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Nullability and Objective-C - Swift Blog
Swift is now open source. For the latest news, visit the Swift open source blog UPDATE: This post was updated to use the new _Nullable syntax in Xcode 7. One of the great things about Swift is that it transparently interoperates with Objective-C code, both existing frameworks written in Objective-C and code in your app. However, in Swift there’s a strong distinction between optional and non-option
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Objective-Cã®ãƒ¡ãƒ¢ãƒªç®¡ç†ãŠã•ã‚‰ã„ã¨è§£æ”¾tips ã“ã‚“ã«ã¡ã¯ã€‚ iOS/Objective-Cã«ã‚ˆã‚‹ã‚¢ãƒ—リ開発ã§ã¯å‚照カウントã«ã‚ˆã‚‹ãƒ¡ãƒ¢ãƒªç®¡ç†ãŒå¿…è¦ã«ãªã‚Šã¾ã™ã€‚ 今回ã¯iOS/Objective-Cã§ã®ãƒ¡ãƒ¢ãƒªç®¡ç†ã®åŸºç¤Žã‹ã‚‰ãƒ¡ãƒ¢ãƒªãƒªãƒ¼ã‚¯ã®æ¤œçŸ¥ã¾ã§è§£èª¬ã—ãŸã„ã¨æ€ã„ã¾ã™ã€‚ å‚照カウント Objective-Cã®å…¨ã¦ã®ã‚ªãƒ–ジェクトã¯NSObjectを継承ã—ã¦ã„ã¾ã™ã€‚ å…¨ã¦ã®ã‚ªãƒ–ジェクトã¯ã“ã®NSObjectã®ãƒ¡ã‚½ãƒƒãƒ‰ã‚’通ã˜ã¦å‚照カウントを扱ã„ã¾ã™ã€‚ ã“ã®å‚照カウントãŒã€ã‚ªãƒ–ジェクトãŒã„ãã¤ã®ã‚ªãƒ–ジェクトã‹ã‚‰å¼·å‚ç…§ã•ã‚Œã¦ã„ã‚‹ã‹ã‚’表ã—〠0ã«ãªã£ãŸã‚ªãƒ–ジェクトã¯èª°ã‹ã‚‰ã‚‚å‚ç…§ã•ã‚Œã¦ã„ãªã„ãŸã‚解放ã•ã‚Œã‚‹ã€ã¨ã„ã†ä»•çµ„ã¿ã«ãªã£ã¦ã„ã¾ã™ã€‚ C++ã«è©³ã—ã„æ–¹ã¯shared_ptrをイメージã™ã‚‹ã¨è‰¯ã„ã§ã—ょã†ã€‚ より詳細ãªè§£èª¬ã¯Wikipediaãªã©ãŒå‚考ã«ãªã‚Šã¾ã™ã€‚ Objective-Cã®å‚照カウント
NSUserDefaults を使ã£ãŸãƒ‡ãƒ¼ã‚¿ã®ä¿å˜æ–¹æ³• - A Day In The Life
iOS ã§ãƒ‡ãƒ¼ã‚¿ã‚’永続化ã™ã‚‹æ–¹æ³•ã®ç¶šãã§ã™ã€‚今回㯠NSUserDefaults クラスを使ã£ãŸãƒ‡ãƒ¼ã‚¿ã®æ°¸ç¶šåŒ–方法ã«ã¤ã„ã¦èª¬æ˜Žã—ã¾ã™ã€‚ã“ã®ã‚¯ãƒ©ã‚¹ã‚’使ã†ã¨ç°¡å˜ã«ãƒ‡ãƒ¼ã‚¿ã®ä¿å˜ã¨èªã¿è¾¼ã¿ãŒå‡ºæ¥ã‚‹ã®ã§ã‚¢ãƒ—リ開発ã§é »ç¹ã«ä½¿ç”¨ã•ã‚Œã¦ã„ã¾ã™ã€‚ NSUserDefaults ã£ã¦ä½•ï¼Ÿ アプリ固有ã®è¨å®šå€¤ã‚’ä¿å˜ã™ã‚‹ã“ã¨ã«ç‰¹åŒ–ã—ãŸã‚¯ãƒ©ã‚¹ã§ã™ã€‚アプリ開発者㯠NSUserDefaults オブジェクトを通ã—㦠Key-Value å½¢å¼ã§ãƒ‡ãƒ¼ã‚¿ã«ã‚¢ã‚¯ã‚»ã‚¹ã—ã¾ã™ã€‚データã®ä¿å˜å ´æ‰€ã®ç®¡ç†ã¯ NSUserDefaults オブジェクトãŒã™ã¹ã¦è¡Œã£ã¦ãã‚Œã¾ã™ã€‚ 実際ã®ãƒ‡ãƒ¼ã‚¿ã¯ ホーム/Library/Preferences 以下ã«ãƒ—ãƒãƒ‘ティリスト形å¼ã§ä¿å˜ã•ã‚Œã¾ã™ã€‚ データã®ä¿å˜ã¨å–å¾—ã§ä½¿ç”¨ã™ã‚‹ãƒ¡ã‚½ãƒƒãƒ‰ NSUserDefaults クラスã«ã¯ãƒ‡ãƒ¼ã‚¿åž‹ã«å¿œã˜ã¦ä»¥ä¸‹ã®ä¿å˜ã¨å–得メソッドãŒå®šç¾©ã•ã‚Œã¦ã„ã¾ã™ã€‚ オブジェクトã®åž‹
An Effective Healthcare IoT Project Requires a Different Approach.
For the sake of this article when I talk about IoT, or Internet of Things, I’m broadly referring to “a network of, 1 or more, physical objects that are connected to the internet and must exchange data with other devices and systems, for the sake of enabling human actions.â€Â I know, that’s a mouthful but, I believe it frames what comes next, in the context of healthcare IoT. What makes IoT valuable?
[Xcode 6] セグエã®åå‰ãŒæ–°ã—ããªã‚Šã¾ã—㟠| DevelopersIO
Push セグエや Modal セグエ㯠Deprecated ã«ãªã‚Šã¾ã—㟠Xcode 6 ã® Storyboard ã§ã¯ã‚»ã‚°ã‚¨ãŒä¸€æ–°ã•ã‚Œã€ã“ã‚Œã¾ã§ã‚ˆã使ã£ã¦ã„㟠Push セグエ〠Modal セグエ〠Popover セグエã€Replace セグエ㯠Deprecated ã«ãªã‚Šã¾ã—ãŸã€‚ æ–°ã—ã„セグエã«ãªã£ãŸã®ã‹ï¼ï¼Ÿã¨æ€ã„ãã‚„ã€åå‰ãŒå¤‰ã‚ã£ãŸã ã‘ã§ã™(多分)。確èªã—ã¦ã„ãã¾ã—ょã†ã€‚ Show セグエ Show セグエ㯠Xcode 5 ã¾ã§ã® Push セグエã«ç›¸å½“ã—ã¾ã™ã€‚ç¾åœ¨è¡¨ç¤ºã•ã‚Œã¦ã„ã‚‹ View Controller ã®ä¸€éšŽå±¤å¥¥ã«æŠ¼ã—出ã™å½¢ã§ç”»é¢é·ç§»ã—ã¾ã™ã€‚æ–°ã—ã„ View Controller ã¯å³ã‹ã‚‰å·¦ã«ã‚¹ãƒ©ã‚¤ãƒ‰ã™ã‚‹ã‚¢ãƒ‹ãƒ¡ãƒ¼ã‚·ãƒ§ãƒ³ã§è¡¨ç¤ºã•ã‚Œã¾ã™ã€‚リスト画é¢ã‹ã‚‰è©³ç´°ç”»é¢ã«é·ç§»ã™ã‚‹ã¨ããªã©ã«ä½¿ã„ã¾ã™ã€‚ Show Detail セグエ Show Detail セグエ㯠Xcode
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[iOS 7] Xcode 5 ã§å§‹ã‚ã‚‹ Auto Layout 入門 #2 – Interface Builder ç·¨ | DevelopersIO
Xcode 5 ã® Auto Layout サãƒãƒ¼ãƒˆæ©Ÿèƒ½ iOS 6 㧠Auto Layout ãŒå°Žå…¥ã•ã‚ŒãŸéš›ã«ã€Xcode 4 ã® Interface Builder ã«ãŠã„ã¦ã‚‚ Auto Layout ã«ãŠã‘る制約を編集ã™ã‚‹æ©Ÿèƒ½ãŒè¿½åŠ ã•ã‚Œã¾ã—ãŸã€‚ã—ã‹ã—ã€æ…£ã‚Œãªã„ã†ã¡ã¯ã“ã¡ã‚‰ãŒæ„図ã—ãªã„挙動をã—ã¦ã„るよã†ã«è¦‹ãˆã‚„ã™ãã€ã¾ãŸã€ã‚³ãƒ³ãƒãƒ¼ãƒãƒ³ãƒˆã®æ•°ãŒå¤šããªã‚‹ã¨åˆ¶ç´„ã®æ•°ãŒçˆ†ç™ºçš„ã«å¢—ãˆã¦ã—ã¾ã†äº‹ã‚‚ã‚ã‚Šã€ã“ã®æ©Ÿèƒ½ã¯ãŠä¸–辞ã«ã‚‚使ã„ã‚„ã™ã„ã¨ã¯è¨€ã„難ã„ã‚‚ã®ã§ã—ãŸã€‚ Xcode 5 ã§ã¯ã€Auto Layout ã«ãŠã‘る制約ã®ç·¨é›†æ©Ÿèƒ½ãŒä¸€æ–°ã•ã‚Œã¦ã„ã¾ã™ã€‚ã‚„ã¯ã‚Šã€Auto Layout ã®åˆ¶ç´„ã«é–¢ã™ã‚‹æœ€ä½Žé™ã®çŸ¥è˜ã¯å¿…è¦ã¨ã•ã‚Œã‚‹ã‚‚ã®ã®ã€åˆ¶ç´„ã®ç·¨é›†ãŒã—ã‚„ã™ããªã£ãŸã“ã¨ã§æ ¼æ®µã«ä½¿ã„ã‚„ã™ããªã‚Šã¾ã—ãŸã€‚ 今回ã¯ã€Xcode 5 ã® Auto Layout 関連機能を確èªã—ãŸã„ã¨æ€ã„ã¾ã™ã€‚ Auto Layout ã®åˆ‡
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超簡å˜ã«Sqliteã‚’ã¤ã‹ã†
iPhoneã§è¶…ç°¡å˜ã«Sqliteã‚’ã¤ã‹ã£ã¦ã¿ãŸã€‚ http://iphone-dev.g.hatena.ne.jp/ktakayama/20080922/1222096534 ãªã©ã‚’見るã¨ã™ã”ãé¢å€’ãã†ãªã®ã§ã€é©å½“ãªObjective-cã®ãƒ©ã‚¤ãƒ–ラリをã²ã‚ã£ã¦ããŸã ã‘ã€ã¨ã‚‚ã„ã†ã€‚ ステップ Sqliteã®DBを生æˆã—ã€Xcodeã«ç™»éŒ²ã™ã‚‹ Sqliteã®ãƒ©ã‚¤ãƒ–ラリをXcodeã«ç™»éŒ²ã™ã‚‹ Sqliteã®Obj-cライブラリã§ã‚ã‚‹FMDBã‚’Dlã—ã¦ãã¦ã€Xcodeã«ç™»éŒ²ã™ã‚‹ 色々コーディング DBを作æˆã—ã€ãƒ©ã‚¤ãƒ–ãƒ©ãƒªã‚’è¿½åŠ ã™ã‚‹ã¨ã“ã‚ã¾ã§ã¯ http://icodeblog.com/2008/08/19/iphone-programming-tutorial-creating-a-todo-list-using-sqlite-part-1/#create-db ãŒï¼ˆè‹±èªžã ã‘ã©ï¼‰å‚考ã«ãªã‚Šã¾ã™ã€‚
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