[B! Objective-C] twodollarzã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯

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Objective-Cã«é–¢ã™ã‚‹twodollarzã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (8)

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Cocoaã®æ—¥ã€…: UIScrollView - ãƒšãƒ¼ã‚¸ã‚¹ã‚¯ãƒãƒ¼ãƒ«ã§ç©ºç™½ã‚’æŒŸã‚€
å®Ÿè£… å®Ÿè£…ã—ã¦ã¿ã‚ˆã†ã€‚ã¾ãšã‚«ã‚¹ã‚¿ãƒ ãƒ“ãƒ¥ãƒ¼ã‚’å®šç¾©ã—ã¦ãŠãã€‚ @interface CustomView : UIView { UIColor* color; } @end åˆæœŸåŒ–æ™‚ã«ãƒ©ãƒ³ãƒ€ãƒ ã‚‚ã©ããªè‰²ã‚’æ±ºã‚ã¦ãã®è‰²ã§å¡—ã‚Šã¤ã¶ã™ã€‚ @implementation CustomView - (id)initWithFrame:(CGRect)frame { if ((self = [super initWithFrame:frame])) { // Initialization code CGFloat red = (rand()%255) / 255.0; CGFloat green = (rand()%255) / 255.0; CGFloat blue = (rand()%255) / 255.0; color = [UIColor colorWithRed:red green:green
twodollarz 2012/05/14
Objective-C

iPhone
ãƒªãƒ³ã‚¯
__OBJC__ in Objective-C
What does __OBJC__ mean in Objective-C? #import <Availability.h> #ifdef __OBJC__ #import <Foundation/Foundation.h> #import <UIKit/UIKit.h> #endif
twodollarz 2012/04/21
Objective-C
ãƒªãƒ³ã‚¯
ã€é€£è¼‰ã€‘ãƒ€ã‚¤ãƒŠãƒŸãƒƒã‚¯Objective-C
Mac OS Xã®ç™»å ´ã¨ã¨ã‚‚ã«è„šå…‰ã‚’æµ´ã³ã‚‹"Objective-C"ã€‚NeXTã§ã‚‚ãã®åŸºç›¤ã«ä½¿ç”¨ã•ã‚ŒãŸæ´å²ã‚ã‚‹ç”±ç·’æ£ã—ã„è¨€èªžãªãŒã‚‰ã€ä»ŠãªãŠæ–°é®®ãªç‰¹å¾´ã‚’å¤šãå‚™ãˆ ã‚‹è¨€èªžã§ã™ã€‚ãƒ€ã‚¤ãƒŠãƒŸãƒƒã‚¯Objective-Cã§ã¯ãã®ãªã‹ã§ã‚‚ç‰¹ã«ã€Œå‹•çš„åž‹ä»˜ã‘ã€ã«ç€ç›®ã€‚åŒã˜ãã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆæŒ‡å‘ã®Javaãªã©ã¨ã¯ä¸€å‘³ç•°ãªã£ãŸã“ã® è¨€èªžã®é…åŠ›ã«ã›ã¾ã‚‹ã“ã¨ã§ã€ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆæŒ‡å‘ãã®ã‚‚ã®ã«å¯¾ã™ã‚‹ç†è§£ã‚’æ·±ã‚ã‚‹ã“ã¨ã‚’ç›®çš„ã¨ã—ã¾ã™ã€‚
twodollarz 2012/04/18
Objective-C
ãƒªãƒ³ã‚¯
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twodollarz 2011/10/04
Python

Objective-C
ãƒªãƒ³ã‚¯
iOSã‚¢ãƒ—ãƒªé–‹ç™ºã®ãƒ¡ãƒ¢ãƒªç®¡ç†ã§æ°—ã‚’ã¤ã‘ã‚‹ã“ã¨ - A Day In The Life
Objective-C ã§ã®é–‹ç™ºã«ã ã„ã¶æ…£ã‚Œã¦ããŸã®ã§ã™ãŒã€ã„ã¾ã ãƒ¡ãƒ¢ãƒªç®¡ç†ã¾ã‚ã‚Šã§ãƒãƒžã‚‹ã“ã¨ãŒå¤šã„ã®ã§ã¾ã¨ã‚ã¦ã¿ã¾ã—ãŸã€‚ ãƒ¡ãƒ¢ãƒªã‚’ç¢ºä¿ã—ã¦ã‹ã‚‰è§£æ”¾ã™ã‚‹ã¾ã§ã®æµã‚Œ ãƒ¡ãƒ¢ãƒªã‚’ç¢ºä¿ã—ã¦ã‹ã‚‰è§£æ”¾ã™ã‚‹ã¾ã§ã®æµã‚Œã¯ä»¥ä¸‹ã®å›³ã®ã‚ˆã†ã«ãªã‚Šã¾ã™(å›³ã¯ã‚¢ãƒƒãƒ—ãƒ«ã®ã‚µã‚¤ãƒˆã‹ã‚‰å¼•ç”¨)ã€‚ alloc ã¾ãŸã¯ init ã™ã‚‹ã¨å‚ç…§ã‚«ã‚¦ãƒ³ãƒˆãŒ1ã«ãªã‚Šã¾ã™ alloc ã¾ãŸã¯ init ç³»ãƒ¡ã‚½ãƒƒãƒ‰ã‚’å‘¼ã¶ã¨å‚ç…§ã‚«ã‚¦ãƒ³ãƒˆãŒ1ã«ãªã‚Šã¾ã™ã€‚ ã“ã®ã‚ˆã†ã«æ›¸ã„ãŸã®ã¯ã€ã‚¯ãƒ©ã‚¹ã®ä»•æ§˜ã«ã‚ˆã£ã¦ alloc ãƒ¡ã‚½ãƒƒãƒ‰ã§ retainCount ãŒ1ã«ãªã‚‹ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆã¨ init ç³»ã®ãƒ¡ã‚½ãƒƒãƒ‰ã§ retainCount ãŒ1ã«ãªã‚‹ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆãŒã‚ã‚‹ãŸã‚ã§ã™ã€‚alloc ã¨ init ã¯ã‚»ãƒƒãƒˆã§å‘¼ã°ã‚Œã‚‹ã“ã¨ãŒã»ã¨ã‚“ã©ãªã®ã§ã“ã®é•ã„ãŒå•é¡Œã«ãªã‚‹ã“ã¨ã¯ãªã„ã¨æ€ã„ã¾ã™ãŒå¿µã®ãŸã‚ã€‚ int main() { /* allocã§å‚ç…§ã‚«ã‚¦ãƒ³ãƒˆ1 */ NS
twodollarz 2011/05/29
Objective-C

Memory

Leak
ãƒªãƒ³ã‚¯
Obejctive-C 3åˆ†ã‚¯ãƒƒã‚ãƒ³ã‚° - A Day In The Life
ã“ã®è¨˜äº‹ã§ã¯ C++ ã‚„ Javaã€Câ™¯ã€Rubyãªã©ã®ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆæŒ‡å‘è¨€èªžã®ä½¿ç”¨çµŒé¨“ãŒã‚ã‚‹æ–¹ã®ãŸã‚ã« Objective-C ã®ç‰¹å¾´ãŒã•ãã£ã¨ç°¡å˜ã«ã‚ã‹ã‚‹ã‚ˆã†ã«ã¾ã¨ã‚ã¦ã¿ã¾ã—ãŸã€‚ Objective-C ã£ã¦ã©ã‚“ãªè¨€èªžï¼Ÿ ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆæŒ‡å‘è¨€èªžã¯å¤§ããã€Œã‚¯ãƒ©ã‚¹ãƒ™ãƒ¼ã‚¹å‹•çš„åž‹ä»˜ã‘ã€ã€Œã‚¯ãƒ©ã‚¹ãƒ™ãƒ¼ã‚¹é™çš„åž‹ä»˜ã‘ã€ã€Œãƒ—ãƒãƒˆã‚¿ã‚¤ãƒ—ãƒ™ãƒ¼ã‚¹*1å‹•çš„åž‹ä»˜ã‘ã€ã®3ã¤ã«ã‚ã‘ã‚‹ã“ã¨ãŒå‡ºæ¥ã¾ã™ã€‚Objective-C ã¯ã€Œã‚¯ãƒ©ã‚¹ãƒ™ãƒ¼ã‚¹å‹•çš„åž‹ä»˜ã‘ã€ã«åˆ†é¡žã•ã‚Œã‚‹ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆæŒ‡å‘è¨€èªžã§ã™*2ã€‚Objective-C ã‚’ä»–ã®ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆæŒ‡å‘è¨€èªžã¨æ¯”è¼ƒã—ã¦åˆ†é¡žã—ã¦ã¿ã‚‹ã¨ä»¥ä¸‹ã®å›³ã®ã‚ˆã†ã«ãªã‚Šã¾ã™ã€‚ ã‚¯ãƒ©ã‚¹ãƒ™ãƒ¼ã‚¹å‹•çš„åž‹ä»˜ã‘ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆæŒ‡å‘è¨€èªžã®å…ƒç¥–ã¨ã„ãˆã‚‹ã®ãŒ Smalltalk ã§ã™ã€‚Objective-C ã¯ Cè¨€èªžã‚’ãƒ™ãƒ¼ã‚¹ã« Smalltalk åž‹ã®ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆæŒ‡å‘æ©Ÿèƒ½ã‚’æŒãŸã›ãŸè¨€èªžã§ã™ã€‚ å¿…è¦ãªå‰æçŸ¥è˜ Objective
twodollarz 2011/05/29
ã“ã‚Œã€ã‚ã‹ã‚Šã‚„ã™ã„

Objective-C
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ãƒ¡ãƒ¢ãƒªç®¡ç† - ã‹ã¿ã‚„ã‚“ã®æŠ€è¡“è€…ãƒ–ãƒã‚°
iPhoneé–‹ç™ºã§ã€ãƒ¡ãƒ¢ãƒªç®¡ç†ã®åŸºç¤Žã‚’ç¤¾å“¡ã«ä¼ãˆã‚‹ã“ã¨ãŒå¢—ãˆã¦ããŸã®ã§ã€ã‚¨ãƒ³ãƒˆãƒªã¨ã—ã¦æ›¸ã“ã†ã€‚ Objective-CåŸºç¤Ž ãƒ¡ãƒ¢ãƒªç®¡ç†ã®å‰ã«ObjCã®åŸºç¤Žã¨ã—ã¦ã€ãƒ¡ã‚½ãƒƒãƒ‰å‘¼ã³å‡ºã—ã®è©±ã€‚ ã‚¯ãƒ©ã‚¹ã®ã‚¤ãƒ³ã‚¹ã‚¿ãƒ³ã‚¹aãŒmethodAã‚’ã‚³ãƒ¼ãƒ«ã™ã‚‹ã¨ãã¯ã€ [a methodA] ã¨æ›¸ãã€‚ã“ã®ã¨ãã€aãŒnilã ã£ãŸã¨ãã¯ã€ã‚¨ãƒ©ãƒ¼ã§ã¯ãªãã€ã‚³ãƒ¼ãƒ«ã•ã‚Œãªã„ã€‚methodAã«æˆ»ã‚Šå€¤ãŒã‚ã‚‹ã¨ãã¯ã€ãã‚Œã¯ã€0ã‚„nilã‚„NOãŒè¿”ã‚‹ã€‚ObjCã§ã¯ã€ void dealloc { if(a!=nil){ [a release]; } [super dealloc]; } ã¯ã€æ°—æŒã¡æ‚ªã„ã®ã§ã€nilãƒã‚§ãƒƒã‚¯ã¯ã‚„ã‚ã¾ã—ã‚‡ã†ã€‚ ãªãŠã€ObjCã§ã¯ã€å‹•çš„ã«ãƒ¡ã‚½ãƒƒãƒ‰ã‚’å·®ã—æ›¿ãˆã‚‹ã“ã¨ãŒã§ãã€ã‚³ãƒ¼ãƒ«ã®åº¦ã«ãƒ¡ã‚½ãƒƒãƒ‰ãŒå˜åœ¨ã—ã¦ã„ã‚‹ã‹ã‚‚ç¢ºèªã—ã¦ã„ã¾ã™ã€‚ãã®ãŸã‚ã€LLè¨€èªž(ãƒ©ã‚¤ãƒˆã‚¦ã‚§ã‚¤ãƒˆè¨€èªžã€ã‚¹ã‚¯ãƒªãƒ—ãƒˆï¼‰ã®ã‚ˆã†ã«æŸ”è»Ÿãªè¨˜è¿°ãŒå¯èƒ½ã§ã™ã€‚ãã—
twodollarz 2011/03/10
Objective-C

iphone

Memory
ãƒªãƒ³ã‚¯
2010-02-03
ã“ã®å‹•ç”»ã‚’è¦‹ã‚‹ã¨Safariã‚‚Mailã‚‚å†™çœŸç®¡ç†ã‚‚iPadå°‚ç”¨ã«ãªã£ã¦ã„ã‚‹ã“ã¨ãŒã‚ã‹ã‚‹ã€‚ ã§ã‹ããªã£ãŸiPodTouchã¨ç´¹ä»‹ã•ã‚Œã¦ã„ã‚‹æ‰€ãŒå¤šã„ã‘ã©ã€ãã‚Œã¯è©•ä¾¡ã‚’é–“é•ã£ã¦ã„ã‚‹ã®ã§ã¯ãªã„ã ã‚ã†ã‹ã€‚ åº—é ã§å®Ÿæ©Ÿã‚’è¦‹ã‚‹ã®ãŒæ¥½ã—ã¿ã ã€‚ JavaåŸºç¤Žæ–‡æ³•æœ€é€Ÿãƒžã‚¹ã‚¿ãƒ¼ - ã„ã‚ã„ã‚è§£æžæ—¥è¨˜ã‚’å‚è€ƒã«ã€Objective-Cã®ã‚‚ã®ã‚’æ›¸ã„ã¦ã¿ãŸã€‚ ã¾ã ã¾ã æ´ãŒæµ…ã„ã®ã§é–“é•ã£ã¦ã„ã‚‹æ‰€ãŒã‚ã‚‹ã‹ã‚‚ã—ã‚Œã¾ã›ã‚“ã€‚ [2012-08-03è¿½è¨˜] ARCã‚„ãƒªãƒ†ãƒ©ãƒ«è¡¨è¨˜ãªã©æ–°ã—ã„è¨˜æ³•ãŒå°Žå…¥ã•ã‚Œã€ã“ã®ãƒšãƒ¼ã‚¸ã«è¨˜è¼‰ã•ã‚Œã¦ã„ã‚‹ã“ã¨ã¯å¤šå°‘å¤ããªã‚Šã¤ã¤ã‚ã‚Šã¾ã™ã€‚ãŸã ã€ã¨ã£ã‹ã‹ã‚Šã¨ã—ã¦ã‹ã‚‹ãèªã‚“ã§ã¿ã‚‹ç¨‹åº¦ã§è‰¯ã„ã¨æ€ã„ã¾ã™ã€‚ä»Šã‚„è‰²ã‚“ãªäººãŒè§£èª¬è¨˜äº‹ã‚’å‡ºã—ã¦ã„ã‚‹ã®ã§ã€ãã¡ã‚‰ã‚‚æ˜¯éžå‚è€ƒã«ãªã•ã£ã¦ãã ã•ã„ã€‚ è¿½è¨˜ãŠã‚ã‚Š åŸºç¤Ž ãƒ‡ãƒãƒƒã‚¬ã‚³ãƒ³ã‚½ãƒ¼ãƒ«å‡ºåŠ› Xcodeã®ãƒ‡ãƒãƒƒã‚¬å‡ºåŠ›ã‚’è¡Œã†ã«ã¯NSLogé–¢æ•°ã‚’ä½¿ã„ã¾ã™ã€‚ printfã¨åŒæ§˜ã®ãƒ•ã‚©ãƒ¼ãƒžãƒƒãƒˆæ–‡
twodollarz 2010/03/03
Objective-C
ãƒªãƒ³ã‚¯
1