January 2014
Intermediate to advanced
736 pages
70h 43m
English
Content preview from Android™ How to Program, Second EditionBecome 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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9.2.7. Getting a Private Key for Digitally Signing Your App
Before uploading your app to a device, Google Play or other app marketplaces, you must digitally sign the .apk file using a digital certificate that identifies you as the author of the app. A digital certificate includes your name or company name, contact information, etc. It can be self-signed using a private key (i.e., a secure password used to encrypt the certificate); you do not need to purchase a certificate from a third-party certificate authority (though it’s an option). Eclipse automatically digitally signs your app when you execute it in an emulator or on a device for debugging purposes. That digital certificate is not valid for use with Google Play, and it expires 365 days ...
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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.