Sort

Final result preview

The sort functionality will be available throughout the dialogue, which can be accessed via the toolbar menu.

Toolbar menu

Similarly to the layout files, the toolbar menu can be defined by XML tags and attributes. Let’s create a main_menu.xml file in the res/menu folder.

Define a root menu tag along with a child item tag. The item tag describes menu item properties, via XML attributes:

• The id attribute specifies the unique id of the menu item

• The title attribute specificities title of the menu item

• The showAsAction attribute ...