Monthly Archives: May 2011


SecurVid HD [Advertisement]

by Marcus Zarra

This is a short introductory article to welcome a new application to Zarra Studios.

We are involved in a lot of contract work and frequently our clients will give us video files. These files can be demos, mock ups, advertisements, etc.

As a developer on the move, I like to keep these with me and on my iPad so that I can review them whenever I want.

Of course, Client A does not want Client B to be able to accidentally see their files. Lawsuits happen that way.

To make this even more fun, everyone wants to borrow your iPad. Everyone wants to touch it and play with it. This increases the risk of the videos getting into the wrong hands.

From this, SecurVid was born.

## Features ##

SecurVid is designed to put videos behind a password lock. The videos are kept encrypted on disk and are not backed up to your computer that you sync your iPad with. This means that it is not designed to be a storage system for your videos but a protection for videos you need access to but don’t want everyone who borrows your iPad to see.

SecurVid has a lossy way to reset its password in case you forget it. Enter the wrong password three times and it will offer to reset for you. However that reset comes at a price; it will first delete all of your videos before offering to reset the password.

Once you are into SecurVid you can watch the videos you have already loaded naturally. You can also add more videos via iTunes as well as from any other application that is configured with file sharing. Therefore if a client emails you a video you can tap and press on the video file in mail on your iPad and load it into SecurVid.

Likewise you can export videos from SecurVid either for emailing or for loading into another application. You can even mark a video as “unprotected” and allow iTunes to see it next time you plug in your iPad.

## The Future ##

This is the 1.0 release of SecurVid and has the core features that I/we needed in the application. However it is just the beginning for this application. As the application matures we will be adding additional features and continuing to release updates.

## Cost ##

Because the 1.0 has only the core set of features we are offering it at an introductory price of $4.99. That price will remain until the next set of features are added. When that occurs we will increase the price up to the next appropriate level. However if you bought the 1.0 you will get these upgrades for free.

SecurVid HD is available on the App Store now.


Core Data and Threads, Without the Headache

by Saul Mora

I know I mentioned we would talk about customizing the fetch requests, however, I have been working on some code related to the Active Record Fetching project, which I am renaming to MagicalRecord, that is also just as useful as fetching–threading.

Whenever most cocoa developers mention threading and Core Data in the same sentence, the reaction I see most often is that of mysticism and disbelief. For one, multithreaded programming in general is hard–hard to design correctly, hard to write correctly, and debugging threads is just asking for trouble. Introducing Core Data into that mix can seem like the straw that broke the camel’s back. However, by following a few simple rules and guidelines, and codifying them into a super simple pattern, one that may be familiar to you, we can achieve safer Core Data threading without the common headaches.