Name: ボタンとイベント - KivyのPythonを使ったモバイル・デスクトップアプリ開発 (Buttons & Events - Kivy Mobile and Desktop App Dev w/ Python)
Uploaded: 2021-01-14T10:36:17.000Z
Duration: 11 min 47 s
Description: VoiceTubeの動画で発音を聞きながら英語表現を覚えよう！学べる英語：

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And welcome to part two of the key V cross platform Kuby development tutorial Siri's this video are gonna be doing is continue along.

We're trying to make this chat application, and the first thing we need to be able to do is fill out that form and then, like, submit the form right.

So we need a button to click, probably says Join or something like that.

And then besides just throwing in the button, we also need to handle for the event when that button is clicked.

So that's what we'll be doing today is buttons, events and just a quality of life.

So we've got these, uh, these things all added already.

Now the first thing that we're gonna do is throw in a button.

So we're gonna say from key v dot Your i s stop but in We're going to import button.

So again all the widgets are placed in order, so we can just like throwing a button.

So we could say self dot Join equals button.

And then we could say that tax here is joined.

And then we could say self that add a widget itself dot joint clips Don't run it there.

I kind of went off screen, but anyway, here you go I p ports user name.

Doesn't do anything when we click it, though Now I kind of want to join button over here.

There's like, there's a 1,000,000 things that we could do to get this button to be moved and to place things specifically especially, People start getting fancy with layouts and silently outs.

And, you know, you could get really cool with this.

You could just have, like, a grid layout for Rome or for Rose.

And then each row is its own two column layout.

And then bang, bang, bang, bang, and then join Could be the whole thing down here, right?

Yeah, you could just self doubt add widgets.

So we're adding that before we add the widget of the button and boom, we got the button oriented over to the right.

But like I said, if you want to fix it and do it a different way, have at it.

So that's buttons, Okay, but obviously we want these buttons to do stuff when they're clip.

So what we want to do is bind a function to the budget.

So what we're gonna say is self dot join dot bind.

That's just AnAnd tribute, basically, or a method of these things button that we can run, and then we're gonna bind.

But I would wager maybe if you hovered over maybe on on hold or something you might have Ah, thing I don't know.

Anyway, there's probably methods like that.

Eso check those out in the a p I documentation on press.

But it seems to make sense, right, So we're gonna run a method called Joined Button.

Now that method doesn't quite yet exist, so we better probably make it.

So what we're gonna do is define And just so it's clear we're in the class connect page.

And when you click on the button, it's also going to pass or when you bind, I don't know.

Instance we're gonna handle for that so we can also taken instance.

So here, we're gonna get weaken, grab really whatever we want, right, because if someone's filled out these forms like it's a it's a live instance, right?

So as people are putting text inside of these fields, we can actually grab that, uh and then do something with it.

So not only so just like later on down the road, we're gonna talk about scheduling things and just running things.

So just understand that everything's running like live as you put things in.

It just so happens that we're like scheduling things, and it seems very script e as we click buttons or whatever, but it doesn't have to be like that, so just keep that in mind.

But anyway, so this event here, we're running the event.

Now it's just grab some stuff real quick.

We're just going to say port equals self, self doubt, port, not text.

We're in a I p equal self that I peed a text and then user name equals self die user name dot text.

So we're just grabbing the text values of those fields at the time of the button press.

But again, like I said, you could grab values of fields at any point.

You can have all kinds of reasons why you might grab that stuff.

So anyway, port i p using an infant out, let's just say print f uh, actually, let's say attempting to join I P colon ports and user name.

So I p Let's just I'm just gonna throw in some stuff really quick and talk about that hit.

So we're attempting to join, um this Colin, this as this, we'll both 1234 Oh.

Oh, have a hot Maybe, I don't know, something hinky going on there.

Um, so one thing right of the gate, it's very tedious to keep filling out the i p the port.

The user name is over, and I keep going to the same one every single time.

So So both in development and then in actually use case, we probably actually just want to, like, save these things.

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ボタンとイベント - KivyのPythonを使ったモバイル・デスクトップアプリ開発 (Buttons & Events - Kivy Mobile and Desktop App Dev w/ Python)

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