Lecture Archives - Page 2 of 4 - cs193p assignment solutions et al

Friday Session #6: Building Apps that People Want

Please note, this blog entry is from a previous course. You might want to check out the current one.

This weeks Friday session addresses marketing concepts of apps. It can be found on iTunes titled “Building Apps that People Want (November 11, 2011)”.

The lecturer is Mike Ghaffary, director of business development at Yelp and co-founder of BarMax, the most expensive iPhone/iPad app on the AppStore. He stresses three keys in the success of an app – its impact (“it should change the world” and “solve a real problem”), the criticality of its distribution (“publish early”, “get distribution partners”, “use users feedback”), and the composition of the team (“product manager is essential”, “friends do not make good business partners – coworkers do”).

Lecture #14: Core Data Demo

Please note, this blog entry is from a previous course. You might want to check out the current one.

Lecture fourteen is named “14. Core Data Demo (November 10, 2011)” and can be found at iTunes. Its slides are available at Stanford.

The theoretical part of this lecture is quite short providing an overview about Core Data thread safety and its usability for table views.

NSManagedObjectContext is not thread safe, thus it can only be accessed in the thread that created it. Because access is usually very fast, using the main thread is mostly file. Another approach is to use
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Lecture #13: Core Data

Please note, this blog entry is from a previous course. You might want to check out the current one.

Lecture thirteen is named “13. Core Data (November 8, 2011)” and can be found at iTunes. Its slides are available at Stanford.

This lecture covers Core Data and Documents, NSNotificationCenter and Objective-C Categories.

Core Data in object-oriented API to store data in a database based usually on SQL. Once a visual data mapping is created between database and objects, objects are created and queried using an object-oriented API. The columns in the database table are accessed vie @properties.
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Lecture #12: Persistence

Please note, this blog entry is from a previous course. You might want to check out the current one.

Lecture twelve is named “12. Persistence (November 3, 2011)” and can be found at iTunes. Its slides are available at Stanford.

The first part of this lecture is designated to guidelines of the final project of the course and because it is targeted at campus students has been omitted from the iTunes stream.

The second part is devoted to persistence – the ways to save data between launchings of an application.
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Lecture #11: Core Location and MapKit

Please note, this blog entry is from a previous course. You might want to check out the current one.

Lecture eleven is named “11. Core Location and MapKit (November 1, 2011)” and can be found at iTunes. Its slides are available at Stanford.

The theoretical part starts with an introduction to Core Location and MapKit.

CoreLocation is a framework managing location and heading and has no user interface. Its basic object is CLLocation and contains properties like coordinate, altitude, horizontal/verticalAccuracy, timestamp, speed, course.
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Lecture #9: Table Views

Please note, this blog entry is from a previous course. You might want to check out the current one.

Lecture nine is named “9. Table Views (October 25, 2011)” and can be found at iTunes. Its slides are available at Stanford.

The theoretical part starts with table views which allow to display static or dynamic lists of data in different styles. A table consists of a header, a footer and table cells possible divided in sections (also with a header and a footer). A cell can be of type subtitle, basic, right and left detail, as well as completely customized.
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Friday Session #4: Introduction to AVFoundation

Please note, this blog entry is from a previous course. You might want to check out the current one.

This weeks Friday session addresses the AV Foundation Framework. It can be found on iTunes titled “Introduction to AVFoundation (October 21, 2011)”.

In this lecture Salik Syed gives an overview on how the Objective-C interface can be used to access audio-visual media under iOS. After an high level discussion on the API he shows in a demo how to manipulate a video from the camera of an iPhone in real time.
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