iOS搴旂敤寮€鍙戝靉闂ㄦ寚鍗?- 緙栧啓 Objective-C 浠ｇ爜-鍗氬-浜戞爾紺懼尯-闃塊噷浜?

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• 鍔ㄦ€佽澆鍏?/strong>聽鍙互璁╀綘鐨勭▼搴忓湪榪愯鏃舵坊鍔犱唬鐮佹ā鍧椾互鍙婂叾浠栬祫婧愩€傛湁浜嗗姩鎬佽澆鍏ョ壒鎬э紝搴旂敤鍙互鏍規嵁闇€瑕佸姞杞戒竴緋誨垪鍙墽琛屼唬鐮佷互鍙婅祫婧愶紝鑰屼笉鏄湪鍚姩鏃跺氨鍔犺澆鎵€鏈夌粍浠躲€傝繖鑳藉澶уぇ鎻愰珮鎬ц兘銆傚彲鎵ц浠ｇ爜涓彲浠ュ惈鏈夊拰紼嬪簭榪愯鏃舵暣鍚堢殑鏂扮被銆?/li>

綾誨拰瀵矽薄

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鍚庣紑銆佹簮鏂囦歡綾誨瀷锛?/strong>

• .h 鈥?澶存枃浠躲€傚ご鏂囦歡鍚湁綾匯€佺被鍨嬨€佸嚱鏁板拰甯擱噺鐨勫０鏄庛€?/li>
• .m 鈥?婧愭枃浠躲€傝繖涓悗緙€鐨勬簮鏂囦歡鍙互鍚屾椂鍖呭惈 Objective-C 鍜?C 璿█鐨勪唬鐮併€?/li>
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鍥?1聽涓€孌電被澹版槑

綾葷殑瀹炵幇鐨勮娉曚篃鏄被浼肩殑銆傚紑澶存槸緙栬瘧鍣ㄦ寚浠ぢ燖implementation锛堝悗闈㈡湁綾葷殑鍚嶇О锛夛紝緇撳熬鏄燖end 鎸囦護銆傛柟娉曠殑瀹炵幇浠ｇ爜灝卞湪榪欎袱涓寚浠ょ殑涓棿銆傚疄鐜頒唬鐮佷腑蹇呴』瀵煎靉瀹冪殑鎺ュ彛鏂囦歡锛屽啓鍦ㄤ唬鐮佺殑絎竴琛屻€?/p>

#import 鈥淢yClass.h鈥?/p>

@implementation MyClass
- (id)initWithString:(NSString *)aName
{
聽 聽 // 鍦ㄨ繖閲屼功鍐欎唬鐮?br> }

+ (MyClass *)myClassWithString:(NSString *)aName
{
聽 聽 // 鍦ㄨ繖閲屼功鍐欎唬鐮?br> }
@end

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涓嬮潰鐨勪緥瀛愬睍紺轟簡闈欐€佺被鍨嬪拰鍔ㄦ€佺被鍨嬪彉閲忕殑澹版槑鏂瑰紡锛?/p>

MyClass *myObject1;聽 // 闈欐€佺被鎬?br> id聽聽聽聽聽聽聽聽聽聽聽聽聽myObject2;聽 // 鍔ㄦ€佺被鍨?br> NSString *userName;聽 // 鏇懼嚭鐜板湪鈥滀綘鐨勭涓€涓?iOS 搴旂敤鈥濅腑锛堥潤鎬佺被鍨嬶級

璿鋒敞鎰忕涓€涓０鏄庨噷鐨?* 鏄熷彿銆傚湪 Objective-C 璿█涓紝瀵矽薄姘歌繙鏄€氳繃鎸囬拡鏉ュ紩鐢ㄧ殑銆傚鏋滅幇鍦ㄤ綘榪樹笉鑳芥槑鐧借繖鍙ヨ瘽鐨勬剰鎬濅篃涓嶅繀鎷呭績锛屽湪瀛︿細Objective-C 鍩虹涔嬪悗鍐嶇爺絀舵寚閽堜篃涓嶈繜銆傜幇鍦ㄤ綘闇€瑕佽浣忕殑锛屾槸鍦ㄩ潤鎬佺被鍨嬪彉閲忓０鏄庢椂锛屽彉閲忓悕縐板墠闈竴瀹氳鏈?* 鏄熷彿銆傝€屄爄d 綾誨瀷鍒欐殫紺哄畠鏄竴涓寚閽堛€?/p>

鏂規硶鍜屾秷鎭?/h3>

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鏂規硶鐨勫０鏄庣敱浠ヤ笅鍑犱釜閮ㄥ垎鏋勬垚锛氭柟娉曠被鍨嬫爣璿嗙锛岃繑鍥炵被鍨嬶紝涓€涓垨澶氫釜鏂規硶絳懼悕鍏抽敭瀛楋紝浠ュ強鍙傛暟綾誨瀷鍜屽悕縐般€備笅闈㈢殑鍥句腑鏄疄渚嬫柟娉暵爄nsertObject:atIndex: 鐨勫０鏄庤鍙ャ€?/p>

鍦ㄥ疄渚嬫柟娉曚腑锛屽０鏄庣殑寮€澶存槸涓€涓?鈥?鍑忓彿锛涜€屽０鏄庣被鏂規硶鏃跺墠闈㈣浣跨敤 + 鍔犲彿銆備笅鏂囩殑鈥滅被鏂規硶鈥濈珷鑺傚皢璿︾粏璁茶堪綾繪柟娉曠殑姒傚康銆?/p>

鏂規硶鐨勫悕縐幫紙insertObject:atIndex:锛夋槸涓€緋誨垪鏂規硶絳懼悕鍏抽敭璿嶈仈緇撹€屾垚锛屽寘鎷啋鍙楓€傚啋鍙瘋〃紺哄皢浼氬嚭鐜板弬鏁般€傚湪涓婇潰鐨勪緥瀛愪腑锛岃繖涓柟娉曞惈鏈変袱涓弬鏁般€傚鏋滄煇涓柟娉曟病鏈夊弬鏁幫紝鍒欓渶瑕佸皢絎竴涓紙涔熸槸鍞竴涓€涓級鏂規硶絳懼悕鍏抽敭璿嶅悗闈㈢殑鍐掑彿鐪佺暐鎺夈€?/p>

褰撲綘闇€瑕佽皟鐢ㄤ竴涓柟娉曟椂锛屽氨鏄鍚戝疄鐜頒簡璿ユ柟娉曠殑瀵矽薄鍙戦€佷竴涓秷鎭紝綆€鑰岃█涔嬶紝灝辨槸緇欏璞″彂閫佹秷鎭€傦紙鉶界劧鈥滃彂閫佹秷鎭€濆父甯哥敤浣溾€滆皟鐢ㄦ柟娉曗€濈殑榪戜箟璿嶏紝浣嗘槸鍦?Objective-C 鐨勮繍琛屾椂涓紝瀹為檯鎯呭喌鏄彂閫佹秷鎭€傦級涓€涓秷鎭氨鏄竴涓柟娉曠殑鍚嶅瓧甯︿笂璿ユ柟娉曟墍闇€鐨勫弬鏁頒俊鎭紙瑕佸拰鏁版嵁綾誨瀷姝ｇ‘瀵瑰簲锛夈€備綘鍚戝璞″彂閫佺殑鎵€鏈夋秷鎭兘鏄姩鎬佽皟搴︾殑锛屼互姝ゆ潵瀹炵幇 Objective-C 璿█鐨勫鎬佹€с€傦紙澶氭€佹€ф槸鎸囷細涓嶅悓綾誨瀷鐨勫璞￠兘鑳藉鍚屼竴縐嶆秷鎭仛鍑哄洖搴斻€傦級鏈夋椂锛屾墍璋冪敤鐨勬柟娉曟槸鐢辨帴鏀舵秷鎭殑瀵矽薄鐨勭被鐨勭埗綾誨疄鐜扮殑銆?/p>

瑕佽皟搴︿竴涓秷鎭紝榪愯鏃惰姹傛紜殑娑堟伅琛ㄨ揪鏂瑰紡銆?strong>娑堟伅琛ㄨ揪寮?/strong>鐢變竴瀵規柟鎷彿锛圼 鍜屄燷锛夋妸娑堟伅锛堜互鍙婃墍闇€鐨勫弬鏁幫級鍖呰９璧鋒潵锛屾帴鏀舵秷鎭殑瀵矽薄鍐欏湪宸﹁竟鎷彿鍚庤竟銆傛瘮濡傦紝瑕佸悜聽myArray 鍙橀噺鎵€鍚殑瀵矽薄鍙戦€佷竴涓爄nsertObject:atIndex: 娑堟伅锛屼綘瑕佹寜涓嬮潰鐨勮娉曡繘琛屼功鍐欙細

[myArray insertObject:anObject atIndex:0];

涓轟簡閬垮厤澹版槑澶ч噺灞€閮ㄥ彉閲忔潵瀛樺偍涓存椂緇撴灉锛孫bjective-C 鍏佽宓屽娑堟伅琛ㄨ揪寮忋€傛瘡涓祵濂楃殑琛ㄨ揪寮忚繑鍥炵殑鍊奸兘浼氫綔涓轟竴涓弬鏁幫紝鎴栬€呮帴鏀舵秷鎭殑瀵矽薄锛岀敋鑷蟲槸鍙︿竴涓秷鎭€傛瘮濡傦紝浣犲彲浠ュ皢涓婁竴涓緥瀛愪腑鐨勪換鎰忎竴涓彉閲忔浛鎹㈡垚鐢ㄦ秷鎭帴鏀舵暟鍊箋€傝繖鏍蜂竴鏉ワ紝濡傛灉浣犺繕鏈変竴涓彨鍋毬爉yAppObject 鐨勫璞★紝瀹冨惈鏈夎闂暟緇勫璞′互鍙婂皢瀵矽薄鎻掑靉鏁扮粍鐨勬柟娉曪紝浣犲彲浠ュ皢閭ｄ釜渚嬪瓙鏀歸€犳垚涓嬮潰榪欐牱锛?/p>

[[myAppObject theArray] insertObject:[myAppObject objectToInsert] atIndex:0];

Objective-C 榪樻彁渚涗簡鐐矽娉曠壒鎬э紝鐢ㄦ潵璁塊棶瀛樺彇鏂規硶銆?strong>瀛樺彇鏂規硶鏄璞＄殑 get 鍜?set 璿彞锛岃繖閲屾槸灝佽鐨勫叧閿紝灝佽鏄墍鏈夊璞＄殑閲嶈鐗規€с€傚璞℃妸鑷繁鐨勭姸鎬佸皝瑁咃紙鎴栭殣鈃忥級璧鋒潵锛屽苟鎻愪緵涓€涓兘璁╂墍鏈夊疄渚嬭闂繖涓姸鎬佺殑閫氱敤鎺ュ彛銆傚埄鐢ㄧ偣璿硶锛屼箣鍓嶇殑渚嬪瓙鍙堝彲浠ヨ鏀瑰啓鎴愶細

[myAppObject.theArray insertObject:myAppObject.objectToInsert atIndex:0];

鐐矽娉曡繕鍙互鐢ㄦ潵璧嬪€鹼細

myAppObject.theArray = aNewArray;

榪欎釜璿硶鍏跺疄鏄燵myAppObject setTheArray:aNewArray]; 榪欎釜璿彞鐨勫彠涓€縐嶈〃榪版柟寮忋€?/p>

鑰屼笖锛岃鍥炴兂涓€涓嬶紝鍦ㄢ€滀綘鐨勭涓€涓?iOS 搴旂敤鈥濇暀紼嬮噷锛屼綘宸茬粡鐢ㄨ繃鐐矽娉曟潵瀵瑰彉閲忚繘琛岃祴鍊間簡锛?/p>

self.userName = self.textField.text;

涓嬫枃涓殑鈥滃凡澹版槑鐨勫睘鎬у拰瀛樺彇鏂規硶鈥濈珷鑺傚皢鍚戜綘璿︾粏浠嬬粛瀛樺彇鏂規硶銆?/p>

綾繪柟娉?/strong>

鉶界劧涔嬪墠鐨勮寖渚嬮兘鏄悜綾葷殑瀹炰緥鍙戦€佹秷鎭紝浣嗕綘涔熷彲浠ュ悜綾昏嚜韜彂閫佹秷鎭€傦紙榪欓噷鐨勭被锛屽彲浠ヨ鐞嗚В涓虹敱榪愯鏃剁敓鎴愮殑聽綾?鐨勫璞°€傦級鍚戜竴涓被鍙戦€佹秷鎭椂锛岃鏂規硶蹇呴』鍦ㄤ箣鍓嶈澹版槑涓虹被鏂規硶锛岃€屼笉鏄疄渚嬫柟娉曘€傜被鏂規硶鍜?C++ 涓殑闈欐€佹柟娉曞緢鐩鎬技銆?/p>

浣犻€氬父浼氬皢綾繪柟娉曠敤浣滃伐鍘傛柟娉曪紝鍊熶互鍒涘緩璿ョ被鐨勬柊鐨勫疄渚嬫垨鑰呰闂笌璿ョ被鐩稿叧鐨勬煇浜涘叡鏈変俊鎭€傜被鏂規硶鐨勫０鏄庤娉曞拰瀹炰緥鏂規硶鐨勫嶮鍒嗙溮鍍忥紝涓嶅悓涔嬪鏄柟娉曠被鍨嬫爣璿嗙鏄竴涓?+ 鍔犲彿锛岃€屼笉鏄?鈥?鍑忓彿銆?/p>

涓嬮潰鐨勪緥瀛愬睍紺轟簡濡備綍鎶婁竴涓被鏂規硶褰撲綔璿ョ被鐨勫伐鍘傛柟娉曡繘琛岃皟鐢ㄣ€傚湪鏈緥涓紝array 鏂規硶鏄燦SArray 綾葷殑涓€涓被鏂規硶锛屽苟涓旇聽NSMutableArray 綾葷戶鎵褲€傚畠浼氱粰榪欎釜綾葷殑鏂板疄渚嬪垎閰嶅唴瀛樺苟灝嗚繖涓疄渚嬪垵濮嬪寲锛屾渶鍚庢妸瀹冭繑鍥炵粰浣犵殑浠ｇ爜銆?/p>

NSMutableArray *myArray = nil;聽 // nil 鏈川涓婄瓑鍚屼簬 NULL

// 鍒涘緩涓€涓柊鏁扮粍锛屽苟灝嗗叾璧嬪€肩粰 myArray 鍙橀噺銆?br> myArray = [NSMutableArray array];

宸插０鏄庣殑灞炴€у拰瀛樺彇鏂規硶

涓€涓睘鎬э紝鎸夐€氬父鐨勭悊瑙ｅ氨鏄璞″皝瑁呯殑鐘舵€侀噷鐨勪竴欏廣€傚畠瑕佷箞鏄竴涓壒鎬э紝姣斿鍚嶅瓧鎴栬€呴鑹詫紱瑕佷箞鏄笌鍙︿竴涓垨澶氫釜鍏朵粬瀵矽薄鐨勫叧鑱斻€傚璞＄殑綾誨畾涔変簡涓€涓帴鍙ｏ紝浣跨敤璿ュ璞＄殑鐢ㄦ埛鍙互鑾峰彇锛坓et锛夊拰璁劇疆锛坰et锛夊皝瑁呭睘鎬т腑鐨勬暟鍊箋€傝€屾墽琛岃繖涓姛鑳界殑鏂規硶灝卞彨鍋氬瓨鍙栨柟娉曘€?/p>

瀛樺彇鏂規硶鍏辨湁涓ょ锛屼笖閮借絎﹀悎涓€濂楀懡鍚嶈綰︺€傗€淕etter锛堝彇鍊煎櫒锛夆€濆瓨鍙栨柟娉曡兘澶熻繑鍥炴煇涓睘鎬х殑鍊鹼紝瀹冪殑鏂規硶鍚嶅拰璿ュ睘鎬у悓鍚嶃€傗€淪etter锛堣祴鍊煎櫒锛夆€濆瓨鍙栨柟娉曡兘澶熺粰鏌愪釜灞炴€ц祴浜堟柊鐨勫€鹼紝瀹冪殑鍛藉悕瑙勭害鏄爏et灞炴€у悕縐? 榪欐牱鐨勫艦寮忥紝灞炴€у悕縐扮殑棣栧瓧姣嶅ぇ鍐欍€傚湪 Objective-C 妗嗘灦涓紝鍙湁涓ユ牸鎸夌収瑙勭害瀵瑰瓨鍙栨柟娉曡繘琛屽懡鍚嶆墠鑳藉疄鐜板縐嶆妧鏈€?/p>

Objective-C 鎻愪緵浜?strong>宸插０鏄庣殑灞炴€?/strong>锛屽彲浠ヤ綔涓哄０鏄庣殑渚垮埄閫斿緞锛屾湁鏃惰繕鑳戒綔涓哄瓨鍙栨柟娉曠殑瀹炵幇銆傚湪鈥滀綘鐨勭涓€涓?iOS 搴旂敤鈥濇暀紼嬩腑锛屼綘鏇劇粡澹版槑浜喡爑serName 灞炴€э細

@property (nonatomic, copy) NSString *userName;

宸插０鏄庣殑灞炴€т嬌寰?getter 鍜?setter 鏂規硶鏃犻渶鍦ㄧ被閲屾樉寮忓０鏄庛€傜溮鍙嶏紝浣犲湪澹版槑灞炴€ф椂鍙互鍐衝畾鍏跺叿浣撹涓烘柟寮忥紝鐒跺悗瑕佹眰緙栬瘧鍣ㄥ熀浜庡睘鎬у０鏄庯紝鐢熸垚锛堟垨璿村壋寤猴級瀹為檯鍙敤鐨?getter 鍜?setter 鏂規硶銆傚凡澹版槑鐨勫睘鎬у噺灝戜簡澶ч噺涓嶅繀瑕佺殑浠ｇ爜锛岃妭鐪佸紑鍙戣€呯殑鏃墮棿锛屽苟涓旇浣犵殑浠ｇ爜鏇村姞娓呯埥銆佸噺灝戝嚭閿欑殑鍙兘銆?/p>

鍦ㄧ被鎺ュ彛鏂囦歡涓紝瑕佸寘鍚睘鎬у０鏄庡拰鏂規硶澹版槑銆傚熀鏈殑澹版槑瑕佷嬌鐢燖property聽緙栬瘧鍣ㄦ寚浠わ紝鍚庨潰鏄睘鎬х殑綾誨瀷鍜屽悕縐般€備綘榪樺彲浠ヤ負灞炴€ц瀹氫笉鍚岀殑閫夐」锛屼篃灝辨槸璿村彲浠ヨ皟鏁村瓨鍙栨柟娉曠殑鍏蜂綋琛屼負鏂瑰紡锛屾瘮濡傚睘鎬ф槸鍚︿負寮卞紩鐢紝鎴栬€呮槸鍚︿負鍙灞炴€с€傝繖浜溳€夐」鍐欏湪聽@property聽鎸囦護鍚庤竟鐨勫渾鎷彿涓€?/p>

涓嬭竟鐨勫嚑琛屼唬鐮佸睍紺轟簡鏇村灞炴€у０鏄庣殑渚嬪瓙锛?/p>

@property BOOL flag;聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 // 榛樿鏄彧澹版槑綾誨瀷鍜屽悕縐?br> @property (copy) NSString *nameObject;聽 // 鍦ㄨ祴鍊艱繃紼嬩腑鎷瘋礉瀵矽薄
@property (readonly) UIView *rootView;聽 // 鍙０鏄?getter 鏂規硶

鍦ㄧ被鐨勫疄鐜頒唬鐮佷腑锛屼綘瑕佷嬌鐢燖synthesize聽緙栬瘧鍣ㄦ寚浠ゆ潵瑕佹眰緙栬瘧鍣ㄦ牴鎹０鏄庣殑鎯呭喌锛岀敓鎴愬瓨鍙栨柟娉曪細

@synthesize flag;
@synthesize nameObject;
@synthesize rootView;

浣犱篃鍙互鎶娐燖synthesize聽璿彞鏀懼埌涓€琛岄噷闈細

@synthesize flag, nameObject, rootView;

鍦燖synthesize聽鎸囦護涓紝浣犺繕鍙互鍛戒護緙栬瘧鍣ㄦ坊鍔犵溮搴旂殑瀹炰緥鍙橀噺鍒扮被瀹氫箟涓幓銆傝澧炲姞涓€涓疄渚嬪彉閲忥紝鍦ㄥ睘鎬х殑鍚嶇О鍚庨潰鍐欎竴涓瓑鍙鳳紝鐒跺悗鍐欎綘鎯寵鐨勫疄渚嬪彉閲忓悕縐幫細

@synthesize nameObject=_nameObject;

鍧楀璞?/h3>

鍧楀璞?/strong>鏄皝瑁呬簡涓€緋誨垪鍔熻兘鐨勪竴涓璞★紝鎴栬€呮洿閫氫織鍦拌锛屽畠鏄竴涓唬鐮佺墖孌碉紝鑳藉鍦ㄤ換浣曟椂鍒昏鎵ц銆傚畠浠湰璐ㄤ笂灝辨槸鍙Щ妞嶇殑鍖垮悕鐨勫嚱鏁幫紝鍙互浣滀負鍏朵粬鏂規硶鐨勫弬鏁頒紶鍏ワ紝涔熷彲浠ヤ綔涓哄叾浠栨柟娉曟垨鍑芥暟鐨勮繑鍥炲€箋€傚潡瀵矽薄鏈韓鏈夊惈綾誨瀷鐨勫弬鏁拌〃锛屽彲鑳藉甫鏈変笉紜畾鐨勬垨宸插０鏄庣殑榪斿洖鍊肩被鍨嬨€備綘鍙互鎶婁竴涓潡瀵矽薄璧嬪€肩粰鏌愪釜鍙橀噺锛岀劧鍚庡湪浣犻渶瑕佺殑鏃跺€欏儚璋冪敤鍑芥暟涓€鏍瘋皟鐢ㄥ畠灝辮浜嗐€?/p>

鑴卞瓧絎︼紙^锛夋槸鍧楃殑璿硶鏍囪銆傝繕鏈夋寜鐓ф垜浠啛鎮夌殑鍙傛暟璿硶瑙勭害鎵€瀹氫箟鐨勮繑鍥炲€間互鍙婂潡瀵矽薄鐨勪富浣擄紙涔熷氨鏄彲浠ユ墽琛岀殑浠ｇ爜锛夈€備笅鍥炬槸濡備綍鎶婂潡瀵矽薄璧嬪€肩粰涓€涓彉閲忕殑璿硶璁茶В锛?/p>

鎺ヤ笅鏉ワ紝鎸夌収璋冪敤鍑芥暟鐨勬柟寮忚皟鐢ㄥ潡瀵矽薄鍙橀噺灝卞彲浠ヤ簡锛?/p>

int result = myBlock(4); // 緇撴灉鏄?28

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鍜屾柟娉曘€佸嚱鏁扮殑鍙傛暟綾諱技锛屽潡瀵矽薄鍙互琚綋浣滀竴涓洖璋冨嚱鏁般€傚綋鏂規硶鎴栧嚱鏁拌璋冪敤鏃訛紝瀹冧滑浼氭墽琛屾煇浜涘姛鑳斤紝騫跺湪鍚堥€傜殑鏃舵満鍥炶皟涔嬪墠璋冪敤瀹冧滑鐨勪唬鐮侊紙閫氳繃鍧楀璞★級锛屾潵璿鋒眰闄勫姞淇℃伅锛屾垨鑰呬粠涓幏鍙栫▼搴忕壒瀹氱殑琛屼負銆傚潡瀵矽薄璁╄皟鐢ㄨ€呰兘澶熷湪璋冪敤鐨勬椂鍊欐彁渚涘洖璋冧唬鐮併€傚潡瀵矽薄涓嶄細灝嗚姹傛暟鎹墦鍖呭埌涓€涓€滀笂涓嬫枃鈥濈粨鏋勪腑锛岃€屾槸浠庢柟娉曟垨鍑芥暟鐨勭溮鍚屼綔鐢ㄥ煙涓崟鑾鋒暟鎹€傜敱浜庡潡瀵矽薄浠ｇ爜鏃犻渶鍦ㄥ崟鐙殑鏂規硶鎴栧嚱鏁頒腑鍙﹀瀹炵幇锛屾墍浠ヤ綘鐨勫疄鐜頒唬鐮佽兘澶熷彉寰楁洿鍔犵畝媧侊紝鍙鎬ф洿寮恒€?/p>

Objective-C 妗嗘灦鏈夎澶氬甫鏈夊潡瀵矽薄鍙傛暟鐨勬柟娉曘€傛瘮濡傝繖孌碉紝鍦?UIKit 妗嗘灦閲屽０鏄庝簡濡備笅綾繪柟娉曪紝瀹冩湁涓や釜鍧楀璞″弬鏁幫細

+ (void)animateWithDuration:(NSTimeInterval)duration delay:(NSTimeInterval)delay options:(UIViewAnimationOptions)options animations:(void (^)(void))animations completion:(void (^)(BOOL finished))completion;

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[UIView animateWithDuration:0.2 animations:^{
聽 聽 view.alpha = 0.0;

聽 聽 } completion: ^(BOOL finished) {
聽 聽 if (finished == YES)
聽 聽 聽 聽 [view removeFromSuperview];
}];

鍗忚鍜岃寖鐣寸被

鍗忚鍙互鐢ㄦ潵澹版槑鑳藉鍦ㄤ換浣曠被涓疄鐜扮殑鏂規硶锛岀敋鑷抽偅浜涘疄鐜拌鏂規硶鐨勭被緇ф壙鑷埆鐨勭被銆傚崗璁柟娉曞畾涔夌殑琛屼負鏄嫭絝嬩簬浠諱綍涓€涓被鐨勩€傚崗璁彲浠ュ畾涔変竴涓姹傚叾浠栫被蹇呴』鎵胯瀹炵幇鐨勬帴鍙ｃ€備篃灝辨槸璿達紝濡傛灉浣犵殑綾誨疄鐜頒簡鍗忚涓殑鏂規硶锛岄偅涔堣繖涓被灝辨壙璿鴻瀹屾垚璿ュ崗璁€?/p>

浠庡疄鐢ㄧ殑瑙掑害璿存潵锛屽崗璁畾涔変簡涓€緋誨垪鏂規硶锛屽苟寤虹珛璧峰璞′箣闂寸殑鈥滃悎綰︹€濄€傝€岃繖浜涘璞′笉蹇呮槸浠諱綍涓€涓‘瀹氱殑綾葷殑瀹炰緥銆傝繖涓悎綰︿嬌寰楀璞′箣闂村彲浠ヨ繘琛屼氦嫻併€傛煇涓璞℃兂瑕佸憡璿夊彠涓€涓璞★紝椹笂灝嗚闈複鐨勪簨浠訛紝鎴栬€呮兂瑕佽闂叧浜庨偅浜涗簨浠剁殑寤鴻銆?/p>

UIApplication聽綾誨疄鐜頒簡鎵€闇€鐨勫簲鐢ㄨ涓恒€備綘涓嶅繀涓轟簡鎺ユ敹綆€鍗曠殑搴旂敤褰撳墠鐘舵€佺殑娑堟伅鑰屽壋寤轟竴涓燯IApplication聽鐨勫瓙綾匯€俇IApplication聽綾諱細璋冪敤鎸囧畾鐨勫鎵樺璞′腑鐨勭壒瀹氭柟娉曟潵浼犻€掗偅浜涙秷鎭€傚疄鐜頒簡聽UIApplicationDelegate聽鍗忚鏂規硶鐨勫璞″氨鑳藉鎺ユ敹鍒伴偅浜涙秷鎭簡锛屽苟涓旇兘澶熸彁渚涘悎閫傜殑鍙嶉銆?/p>

鍦ㄦ壙璿哄疄鐜般€佹垨閲囩敤鏌愪釜鍗忚鐨勬帴鍙ｄ唬鐮佷腑锛屽崗璁殑鍚嶇О瑕佸啓鍦ㄧ埗綾誨悕縐板悗杈圭殑涓€瀵瑰皷鎷彿閲岋紙<鈥?gt;锛夈€傚湪鈥滀綘鐨勭涓€涓?iOS 搴旂敤鈥濇暀紼嬮噷锛屼綘閲囩敤浜喡燯ITextFieldDelegate聽鍗忚锛?/p>

@interface HelloWorldViewController : UIViewController <UITextFieldDelegate> {
}
@end

鍦ㄥ疄鐜頒腑锛屼綘鏃犻渶澹版槑鍗忚鏂規硶銆?/p>

鍗忚鐨勫０鏄庣湅璧鋒潵鍜岀被鎺ュ彛寰堢溮浼鹼紝涓嶈繃涓嶅悓鐨勬槸鍗忚娌℃湁鐖剁被锛屽苟涓斾笉鍚換浣曞疄渚嬪彉閲忥紙浣嗗畠浠兘澶熷０鏄庡睘鎬э級銆備笅闈㈢殑渚嬪瓙灞曠ず濡備綍澹版槑鍙湁涓€涓柟娉曠殑綆€鍗曞崗璁細

@protocol MyProtocol
- (void)myProtocolMethod;
@end

瀵逛簬璁稿濮旀墭鍗忚鑰岃█锛岄噰鐢ㄤ竴涓崗璁氨絳変簬鏄疄鐜拌鍗忚涓畾涔夌殑鏂規硶銆傛湁浜涘崗璁姹備綘鏄庣‘澹版槑浣犱細鏀寔璿ュ崗璁紝鑰屾湁浜涘崗璁墶鏄棦鍖呭惈蹇呴』瀹炵幇鐨勬柟娉曪紝涔熷寘鍚彲閫夋柟娉曘€?/p>

褰撲綘鍦?Objective-C 妗嗘灦涓祻瑙堝ご鏂囦歡鏃訛紝浣犲緢蹇氨浼氱湅鍒扮被浼艱繖鏍風殑璿彞锛?/p>

@interface NSDate (NSDateCreation)

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棰勫畾涔夌被鍨嬪拰緙栫爜絳栫暐

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綾誨瀷銆佹弿榪板拰璿嶆眹锛?/strong>
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NSDate *dateOfHire = [employee dateOfHire];
if (dateOfHire != nil) {
聽 聽 // 澶勭悊姝ょ鎯呭喌
}

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NSDate *dateOfHire = [employee dateOfHire];
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