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Editorial Team
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Asked: 2026-06-11T13:25:27+00:00

I have a working JQM application that I’d like to display some images in.

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I have a working JQM application that I’d like to display some images in. The images currently are in their own iframe so they can be scrolled separately from the app.

I’d like to be able to pinch zoom only the images within the iframe as well.

I realize if I adjust the following code snippet that I can enable pinch zoom but this enabled it for the entire application. 

<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no;" />

By removing maximum-scale pinch zoom returns but for everything.

Is there a way to enable pinch zoom only for an image? How about adding a new viewport tag to the iframe, would that work if that is even possible?

UPDATE

  • Injected HTML into the iframe. Added the meta tag, this did not help.

  • Tried .extend($.mobile.zoom, {locked:false,enabled:true}); on the iframe body, this did nothing.

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1 Answer

  1. Editorial Team

    It turns out the best way to do this is to use the ChildBrowser plugin. This on IOS and Android works perfect for images.

    IOS Childbrowser:

     https://github.com/purplecabbage/phonegap-plugins/tree/master/iPhone/ChildBrowser

    Android ChildBrowser:

     https://github.com/phonegap/phonegap-plugins/tree/master/Android/ChildBrowser

    Then once you have done all the setup you can open URL’s or local files like this:

     window.plugins.childBrowser.onLocationChange(location);

    Do note that in a fully cross platform setup between IOS and Android they both need different versions of the plugin. IOS requires ChildBrowser init in onDeviceReady, Android does not.

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