How can I code "Execute during preview" capability in custom snap? (i.e. testing validation mode vs. run-time mode)

[del]

I have a snap, that I have developed, for which I would like to add the “Execute during preview” capability.

Can anyone provide me with java code capable of accomplishing this? I do not need the code to create the UI feature, property or variable. I just need the code to determine whether the execution process is in the validation or run-time mode.

TIA,
– Del

[ptaylor]

Hi JiWon,

I’m not sure exactly what you’re asking. If you want to know how to define a checkbox property in a custom snap, you’d have code something like this in your defineProperties method:

    propertyBuilder.describe("name", "label", "description")
            .type(SnapType.BOOLEAN)
            .defaultValue(true)
            .add();

[JiWon]

Thanks ptaylor 🙂

[del]

Hi @JiWon,

The solution for me was Robin’s response above. I’ve highlighted the necessary code here (in context):