rcomments | Workshop for rupy - | Learning library
kandi X-RAY | rcomments Summary
kandi X-RAY | rcomments Summary
Workshop for rupy
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QUESTION
Code 1 works when is running on the main activity but it creates a short black screen while accessing the SQL database.
To prevent the black screen I moved the SQL task to an AsyncTask but the data obtained from the query is not being passed to the adapter. I get no result out of it (Code 2). I can't figure out what is wrong. Please help.
Code 1
...ANSWER
Answered 2019-Feb-27 at 02:28The problem is that onPostExecute receives a null array? Or that the listView is never populated? What I see here is a race of threads, while your AsyncTask is still fetching info, the adapter is using an empty array to fill the list. And when the Asynctask finishes it loads the results on datamodels but never notifies the adapter that the data has changed. Either call an update on the adapter on passdata or create the adapter in passdata, then everything will work correctly.
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Install rcomments
You can use rcomments like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.
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