Category Archives: Kivy horizontal layout

Kivy horizontal layout

As I understand it, Kivy is kind of a spiritual successor to pyMTwhich you can read more about here. In this article, we will be learning how Kivy handles layout management. In Kivy, these things Layouts.

I should also note that Kivy can do layouts in two different ways. The first way is to do Layouts with Python code only. The second way is to use a mixture of Python and Kv language. This is to promote the model-view-controller way of doing things. We will look at how to use both methods in this article.

While Kivy supports multiple types of Layouts, this article will be focusing only on the BoxLayout. We will show how to nest BoxLayouts. Creating a BoxLayout in Kivy using Python is actually pretty easy and quite intuitive.

Here we have created a vertically oriented BoxLayout class and a horizontally oriented BoxLayout class. Each class contains 5 buttons with random background colors.

The colors follow RGBA, but can have individual values that are between zero and one. Oddly enough, if you use numbers greater than one, the color becomes brighter. Because BoxLayout is a sub-class of Layout and Widget, it inherits many other methods and keyword arguments that are not covered here.

Pericolosamente

But back to the arguments we currently care about. The padding argument tells Kivy how much space there should be between the Layout and its children, whereas the spacing arguments tells it how much spacing there should be between the children.

To create the buttons, we use a simple loop that loops over a small range of numbers. Each iteration creates a button with a random background color and adds that button to the Layout instance. Then we return the layout at the end. The vertical BoxLayout example in the VBoxLayoutExample class is slightly different in that I thought it would be fun to be able to set the orientation programmatically.

The code is pretty much the same except that I added a setOrientation method.

kivy horizontal layout

Note that if you call setOrientation again, it will have no effect. As one of my commenters so kindly pointed out, you would need to bind the orientation to the App orient property or use the Kv language to achieve this. If you comment out the call to HBoxLayoutExample at the end of the script and un-comment out the other two lines, then you should end up seeing something like this:.

Python | Layouts in layouts (Multiple Layouts) in Kivy

Kivy does not try to look like a native application. Nesting BoxLayouts inside of each other is pretty easy with Kivy too. Whenever you go to create an application with a complicated interface that will need nested sizers, you should take some time to sketch the layout out with pencil and paper.

By the way, BoxLayouts are very powerful. This example is very similar to the last one. The devil is in the details though. Here we have a nested for loop that creates 3 BoxLayouts that contain 5 buttons a piece.

How to Use BoxLayout

Each Layout is then inserted into the top level Layout at the end of each iteration in the outside loop. In case you missed it, scroll back up to see how it turned out. The trick is to create one top-level or main Layout and add other Layouts to it. You may want to spend a few minutes reading about the Kv language on the Kivy website. First of all, we create an empty sub-class of BoxLayout.GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together.

Usually a user interface has many components widgets that should be displayed properly, if not beautifully, to have a good user experience. Controlling the size and position of all widgets in a user interface that may change its size, location, orientation and react promptly to a user interaction is a complex task.

Kivy provides several layout widgets to automate many layout management tasks. The following layoutdemo. All buttons have the same size and aligned properly. All buttons are 10px padding away from the window.

The user interface is shown in the following diagram.

Kivy Tutorial #4 - The kv Design Language (.kv file tutorial)

Without any calculation of the size and position, we have something that work out of the box. More importantly, if we resize the window, all buttons change their size and positions correspondingly to keep the grid view with the same spacing and padding settings. The Kivy document page has more information and animated picture of the first five layouts.

A good news is that the BoxLayout is simple and good enough for many tasks. When multiple BoxLayout are combined and nested, it is flexible in placing widgets in the right position with the right size. We will use BoxLayout in most examples. When a BoxLayout is used to manage a user interface layout, the widget placement is easy to understand: in default, a box layout places one child next to each other, either vertically from top to bottom or horizontally from left to right.

In the above example application in. The root widget is a BoxLayout widget that has two BoxLayout widgets as its children. The root widget use a vertical orientation that places the two nested box layouts from the top to the bottom. In the nested box layouts, we don't specify the orientation property. They use the default "horizontal" orientation to place child widgets from the left to the right.

In addition to the orientation property, the BoxLayout has a padding property and a spacing property. The padding specifies property the padding between a box layout widget and its inside children.

Though grid layout or other layouts can also be used to put the buttons in a 2 by 2 grid, generally we like the box layout for its simplicity, fine control and flexibility. There are two types of size in Kivy: absolute size and size hint. The absolute size is easy to understand because it use a numeric value and a metrics unit to declare the size.Kivy is a platform independent GUI tool in Python. It is basically used to develop the Android application, but it does not mean that it can not be used on Desktops applications.

In this article, we are going to discuss how we can use layouts in layouts basically multiple Layouts the most basic example of it. Most of the time we are able to use one layout but having difficulty to use multiple layouts. Note: If you were using. But if doing this without. Image If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.

kivy horizontal layout

See your article appearing on the GeeksforGeeks main page and help other Geeks. Please Improve this article if you find anything incorrect by clicking on the "Improve Article" button below. Writing code in comment? Please use ide. Sample Python application demonstrating the. Program of How to use Multiple Layouts in Single file. BoxLayout arranges children in a vertical or horizontal box.

The GridLayout arranges children in a matrix. It takes the available space and. The PageLayout class is used to create. Program of How to use Multiple Layouts in Single. Creating Page 1. Using BoxLayout inside PageLayout. Providing orentation to the BoxLayout. Adding Lable to Page 1.

Creating Button. Creating Page 2.By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.

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Change your preferences any time. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. I planned to have multiple VBoxWidget in a vertical way but it's just not working out.

Moreover to achieve the [9] LabelI thought I will have a BoxLayout with 2 rows, in horizontal, 2nd row will have the above mentioned properties. But this is just not working out. Below is what am getting. It looks quite like on your drawing.

Kivy 101: How to Use BoxLayouts

The way I managed those 4 labels is not really correct way. I will give you hint how to solve it more correctly. On BoxLayout, widgets organize themself automaticly - horizontaly or verticaly and they scale based on how much space belongs to them.

With FloatLayout, there is no restriction so you can position labels as you wish.

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In general, if you have changing resolution, its better to solve it with BoxLayouts. If you want more freedom, use FloatLayout, but you will have to manage widget scaling and positioning by yourself. Learn more. Asked 1 year, 2 months ago. Active 1 year, 2 months ago. Viewed times. Am trying to have 4 Horizontal box layout stacked in a BoxLayout in a vertical way.By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.

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I am having difficulty recreating this as I do not understand the layout system and I have read a lot of documentation, watched a lot of Youtube videos, tinkered with the code and still I cannot get the desired result.

kivy horizontal layout

I cannot position the dropdown menu with the 'select your recipe' label how I would like it. I have tried altering it's y-axis multiple times but it always sinks to the botton of the boxlayout. I even tried giving it a new boxlayout just for the dropdown and tried doing: pos: self. I am wondering whether it would be better to just use a floatlayout and manually position all the widgets but I am unsure how this will work well when I compile it into an APK for an Android device.

What is the best way to go about positioning my widgets on the screen? Learn more. How do I position widgets and use layouts in Kivy? Ask Question. Asked 3 years, 1 month ago. Active 3 years ago. Viewed 4k times. WewLad WewLad 1 1 gold badge 4 4 silver badges 18 18 bronze badges. Active Oldest Votes. Thanks for this. Do you know how I would center a widget within a boxlayout with other widgets in the same horizontal boxlayout? WewLad yea that was basically it. I updated with your recipe button as example.

Thanks for this although I was wondering. Is it also possible to specify 'left':1 or 'right':1' aswell as 'top':1 so it's top-left and top-right? Sorry I worded that poorly.

kivy horizontal layout

What I mean is, can you combine say Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown.GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together. Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Already on GitHub? Sign in to your account. I can't seem to get horizontal scrolling to work. Vertical is fine and if I force the bars to show or resize the window I can see that the child pane is bigger, but it won't scroll left and right. This appears to be similar to the closed ticketbut that was from two years ago.

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We accept bounties via Bountysource. Could you please pull the latest 1. Is there a build for 1. Pygame's build package doesn't work with OS X's default python, so to repro this under 1. I'm hoping to avoid that if I can.

To answer your question, the scrolling I'm attempting that isn't working is doing a two fingered swipe on my MacBook. I guess that qualifies as touchpad scrolling? I noticed when retesting it that when I attempt the scroll the horizontal bar does appear as if it is about to work, but just stays glued to the left hand side. For OSX, you should download the portable package and update it to the dev version - instructions are here. And yes, that is touchpad scrolling which is the same as mouse wheel scrolling.

Given that the bar is displaying, you should make sure to check scrolling in both directions, in case the direction is just reversed. Wow, I can't believe it has been a month since you got back to me on this. I haven't been doing much work in kivy and "I'll test it tomorrow" sort of caught up with me. I just did a "git pull" top commit was eca95cf and tested this again. I'm seeing the same problem. Scrolling left or right causes the scroll-y bar to momentarily show up but the scrolling doesn't happen.

Up and down still work fine. I'm not sure what to tell you. I just re-checked with both the 1. Both versions worked for me -- they still have the scroll problem, but the program launched fine.

I did a quick visual check of the code above and it looks the same to my test files. Github won't let me post text as attachments. Is there somewhere I can send the files to ensure there isn't some sort of copy-paste problem?

This issue has been automatically marked as stale because it has not had recent activity.Kivy is a platform independent GUI tool in Python.

It is basically used to develop the Android application, but it does not mean that it can not be used on Desktops applications. It is quite confusing to understand the difference between Stack and Boxlayout.

StackLayout can organize widgets with more complexity than BoxLayout Boxlayout can organize widgets either in a vertical or horizontal way. But with the StackLayoutyou can combine the orientations. There are 4 row-wise and 4 column wise orientations. First the widgets are added left-to-right and then top-to-bottom. Note: If want to change orientation, just change the orientation in line no 31 with any of the below orientations —. If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.

See your article appearing on the GeeksforGeeks main page and help other Geeks. Please Improve this article if you find anything incorrect by clicking on the "Improve Article" button below. Writing code in comment? Please use ide. The StackLayout arranges children vertically.

Different orientation. Creating Multiple Buttons. Check out this Author's contributed articles. Improved By : ManasChhabra2. Load Comments.