{"id":38157,"date":"2023-09-24T12:16:39","date_gmt":"2024-02-24T21:54:45","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%9c%a8react%e4%b8%ad%e4%bd%bf%e7%94%a8provider\/"},"modified":"2024-05-04T01:19:27","modified_gmt":"2024-05-03T17:19:27","slug":"%e5%9c%a8react%e4%b8%ad%e4%bd%bf%e7%94%a8provider","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%9c%a8react%e4%b8%ad%e4%bd%bf%e7%94%a8provider\/","title":{"rendered":"\u5728React\u4e2d\u4f7f\u7528Provider"},"content":{"rendered":"

\u9996\u5148<\/h2>\n

\u5982\u9898\u6240\u793a\uff0c\u6211\u4eec\u5c06\u5728React\u4e2d\u4f7f\u7528Provider\u3002<\/p>\n

\u4ea7\u7269<\/h3>\n
\"\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8<\/div>\n

\u8bbe\u8ba1 (sh\u00e8 j\u00ec)<\/h3>\n
\"IMG_0827.jpeg\"<\/div>\n

\u30fb\u5728\u7236\u7ec4\u4ef6\u4ee5\u4e0b\uff0c\u53ef\u4ee5\u66f4\u65b0\u9009\u9879\u5361\u7684\u4fe1\u606f\u3002
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\u6e90\u4ee3\u7801<\/h3>\n
import<\/span> {<\/span> Content<\/span> }<\/span> from<\/span> \"<\/span>.\/Content<\/span>\"<\/span>;<\/span>\r\nimport<\/span> {<\/span> Header<\/span> }<\/span> from<\/span> \"<\/span>.\/Header<\/span>\"<\/span>;<\/span>\r\nimport<\/span> {<\/span> TabProvider<\/span> }<\/span> from<\/span> \"<\/span>.\/TabContext<\/span>\"<\/span>;<\/span>\r\n\r\nconst<\/span> App<\/span>:<\/span> React<\/span>.<\/span>FC<\/span> =<\/span> ()<\/span> =><\/span> {<\/span>\r\n  return <\/span>(<\/span>\r\n    <<\/span>TabProvider<\/span>><\/span>\r\n      <<\/span>Header<\/span> \/><\/span>\r\n      <<\/span>Content<\/span> \/><\/span>\r\n    <\/<\/span>TabProvider<\/span>><\/span>\r\n  );<\/span>\r\n};<\/span>\r\n\r\nexport<\/span> default<\/span> App<\/span>;<\/span>\r\n\r\n<\/code><\/pre>\n
import<\/span> React<\/span>,<\/span> {<\/span> useState<\/span>,<\/span> createContext<\/span>,<\/span> useContext<\/span>,<\/span> ReactNode<\/span> }<\/span> from<\/span> \"<\/span>react<\/span>\"<\/span>;<\/span>\r\n\r\nexport<\/span> interface<\/span> TabContextType<\/span> {<\/span>\r\n  activeTab<\/span>:<\/span> number<\/span>;<\/span>\r\n  setActiveTab<\/span>:<\/span> (<\/span>index<\/span>:<\/span> number<\/span>)<\/span> =><\/span> void<\/span>;<\/span>\r\n}<\/span>\r\n\r\nexport<\/span> const<\/span> TabContext<\/span> =<\/span> createContext<\/span><<\/span>TabContextType<\/span> |<\/span> undefined<\/span>><\/span>(<\/span>undefined<\/span>);<\/span>\r\n\r\nexport<\/span> interface<\/span> TabProviderProps<\/span> {<\/span>\r\n  children<\/span>:<\/span> ReactNode<\/span>;<\/span>\r\n}<\/span>\r\n\r\nexport<\/span> const<\/span> TabProvider<\/span>:<\/span> React<\/span>.<\/span>FC<\/span><<\/span>TabProviderProps<\/span>><\/span> =<\/span> ({<\/span> children<\/span> })<\/span> =><\/span> {<\/span>\r\n  const<\/span> [<\/span>activeTab<\/span>,<\/span> setActiveTab<\/span>]<\/span> =<\/span> useState<\/span>(<\/span>0<\/span>);<\/span>\r\n\r\n  return <\/span>(<\/span>\r\n    <<\/span>TabContext<\/span>.<\/span>Provider<\/span> value<\/span>=<\/span>{<\/span>{<\/span> activeTab<\/span>,<\/span> setActiveTab<\/span> }<\/span>}<\/span>><\/span>\r\n      {<\/span>children<\/span>}<\/span>\r\n    <\/<\/span>TabContext<\/span>.<\/span>Provider<\/span>><\/span>\r\n  );<\/span>\r\n};<\/span>\r\n<\/code><\/pre>\n
import<\/span> {<\/span> useContext<\/span> }<\/span> from<\/span> \"<\/span>react<\/span>\"<\/span>;<\/span>\r\nimport<\/span> {<\/span> TabContext<\/span> }<\/span> from<\/span> \"<\/span>.\/TabContext<\/span>\"<\/span>;<\/span>\r\n\r\nconst<\/span> TABS<\/span> =<\/span> [<\/span>\"<\/span>Tab1<\/span>\"<\/span>,<\/span> \"<\/span>Tab2<\/span>\"<\/span>,<\/span> \"<\/span>Tab3<\/span>\"<\/span>,<\/span> \"<\/span>Tab4<\/span>\"<\/span>];<\/span>\r\n\r\nexport<\/span> const<\/span> Header<\/span>:<\/span> React<\/span>.<\/span>FC<\/span> =<\/span> ()<\/span> =><\/span> {<\/span>\r\n  const<\/span> context<\/span> =<\/span> useContext<\/span>(<\/span>TabContext<\/span>);<\/span>\r\n  if <\/span>(<\/span>!<\/span>context<\/span>)<\/span> {<\/span>\r\n    throw<\/span> new<\/span> Error<\/span>(<\/span>\"<\/span>Header must be used within a TabProvider<\/span>\"<\/span>);<\/span>\r\n  }<\/span>\r\n  const<\/span> {<\/span> activeTab<\/span>,<\/span> setActiveTab<\/span> }<\/span> =<\/span> context<\/span>;<\/span>\r\n\r\n  return <\/span>(<\/span>\r\n    <<\/span>div<\/span>><\/span>\r\n      {<\/span>TABS<\/span>.<\/span>map<\/span>((<\/span>tab<\/span>,<\/span> index<\/span>)<\/span> =><\/span> (<\/span>\r\n        <<\/span>button<\/span> key<\/span>=<\/span>{<\/span>index<\/span>}<\/span> onClick<\/span>=<\/span>{<\/span>()<\/span> =><\/span> setActiveTab<\/span>(<\/span>index<\/span>)<\/span>}<\/span>><\/span>\r\n          {<\/span>tab<\/span>}<\/span>\r\n        <\/<\/span>button<\/span>><\/span>\r\n      ))<\/span>}<\/span>\r\n    <\/<\/span>div<\/span>><\/span>\r\n  );<\/span>\r\n};<\/span>\r\n\r\n<\/code><\/pre>\n
import<\/span> {<\/span> useContext<\/span> }<\/span> from<\/span> \"<\/span>react<\/span>\"<\/span>;<\/span>\r\nimport<\/span> {<\/span> TabContext<\/span> }<\/span> from<\/span> \"<\/span>.\/TabContext<\/span>\"<\/span>;<\/span>\r\n\r\nexport<\/span> const<\/span> Content<\/span>:<\/span> React<\/span>.<\/span>FC<\/span> =<\/span> ()<\/span> =><\/span> {<\/span>\r\n  const<\/span> context<\/span> =<\/span> useContext<\/span>(<\/span>TabContext<\/span>);<\/span>\r\n  if <\/span>(<\/span>!<\/span>context<\/span>)<\/span> {<\/span>\r\n    throw<\/span> new<\/span> Error<\/span>(<\/span>\"<\/span>Content must be used within a TabProvider<\/span>\"<\/span>);<\/span>\r\n  }<\/span>\r\n  const<\/span> {<\/span> activeTab<\/span> }<\/span> =<\/span> context<\/span>;<\/span>\r\n\r\n  return <\/span>(<\/span>\r\n    <<\/span>div<\/span>><\/span>\r\n      {<\/span>activeTab<\/span> ===<\/span> 0<\/span> &&<\/span> <<\/span>div<\/span>><\/span>Content for Tab 1<\/<\/span>div<\/span>><\/span>}<\/span>\r\n      {<\/span>activeTab<\/span> ===<\/span> 1<\/span> &&<\/span> <<\/span>div<\/span>><\/span>Content for Tab 2<\/<\/span>div<\/span>><\/span>}<\/span>\r\n      {<\/span>activeTab<\/span> ===<\/span> 2<\/span> &&<\/span> <<\/span>div<\/span>><\/span>Content for Tab 3<\/<\/span>div<\/span>><\/span>}<\/span>\r\n      {<\/span>activeTab<\/span> ===<\/span> 3<\/span> &&<\/span> <<\/span>div<\/span>><\/span>Content for Tab 4<\/<\/span>div<\/span>><\/span>}<\/span>\r\n    <\/<\/span>div<\/span>><\/span>\r\n  );<\/span>\r\n};<\/span>\r\n\r\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
\u9996\u5148 \u5982\u9898\u6240\u793a\uff0c\u6211\u4eec\u5c06\u5728React\u4e2d\u4f7f\u7528Provider\u3002 \u4ea7\u7269 \u8bbe\u8ba1 (sh\u00e8 j\u00ec) \u30fb\u5728\u7236\u7ec4\u4ef6\u4ee5\u4e0b\uff0c\u53ef\u4ee5 […]<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-38157","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\n\u5728React\u4e2d\u4f7f\u7528Provider - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/\u5728react\u4e2d\u4f7f\u7528provider\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u5728React\u4e2d\u4f7f\u7528Provider\" \/>\n<meta property=\"og:description\" content=\"\u9996\u5148 \u5982\u9898\u6240\u793a\uff0c\u6211\u4eec\u5c06\u5728React\u4e2d\u4f7f\u7528Provider\u3002 \u4ea7\u7269 \u8bbe\u8ba1 (sh\u00e8 j\u00ec) \u30fb\u5728\u7236\u7ec4\u4ef6\u4ee5\u4e0b\uff0c\u53ef\u4ee5 […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/\u5728react\u4e2d\u4f7f\u7528provider\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - 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