RecycleView Question

[vladutmd]

Hi everyone,

I'm working on a Dictionary app and I'm having some issues with the RecycleView updating.
Essentially, the program works (or it should) as follows:

A ScreenManager is used and 2 screens are created at run time: the search screen and the Word (result) screen.

1. User enters search phrase on the Search screen in a textinput widget.
2. A Search class is used that finds the content in the dictionary
3. The results are updated in the rv.data
4. When clicking on a result, the user is taken to a new screen where the data is displayed.
5. If the user clicks the "Back" button, they are taken back to the word screen.


To simplify it now, I made a simple Search class that simply returns results based on the letters typed. Now, onto the issues I am having. Please see GIF I attached to this post. The initial part works as expected. When I click on a result, it takes me to the result screen and everything is fine. I click back and it takes me to the search list. The problem I am having is after I have clicked on a word and then back and I change the textinput text I get strange behaviour. Similarly, when I click on the textinput it is supposed to take me back to the search screen. Additionally, when I delete some of the text, it sometimes takes me back to the word screen.
I suspect the issue lies with changing the indices and how the recycleview handles updates but I'm not too sure how to fix it.
I appreciate any help or suggestions.

Thanks,
Vlad

[vladutmd]

Here's a GIF showing the problem I am having.

[Elliot Garbus]

I simplified the RecycleView.  

I added a ToggleButton to word.  I added an index to the rv data list, and made the rv data list a property so it will update automatically.

If you have any questions on these changes feel free to reach out.

 

 

 

From: 'vladutmd' via Kivy users support
Sent: Friday, August 28, 2020 12:31 PM
To: Kivy users support
Subject: [kivy-users] Re: RecycleView Question

 

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[vladutmd]

Thank you so much, it works as I expect it now. I'll work on it the next few days and reach out if there's anything that's unclear.