\ud50c\ub7ec\ud130\ub294 \ud06c\ub85c\uc2a4 \ud50c\ub7ab\ud3fc \uc560\ud50c\ub9ac\ucf00\uc774\uc158 \uac1c\ubc1c\uc744 \uc704\ud55c \uac15\ub825\ud55c \ub3c4\uad6c\ub85c, \uac1c\ubc1c\uc790\ub4e4\uc5d0\uac8c \ub9e4\uc6b0 \uc720\uc6a9\ud55c \uae30\ub2a5\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4. \ubcf8 \uac15\uc88c\uc5d0\uc11c\ub294 \ud50c\ub7ec\ud130\uc758 \uc911\uc694\ud55c \uc0dd\uba85\uc8fc\uae30 \uba54\uc11c\ub4dc \uc911 \ud558\ub098\uc778 \ud50c\ub7ec\ud130\uc5d0\uc11c \uc704\uc758 \uc608\uc2dc\uc5d0\uc11c \ub2e4\uc74c\uc740 \ud50c\ub7ec\ud130 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc744 \uac1c\ubc1c\ud560 \ub54c \uc608\uc678 \ucc98\ub9ac\ub294 \ub9e4\uc6b0 \uc911\uc694\ud569\ub2c8\ub2e4. \uc0ac\uc6a9\uc790 \uacbd\ud5d8\uc744 \ud5a5\uc0c1\uc2dc\ud0a4\uace0 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc758 \uc548\uc815\uc131\uc744 \ub192\uc774\ub294 \ub370 \uae30\uc5ec\ud569\ub2c8\ub2e4. \uc608\uc678 \ucc98\ub9ac\ub97c \ud1b5\ud574 \uac1c\ubc1c\uc790\ub294 \uc624\ub958 \ubc1c\uc0dd \uc2dc \uc801\uc808\ud55c \uc870\uce58\ub97c \ucde8\ud560 \uc218 \uc788\uc73c\uba70, \uc774\ub7ec\ud55c \uc624\ub958\ub97c \uc0ac\uc6a9\uc790\uc5d0\uac8c \uba85\ud655\ud788 \uc804\ub2ec\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n \uc608\uc678 \ucc98\ub9ac\ub294 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc774 \uc624\ub958\ub97c \uc778\uc2dd\ud558\uace0 \ub370\uc774\ud130\uac00 \uc798\ubabb\ub418\uc5c8\uc744 \ub54c \uc5b4\ub5bb\uac8c \ub300\ucc98\ud558\ub294\uc9c0\ub97c \uc815\uc758\ud569\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uacfc\uc815\uc740 \ub2e4\uc74c\uacfc \uac19\uc740 \ub2e8\uacc4\ub97c \ud3ec\ud568\ud569\ub2c8\ub2e4:<\/p>\n \ud50c\ub7ec\ud130\uc5d0\uc11c\ub294 \uc774\uc81c \uc5ec\ub7ec\ubd84\uc774 <\/body><\/p>\n","protected":false},"excerpt":{"rendered":"initState()<\/code> \uba54\uc11c\ub4dc\uc640 \uc608\uc678 \ucc98\ub9ac \ubc29\ubc95\uc5d0 \ub300\ud574 \uae4a\uc774 \uc788\uac8c \ud0d0\uad6c\ud558\uaca0\uc2b5\ub2c8\ub2e4. \uc774 \uc8fc\uc81c\ub294 \ud50c\ub7ec\ud130 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc758 \uc124\uacc4 \ubc0f \uac1c\ubc1c\uc5d0 \uc788\uc5b4 \ub9e4\uc6b0 \uc911\uc694\ud55c \uc694\uc18c\uc785\ub2c8\ub2e4.<\/p>\n1. initState() \uba54\uc11c\ub4dc\ub780?<\/h2>\n
initState()<\/code> \uba54\uc11c\ub4dc\ub294 StatefulWidget\uc758 \uc0dd\uba85\uc8fc\uae30\uc5d0\uc11c \uac00\uc7a5 \uba3c\uc800 \ud638\ucd9c\ub418\ub294 \uba54\uc11c\ub4dc\uc785\ub2c8\ub2e4. \uc774 \uba54\uc11c\ub4dc\ub294 \uc704\uc82f\uc774 \ucc98\uc74c \uc0dd\uc131\ub420 \ub54c \ud638\ucd9c\ub418\uba70, \uc0ac\uc6a9\uc790 \uc778\ud130\ud398\uc774\uc2a4\ub97c \ucd08\uae30\ud654\ud558\uace0 \ud544\uc694\ud55c \ub370\uc774\ud130\ub97c \ubd88\ub7ec\uc624\ub294 \ub4f1\uc758 \uc791\uc5c5\uc744 \uc218\ud589\ud558\ub294 \ub370 \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n1.1 initState\uc758 \ud2b9\uc9d5<\/h3>\n
\n
1.2 initState() \uba54\uc11c\ub4dc\uc758 \uc608\uc2dc<\/h3>\n
class MyHomePage extends StatefulWidget {\n @override\n _MyHomePageState createState() => _MyHomePageState();\n }\n\n class _MyHomePageState extends StateinitState()<\/code> \uba54\uc11c\ub4dc\ub294 StatefulWidget\uc758 \uc0c1\ud0dc\uac00 \ucd08\uae30\ud654\ub420 \ub54c \ud638\ucd9c\ub429\ub2c8\ub2e4. \uc774 \uba54\uc11c\ub4dc \ub0b4\ubd80\uc5d0\uc11c text<\/code> \ubcc0\uc218\uc758 \uac12\uc744 \uc124\uc815\ud558\uace0, \ucd08\uae30\ud654\uac00 \uc644\ub8cc\ub418\uc5c8\ub2e4\ub294 \uba54\uc2dc\uc9c0\ub97c \ucd9c\ub825\ud569\ub2c8\ub2e4.<\/p>\n2. initState() \uba54\uc11c\ub4dc\uc758 \uc5ed\ud560<\/h2>\n
initState()<\/code> \uba54\uc11c\ub4dc\ub294 \uc5ec\ub7ec \uac00\uc9c0 \uc5ed\ud560\uc744 \uc218\ud589\ud569\ub2c8\ub2e4:<\/p>\n\n
2.1 \uc608\uc2dc: \ub370\uc774\ud130 \ubd88\ub7ec\uc624\uae30<\/h3>\n
initState()<\/code>\ub97c \uc0ac\uc6a9\ud558\uc5ec \ub370\uc774\ud130\ub97c \ubd88\ub7ec\uc624\ub294 \uc608\uc785\ub2c8\ub2e4:<\/p>\nclass DataFetcher extends StatefulWidget {\n @override\n _DataFetcherState createState() => _DataFetcherState();\n }\n\n class _DataFetcherState extends State3. \uc608\uc678 \ucc98\ub9ac\uc758 \uc911\uc694\uc131<\/h2>\n
3.1 \uc608\uc678 \ucc98\ub9ac\uc758 \uae30\ubcf8 \uac1c\ub150<\/h3>\n
\n
3.2 \uc608\uc678 \ucc98\ub9ac \uad6c\ubb38<\/h4>\n
try-catch<\/code> \uad6c\ubb38\uc744 \uc774\uc6a9\ud558\uc5ec \uc608\uc678 \ucc98\ub9ac\ub97c \uc218\ud589\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub2e4\uc74c\uc740 \uadf8 \uc608\uc785\ub2c8\ub2e4:<\/p>\nvoid fetchData() async {\n try {\n \/\/ \ub370\uc774\ud130 \uc694\uccad \ucf54\ub4dc\n } catch (e) {\n print('\uc608\uc678 \ubc1c\uc0dd: $e');\n }\n }<\/code><\/pre>\n4. initState()\uc640 \uc608\uc678 \ucc98\ub9ac\uc758 \ud1b5\ud569<\/h2>\n
initState()<\/code> \ub0b4\uc5d0\uc11c \ube44\ub3d9\uae30 \uc791\uc5c5\uc744 \uc218\ud589\ud560 \ub54c \uc62c\ubc14\ub978 \uc608\uc678 \ucc98\ub9ac \ubc29\ubc95\uc744 \uc0ac\uc6a9\ud558\ub294 \uac83\uc774 \uc911\uc694\ud569\ub2c8\ub2e4. \uc774\ub97c \ud1b5\ud574 \ucd08\uae30\ud654 \uacfc\uc815\uc5d0\uc11c \ubc1c\uc0dd\ud560 \uc218 \uc788\ub294 \uc624\ub958\ub97c \uc801\uc808\ud788 \ucc98\ub9ac\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub2e4\uc74c\uc740 \ud1b5\ud569\ub41c \uc608\uc81c\uc785\ub2c8\ub2e4:<\/p>\nclass MyApp extends StatefulWidget {\n @override\n _MyAppState createState() => _MyAppState();\n }\n\n class _MyAppState extends State5. \ud568\uaed8\ud558\ub294 \uc2e4\uc2b5<\/h2>\n
initState()<\/code> \uba54\uc11c\ub4dc\ub97c \ud65c\uc6a9\ud558\uace0 \uc608\uc678 \ucc98\ub9ac\ub97c \uc801\uc6a9\ud558\uc5ec \uc2e4\uc81c Flutter \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc744 \ub9cc\ub4e4\uc5b4 \ubcf4\ub294 \uc2dc\uac04\uc744 \uac00\uc838\ubcf4\uaca0\uc2b5\ub2c8\ub2e4. \uc544\ub798\uc758 \ub2e8\uacc4\uc5d0 \ub530\ub77c \uc2e4\uc2b5\ud574\ubcf4\uc138\uc694:<\/p>\n\n
initState()<\/code>\ub97c \uad6c\ud604\ud569\ub2c8\ub2e4. \uc774\uc804 \uc608\uc81c\ub97c \ucc38\uace0\ud574 \uc8fc\uc138\uc694.<\/li>\n\uacb0\ub860<\/h2>\n
initState()<\/code> \uba54\uc11c\ub4dc\uc640 \uc608\uc678 \ucc98\ub9ac\ub294 \ud50c\ub7ec\ud130 \uac1c\ubc1c\uc5d0\uc11c \uc911\uc694\ud55c \ub450 \uac00\uc9c0 \uc694\uc18c\uc785\ub2c8\ub2e4. \uc704\uc82f\uacfc \uc0c1\ud0dc\ub97c \uad00\ub9ac\ud558\ub294 \ub370 \ud575\uc2ec\uc801\uc778 \uc5ed\ud560\uc744 \uc218\ud589\ud558\uba70, \uc0ac\uc6a9\uc790 \uacbd\ud5d8\uc744 \uac1c\uc120\ud558\ub294 \ub370 \uae30\uc5ec\ud569\ub2c8\ub2e4. \ubcf8 \uac15\uc88c\ub97c \ud1b5\ud574 initState()<\/code> \uba54\uc11c\ub4dc\uc758 \uc5ed\ud560\uacfc \uc608\uc678 \ucc98\ub9ac \ubc29\ubc95\uc744 \uc774\ud574\ud558\uace0, \uc774\ub97c \uc2e4\uc81c \ud504\ub85c\uc81d\ud2b8\uc5d0 \uc801\uc6a9\ud560 \uc218 \uc788\ub294 \ub2a5\ub825\uc744 \ud0a4\uc6b0\uae30 \ubc14\ub78d\ub2c8\ub2e4. \uc55e\uc73c\ub85c\ub3c4 \ud50c\ub7ec\ud130\uc758 \ub2e4\uc591\ud55c \uae30\ub2a5\uacfc \uae30\uc220\uc744 \ud0d0\uad6c\ud558\uba74\uc11c \ubb34\uad81\ubb34\uc9c4\ud55c \uac00\ub2a5\uc131\uc744 \ubc1c\uacac\ud558\uc2dc\uae38 \ubc14\ub78d\ub2c8\ub2e4.<\/p>\n