Changing slider limit in gui

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Pranaya Kansakar
Pranaya Kansakar 2020-5-5
编辑： Pranaya Kansakar 2020-5-5
is there anyway i could get the slider to update the limit to the image count Ct?
It seems that the app.Slider.Limits only accepts numerical values - at the moment it is set at 2. How can in incorperate the .Count function into the slider limit so the limit automatically updates with the value of .Count should i decide to import another file with a different .Count value?
How can I add a listener function here also?
Imported imageSet code
% Button pushed function: LoadImageButton
function LoadImageButtonPushed(app, event)
global Ct
imgSetVector = imageSet(uigetdir(''),'recursive');
Z = read(imgSetVector,1);
Ct = imgSetVector.Count;
imshow(Z,'Parent',app.UIAxes)
Slider Code
app.Slider = uislider(app.UIFigure);
app.Slider.Limits = [1 2]; **
app.Slider.MajorTicks = [];
app.Slider.MajorTickLabels = {''};
app.Slider.ValueChangedFcn = createCallbackFcn(app, @SliderValueChanged, true);
app.Slider.MinorTicks = [];
app.Slider.Position = [296 36 321 3];
app.Slider.Value = 1;
Thanks!

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采纳的回答

Ameer Hamza
Ameer Hamza 2020-5-5
Try to set the slider limit after this line
Ct = imgSetVector.Count;
app.Slider.Limits(2) = Ct;
  11 个评论
显示 9更早的评论
Ameer Hamza
Ameer Hamza 2020-5-5
The valueChanging callback for uislider does not require lifting the mouse button. Read here: https://www.mathworks.com/help/releases/R2020a/matlab/ref/uislider.html#buicpgg-1_sep_shared-ValueChangingFcn.
Why are you creating the app in a script? Isn't it easier to use the app-designer?
Pranaya Kansakar
Pranaya Kansakar 2020-5-5
编辑：Pranaya Kansakar 2020-5-5
I didn't realise that you could use the code in app-designer as well.
I've implemented it in app-designer and it works great!
Thanks!
I guess this was a trivial issue.
I attach my interpretation of the app if anyone else in the future stumbles across the same problem.
*it's laggy...

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