September 2019
Beginner
512 pages
12h 52m
English
Content preview from Flutter for Beginners
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Taking pictures with image_picker
Flutter does not communicate with the camera API directly, as this is a platform-level resource. The image_picker plugin, as its name suggests, helps with picking an image. It enables importing image files from the gallery and taking new pictures using the camera.
First, we add the dependency to the pubspec.yaml file and get it with the flutter packages get command:
dependencies: image_picker: ^0.5.0 # Image picker
We control image picking in the same place as the user enters their display name after login, in the final step of the Stepper widget. When the user presses the small avatar image, the camera opens to take a picture:
// login_page.dart// part of LoginScreenState class void _importImage() async ...
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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.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.