Add slider control

[jingtang10]

See http://hl7.org/fhir/R4/valueset-questionnaire-item-control.html for slider

[AliAkberAakash]

Hi, I'd like to contribute to this issue. Where do I have to add the slider?

[jingtang10]

Hi Ali - thanks for your interest. Please refer to PR #191 where I added a radio button control. To add a new slider control you will do something very similar.

A few important things you'll need to do

• create a new layout file for the slider widget
• create a new factory class that will use the layout file to create the view holder
• change the QuestionnaireItemAdapter.kt file so that it uses the new factory for numbers
• add tests

please take a look at that PR and let me know if you have questions.

[jingtang10]

Ali - may I ask you to download the repo and try to build the datacapturegallery module first. Once you've done that and you're clear what to do I can grant write access.

[jingtang10]

An example can be found here: http://build.fhir.org/ig/HL7/sdc/examples.html#using-sliderstepvalue

[s-ayush2903]

This has been solved in #287, Issue can be closed.

[jingtang10]

Thanks @s-ayush2903!