1. Swiftãã¬ãŒã ã¯ãŒã¯ãšã¯?
Apple瀟ãéçºããå¿«éå¹æçãªããã°ã©ãã³ã°èšèªã§ããSwiftã¯ãiOSãmacOSãšãã£ãAppleã®ãã©ãããã©ãŒã åãã®ã¢ããªéçºã«ãããŠãããé«åºŠãªæ©èœãšæè»æ§ãæ±ããŠããŸãããã®è§£æ±ºçã®äžã€ãSwiftãã¬ãŒã ã¯ãŒã¯ã§ãã
å€ãã®éçºè ã¯ãã¬ãŒã ã¯ãŒã¯ã䜿çšããŠãã³ãŒãã£ã³ã°ã®æéãççž®ãããšã©ãŒãé²ãããšãã§ããŸããããã§ã¯ãå ·äœçã«Swiftãã¬ãŒã ã¯ãŒã¯ãšã¯äœãªã®ã§ããããã
æ¬ã»ã¯ã·ã§ã³ã§ã¯ãSwiftã®æŠèŠããSwiftãã¬ãŒã ã¯ãŒã¯ã®è©³çŽ°ã«ã€ããŠãåºæ¬çãªæ å ±ãæããã«ããŸãã
1.1 Swiftãšã¯
Swiftã¯ãApple Inc.ã«ãã£ãŠiOSãmacOSãwatchOSãtvOSã®ããã«éçºããã匷éãã€çŽæçãªããã°ã©ãã³ã°èšèªã§ããObjective-CãCèšèªãšã¯ç°ãªããSwiftã¯ã¢ãã³ãªããã°ã©ãã³ã°ãã©ãã€ã ãšAppleã®ããã©ãŒãã³ã¹èŠä»¶ãæºããããèšèšãããŠããŸãã
ã³ãŒãã®å®å šæ§ãšããœãããŠã§ã¢ã®å質ãæåªå ãããã®ã®äžã€ãSwiftã§ããSwiftã¯åå®å šã§ãããã³ã³ãã€ã«æã«ãšã©ãŒãæ€åºãããããã°ã容æã«ããŸãã
ãŸããSwiftã¯ã¹ã¯ãªããèšèªãšããŠã®å©äŸ¿æ§ããããŠã·ã¹ãã ããã°ã©ãã³ã°èšèªãšããŠã®ãã¯ãŒãå ŒãåããŠãããåºç¯ãªã¹ã±ãŒã©ããªãã£ãæäŸããŸãã
1.2 ãã¬ãŒã ã¯ãŒã¯ãšã¯
ãã¬ãŒã ã¯ãŒã¯ã¯äžèšã§èšããšããœãããŠã§ã¢éçºã®ããã®ãæ çµã¿ãã§ããããã¯ãé »ç¹ã«äœ¿çšãããè€éãªã¿ã¹ã¯ãç°¡ç¥åããéçºããã»ã¹ãå éããŸãã
ãã¬ãŒã ã¯ãŒã¯ã¯é©æ°çãªã¢ã€ãã¢ãå ·çŸåããŸããããã¯ãç¹å®ã®åé¡ã解決ããããã®åå©çšå¯èœãªã³ãŒããã©ã€ãã©ãªããŸãã¯ãã¶ã€ã³ãã¿ãŒã³ã§æ§æãããŠããŸãã
ããã¯éçºè éã«äžè²«ããåºç€ãæäŸããåçºæã®è»èŒªãåãããšãªããæ¬è³ªçã§éèŠãªã¿ã¹ã¯ã«éäžããããšãå¯èœã«ããŸãã
1.3 Swiftãã¬ãŒã ã¯ãŒã¯ã®æŠèŠ
Swiftãã¬ãŒã ã¯ãŒã¯ã¯ãSwiftããŒã¹ã®ã¢ããªã±ãŒã·ã§ã³éçºãååããããã®æ§ã ãªããŒã«ãšã©ã€ãã©ãªã§æ§æãããŠããŸããã·ã³ã¿ãã¯ã¹ã®æ確ããããã©ãŒãã³ã¹ã®æé©åãªã©ãSwiftèšèªã®ç¹æ§ããã«ã«æŽ»ãããŠèšèšãããŠããŸãã
Swiftãã¬ãŒã ã¯ãŒã¯ã¯ãªãŒãã³ãœãŒã¹ã§ããã®ã³ãã¥ããã£ã¯æ¬æ Œçã§æŽ»çºã§ãããã®çµæãæ§ã ãªãã¬ãŒã ã¯ãŒã¯ãååšãããããããç¹å®ã®ããŒãºã«å¯Ÿå¿ããããŒã«ãšæ©èœãæäŸããŸãã
äžè¬çã«ãSwiftãã¬ãŒã ã¯ãŒã¯ã¯ããŒã¿ç®¡çããããã¯ãŒãã³ã°ããŠãŒã¶ãŒã€ã³ã¿ãŒãã§ãŒã¹èšèšãç»ååŠçãªã©ãiOSãmacOSã¢ããªã±ãŒã·ã§ã³ã«å¿ èŠãªå€ãã®åºæ¬çãªæ©èœãæäŸããŸãã
1.4 Swiftãã¬ãŒã ã¯ãŒã¯ã®ç¹æ§
Swiftãã¬ãŒã ã¯ãŒã¯ã¯ãã¢ããªã®éçºãšä¿å®ã®ããã®æéãšåŽåã®åæžãå®çŸããŸããSwiftãã¬ãŒã ã¯ãŒã¯ã¯ãããç°¡åã§å¹æçãªã³ãŒãã£ã³ã°ãå®çŸããŸãã
Swiftãã¬ãŒã ã¯ãŒã¯ã®ç¹æ§ãšããŠéèŠãªãã®ã¯ãåå©çšå¯èœãªã³ãŒããã³ã³ããŒãã³ãéã®ççµåããã¹ãããããããããŠçµã¿èŸŒã¿ã®ã»ãã¥ãªãã£æ©èœã§ãã
Swiftãã¬ãŒã ã¯ãŒã¯ã¯ãè¿å¹Žçã å€ãã®éçºè ãšçµç¹ããéžã°ããŠããŸãããã®èŠå ã¯ãã³ãŒãã®å質åäžãéçºæéã®åæžãä¿å®æ§ã®åäžãªã©ãã¢ããªã±ãŒã·ã§ã³éçºã®å šäœçãªå¹çåã«å€§ããè²¢ç®ããŠããããã§ãã
2. Swiftãã¬ãŒã ã¯ãŒã¯ã®ã¡ãªãã
Swiftãã¬ãŒã ã¯ãŒã¯ã¯ãSwiftãšããçŸä»£ã®ããã°ã©ãã³ã°èšèªã掻çšããŠãiOS, MacOS, watchOS, tvOSãšãã£ãAppleã®ãã©ãããã©ãŒã äžã§ã¢ããªã±ãŒã·ã§ã³ãéçºããéã®éªšæ Œãšãªããã®ã§ããããã§ã¯ãSwiftãã¬ãŒã ã¯ãŒã¯ãå°å ¥ããããšã§åŸãããäž»ãªã¡ãªããã«ã€ããŠè©³ããèŠãŠã¿ãŸãããã
2.1 éçºã¹ããŒãã®åäž
Swiftãã¬ãŒã ã¯ãŒã¯ãéžæããæ倧ã®çç±ã®äžã€ã¯ããã®éçºã¹ããŒãã®åäžã«ãããŸãããã¬ãŒã ã¯ãŒã¯èªäœãéçºè ã«æäŸããåçš®æ©èœãšã³ãŒãã®äžéšãæ¢ã«åããŠãããããã³ãŒãã£ã³ã°ã®æéãå€§å¹ ã«åæžããããšãå¯èœãšãªããŸãã
ãŸããSwiftèªäœãå®å šæ§ãšå¹çæ§ãéèŠããèšèªã®ããã«ãã°ããšã©ãŒãäœæžãããªãããè¿ éã«ã¢ããªã±ãŒã·ã§ã³ãéçºããããšãã§ããŸãã
ãããã¯ãç¹ã«ãããžã§ã¯ãã®ã¿ã€ããªã¹ã±ãžã¥ãŒã«ãäºç®ã®å¶éãããå Žåã«ã¯éåžžã«éèŠãããå©ç¹ã§ãã
2.2 é«å質ãªã¢ããªã±ãŒã·ã§ã³éçº
Swiftãã¬ãŒã ã¯ãŒã¯ã䜿çšããããšã§ããã€ã¯ãªãªãã£ãªã¢ããªã±ãŒã·ã§ã³ãéçºããããšãã§ããŸããããã¯ããã¬ãŒã ã¯ãŒã¯ãæäŸããèšèšãã¿ãŒã³ããã¹ããã©ã¯ãã£ã¹ã«ãããå®å šæ§ãšå¹çæ§ã確ä¿ããªããã³ãŒããæžãããšãã§ããããã§ãã
ãŸãããã¬ãŒã ã¯ãŒã¯ã®äœ¿çšã«ãããã¢ããªã±ãŒã·ã§ã³ã®æ§é ãèšèšãæŽçãããã³ãŒãã®ã¡ã³ããã³ã¹ããããã°ã容æã«ãªããšããå©ç¹ããããŸãã
ãããäžé£ã®èŠçŽ ã¯ããã®çµæãšããŠãå質ã®é«ãã¢ããªã±ãŒã·ã§ã³ãäœãåºãããã®ã¬ãŒã«ãæ·ã圹å²ãæãããŸãã
2.3 ããŒã éçºãžã®å¯Ÿå¿
Swiftãã¬ãŒã ã¯ãŒã¯ã§ã¯ãéçºãããžã§ã¯ãã«ãããããŒã ã¯ãŒã¯ãåäžãããããšãå¯èœã§ããçµ±äžçãªã¢ãŒããã¯ãã£ãšãã¬ãŒã ã¯ãŒã¯ã§å®ããããã³ãŒãã£ã³ã°èŠçŽã«ãããè€æ°ã®éçºè ãå ±åã§äœæ¥ãè¡ã£ãŠãç解ããããããã³ãŒããšãªããŸãã
ããŒã å šäœã§ãã¬ãŒã ã¯ãŒã¯ã®å©çšãéããŠãã³ãŒãã®èªã¿ããããšä¿å®æ§ãåäžãããããšã§ãå šäœã®éçºå¹çãšããŒã ã¯ãŒã¯ã«å¥œåœ±é¿ãäžããŸãã
ããã«ãããåã ã®éçºè ãç¬èªã®éçºã¹ã¿ã€ã«ãæã€ããšãªããçµç¹å šäœãšããŠå¹ççã«äœæ¥ãé²ããããšãå¯èœã«ãªããŸãã
2.4 åå©çšæ§ãšæ¡åŒµæ§
Swiftãã¬ãŒã ã¯ãŒã¯ã®é åçãªç¹åŸŽã®äžã€ã«ããã®åå©çšæ§ãšæ¡åŒµæ§ããããŸãããã®ç¹åŸŽã«ããããã¬ãŒã ã¯ãŒã¯ã§æäŸãããæ©èœãã³ãŒããåå©çšããæ°ããªæ©èœãè¿œå ããããšã容æã«ãªããŸãã
ç¹ã«ãSwiftãã¬ãŒã ã¯ãŒã¯ã¯ããããããèšèšãããæ±çšçãªã³ã³ããŒãã³ãã掻çšããããšã§ãåæ§ã®æ©èœãæã€ç°ãªãã¢ããªã±ãŒã·ã§ã³ãå¹çè¯ãéçºããããšãå¯èœã§ãã
ããã«ããã¬ãŒã ã¯ãŒã¯ã®æ¡åŒµæ§ã«ãããéçºãè¡ãéã«æªæ¥ã®æ¡å€§ãå€æŽãžã®é©å¿æ§ãä¿ã€ããšãã§ããé·æçãªèŠç¹ã§ã®éçºå¹çãã¢ããªã±ãŒã·ã§ã³ã®å¯¿åœãå€§å¹ ã«åäžãããããšãã§ããŸãã
3. Swiftãã¬ãŒã ã¯ãŒã¯ã®ãã¡ãªãã
Swiftãã¬ãŒã ã¯ãŒã¯ã«ãããã®äŸ¿å©ããšåŒãæãã«ããã€ãã®ãã¡ãªãããååšããŸãã以äžã§ã¯ããããã®ãã¡ãªããã«ã€ããŠè©³ããæãäžããŠãããŸãã
ãããã®ãã¡ãªãããç解ããäžã§Swiftãã¬ãŒã ã¯ãŒã¯ãé©çšãããã©ãããå€æããããšããè¯ãã¢ããªéçºã«ç¹ãããŸãã
ç¹ã«ãåŠç¿ã³ã¹ããå¶çŽã®å€ããé©çšç¯å²ãšéå®æ§ãããŒãžã§ã³ã¢ãããžã®å¯Ÿå¿ãšãã£ããã€ã³ãã«ã¯æ³šæãå¿ èŠã§ãã
3.1 åŠç¿ã³ã¹ã
åŠç¿ã³ã¹ãã¯ãSwiftãã¬ãŒã ã¯ãŒã¯ã®å€§ããªãã¡ãªããã®äžã€ã§ããæ°ããæè¡ãåŠã¶ãšããããšã¯ãããã ãæéãšãšãã«ã®ãŒãå¿ èŠãšããããšãæå³ããŸãã
ç¹ã«ããã¬ãŒã ã¯ãŒã¯ã¯åãªãèšèªä»¥äžã«æœè±¡çãªã³ã³ã»ãããå€ãåãå ¥ããããŠãããããç解ãããŸã§ã«æéããããããšãå€ãã§ãã
ããããäžåºŠåŠç¿ããã°ããã®åŸã®éçºå¹çãæ Œæ®µã«åäžããŸããããã¯æã«ã¯ãã¡ãªãããšããªãåŸãäºé¢æ§ãæã€ç¹ãç解ããŠããããšãæ±ããããŸãã
3.2 å¶çŽã®å€ã
å¶çŽã®å€ããSwiftãã¬ãŒã ã¯ãŒã¯ã®ãã¡ãªãããšããŠæããããŸããããã¯ãç¬èªã®éçºã¹ã¿ã€ã«ãèšèšææ³ããã人ã«ãšã£ãŠã¯ç¹ã«åŒ·ããã¡ãªãããšãªãåŸãŸãã
ãã¬ãŒã ã¯ãŒã¯ã¯ãã®æ§è³ªäžãäžå®ã®ã«ãŒã«ã«åŸãããšãåæãšããŠããŸãããã®ã«ãŒã«ãéçºè ã®èªç±åºŠãçããæè»æ§ãæãªãããšãããã®ã§ãã
ããããåæã«ãã¬ãŒã ã¯ãŒã¯ã®ã«ãŒã«ã¯ãã³ãŒãã®äžè²«æ§ãä¿å®æ§ã確ä¿ããããã®éèŠãªååšã§ããããŸããå¶çŽã®å€ãã¯æ£ã«ã¡ãªããã§ããããã¡ãªããã§ããããšèšããã§ãããã
3.3 é©çšç¯å²ãšéå®æ§
次ã«ãé©çšç¯å²ãšéå®æ§ã«ã€ããŠã§ããSwiftãã¬ãŒã ã¯ãŒã¯ã¯ãäž»ã«iOSã¢ããªéçºã«ç¹åããŠããããããã®çšéã¯éå®çã§ãã
ããã¯ãç°ãªããã©ãããã©ãŒã åãã®éçºã«å©çšããããšãé£ãããšãããã¡ãªããããããããŸãã
ããããiOSã¢ããªéçºã«ãã£ãŒãã£ãŒãããã®æ©èœãæ倧éã«æŽ»çšããããšã§ãéåžžã«å¹ççãªéçºäœéšãæäŸããããšãã§ããŸãã
3.4 ããŒãžã§ã³ã¢ãããžã®å¯Ÿå¿
æåŸã«ãããŒãžã§ã³ã¢ãããžã®å¯Ÿå¿ãSwiftãã¬ãŒã ã¯ãŒã¯ã®ãã¡ãªãããšèšããã§ãããããã¬ãŒã ã¯ãŒã¯ã¯é »ç¹ã«æŽæ°ãããããã«åãããŠãããžã§ã¯ããæŽæ°ããå¿ èŠããããŸãã
ãã®äœæ¥ã¯ãåçŽã§ãããšã¯èšããããŸãããã«ããæ°ããªãã°ãçããå¯èœæ§ããããŸãã
ããããå®éã«ã¯ããŒãžã§ã³ã¢ããã«å¯Ÿå¿ããããšã§ãæ°æ©èœã掻çšããæ©äŒãåŸãããæŽã«è³ªã®é«ãã¢ããªã±ãŒã·ã§ã³éçºãå¯èœã«ãªããŸãã
4. Swiftãã¬ãŒã ã¯ãŒã¯ã®éžã³æ¹
Swiftãã¬ãŒã ã¯ãŒã¯ãéžã¶éã«èæ ®ãã¹ããã€ã³ãã4ã€ã«åããŠè§£èª¬ããŸããããããã¯éçºç®çãšã®ãããã³ã°ãéçºç°å¢ãšã®äºææ§ãã³ãã¥ããã£ãšããã¥ã¡ã³ããŒã·ã§ã³ããããŠä¿¡é Œæ§ãšç¶ç¶æ§ã§ãã
ãããã®ãã€ã³ããææ¡ããããããã«ã€ããŠæ€èšããããšããèªèº«ã®ãããžã§ã¯ãã«æé©ãªSwiftãã¬ãŒã ã¯ãŒã¯ãéžæããäžã§éèŠãšãªããŸãã
以äžã4ã€ã®ãã€ã³ãã詳ããèŠãŠãããŸãããã
4.1 éçºç®çãšã®ãããã³ã°
æåã®ãã€ã³ãã¯ãããã¬ãŒã ã¯ãŒã¯ãããªãã®éçºç®çãšãããããŠãããã©ãããã確èªããããšã§ãããã¹ãŠã®ãã¬ãŒã ã¯ãŒã¯ãå šãŠã®ã¿ã€ãã®ã¢ããªã±ãŒã·ã§ã³éçºã«é©ããŠããããã§ã¯ãããŸããã
äŸãã°ãäœãç¹å®ã®UIèŠçŽ ã匷調ããŠå±ç€ºãããå Žåããããã¯æè»ãªãããã¯ãŒãã³ã°æ©èœãå¿ èŠãªå Žåãªã©ãç®çã«å¿ããŠãã¬ãŒã ã¯ãŒã¯ãéžã¶å¿ èŠããããŸãã
éçºãããã¢ããªã®èŠä»¶ãæ確ã«ããããã«æãé©ããŠãããã¬ãŒã ã¯ãŒã¯ãéžæããããå¿ãããŸãããã
4.2 éçºç°å¢ãšã®äºææ§
次ã«èæ ®ããã¹ãã¯ãéžæãããã¬ãŒã ã¯ãŒã¯ãéçºç°å¢ãšé©åã«åäœãããã©ããã§ãããã¹ãŠã®ãã¬ãŒã ã¯ãŒã¯ãå šãŠã®éçºç°å¢ãšäºææ§ãããããã§ã¯ãããŸããã
äŸãã°ãç¹å®ã®ããŒãžã§ã³ã®Xcodeãç¹å®ã®OSã®ããŒãžã§ã³ãšã®äºææ§ãªã©ãç°å¢èŠä»¶ã確èªããããšãéèŠãšãªããŸãã
ãŸããéçºç°å¢ã«å¿ èŠãªãªãœãŒã¹ããã¬ãŒã ã¯ãŒã¯ãååã«å©çšã§ãããã©ããã確èªããŠãã ãããããã«ã¯ãã¡ã¢ãªäœ¿çšéãCPU䜿çšçãªã©ãå«ãŸããŸãã
4.3 ã³ãã¥ããã£ãšããã¥ã¡ã³ããŒã·ã§ã³
Swiftãã¬ãŒã ã¯ãŒã¯ã®éžææã«ã¯ããã®ãã¬ãŒã ã¯ãŒã¯ã«é¢ããã³ãã¥ããã£ã®æŽ»çºããããã¥ã¡ã³ããŒã·ã§ã³ã®å å®åºŠãéèŠãªèŠçŽ ãšãªããŸãã
掻çºãªã³ãã¥ããã£ã¯ãåé¡è§£æ±ºã®ããã®è±å¯ãªãªãœãŒã¹ãæäŸããŠãããŸãããŸããè¯å¥œãªããã¥ã¡ã³ããŒã·ã§ã³ã¯ããã¬ãŒã ã¯ãŒã¯ã®åŠç¿ãåé¡è§£æ±ºãããã¹ã ãŒãºã«é²ããããšãå¯èœã«ããŸãã
ããæŽåãããããã¥ã¡ã³ããŒã·ã§ã³ãšã¢ã¯ãã£ããªã³ãã¥ããã£ã¯ãããªããåºäŒã£ãåé¡ãæ©æã«è§£æ±ºããããã®éµãšãªãã§ãããã
4.4 ä¿¡é Œæ§ãšç¶ç¶æ§
æåŸã®éèŠãªãã€ã³ãã¯ããã¬ãŒã ã¯ãŒã¯ã®ä¿¡é Œæ§ãšç¶ç¶æ§ã§ãããã¬ãŒã ã¯ãŒã¯ãä¿¡é Œã§ãããœãŒã¹ããæäŸãããŠãããã©ãããæŽæ°ãç¶ããããŠãããã©ããã確èªããããšãå¿ èŠã§ãã
ä¿¡é Œã§ãããã¬ãŒã ã¯ãŒã¯ã¯ããã°ã®ä¿®æ£ãæ°æ©èœã®è¿œå ãå®æçã«è¡ãããç¶ç¶çã«ãµããŒããæäŸããããããé·æçãªãããžã§ã¯ãã§ãå®å¿ããŠäœ¿çšããããšãã§ããŸãã
ãŸãããã¬ãŒã ã¯ãŒã¯ã®äœ¿çšè ãå€ããã°å€ãã»ã©ããã®ãã¬ãŒã ã¯ãŒã¯ãæã€åé¡ã®è§£æ±ºçãèŠã€ããããããšããã¡ãªããããããŸããã€ãŸããããå€ãã®ãŠãŒã¶ãŒãšç¶ç¶çãªãµããŒãããããã¬ãŒã ã¯ãŒã¯ãéžã³ãŸãããã
5. Swiftãã¬ãŒã ã¯ãŒã¯ã®æŽ»çšæ³
Swiftã®ãã¬ãŒã ã¯ãŒã¯ã¯ãã³ãŒãã®åå©çšæ§ãé«ããŠãããžã§ã¯ãã®éçºå¹çãåäžãããéçºã®å質ãåäžããã圹å²ãæãããŸãããããããã®å šãŠã®æ©èœãç解ããé©åã«äœ¿çšããã«ã¯äžå®ã®çµéšãç¥èãå¿ èŠã§ãã
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5.3 FAQãšãã©ãã«ã·ã¥ãŒãã£ã³ã°
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