Notes of a Developer

if you will use or used AVPlayer or you want just know about changes, you can check AudioRouteChange. Simple solution: Add framework AudioToolbox and add import to file 1#import <AudioToolbox/AudioToolbox.h> Insert into init method or any other 1AudioSessionAddPropertyListener (kAudioSessionProperty_AudioRouteChange, callbackHeadphone_func, self); Listener callback 12345678910111213141516171819202122232425void callbackHeadphone_func ( void *inClientData, AudioSessionPropertyID inID, UInt32 inDataSize, const void *inData [...]

Sorting by block 12345678910111213141516171819NSArray *stringsArray = [NSArray arrayWithObjects:                                  @"string 1",                                  @"String 21",                       [...]

Doc about font metric Getting Font Metrics

Little application for getting geo location from photo

If the Terminal command requires Administrator Privilege (aka sudo), use AuthorizationExecuteWithPrivileges instead. The following will create a file named “com.developers-life.test” is the root directory “/System/Library/Caches”. 123456789101112131415AuthorizationRef authorizationRef; FILE *pipe = NULL; OSStatus err = AuthorizationCreate(nil,                                    kAuthorizationEmptyEnvironment,     [...]

Simple drawing arrow.

Nice window! Thanks, Matt Legend Gemmell! I us it in my apps, good solution! :) A cool NSWindow subclass which lets you easily attach a view to another window, displayed in a floating “speech-bubble”-like borderless window. Very handy for contextual help, showing options for a certain control, or just to draw attention to things. Have [...]

Custom message box on Cocoa, like iOS messsge bubbles!

Here’s a simple little category on NSButton which adds -textColor and -setTextColor: methods to the class. Header: 1234567#import <Cocoa/Cocoa.h> @interface NSButton (TextColor) – (NSColor *)textColor; – (void)setTextColor:(NSColor *)textColor; @end Implementation: 12345678910111213141516171819202122232425262728293031#import "NSButton+TextColor.h" @implementation NSButton (TextColor) – (NSColor *)textColor {     NSAttributedString *attrTitle = [self attributedTitle];     int len = [attrTitle length];     [...]

В предыдущих статьях писал, что хотел перевести одну интересную статью с английского, но вот нашел перевод  хорошей статьи на русский. Думаю автор перевода не будет против если я копию возьму себе :) Что это? Grand Central Dispatch, или, ко­рот­ко, GCD — это низ­ко­уров­не­вое API, ко­то­рая от­кры­ва­ет но­вый спо­соб ра­бо­тать с па­рал­лель­ны­ми (ори­ги­наль­но это concurrent, а не [...]