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With the functionality of our app complete, let's take a quick look at some additional features we can add.
Additional Resources
RecyclerView options
Wasabeef GitHub repo
Treehouse Animations and Transitions course
Our application is in pretty good shape.
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There is, however,
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one other thing we can do to help
the performance of our RecyclerView.
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We can enable an optimization for cases
when the size of the data set is static.
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In our case, the hourly forecast we're
getting back from Dark Sky will always
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have the same number of items.
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We won't be adding or deleting any items.
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So, inside HourlyForecastActivity,
we'll want to add this line.
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So, after we've done our binding,
do binding.hourlyListItems,
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we'll use setHasFixedSize, set it to true.
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This allows the RecyclerView to
perform several optimizations
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by knowing in advance that the size won't
be affected by the adapter contents.
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While we're done with this app for now,
I would like to stress that RecyclerView
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is very flexible and customizable,
with a lot of available options.
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If we take a look at the documentation,
we can find a list of public methods,
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and see a lot of them listed out.
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For example, if we want to add
a dividing line between our list items,
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we can use this addItemDecoration method.
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So we go back to our app.
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Down here.
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We can do binding.
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HourlyListItems, we'll andItemDecoration.
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We can pass in, for
example, a divider line.
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We'll do a new DividerItemDecoration.
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Context is this.
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And we'll do a DividerItemDecoration.
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And we want it to be vertical.
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Let's see what that looks like.
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Run our app again.
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Go over to the hourly forecast,
and there's our divider lines.
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Perhaps not needed in the Stormy app,
but it doesn't look too bad.
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There's definitely lots of ways to
enhance an app with RecyclerView.
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I'd encourage you to see what you
can do to make this app even better.
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There are some great
animations available from,
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I'm not sure how to pronounce this
exactly, wasabeef's GitHub site.
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You could try implementing some
of these into your project.
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Or Treehouse offers a great course
on animations and transitions,
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check the teacher's notes for links
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