It's 4:30 am apologies for whatever mistakes you'll inevitably find. Look at the App Kit's NSApplication: it uses delegation ( NSApplicationDelegate), a singleton ( sharedApplication) and notifications ( NSApplicationDidFinishLaunchingNotification, etc). No one says that you're limited to one pattern per app or framework. Another one is the usage of a singleton class. Delegation is an example of this (and probably the second most visible). Model-view-controller is the most obvious Cocoa design pattern, but it isn't the only one used in Cocoa. This tutorial never even mentions the appdelegate class, so I guess it is not important if you use the MVC pattern? Knowing this, it might be tempting to assign delegate duties to your app's main view controller in addition to what it already does, but this is generally considered bad practice. This enables you to do things like performing a last-second cleanup before your app terminates, for instance.Ĭouldn't they just use the delegate class?Īn application's delegate class can be any class in your app, it just has to adopt the NSApplicationDelegate protocol. The program can also be called AppDelete copy, AppDelete-, AppDelete-update from. The most popular versions among the program users are 4.2, 4.1 and 4.0.
#Appdelete alfred for mac#
AppDelete for Mac lies within System Tools, more precisely System Optimization.
If your delegate class implements a method matching that selector, well, it does its thing. AppDelete 4.3.4 for Mac is free to download from our software library. When certain stages of application launch/quit occur, it can tell its delegate - which you define by declaring protocol conformance - that something is happening by sending the appropriate message to it ( e.g. An example is NSApplication, a class of which every Cocoa app is either an instance or a subclass.
Some classes in Cocoa make use of the delegation design pattern. What exactly is the ever present "ApplicationNameAppDelegate" class for?
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