHeight(4); 

  (using context.getResources().getColor(R.color.некоторый_id) you can get the color specified in the resources)

• GradientDrawable :

   ListView list = ... int[] colors = {0, 0xFFFF0000, 0}; // красный цвет для примера list.setDivider(new GradientDrawable(Orientation.RIGHT_LEFT, colors)); list.setDividerHeight(4); 

In both, you must first set the color of the separator, and then its height, otherwise the separator will not be visible.