May 2022
Intermediate to advanced
688 pages
20h 12m
English
book
Android Programming: The Big Nerd Ranch Guide, 5th Edition
by Bryan Sills, Brian Gardner, Kristin Marsicano, Chris Stewart
Content preview from Android Programming: The Big Nerd Ranch Guide, 5th Edition
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Using a Camera Intent
The basic process to take a photo is relatively straightforward: You launch an external camera app, the user takes a photo, and then you update the crime with the path to the new file. To implement this, you are once again going to rely on the Activity Results API.
This time you are going to use the ActivityResultContracts.TakePicture() contract. It takes in a Uri, which will be generated by the FileProvider class using a File you will create. Once the user is finished taking the photo, the contract does not return that same Uri. Instead, it returns a Boolean telling you whether an image was saved to the file.
Create a class property on CrimeDetailFragment named takePhoto and initialize it using the Activity ...
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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.