Book Image

Mac Application Development by Example: Beginner's Guide

By : Robert Wiebe
Book Image

Mac Application Development by Example: Beginner's Guide

By: Robert Wiebe

Overview of this book

It's never been more important to have the ability to develop an App for Mac OS X. Whether it's a System Preference, a business app that accesses information in the Cloud, or an application that uses multi-touch or uses a camera, you will have a solid foundation in app development to get the job done.Mac Application Development by Example takes you through all the aspects of using the Xcode development tool to produce complete working apps that cover a broad range of topics. This comprehensive book on developing applications covers everything a beginner needs to know and demonstrates the concepts using examples that take advantage of some of the most interesting hardware and software features available.You will discover the fundamental aspects of OS X development while investigating innovative platform features to create a final product which take advantage of the unique aspects of OS X.Learn how to use Xcode tools to create and share Mac OS X apps. Explore numerous OS X features including iCloud, multi-touch trackpad, and the iSight camera.This book provides you with an illustrated and annotated guide to bring your idea to life using fundamental concepts that work on Mac.
Table of Contents (17 chapters)
Mac Application Development by Example Beginner's Guide
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Time for action – deleting an image


Because we have built our App around the Image Kit framework, we can trash unwanted images with a small amount of our own program code.

  1. In the BTSWindowController+Importer.m file, in the setupBrowser method, add the following program code to turn animation on for the Image Browser View:

    - (void) setupBrowser
    {   
        // Turn on the animation effect
        [self.m_imageBrowser setAnimates:YES];
  2. In the BTSWindowController+Importer.m file, in the IKImageBrowserDataSource section, add the following program code to delete the selected images:

    // Delete the selected images
    - (void) imageBrowser:(IKImageBrowserView *) a_view 
             removeItemsAtIndexes: (NSIndexSet *) a_indexes
    {
        // Cache a reference to the default
        // NSWorkspace object
        NSWorkspace * l_workspace = 
         [NSWorkspace sharedWorkspace];
        
        // Create an array to hold the deleted
        // objects
        NSMutableArray *l_deletedURLs =
        [[NSMutableArray alloc] init];
        
        // For all...