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G'day everyone, welcome back. The next
improvement to our SettingsDialog, is to

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give it a title. We could have put a
title in the layout of course.

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That's easy, which is why I didn't do it.
Setting a title for a Dialog should be

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easy, and before API 23, it was. Unfortunately,

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Google changed the default value in API
23, and just setting the title doesn't

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work on devices running marshmallow or
above. That change has also been made in

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the Android X libraries. If you've
switched to those, rather than AppCompat,

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and we recommended that you do, then the
title won't display on older Android

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devices, either. So let's see how to do it
properly. The first step is to add a call

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to the dialog's SetTitle function. I'll do
that in onViewCreated. The dialog won't

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be null by the time onViewCreated is
called, but we still need to use the safe

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call operator. I've used the same string
resource that provides the text for the

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menu which seems to be a sensible thing
to do. If the menu item says settings,

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then that's a good title for the dialog.
Okay, I'm not gonna run the app because

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it's not going to work. To make it work,
we need to override the style for the

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dialog. We do that in the Styles dot XML
file in res slash values.

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It's that windowNoTitle attribute
that's changed, from defaulting to false,

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to now defaulting to true. This style sets
back to false

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I used Theme.AppCompat.Light.Dialog.Alert as the parent, because our

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AppTheme on line four is Theme. AppCompat.Light.DarkActionBar. If you

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used a different theme as the AppTheme,
then the parent for the dialog style

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should reflect that. The next step is to
apply the style to our dialog. We do

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that back in SettingsDialog, in the onCreateFunction.

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I'll generate that before onCreateView. Make sure you
generate the right function, because

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there are quite a few that start with onCreate, and it's easy to choose the wrong one.

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Alright, that's all we need to do. As I
said, we could have set the title in our

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layout, but I wanted to show you this way
so you don't waste hours trying to work

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out why your title doesn't appear, if you
want to set it in code. I'll run the app to

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make sure it works, and there's the title
on our SettingsDialog. In the next video,

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I want to show you how to prevent a
fragment from being destroyed, when its

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activity gets destroyed. See you in the
next one.