Will autocorrect ever be added? about unexpected-keyboard HOT 9 OPEN

This is definitely planned but not for the next release. Autocorrect is a very hard problem and I'll focus on a simple and reproducible system that give predictable results rather than a complex and smart system that can complete sentences.
The first version of this feature won't be better than the stock one. But importing custom dictionaries might be something I'll want too.

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Any updates on this?

I don't personally use auto-correct, but I find simple word suggestions to be incredibly invaluable when typing on mobile. Being able to fix minor typos on the fly with a single tap is a wonderful tool.

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Do you know from where to source dictionaries with an open license?

As for the Finnish language, at least the one which ships with the LineageOS stock keyboard is quite awful (lacks loads of grammatical cases and compounds).

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Would it be feasible to use Enchant?
There are bindings for python and some other languages, but not java afaik.

from unexpected-keyboard.

Do you know from where to source dictionaries with an open license?

As for the Finnish language, at least the one which ships with the LineageOS stock keyboard is quite awful (lacks loads of grammatical cases and compounds).

https://github.com/voikko

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Sorry, I might not have time to work on it during this year. I won't close the issue as I also want the feature but keep in mind it's not planned soon.

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I'll focus on a simple and reproducible system that give predictable results rather than a complex and smart system that can complete sentences.

I agree with this.

As someone in a multi-language environment, one issue I have constantly with many autocorrect systems is that they actually cause typing errors when they make wrong assumptions about what language you are using and "correct" the wrong language, or otherwise force you to switch to another layout, despite both languages using largely the same alphabet. So it would be great if the system could allow combining dictionaries of words from multiple languages without having to switch layouts all the time, or at least allow for custom dictionaries so we can combine them ourselves.

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Has any work on this been done yet?

I don't want to seem impatient, but considering that the last comment on this issue has been written almost a year ago I think it would be good to hear if anybody has put some thought into this system.

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I have thought about this feature for a while, although I still don't have time to implement it, as it will be a lot of work. However, the plan I formulated is as follows:

• Use wordfreq as a word frequency dictionary.
• Implement the autocorrect/autocomplete using a BK-Tree (like this one) with a Damerau–Levenshtein distance, or some other metric.
• The points above can be implemented in a CLI app for easy testing.
• Hook up the autocorrect to the Android keyboard.

The most uncertain point is the last one; I'm not sure how easy it is to retrieve the last typed word and render the word suggestion buttons.

This feature could be extended to:

• Use a custom metric that takes into account how common the word is (by its frequency), suggests a word if its prefix has been typed, considers the distance between letters in the current layout, etc.
• Allow choosing which dictionaries to download: there are 39 small dictionaries, ~200KB each, totaling ~8MiB, while the app today is only 633KB. It may not be worthwhile to ship all dictionaries with the app.
• Implement a small word prediction model to autosuggest words (though I'm not sure of a good option for this).

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