Changing the size and position of widgets according to window size in Kivy
Question:
I’ve been recently trying to use the library Kivy to make applications that will go onto different devices. Each app is known to resize their elements on-screen according to window size and elements having the same definitions. Since I’m pretty new to the world of Kivy, I was wondering how such a thing can be done.
For example:
This is a resolution of 1000×750
and this is the resolution of 500×350
Notice how the text resizes with the image.
Anything would be greatly appreciated, thanks!
Answers:
In kivy most of widgets have an argument called size_hint which as the name suggests sets size of widget according to screen size. It takes value from 0 to 1. A value of 0.5 basically means half of screen. You can use size_hint_x and size_hint_y to define size along x and y axis or together you can use size_hint = (0.5,0.5). Also, if in some cases when you couldn’t use size_hint then you can you Window.size to get the screen size of the device as a tuple. Assume you want to make something with size 50% of both x and y. Then you can set size = (Window.size[0]*0.5, Windows.size[1]*0.5) Window.size[0] is basically length along x-axis and Window.size[1] along y axis
It is very simple,when inserting the size of your widget in the kv file,u will need to divide it by 2 or any number depending on the size you want your widget to be.
Example
Button:
text:"example"
Size_hint:self.width/2,self.height/2
Pos_hint:self.width/2,self.height/2
With the Pos divided by 2, it set the widget to the center and with size_hint = to the size of the window divided by 2 or any number.the size of the widget can be changed due to the change in the window.
It also works for font_size.
I’ve been recently trying to use the library Kivy to make applications that will go onto different devices. Each app is known to resize their elements on-screen according to window size and elements having the same definitions. Since I’m pretty new to the world of Kivy, I was wondering how such a thing can be done.
For example:
This is a resolution of 1000×750
and this is the resolution of 500×350
Notice how the text resizes with the image.
Anything would be greatly appreciated, thanks!
In kivy most of widgets have an argument called size_hint which as the name suggests sets size of widget according to screen size. It takes value from 0 to 1. A value of 0.5 basically means half of screen. You can use size_hint_x and size_hint_y to define size along x and y axis or together you can use size_hint = (0.5,0.5). Also, if in some cases when you couldn’t use size_hint then you can you Window.size to get the screen size of the device as a tuple. Assume you want to make something with size 50% of both x and y. Then you can set size = (Window.size[0]*0.5, Windows.size[1]*0.5) Window.size[0] is basically length along x-axis and Window.size[1] along y axis
It is very simple,when inserting the size of your widget in the kv file,u will need to divide it by 2 or any number depending on the size you want your widget to be.
Example
Button:
text:"example"
Size_hint:self.width/2,self.height/2
Pos_hint:self.width/2,self.height/2
With the Pos divided by 2, it set the widget to the center and with size_hint = to the size of the window divided by 2 or any number.the size of the widget can be changed due to the change in the window.
It also works for font_size.