Cocoaã®æ—¥ã€…: é…延実行を Blocksã§è¨˜è¿°ã™ã‚‹
iOS/iPhone/iPad/MacOSX プãƒã‚°ãƒ©ãƒŸãƒ³ã‚°, Objective-C, Cocoaãªã© 数秒後ã«æŒ‡å®šã—㟠Blocks を実行ã™ã‚‹ãƒ¡ã‚½ãƒƒãƒ‰ã‚’作ã£ã¦ã¿ãŸã€‚利用イメージã¯ã“ã‚“ãªæ„Ÿã˜ã€‚ [self performBlock:^(void) { self.label.text = @"DONE-4"; } afterDelay:4]; performSelector:withObject:afterDelay: NSObject ã«ã¯æ•°ç§’後ã«æŒ‡å®šã—ãŸãƒ¡ãƒƒã‚»ãƒ¼ã‚¸ã‚’投ã’るメソッドãŒç”¨æ„ã•ã‚Œã¦ã„る。 NSObject Class Reference - performSelector:withObject:afterDelay: ã“れを利用ã—ã¦æ¸¡ã•ã‚ŒãŸ Blocksを実行ã™ã‚‹ãƒ¡ã‚½ãƒƒãƒ‰ã‚’用æ„ã™ã‚‹ã€‚今回㯠NSObject ã®ã‚«ãƒ†ã‚´ãƒªã¨ã—ã¦å®Ÿè£…ã—ã¦ã¿ãŸã€‚ ã“ã‚“ãªæ„Ÿã˜ã€‚ @interface
Programming with C Blocks on Apple Devices
Programming with C Blocks On Apple Devices by Joachim Bengtsson What are Blocks? What are Blocks Good For? Getting Started On and for Mac OS X 10.6 Snow Leopard, or for iOS 4 On Mac OS X 10.5 Leopard or for iPhone Blocks in C Syntax and Usage Memory Management Blocks in Objective-C Blocks and ARC (Automatic Reference Counting) Blocks in C++ Block Goodies References and Additional Sources Version H
C/Objective-C + Blocks ã§ã‚¯ãƒãƒ¼ã‚¸ãƒ£ - TrashSUITE
Blocks ã¨ã„ã†ã®ã¯ Apple ㌠C/C++/Objective-C å‘ã‘ã«ç‹¬è‡ªå®Ÿè£…ã—ãŸã‚¯ãƒãƒ¼ã‚¸ãƒ£çš„ãªæ©Ÿèƒ½ï¼ŽSnow Leopard リリース時㫠GCD ã™ã’ã‡ï¼ã¨ã„ã†è¨˜äº‹ã§è¦‹ã‹ã‘ã¦ã€ŽApple ã‚„ã‚Šã‚„ãŒã£ãŸï¼Œã‚ã®å¤‰æ…‹ã‚„ã‚Šã‚„ãŒã£ãŸã€ãらã„ã«ã—ã‹æ€ã£ã¦ã„ãªã‹ã£ãŸã®ã ã‘ã©ï¼ŒiPhone OS4.0 ã§ä½¿ã†ã“ã¨ã«ãªã‚Šãã†ãªã®ã§ï¼Œã‚¶ãƒƒã‚¯ãƒªã¨èª¿ã¹ã¦ã¿ãŸ ザクザクã£ã¨ãƒ‰ã‚ュメントをèªã¿ã¤ã¤ãƒ†ã‚¹ãƒˆã—ã¤ã¤ã¨ã„ã†çŠ¶æ…‹ã§æ›¸ã„ãŸãƒ¡ãƒ¢ãªã®ã§ï¼Œå˜˜ã‚’書ã„ã¦ã„ã‚‹å¯èƒ½æ€§ãŒå¤§ã„ã«ã‚ã‚‹ï¼ ä»¥ä¸‹ï¼ŒBlocks をクãƒãƒ¼ã‚¸ãƒ£ã¨å‘¼ã¶ シンプル㫠// ç„¡åã§ãƒ€ã‚¤ãƒ¬ã‚¯ãƒˆã«å‘¼ã¶ ^(void) {puts("closure");}(); //=> closure ^() {puts("closure");}(); //=> closure ^{puts("closure");}(); //=> closure // åå‰ã‚’付
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