Using SearchView
Now that FlickrFetchr supports searching, it is time to add a way for the user to enter a query and initiate a search. Do this by adding a SearchView.
SearchView is an action view – a view that may be included within the toolbar. SearchView allows your entire search interface to live within your application’s toolbar.
First, confirm that a toolbar (containing your app title) appears at the top of your app. If not, follow the steps outlined in Chapter 13 to add a toolbar to your app.
Next, create a new menu XML file for PhotoGalleryFragment in res/menu/fragment_photo_gallery.xml. This file will specify the items that should appear in the toolbar.
Listing 25.6 Adding menu XML file (res/menu/fragment_photo_gallery.xml ...
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