Tag: interactivity

A workaround for the lack of trigger animations in Keynote

One Powerpoint feature that Keynote does not yet have is animation triggers. In Powerpoint, you can set an animation to be triggered when a particular object elsewhere on the slide is clicked. This can be used to create interactivity for web-based elearning, or perhaps for presentations where there is some interaction from the audience and the exact sequence of clicks is not figured out in advance.

A workaround to create a trigger effect is to make the triggers into hyperlinks that link to slides that look identical to the slide containing the trigger, but which contain the response animation. For each trigger, there will be a corresponding animation slide. The animations are set to begin “after transition” or in other words, right after the slide loads.

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Using the JW player to run javascripts at specific time points in the video

Note: this tutorial is still very much in draft form. Additional instructions for those not familiar with javascript and more examples will be added soon.

The Jeroen Wijering Media Player is a widely used free, open-source Flash-based media player, available for download from Jeroenwijering.com.

The JW player has an extensive Javascript API which allows it to communicate with events and elements on the page it is embedded in. Using this feature, the player can execute javascript functions on the page whenever the video reaches a specific time point.

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