NSImage.initWithContentsOfFile how to deallocate memory correctly in Objective-C with ARC?

Question

Cocoa

I have a simple OS X application that needs to frequently (very, very often) take a picture from a file on disk and change its dock icon to it.
Here's how I do it now.
Initialization

- (void)applicationDidFinishLaunching:(NSNotification *)aNotification {
    self.iconX =  [[NSImage alloc] initWithContentsOfFile: @"/Users/test.png"];
}

At the time of frequent change

[self.iconX initWithContentsOfFile: @"/Users/test.png"];
[NSApp setApplicationIconImage:self.iconX];

But since changes happen often, and the size of the picture can be large, the application simply eats up memory and hangs. I don’t understand how and what should be released in this case, provided that ARC is used by default?

Answer 1

[self.iconX initWithContentsOfFile: @"/Users/test.png"];

very bad to do this, use the same line as when starting