Need help on MATLAB GUI button

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Khang Nguyen 2020-12-3

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回答： Monisha Nalluru 2020-12-8

Hello,

I am currently making a GUI that allow the user to click a button and a picture appear. Everytime the user clicks it, a new image will replace the old one. The problem is that I want to keep the old images while having the newer ones on the either the left ot right of the olds. Like a photo strip. This question is part of a major project I decided to work on, so any help is appreciated.

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Khang Nguyen 2020-12-3

I already have an app going. I already understand how to implement images onto GUI using button. The problem is that I can't figure out how to keep the old image whenever I click the button. I searched up and couldn't find anything, so I hope that the community can help me or at least give me a lead.

Kartik Hegde 2020-12-3

Try using multiple grids for old and new images

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Answer 1

Monisha Nalluru 2020-12-8

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在 MATLAB Online 中打开

Hi Khang,

If you are using App Designer, I would suggest create properties within app which will store

list of all image file names which you want to display in your app
a counter which track which image your are displaying currently

properties (Access = private)  % can be public or private depending on use
        imagecounter= 1;
        imagelist=['newimage.png','newimg2.jpg'] % give list of all image you want to display
end

Documentation inorder to create properties in App Designer

Then write a callback function to button which will display the current image using imagecounter value and previous image using imagecounter-1. Handle case when imagecounter=1 since no previous image exists and results error

As an example

app.Image2.ImageSource=app.imagelist(app.imagecount);  % Image2 is current image
app.Image1.ImageSource=app.imagelist(app.imagecount+1); % Image1 is previous image

Hope this helps!