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(electronic music)

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All right, so we've written the code now

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to save the task details, let's see if it works.

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We still haven't got the code to display the tasks yet,

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but we're studying that in the next video.

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But we can check the Logcat to make sure

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our data has been saved.

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If you wanna check the database,

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which I'll be doing in a moment,

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make sure you're not using

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one of the emulators with Google Play.

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They don't provide the permissions we need

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in order to open the database on the device.

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So what I'm going to do,

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because I installed a Google Play version

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of the emulator API 28,

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I'm going to go ahead and create a new one.

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Before I do that, though,

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I'm going to edit the one we created.

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I'll just change the name just to make it clear that

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this is the Play version, Google Play version.

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And I'm gonna create a new virtual device,

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Nexus 5X again.

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This time, we don't want the Google Play version.

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I just gonna click x86 Images,

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I'm gonna go for the Google API version,

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or, of course, we can access the database,

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and I'm gonna use API Level 28 again.

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I'm gonna call this one API, just so it's clear to me

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that we're using the Google API version.

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All right, so now that we've got that created,

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I'm going to just start it.

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And I'll close down this Virtual Devices dialogue.

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Now obviously, because this is a brand new emulator,

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I won't open in the apps installed.

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So if you've already created an emulator,

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your probably want to uninstall the app from your emulator

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to make sure there's no existing data in there,

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because we're gonna run this version of the app

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and enter some data as we go through.

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But again, I just created an emulator,

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so I won't need to test for that.

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So I'm gonna make this a bit bigger.

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This over to the right.

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I'm gonna run this,

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just by pressing Start.

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All right, so I don't need to uninstall

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the app from my emulator

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to make sure there's no existing data,

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and that's because you just saw me

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create a new emulator.

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If you're running an existing emulator,

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then uninstall the app to remove all the data.

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And in turn, what I'm going to be using here

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for adding new data, which we want to test,

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I'm gonna be really boring in my choice of tasks names,

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but there's a good reason for it.

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We'll see that is

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when we come to respond to tabs

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on the items a bit later.

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For now, though, once the app's running,

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make sure that Logcat's visible.

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So I'm gonna go back and click on Logcat.

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And notice that I'm still in floating mode

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from the previous video,

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so I'll leave that in that mode.

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I have noticed, though,

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that Logcat now behaves a bit differently

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with this release of Android Studio.

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Over in the filter box over here to the right,

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it often resets to No Filters.

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If I click this now,

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the option to show any selected application,

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which is the one we want here,

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is also unavailable sometimes,

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and you can see, at the moment, it's not showing.

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It seems to be a bug, and if that happens,

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use the second drop-down from left over here

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to choose your application again,

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and I think that it is actually chosen,

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but I'll click on that again anyway.

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And if I come back over here,

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the option to show any selected application,

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which is the one we want, is now there.

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I can click on that, and we get to suggest our code.

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And once, I'm gonna take the opportunity to remove

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what we put in there before to the filter.

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So we see everything for this app.

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All right, so loading up our emulator again,

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released, bring it back on screen.

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Let's get started, so I'm gonna click on the plus,

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the screen to add data screen appears, no surprises here,

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and we call all the tasks Task with a number,

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starting with the Task1.

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Doesn't really matter what we use for the description,

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so I'm just gonna enter first task, second task, and so on.

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And next, what I'll do, also is, before I do that,

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I'm gonna go back into Logcat,

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and I'll just put Saving as a comment,

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so we know where the log started.

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All right, so let's start.

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The first one, Task1.

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Task description is gonna be first task,

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and I'll leave the order or blank for that one.

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Click on Save.

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All right, and when I clicked Save,

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you saw that the events were being logged.

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And I go back over and have a look at that.

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This is the first time

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that we've accessed the content provider

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after installing the app,

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and we can see the table creation being logged there.

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So that's followed by the insert method exiting

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with the URI that it returns,

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you can see that up there, you can just scroll over,

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and we can see it's task slash one.

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The URL contains an ID, so that's a good sign.

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We wouldn't have an ID

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if SQLite hadn't added the record to the database.

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So let's go ahead and add another task now.

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I'll call this one, not surprisingly, Task2,

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second task for the description.

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The sort order, this time, we'll add a sort order five,

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and save.

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If I scroll down, we can see that

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we're still getting things updated, and we're confirming

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that the data's been saved, that's good,

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and we can just scroll over and see

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we've got tasks, too, they're showing,

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so that's a good sign so far.

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Now, back to our app again.

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There's another entry, this time, Task3,

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description's gonna be third task,

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and I'm going to enter the largest possible number

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for the sort order, so that's nine nines.

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One, two, three, four, five,

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six, seven, eight, nine.

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It won't let me top any more than that now,

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actually, if I try anyway.

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So that's also working fine.

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I'll save that into the fourth task,

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Task4, fourth task,

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and I'll leave all the remaining sort orders blank.

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So I'm gonna save that, back again to Task5,

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fifth task, sort order blank as I mentioned,

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and click on Save.

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All right, that's enough records.

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And we don't have to just trust

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the Logcat entries here, by the way.

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We can check the records using SQLite 3.

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So to do that, we go back to,

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actually, what I'll do is

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I'll close down the Logcat for now.

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Go back to open the Terminal.

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I'm going to type adb devices.

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I'm gonna type adb space dash s

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space emulator dash whatever the number is,

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in my case, 5554, shell.

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Type su to switch into superuser mode.

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And it's at this point that you might struggle

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if you're using a real phone instead of an emulator.

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And if that's the case,

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you can't really check your database,

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as you just have to trust the Logcat

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until we display the records in the app

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a little bit later, whereas our database

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in the slash data slash data directory,

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in a subdirectory that's the same name as our package.

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So in my case, I can check with cd slash data

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slash data slash, I can type in learn,

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press Tab, that gives me the rest of the package name,

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and then, I go into a subfolder

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called databases, and press Enter.

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And I can type sqlite3 TaskTimer,

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capital T for Task, capital T for Timer, dot db.

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And we'll select star from tasks.

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And you can see that we've got our records showing.

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So our code is adding your records

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to the SQLite database, which is fantastic.

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All right, so before I stop the video,

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I'll close down the terminal

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by typing exit to leave the SQLite show,

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exit to quit superuser mode,

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and exit once more to exit from id,

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and exit to close down terminal.

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All right, so in the next video,

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we'll look at creating the adaptor what we'll need

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to populate the recycler view

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with the task records that we've saved.

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See you in the next video.