iOSMessageExport | This is not exactly the best way to use Perl
kandi X-RAY | iOSMessageExport Summary
kandi X-RAY | iOSMessageExport Summary
iOSMessageExport
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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of iOSMessageExport
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iOSMessageExport Examples and Code Snippets
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QUESTION
I have a problem with my code today. I try to update a label and a progress view inside a for loop, but neither the label or the progress bar update.
I can't understand why ... Here is the code if you can deal with it
...ANSWER
Answered 2018-Mar-23 at 19:11You can't run a for loop on the main thread and have UI updates show up. UI changes don't take place until your code returns and the app services the main event loop.
Conversely, if the code you posted is running on a background thread (which it probably should be) then you need to wrap the UI updates (changes to your labels and progress bar) in calls to DispatchQueue.main.async()
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