Question Problem with aspect ratios?

I am building a 2D game. It is very good looking in 320 * 480 resolution.

Screenshot = https://prnt.sc/uv8zdq

But when I change to different aspect ratio my game screen get cutted from side and also gap gets added from top and down according to aspect ratio I choose.

Screenshot = https://prnt.sc/uv946d

How to make the canvas content and game content automatically resize according to screen size?

 

Your Canvas is already resizing.

The cuts on the side aren't pieces being taken out of the screen, they are showing where the boundaries of the screen are. You can't draw to those areas because they physically do not exist on the device that you are simulating. And the empty space at the top and bottom is there because your content has to become smaller in order to fit on a narrower screen.

 

How to fix this?

 

What you have right now is what most people would consider "fixed" already. What is it that you want instead?

You could probably make your content stretch to fill the available aspect ratio, but then it will look distorted.

You could make your content size to the larger screen dimension instead of the smaller one, but then it will be cut off by the edge of the screen, so you won't be able to see the whole thing.

You could make your game refuse to run at all on devices with aspect ratios that aren't close to your preferred one.