CODEWITHSUNDEEP
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Reputation: 161

Unable to change image size

I am using an image inside a BoxLayout of which size_hint_y is set to None And the images seems to have no response to any attempt to change the size, And i suspect that the issue arises only on using size_hint_y:None

It works fine if i remove the size_hint_y parameter, but doing so will affect the other widgets positioning , so how can i do this without avoiding the size_hint_y:None Parameter

Code

from kivy.app import App
from kivy.lang import Builder

Kv=("""

BoxLayout:
    orientation:'vertical'
    size_hint_y:None
    height:self.minimum_height 
    spacing:5
    
    BoxLayout:
        orientation:'vertical' 
        size_hint_y:None
        height:self.minimum_height     
        spacing:20            
        
        Image:
                 
            size_hint:None,None
            source:"/storage/3666-3432/Download/Lion.jpg"                       

      

""")

class MyApp(App):
    def build(self):
        return Builder.load_string(Kv)
        
MyApp().run()

Edit

from kivy.app import App
from kivy.lang import Builder

Kv=("""


ScrollView:
    BoxLayout:
        orientation:'vertical'
        size_hint_y:None
        height:self.minimum_height 
        spacing:5
    
        BoxLayout:
            orientation:'vertical' 
            size_hint_y:None
            height:self.minimum_height     
            spacing:20            
        
            Image:
                height:2000
                size_hint:None,None
                source:"/storage/3666-3432/Download/Lion.jpg"                       

      

""")

class MyApp(App):
    def build(self):
        return Builder.load_string(Kv)
        
MyApp().run()

In the above code you can see that when the height parameter is used, the image size dosen't change and rather a huge space is being created at the either sides of the imageenter image description here

Upvotes: 0

Views: 149

Answers (1)

John Anderson
John Anderson

Reputation: 38857

You are setting the Image height to 2000, and so the Image widget will have a height of 2000. The width of the Image will be the default value of 100 because you are not setting that value and size_hint_x is None for the Image. However, by default, the Image widget has allow_stretch of False and keep_ratio of True, so the texture will be 100 wide and an appropriately ratioed height (not 2000).

I'm not entirely sure what you are attempting to accomplish, but if you want the Image to stretch, you should add allow_stretch: True to the Image and either add a width for the Image, or change size_hint:None,None to size_hint:1,None.

Upvotes: 1

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