June 2017
Intermediate to advanced
873 pages
18h 9m
English
Content preview from Dart: Scalable Application DevelopmentBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Notifying the user of an update
However impressive a created display is it is unlikely to hold the user's attention forever and they are likely to switch to another application or browser tab. Luckily, HTML5 has a feature that will allow notifications on the desktop.
The main.dart function quakeUpdate checks if there is a significant update to notify the user about. To determine which item in the list to notify the user about, the lastWhere method is used. This List method finds the last item in the list that matches the criteria defined by the supplied function. In this case, we look at each feature's magnitude value (stored in gf[2]) and return true or false if the value meets the threshold:
quakeUpdate([Timer t = null]) async { await featPlotter.updateData(); ...Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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