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Ang111
Known Participant
Mar 30, 2021 9:13 PM UTC
Question

Hide/Show fields not working on mobile devices

Hi

I have aline of code that works no problem on desktop. In custom keystroke script:

this.getField("Supply_App.3").display = (event.value=="None") ? display.hidden : display.visible;

 

This doens't work on a mobile device -I'm testing on an iPad with Acrobate Reader for iOS. I've read I shoudl replace the ? with an if statement but I'm struggling to get it to work correctly without adding an additoanl vaidation field - which I'd rather not do. Any advice?

TIA

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5 replies

Thom Parker
Community Expert
Thom ParkerCommunity Expert
Community Expert
Mar 30, 2021 9:48 PM UTC

Try using PDF Expert on the IPad.  Strangely it has a much better Acrobat JS implementation than Mobile Acrobat. 

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Thom Parker - Software Developer at PDFScriptingUse the Acrobat JavaScript Reference early and often
    try67
    Community Expert
    try67Community Expert
    Community Expert
    Mar 30, 2021 9:21 PM UTC

    I don't think it will make much of a difference, but you can give it a try:

     

    if (event.value=="None") this.getField("Supply_App.3").display =  display.hidden;

    else this.getField("Supply_App.3").display =  display.visible;

     

    I would recommend trying it in PDF Expert by Readdle, which currently has the best support for scripts out of all mobile PDF apps.

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      Ang111Author
      Known Participant
      Mar 30, 2021 10:51 PM UTC

      Thank you. As you thought, the code didn't help on ipad but PDF Expert works well so thank you! On a slightly seperate note, do you know how I can find out why my pdf keeps crashing? Only crashes on a laptop adn when I tab out of a specific field. I've deleted the field and added it back in but still have the same problem. I have opened another thread for that issue but thougth I'd try my luck here too 🙂  Thanks again

       

       

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      Thom Parker
      Community Expert
      Thom ParkerCommunity Expert
      Community Expert
      Mar 31, 2021 12:54 AM UTC

      Look in the Console window for any reported errors, Ctrl-J

       

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      Thom Parker - Software Developer at PDFScriptingUse the Acrobat JavaScript Reference early and often
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