Javascript in AnkiDroid?

[someguy]

I had an idea to add a timer to a shared deck using javascript. Someone told me on the Anki-Users forum that AnkiDroid may be problematic in this regard.

Basically, what I want to do is:

====>>>>
1. Detect the question-side of card by the *absence* of "hr id=answer".
1.2. Start a timer with:

     var elapsedTime = 0;

     var myTimer = setInterval(incrementTimer, 200);

2. Otherwise, it's the answer-side of card
2.2. Stop timer and write the elapsed time to the element on the card:

    window.clearInterval(myTimer)
    document.getElementById("timer").innerHTML = elapsedTime
<<<<====

This words perfectly with Anki desktop. However, someone said AnkiDroid can't do this. Something about a flip of the card being treated like a new card (creating a new environment).

My questions are:

1. Will this work on AnkiDroid?
2. If not, is there another way to pass the incremented timer value? (I googled and read something about get/set properties on Droid?).

I wanted to stay away from addons since this seemed like such a simple feature (especially when implemented within an environment using webkit).

Thanks.

[Houssam Salem]

Sorry for the late reply. As I mentioned on the Anki forum, no, this unfortunately won't work. For some reason, we're using a new WebView for each side of the card, so you can't keep data around between flips. Either this was a workaround for an old issue I'm not aware of or it's a holdover from the AnkiDroid 1 days. The reviewer code wasn't rewritten for AnkiDroid 2 and could use a bit of a cleanup.

This is something that I want as well, so I might look into it in the future, but we have other priorities at the moment. Don't hold your breath.

[Flavio Lerda]

The reason for replacing the WebView was that there used to be a leak in the code that handles @font-face in its implementation.

Replacing the view solved that issue.

Even before that though, the content of the WebView has always been reloaded from scratch, which means any of the state would

be lost.

https://code.google.com/p/ankidroid/issues/detail?id=687

The issue above is (I believe) fixed in ICS+ (and there is now a setting in the preferences to disable the workaround).

Changing the behavior to not reload the WebView content is something that would need to be implemented.

Flavio

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Flavio Lerda