app designer Slider object properties does not contain a 'SliderStep' property

Question

Andy 2017-11-17

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/367663-app-designer-slider-object-properties-does-not-contain-a-sliderstep-property

评论： Chanchal Dass 2021-9-14

采纳的回答： Greg

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Hello Team,

As of 2017b, an app designer slider object has following properties:

Show all properties

           BeingDeleted: 'off'
             BusyAction: 'queue'
              CreateFcn: ''
              DeleteFcn: ''
                 Enable: 'on'
              FontAngle: 'normal'
              FontColor: [0 0 0]
               FontName: 'Helvetica'
               FontSize: 12
             FontWeight: 'normal'
       HandleVisibility: 'on'
          InnerPosition: [29 640 207 3]
          Interruptible: 'on'
                 Limits: [1 10]
        MajorTickLabels: {'1'  '2'  '3'  '4'  '5'  '6'  '7'  '8'  '9'  '10'}
    MajorTickLabelsMode: 'auto'
             MajorTicks: [1 2 3 4 5 6 7 8 9 10]
         MajorTicksMode: 'manual'
             MinorTicks: [1 2 3 4 5 6 7 8 9 10]
         MinorTicksMode: 'manual'
            Orientation: 'horizontal'
          OuterPosition: [23 610 221 39]
                 Parent: [1×1 Figure]
               Position: [29 640 207 3]
                    Tag: ''
                   Type: 'uislider'
               UserData: []
                  Value: 3.8261
        ValueChangedFcn: [function_handle]
       ValueChangingFcn: ''
                Visible: 'on'

'SliderStep' is not one of them.

How do you enforce a slider step to be a specific value?

Thanks

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Olivier Camus 2017-12-8

Personally, I have created a slider to look at different images in a multipage image file. To make sure the slider increments only on integer values I have in my callback function: newValue = round(slider.Value) %variable slider.Value = newValue The second line allows for the slider to update to this rounded value. Hope this helps.

Pranaya Kansakar 2020-4-28

Hi Oliver

Would you mind sharing the code for your slider? I'm trying to do something similar but am having difficulty doing so.

Thanks!

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Answer 1

Greg 2017-12-2

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链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/367663-app-designer-slider-object-properties-does-not-contain-a-sliderstep-property#answer_294235

There is no need for a SliderStep property anymore. The old slider had arrows for "small step" and click inside but not on the "thumb" for "large step." The new slider automatically jumps to the clicked location, or can be click-and-dragged.

If you are trying to make it a discrete slider, use the ValueChangedFcn or ValueChangingFcn to validate the slider's value. Or use a discrete knob.