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Let's go back to MainActivity.java,
and now to get the string value

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from the strings.xml file,
we need to reference it through its name.

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Just like when we reference elements
in the layout through their IDs.

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Let's take a brief look at
the Android documentation.

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00:00:14,050 --> 00:00:18,000
This section talks about how to access
string and other types of resources.

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If we scroll down a little bit
we can see an example of how to

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access a string in code with
the ID r.string.hello, or

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in XML with @string/ and
then the string name that we provided.

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This next section is called
accessing resources in code.

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00:00:33,700 --> 00:00:35,690
This has an example,
with a nice little shortcut, but

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I wanna highlight this line here.

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00:00:37,790 --> 00:00:42,160
You can also retrieve individual
resources using methods in Resources,

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which you can get an instance
of with getResources.

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So there is a special
Resources object we can use

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to access all the resources we create and
wrap up in our app, very cool.

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Let's use this resources object.

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00:00:53,780 --> 00:00:56,400
And also use the shortcut
shown in this example.

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The resource's object is available
to us anywhere in our app,

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if we have access to the current context.

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Do you remember what the context
is inside of an activity?

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How do we access the current context here?

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00:01:07,070 --> 00:01:11,360
That's right, all activities
are a subclass of the context class.

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00:01:11,360 --> 00:01:15,130
So we can always access the context
directly in an activity.

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Let's spell this out with the variables,

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although we could put this all
on one line if we'd prefer.

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You can clean your code up after
this explanation if you'd like.

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00:01:21,980 --> 00:01:26,030
So here in our startStory method,
before we try and use the key name,

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let's add a new Resources
variable named resources, and

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we can set it with a method
from the context class.

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Thanks to inheritance that means we
can just type it here getResources and

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sure enough it returns
a resources variable.

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00:01:41,240 --> 00:01:45,598
Next let's add a string variable to
hold our key name String key = and

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00:01:45,598 --> 00:01:49,520
now we can set this from
the Resources instance resources..

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00:01:49,520 --> 00:01:53,523
And then an auto-complete,
let's see there's a getString method and

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00:01:53,523 --> 00:01:55,680
it takes an id as a parameter.

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00:01:55,680 --> 00:01:57,510
So here we can type R., and

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then notice these are all the different
types of resources we can provide.

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We want a string,

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00:02:02,030 --> 00:02:07,170
and then from there we can select
the new name that we enter key_name.

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00:02:07,170 --> 00:02:08,460
Lastly, before we forget,

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00:02:08,460 --> 00:02:12,970
we want to change the hard coded key
here to use our new key variable.

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00:02:12,970 --> 00:02:16,050
Now let's do the same thing
in StoryActivity.java.

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Only this time we'll use a shortcut
available from the activity class.

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00:02:20,180 --> 00:02:25,242
So once again we can delete
the hard coded key name here,

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00:02:25,242 --> 00:02:32,579
and we can call directly getString() and
pass in an ID R.string.key_name.

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00:02:32,579 --> 00:02:36,849
So this method is an additional activity
method that goes through the given

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resources object and

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00:02:38,070 --> 00:02:41,744
lets us access resources using
the ID just like we did before.

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00:02:41,744 --> 00:02:43,510
All right, let's run this and
make sure that it works.

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00:02:45,220 --> 00:02:50,440
Okay so if we add our name, start our
adventure, we should see it in the log.

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00:02:50,440 --> 00:02:51,070
I'll bring it up here.

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00:02:52,410 --> 00:02:54,960
And here we go,
here's the name that we just entered.

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00:02:54,960 --> 00:02:58,060
Okay, there's one more thing I wanna
do before we wrap up this video.

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00:02:58,060 --> 00:03:01,250
So remember in our layouts before,
we had a couple of warnings that we were

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ignoring, that's because I wanted to
use string resources to fix them.

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00:03:05,200 --> 00:03:07,790
So here,
if we go back to the main layout, and

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it's easier to see here in the XML view.

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00:03:09,830 --> 00:03:11,669
So first one is the content description.

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00:03:11,669 --> 00:03:16,427
And we can now use a quick fix to pull
this hard coded string directly into

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a string resource.

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00:03:18,350 --> 00:03:22,430
If we hit alt + Enter to do a quick
fix anywhere in the hard coded string

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we can select Extract string resource.

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00:03:25,310 --> 00:03:27,170
It does everything for
us pretty much automatically.

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00:03:27,170 --> 00:03:29,389
It gives us a default resource name,

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00:03:29,389 --> 00:03:32,969
it gives us the value directly
from the hard coded string and

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00:03:32,969 --> 00:03:37,929
we're gonna leave the source set alone as
main and the file name as strings.xml.

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00:03:37,929 --> 00:03:40,689
And you can see it's going to
create it in the values directory,

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00:03:40,689 --> 00:03:42,541
just like we already have it, so click OK.

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00:03:42,541 --> 00:03:43,650
It replaces it here.

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00:03:43,650 --> 00:03:48,110
This is how we access it in XML,
@string/ and then the string name.

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00:03:48,110 --> 00:03:49,780
And then if we go to strings.xml,

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we can see we have a new
extracted string resource, cool.

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00:03:53,650 --> 00:03:56,860
So as a challenge for you, go through
the rest of your layout files, and

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00:03:56,860 --> 00:04:00,630
extract all the other warnings
into new string resources.

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00:04:00,630 --> 00:04:02,890
Okay so
we're off to a great start with this app.

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00:04:02,890 --> 00:04:04,700
We've introduced multiple activities, and

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00:04:04,700 --> 00:04:07,884
now we know how to pass data from
one to another using an intent.

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00:04:07,884 --> 00:04:11,404
Next step we will build the story part of
our app following a really common software

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00:04:11,404 --> 00:04:15,874
design pattern, known as
Model View Presenter or MVP for short.

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00:04:15,874 --> 00:04:18,054
It's pretty awesome, so
make sure you're ready for

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00:04:18,054 --> 00:04:19,834
the fun before going on the next section.