Add Recent Query Suggestions

[AEFeinstein]

Modify CardSearchProvider to return a cursor with recent queries when a search is performed. I think this requires creating a new database table for recent queries and returning a cursor to that table's columns when there is no text to suggest with yet.

It also requires saving queries to that table whenever a search by name is performed from anywhere.

Android documentation: https://developer.android.com/guide/topics/search/adding-recent-query-suggestions.html

[ivancea]

The name AutoCompleteTextView is already showing matching card names.
How do you want to also add recent queries? Maybe show like the last 2 queries and below the cards to autocomplete? Any idea about that?

[AEFeinstein]

The idea isn't to show the recent and autocomplete options at the same time. The string to match is in selectionArgs[0] and if that's two or fewer characters long, instead of returning the cursor from getCardsByNamePrefix() (or null) you'd return a cursor of recent search terms. That cursor just needs a column called KEY_NAME.

To populate that database, you need to save the name from where SearchViewFragment creates ResultListFragments and case Intent.ACTION_SEARCH in FamiliarActivity. I think those are the only locations searches are done from.