{"id":4726,"date":"2021-12-25T19:15:44","date_gmt":"2021-12-25T11:15:44","guid":{"rendered":"http:\/\/123.57.164.21\/?p=4726"},"modified":"2021-12-27T22:01:24","modified_gmt":"2021-12-27T14:01:24","slug":"%e6%8e%8c%e6%8f%a1-swiftui-%e7%9a%84-safe-area","status":"publish","type":"post","link":"https:\/\/92it.top\/?p=4726","title":{"rendered":"\u638c\u63e1 SwiftUI \u7684 Safe Area"},"content":{"rendered":"\n

\u8f6c\u8f7d\uff1ahttps:\/\/www.fatbobman.com\/posts\/safeArea\/<\/p>\n\n\n\n

Safe Area\uff08\u5b89\u5168\u533a\u57df\uff09\u662f\u6307\u4e0d\u4e0e\u5bfc\u822a\u680f\u3001\u6807\u7b7e\u680f\u3001\u5de5\u5177\u680f\u6216\u5176\u4ed6\u89c6\u56fe\u63a7\u5236\u5668\u63d0\u4f9b\u7684\u89c6\u56fe\u91cd\u53e0\u7684\u5185\u5bb9\u7a7a\u95f4\u3002<\/p>\n\n\n\n

\u5728 UIKit \u4e2d\uff0c\u5f00\u53d1\u8005\u9700\u8981\u5229\u7528 safeAreaInsets \u6216 safeAreaLayoutGuide \uff0c\u624d\u80fd\u786e\u4fdd\u5c06\u89c6\u56fe\u653e\u7f6e\u5728\u754c\u9762\u4e2d\u7684\u53ef\u89c1\u90e8\u5206\u3002<\/p>\n\n\n\n

SwiftUI \u5bf9\u4e0a\u8ff0\u8fc7\u7a0b\u8fdb\u884c\u4e86\u5f7b\u5e95\u7684\u7b80\u5316\u3002\u9664\u975e\u5f00\u53d1\u8005\u660e\u786e\u8981\u6c42\u89c6\u56fe\u7a81\u7834\u5b89\u5168\u533a\u57df\u7684\u9650\u5236\uff0c\u5426\u5219 SwfitUI \u5c06\u5c3d\u529b\u786e\u4fdd\u5f00\u53d1\u8005\u521b\u5efa\u7684\u89c6\u56fe\u90fd\u88ab\u5e03\u5c40\u5230\u5b89\u5168\u533a\u57df\u5f53\u4e2d\u3002SwiftUI \u540c\u65f6\u63d0\u4f9b\u4e86\u4e00\u4e9b\u65b9\u6cd5\u548c\u5de5\u5177\u8ba9\u5f00\u53d1\u8005\u5bf9\u5b89\u5168\u533a\u57df\u6709\u6240\u63a7\u5236\u3002<\/p>\n\n\n\n

\u672c\u6587\u5c06\u63a2\u8ba8\u5982\u4f55\u5728 SwiftUI \u4e2d\u83b7\u53d6 SafeAreaInsets\u3001\u5c06\u89c6\u56fe\u7ed8\u5236\u5230\u5b89\u5168\u533a\u57df\u4e4b\u5916\u3001\u4fee\u6539\u89c6\u56fe\u7684\u5b89\u5168\u533a\u57df\u7b49\u5185\u5bb9\u3002<\/p>\n\n\n\n

\u5982\u4f55\u83b7\u53d6 SafeAreaInsets<\/h5>\n\n\n\n
\n\n\n\n

\u4ec0\u4e48\u662f SafeAreaInsets<\/strong><\/p>\n\n\n\n

\u5bf9\u4e8e\u6839\u89c6\u56fe\u6765\u8bf4\uff0csafeAreaInsets \u53cd\u6620\u7684\u662f\u72b6\u6001\u680f\u3001\u5bfc\u822a\u680f\u3001\u4e3b\u9875\u63d0\u793a\u5668\u4ee5\u53ca TabBar \u7b49\u5728\u5404\u4e2a\u8fb9\u7684\u5360\u7528\u6570\u503c\u3002\u5bf9\u4e8e\u89c6\u56fe\u5c42\u6b21\u4e0a\u7684\u5176\u4ed6\u89c6\u56fe\uff0csafeAreaInesets \u53ea\u53cd\u6620\u89c6\u56fe\u4e2d\u88ab\u8986\u76d6\u7684\u90e8\u5206\u3002\u5982\u679c\u4e00\u4e2a\u89c6\u56fe\u53ef\u4ee5\u5b8c\u6574\u5730\u653e\u7f6e\u5728\u7236\u89c6\u56fe\u7684\u5b89\u5168\u533a\u57df\u4e2d\uff0c\u8be5\u89c6\u56fe\u7684 safeAreaInsets \u4e3a 0\u3002\u5f53\u89c6\u56fe\u5c1a\u672a\u5728\u5c4f\u5e55\u4e0a\u53ef\u89c1\u65f6\uff0c\u8be5\u89c6\u56fe\u7684 safeAreaInset \u4e5f\u4e3a 0 \u3002<\/p>\n\n\n\n

\u5728 SwiftUI \u4e2d\uff0c\u5f00\u53d1\u8005\u901a\u5e38\u53ea\u6709\u5728\u9700\u8981\u83b7\u53d6 StatusBar + NavBar \u7684\u9ad8\u5ea6\u6216 HomeIndeicator + TabBar \u7684\u9ad8\u5ea6\u65f6\u624d\u4f1a\u4f7f\u7528\u5230 safeAreaInsets \u3002<\/p>\n\n\n\n

\u4f7f\u7528 GeometryReader \u83b7\u53d6<\/strong><\/p>\n\n\n\n

GeometryProxy \u63d0\u4f9b\u4e86 safeAreaInsets \u5c5e\u6027\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u901a\u8fc7 GeometryReader \u83b7\u53d6\u89c6\u56fe\u7684 safeAreaInsets\u3002<\/p>\n\n\n\n

struct SafeAreaInsetsKey: PreferenceKey {\n    static var defaultValue = EdgeInsets()\n    static func reduce(value: inout EdgeInsets, nextValue: () -> EdgeInsets) {\n        value = nextValue()\n    }\n}\n\nextension View {\n    func getSafeAreaInsets(_ safeInsets: Binding<EdgeInsets>) -> some View {\n        background(\n            GeometryReader { proxy in\n                Color.clear\n                    .preference(key: SafeAreaInsetsKey.self, value: proxy.safeAreaInsets)\n            }\n            .onPreferenceChange(SafeAreaInsetsKey.self) { value in\n                safeInsets.wrappedValue = value\n            }\n        )\n    }\n}<\/pre>\n\n\n\n
\u4f7f\u7528\u65b9\u5f0f\uff1a<\/p>\n\n\n\n
struct GetSafeArea: View {\n    @State var safeAreaInsets: EdgeInsets = .init()\n    var body: some View {\n        NavigationView {\n            VStack {\n                Color.blue\n            }\n        }\n        .getSafeAreaInsets($safeAreaInsets)\n    }\n}\n\n\/\/ iphone 13\n\/\/ EdgeInsets(top: 47.0, leading: 0.0, bottom: 34.0, trailing: 0.0)\n<\/pre>\n\n\n\n
\u4ece\u83b7\u5f97\u7684 insets \u53ef\u4ee5\u5f97\u77e5 HomeIndeicator \u7684\u9ad8\u5ea6\u4e3a 34\u3002<\/p>\n\n\n\n
\u4e5f\u53ef\u4ee5\u4f7f\u7528\u4e0b\u9762\u7684\u4ee3\u7801\uff0c\u8fdb\u4e00\u6b65\u4e86\u89e3 safeAreaInsets \u5728\u5404\u4e2a\u5c42\u7ea7\u89c6\u56fe\u4e2d\u7684\u72b6\u51b5\u3002<\/p>\n\n\n\n
extension View {\n    func printSafeAreaInsets(id: String) -> some View {\n        background(\n            GeometryReader { proxy in\n                Color.clear\n                    .preference(key: SafeAreaInsetsKey.self, value: proxy.safeAreaInsets)\n            }\n            .onPreferenceChange(SafeAreaInsetsKey.self) { value in\n                print(\"\\(id) insets:\\(value)\")\n            }\n        )\n    }\n}<\/pre>\n\n\n\n
\u4f8b\u5982\uff1a<\/p>\n\n\n\n
struct GetSafeArea: View {\n    var body: some View {\n        NavigationView {\n            VStack {\n                Text(\"Hello world\")\n                    .printSafeAreaInsets(id: \"Text\")\n            }\n        }\n        .printSafeAreaInsets(id: \"NavigationView\")\n    }\n}\n\n\/\/ iPhone 13 pro\n\/\/ NavigationView insets:EdgeInsets(top: 47.0, leading: 0.0, bottom: 34.0, trailing: 0.0)\n\/\/ Text insets:EdgeInsets(top: 0.0, leading: 0.0, bottom: 0.0, trailing: 0.0)\n<\/pre>\n\n\n\n
\u4ece KeyWindow \u4e2d\u83b7\u53d6<\/strong><\/p>\n\n\n\n
\u5982\u679c\u53ea\u9700\u8981\u83b7\u53d6\u6839\u89c6\u56fe\u7684 safeAreaInsets \uff0c\u6211\u4eec\u4e5f\u53ef\u4ee5\u4f7f\u7528\u66f4\u52a0\u76f4\u63a5\u7684\u65b9\u5f0f<\/p>\n\n\n\n
extension UIApplication {\n    var keyWindow: UIWindow? {\n        connectedScenes\n            .compactMap {\n                $0 as? UIWindowScene\n            }\n            .flatMap {\n                $0.windows\n            }\n            .first {\n                $0.isKeyWindow\n            }\n    }\n}\n\nprivate struct SafeAreaInsetsKey: EnvironmentKey {\n    static var defaultValue: EdgeInsets {\n        UIApplication.shared.keyWindow?.safeAreaInsets.swiftUiInsets ?? EdgeInsets()\n    }\n}\n\nextension EnvironmentValues {\n    var safeAreaInsets: EdgeInsets {\n        self[SafeAreaInsetsKey.self]\n    }\n}\n\nprivate extension UIEdgeInsets {\n    var swiftUiInsets: EdgeInsets {\n        EdgeInsets(top: top, leading: left, bottom: bottom, trailing: right)\n    }\n}<\/pre>\n\n\n\n
\u53ef\u4ee5\u901a\u8fc7\u73af\u5883\u503c\u83b7\u53d6\u5230\u6839\u89c6\u56fe\u7684 safeAreaInsets \uff1a<\/p>\n\n\n\n
@Environment(\\.safeAreaInsets) private var safeAreaInsets\n<\/pre>\n\n\n\n
\u4f7f\u7528 ignoresSafeArea \u5ffd\u7565\u5b89\u5168\u533a\u57df
<\/h5>\n\n\n\n
\n\n\n\n
\u5728\u5f00\u53d1 iOS \u5e94\u7528\u65f6\uff0c\u7ecf\u5e38\u4f1a\u78b0\u5230\u9700\u8981\u8ba9\u89c6\u56fe\u53ef\u4ee5\u6269\u5c55\u5230\u975e\u5b89\u5168\u533a\u57df\u7684\u60c5\u51b5\u3002\u4f8b\u5982\uff0c\u5e0c\u671b\u8ba9\u80cc\u666f\u989c\u8272\u5145\u6ee1\u6574\u4e2a\u5c4f\u5e55\u3002<\/p>\n\n\n\n
struct FullScreenView: View {\n    var body: some View {\n        ZStack {\n            Color.blue\n            Text(\"Hello world\").foregroundColor(.white)\n        }\n    }\n}\n<\/pre>\n\n\n\n
\u7531\u4e8e SwiftUI \u5728\u9ed8\u8ba4\u7684\u60c5\u51b5\u4e0b\u4f1a\u5c06\u7528\u6237\u89c6\u56fe\u7f6e\u4e8e\u5b89\u5168\u533a\u4e4b\u5185\uff0c\u56e0\u6b64\u6211\u4eec\u53ea\u80fd\u5f97\u5230\u5982\u4e0b\u7684\u7ed3\u679c\uff1a<\/p>\n\n\n\n
\"\"<\/figure><\/div>\n\n\n\n
\u4e3a\u4e86\u8ba9\u89c6\u56fe\u80fd\u591f\u7a81\u7834\u5b89\u5168\u533a\u57df\u7684\u9650\u5236\uff0cSwiftUI \u63d0\u4f9b\u4e86 ignoresSafeArea \u4fee\u9970\u5668\u3002<\/p>\n\n\n\n
struct FullScreenView: View {\n    var body: some View {\n        ZStack {\n            Color.blue\n            Text(\"Hello world\").foregroundColor(.white)\n        }\n        .ignoresSafeArea() \/\/ \u5168\u65b9\u5411\u5ffd\u7565\u5b89\u5168\u533a\u57df\n    }\n}\n<\/pre>\n\n\n\n
\"\"<\/figure><\/div>\n\n\n\n
iOS 13 \u63d0\u4f9b\u7684 edgesIgnoringSafeArea \u4fee\u9970\u5668\u5df2\u7ecf\u5728 iOS 14.5 \u4e2d\u5f03\u7528\u3002<\/p><\/blockquote>\n\n\n\n
ignoresSafeArea \u7684\u5b9a\u4e49\u5982\u4e0b\uff1a<\/p>\n\n\n\n
@inlinable public func ignoresSafeArea(_ regions: SafeAreaRegions = .all, edges: Edge.Set = .all) -> some View\n<\/pre>\n\n\n\n
\u5728\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c .ignoresSafeArea()<\/code> \u4ee3\u8868\u7740\u5728\u5168\u90e8\u65b9\u5411\uff0c\u5ffd\u7565\u5168\u90e8\u7684\u5b89\u5168\u533a\u57df\u5212\u5206\uff08SafeAreaRegions\uff09\u3002<\/p>\n\n\n\n
\u901a\u8fc7\u6307\u5b9a edges\uff0c\u6211\u4eec\u53ef\u4ee5\u8ba9\u67d0\u4e2a\u6216\u67d0\u51e0\u4e2a\u8fb9\u7a81\u7834\u5b89\u5168\u533a\u57df\u7684\u9650\u5236\u3002<\/p>\n\n\n\n
\/\/ \u53ea\u6269\u5c55\u5230\u5e95\u90e8\n.ignoresSafeArea(edges: .bottom)\n\n\/\/ \u6269\u5c55\u5230\u9876\u90e8\u548c\u5e95\u90e8\n.ignoresSafeArea(edges: [.bottom, .trailing])\n\n\/\/ \u6a2a\u5411\u6269\u5c55\n.ignoresSafeArea(edges:.horizontal)\n<\/pre>\n\n\n\n
\u4f7f\u7528\u8d77\u6765\u975e\u5e38\u76f4\u89c2\u3001\u65b9\u4fbf\uff0c\u4f46\u4e3a\u4ec0\u4e48\u89c6\u56fe\u4f1a\u5728\u6709\u952e\u76d8\u8f93\u5165\u65f6\u51fa\u73b0\u4e0d\u7b26\u5408\u9884\u671f\u7684\u884c\u4e3a\uff1f\u8fd9\u662f\u56e0\u4e3a\uff0c\u6211\u4eec\u5e76\u6ca1\u6709\u6b63\u786e\u7684\u8bbe\u7f6e ignoresSafeArea \u53e6\u4e00\u4e2a\u91cd\u8981\u7684\u53c2\u6570regions<\/code>\u3002<\/p>\n\n\n\n
ignoresSafeArea \u76f8\u8f83\u4e8e SwiftUI 1.0 \u63d0\u4f9b\u7684 edgesIgnoringSafeArea \u6700\u5927\u7684\u63d0\u5347\u4fbf\u662f\u5141\u8bb8\u6211\u4eec\u8bbe\u7f6e SafeAreaRegions \u3002<\/p>\n\n\n\n
SafeAreaRegions \u5b9a\u4e49\u4e86\u4e09\u79cd\u5b89\u5168\u533a\u57df\u5212\u5206\uff1a<\/p>\n\n\n\n
  • container<\/li><\/ul>\n\n\n\n
    \u7531\u8bbe\u5907\u548c\u7528\u6237\u754c\u9762\u5185\u7684\u5bb9\u5668\u6240\u5b9a\u4e49\u7684\u5b89\u5168\u533a\u57df\uff0c\u5305\u62ec\u8bf8\u5982\u9876\u90e8\u548c\u5e95\u90e8\u680f\u7b49\u5143\u7d20\u3002<\/p>\n\n\n\n
    • keyboard<\/li><\/ul>\n\n\n\n
      \u4e0e\u663e\u793a\u5728\u89c6\u56fe\u5185\u5bb9\u4e0a\u7684\u4efb\u4f55\u8f6f\u952e\u76d8\u7684\u5f53\u524d\u8303\u56f4\u76f8\u5339\u914d\u7684\u5b89\u5168\u533a\u57df\u3002<\/p>\n\n\n\n
      • all\uff08\u9ed8\u8ba4\uff09<\/li><\/ul>\n\n\n\n
        \u4e0a\u8ff0\u4e24\u79cd\u5b89\u5168\u533a\u57df\u5212\u5206\u7684\u5408\u96c6<\/p>\n\n\n\n
        iOS 13 \u5e76\u6ca1\u6709\u63d0\u4f9b\u952e\u76d8\u81ea\u52a8\u907f\u8ba9\u529f\u80fd\uff0c\u5f00\u53d1\u8005\u9700\u8981\u7f16\u5199\u4e00\u4e9b\u989d\u5916\u7684\u4ee3\u7801\u6765\u89e3\u51b3\u8f6f\u952e\u76d8\u4e0d\u6070\u5f53\u906e\u76d6\u89c6\u56fe\uff08\u5982 TextField \uff09\u7684\u95ee\u9898\u3002<\/p>\n\n\n\n
        \u4ece iOS 14 \u5f00\u59cb\uff0cSwiftUI \u8ba1\u7b97\u89c6\u56fe\u7684\u5b89\u5168\u533a\u57df\u65f6\uff0c\u5c06\u8f6f\u952e\u76d8\u5728\u5c4f\u5e55\u4e0a\u7684\u8986\u76d6\u533a\u57df\uff08iPadOS \u4e0b\uff0c\u5c06\u8f6f\u952e\u76d8\u7f29\u5c0f\u540e\u952e\u76d8\u7684\u8986\u76d6\u533a\u57df\u5c06\u88ab\u5ffd\u7565\uff09\u4e5f\u4e00\u5e76\u8fdb\u884c\u8003\u8651\u3002\u56e0\u6b64\uff0c\u65e0\u9700\u4f7f\u7528\u4efb\u4f55\u989d\u5916\u7684\u4ee3\u7801\uff0c\u89c6\u56fe\u4fbf\u81ea\u52a8\u83b7\u5f97\u4e86\u952e\u76d8\u907f\u8ba9\u7684\u80fd\u529b\u3002\u4f46\u6709\u65f6\uff0c\u5e76\u975e\u6240\u6709\u7684\u89c6\u56fe\u90fd\u9700\u8981\u5c06\u8f6f\u952e\u76d8\u7684\u8986\u76d6\u533a\u57df\u4ece\u5b89\u5168\u533a\u57df\u4e2d\u53bb\u9664\uff0c\u56e0\u6b64\u9700\u8981\u6b63\u786e\u5730\u8bbe\u7f6e SafeAreaRegions \u3002<\/p>\n\n\n\n
        struct IgnoresSafeAreaTest: View {\n    var body: some View {\n        ZStack {\n            \/\/ \u6e10\u53d8\u80cc\u666f\n            Rectangle()\n                .fill(.linearGradient(.init(colors: [.red, .blue, .orange]), startPoint: .topLeading, endPoint: .bottomTrailing))\n            VStack {\n                \/\/ Logo\n                Circle().fill(.regularMaterial).frame(width: 100, height: 100).padding(.vertical, 100)\n                \/\/ \u6587\u672c\u8f93\u5165\n                TextField(\"name\", text: .constant(\"\"))\n                    .textFieldStyle(.roundedBorder)\n                    .padding()\n            }\n        }\n    }\n}<\/pre>\n\n\n\n
        \"\"<\/figure><\/div>\n\n\n\n
        \u4e0a\u9762\u7684\u4ee3\u7801\u5c3d\u7ba1\u5b9e\u73b0\u4e86\u952e\u76d8\u7684\u81ea\u52a8\u907f\u8ba9\uff0c\u4f46\u5e76\u4e0d\u5b8c\u5168\u7b26\u5408\u9884\u671f\u884c\u4e3a\u3002\u9996\u5148\uff0c\u80cc\u666f\u5e76\u6ca1\u6709\u5145\u6ee1\u5168\u90e8\u5c4f\u5e55\uff0c\u5176\u6b21\u5728\u8f6f\u952e\u76d8\u5f39\u51fa\u65f6\uff0c\u6211\u4eec\u5e76\u4e0d\u5e0c\u671b\u80cc\u666f\u56e0\u4e3a\u5b89\u5168\u533a\u57df\u7684\u53d8\u5316\u800c\u53d1\u751f\u6539\u53d8\u3002\u5c3d\u7ba1\u901a\u8fc7 ignoresSafeArea \u53ef\u4ee5\u89e3\u51b3\u4e0a\u8ff0\u95ee\u9898\uff0c\u4f46\u5728\u4ec0\u4e48\u4f4d\u7f6e\u6dfb\u52a0\u3001\u5982\u4f55\u8bbe\u5b9a\u8fd8\u662f\u6709\u4e00\u70b9\u8bb2\u7a76\u7684\u3002<\/p>\n\n\n\n
        \u6211\u4eec\u5c06 ignoresSafeArea \u6dfb\u52a0\u5230 ZStack \u4e4b\u540e\uff1a<\/p>\n\n\n\n
        ZStack {\n    ...\n}\n.ignoresSafeArea()\n<\/pre>\n\n\n\n
        \u6b64\u65f6\uff0c\u80cc\u666f\u5145\u6ee1\u4e86\u5c4f\u5e55\uff0c\u4e5f\u4e0d\u53d7\u8f6f\u952e\u76d8\u5f39\u51fa\u7684\u5f71\u54cd\u4e86\u3002\u4f46\u524d\u666f\u7684\u5185\u5bb9\u5931\u53bb\u4e86\u952e\u76d8\u81ea\u52a8\u907f\u8ba9\u7684\u80fd\u529b\u3002<\/p>\n\n\n\n
        \"\"<\/figure><\/div>\n\n\n\n
        \u5982\u679c\u5c06\u4ee3\u7801\u4fee\u6539\u6210\uff1a<\/p>\n\n\n\n
        ZStack {\n    ...\n}\n.ignoresSafeArea(.container)\n<\/pre>\n\n\n\n
        \u6b64\u65f6\uff0c\u80cc\u666f\u5145\u6ee1\u4e86\u5c4f\u5e55\uff0c\u524d\u666f\u652f\u6301\u4e86\u952e\u76d8\u907f\u8ba9\uff0c\u4f46\u80cc\u666f\u4f1a\u5728\u952e\u76d8\u51fa\u73b0\u65f6\uff0c\u53d1\u751f\u4e86\u4e0d\u8be5\u6709\u7684\u53d8\u5316\u3002<\/p>\n\n\n\n
        \"\"<\/figure><\/div>\n\n\n\n
        \u6b63\u786e\u7684\u5904\u7406\u65b9\u5f0f\u662f\uff0c\u53ea\u8ba9\u80cc\u666f\u5ffd\u7565\u5b89\u5168\u533a\u57df\uff1a<\/p>\n\n\n\n
        struct IgnoresSafeAreaTest: View {\n    var body: some View {\n        ZStack {\n            Rectangle()\n                .fill(.linearGradient(.init(colors: [.red, .blue, .orange]), startPoint: .topLeading, endPoint: .bottomTrailing))\n                .ignoresSafeArea(.all) \/\/ \u53ea\u8ba9\u80cc\u666f\u5ffd\u7565\u5b89\u5168\u533a\u57df\n            VStack {\n                Circle().fill(.regularMaterial).frame(width: 100, height: 100).padding(.vertical, 100)\n                TextField(\"name\", text: .constant(\"\"))\n                    .textFieldStyle(.roundedBorder)\n                    .padding()\n            }\n        }\n    }\n}\n<\/pre>\n\n\n\n
        \"\"<\/figure><\/div>\n\n\n\n
        \u9664\u4e86\u9700\u8981\u5bf9\u6b63\u786e\u7684\u89c6\u56fe\u8bbe\u5b9a\u6b63\u786e\u7684 ignoresSafeArea \u53c2\u6570\u5916\uff0c\u6709\u65f6\u4e3a\u4e86\u83b7\u5f97\u6ee1\u610f\u7684\u7ed3\u679c\uff0c\u9002\u5f53\u5730\u8c03\u6574\u89c6\u56fe\u7684\u7ec4\u7ec7\u5f62\u5f0f\u4e5f\u662f\u4e0d\u9519\u7684\u9009\u62e9\u3002<\/p>\n\n\n\n
        \u4f7f\u7528 safeAreaInset \u6269\u5c55\u5b89\u5168\u533a\u57df<\/strong><\/h5>\n\n\n\n
        \n\n\n\n
        \u5728 SwiftUI \u4e2d\uff0c\u6240\u6709\u57fa\u4e8e UIScrollView \u7684\u7ec4\u4ef6\uff08ScrollView\u3001List\u3001Form\uff09\uff0c\u5728\u9ed8\u8ba4\u60c5\u51b5\u4e0b\u90fd\u4f1a\u5145\u6ee1\u6574\u4e2a\u5c4f\u5e55\uff0c\u4f46\u4ecd\u53ef\u786e\u4fdd\u6211\u4eec\u53ef\u4ee5\u5728\u5b89\u5168\u533a\u57df\u5185\u770b\u5230\u6240\u6709\u7684\u5185\u5bb9\u3002<\/p>\n\n\n\n
        List(0..<100){ id in\n    Text(\"id\\(id)\")\n}\n<\/pre>\n\n\n\n
        \"\"<\/figure><\/div>\n\n\n\n
        \u5f53\u88ab\u5d4c\u5165\u5230 TabView \u65f6\uff0cTabView \u4f1a\u8c03\u6574\u5176\u5185\u90e8\u7684\u5b89\u5168\u533a\u57df\u3002<\/p>\n\n\n\n
        \"\"<\/figure><\/div>\n\n\n\n
        \u9057\u61be\u7684\u662f\uff0c\u5728 iOS 15 \u4e4b\u524d\uff0cSwiftUI \u5e76\u6ca1\u6709\u63d0\u4f9b\u8c03\u6574\u89c6\u56fe\u5b89\u5168\u533a\u7684\u624b\u6bb5\uff0c\u5982\u679c\u6211\u4eec\u60f3\u901a\u8fc7 SwiftUI \u7684\u624b\u6bb5\u521b\u5efa\u4e00\u4e2a\u81ea\u5b9a\u4e49 Tabbar \u65f6\uff0c\u5217\u8868\u4e2d\u6700\u540e\u7684\u5185\u5bb9\u5c06\u88ab Tabbar \u906e\u6321\u3002<\/p>\n\n\n\n
        safeAreaInset \u4fee\u9970\u7b26\u7684\u51fa\u73b0\u89e3\u51b3\u4e86\u4e0a\u8ff0\u7684\u95ee\u9898\u3002\u901a\u8fc7 safeAreaInset\uff0c\u6211\u4eec\u53ef\u4ee5\u7f29\u5c0f\u89c6\u56fe\u7684\u5b89\u5168\u533a\u57df\uff0c\u4ee5\u786e\u4fdd\u6240\u6709\u5185\u5bb9\u90fd\u53ef\u4ee5\u6309\u9884\u671f\u663e\u793a\u3002<\/p>\n\n\n\n
        \u4f8b\u5982\uff1a<\/p>\n\n\n\n
        struct AddSafeAreaDemo: View {\n    var body: some View {\n        ZStack {\n            Color.yellow.border(.red, width: 10)\n        }\n        .safeAreaInset(edge: .bottom, alignment: .center, spacing: 0) {\n            Rectangle().fill(.blue)\n                .frame(height: 100)\n        }\n        .ignoresSafeArea()\n    }\n}\n<\/pre>\n\n\n\n
        \u6211\u4eec\u4f7f\u7528\u4e86 safeAreaInset\uff0c\u5c06 ZStack \u5185\u90e8\u7684\u5b89\u5168\u533a\u4ece\u5e95\u8fb9\u7f29\u5c0f\u4e86 100\uff0c\u5e76\u5728\u6b64\u5904\u663e\u793a\u4e86\u4e00\u4e2a\u84dd\u8272\u7684\u77e9\u5f62\u3002<\/p>\n\n\n\n
        \"\"<\/figure><\/div>\n\n\n\n
        \u5229\u7528 safeAreaInset\uff0c\u53ef\u4ee5\u8ba9 List \u5728\u81ea\u5b9a\u4e49\u7684 TabBar \u4e2d\u8868\u73b0\u540c\u7cfb\u7edf TabBar \u4e00\u81f4\u7684\u884c\u4e3a\u3002<\/p>\n\n\n\n
        struct AddSafeAreaDemo: View {\n    var body: some View {\n        NavigationView {\n            List(0..<100) { i in\n                Text(\"id:\\(i)\")\n            }\n            .safeAreaInset(edge: .bottom, spacing: 0) {\n                Text(\"\u5e95\u90e8\u72b6\u6001\u6761\")\n                    .font(.title3)\n                    .foregroundColor(.indigo)\n                    .frame(minWidth: 0, maxWidth: .infinity, minHeight: 0, maxHeight: 40)\n                    .padding()\n                    .background(.green.opacity(0.6))\n\n            }\n        }\n    }\n}<\/pre>\n\n\n\n
        \u5728 iPhone 13 \u4e0b\u7684\u8868\u73b0<\/p>\n\n\n\n
        \"\"<\/figure><\/div>\n\n\n\n
        \u6211\u4eec\u53ea\u8c03\u6574\u4e86\u5b89\u5168\u533a\u57df\uff0c SwiftUI \u4f1a\u81ea\u52a8\u5728\u4e0d\u540c\u7684\u8bbe\u5907\u4e0a\u8fdb\u884c\u9002\u914d\uff08\u5728 iPhone 13 \u4e0a\uff0c\u72b6\u6001\u6761\u7684\u9ad8\u5ea6\u4e3a 40 + HomeIndeicator\u533a\u57df\u9ad8\u5ea6\uff09\u3002<\/p>\n\n\n\n
        \u81ea\u52a8\u9002\u914d\u53ea\u5bf9 background<\/strong> \u6709\u6548\u3002<\/p><\/blockquote>\n\n\n\n
        \u76f8\u540c\u7684\u4ee3\u7801\uff0c\u5728 iPhone 8 \u4e0b\u7684\u8868\u73b0<\/p>\n\n\n\n
        \"\"<\/figure><\/div>\n\n\n\n
        iOS 15.2 \u4e4b\u524d\u7684\u7248\u672c\uff0csafeAreaInset \u5bf9 List \u548c Form \u7684\u652f\u6301\u6709\u95ee\u9898\uff08ScrollView \u8868\u73b0\u6b63\u5e38\uff09\uff0c\u65e0\u6cd5\u5c06\u5217\u8868\u6700\u540e\u7684\u5185\u5bb9\u5168\u90e8\u663e\u793a\u5b8c\u6574\u3002\u8be5 Bug \u5df2\u5728 iOS 15.2 \u4e2d\u5f97\u5230\u4e86\u4fee\u590d\u3002\u672c\u6587\u4e2d\u7684\u4ee3\u7801\uff0c\u5728 Xcode 13.2 beta (13C5066c) \u4e4b\u540e\u7684\u7248\u672c\u90fd\u53ef\u4ee5\u83b7\u5f97\u7b26\u5408\u9884\u671f\u7684\u8868\u73b0\u3002<\/p><\/blockquote>\n\n\n\n
        \"\"<\/figure><\/div>\n\n\n\n
        safeAreaInset \u53ef\u4ee5\u53e0\u52a0\uff0c\u8fd9\u6837\u6211\u4eec\u53ef\u4ee5\u5728\u591a\u4e2a\u8fb9\u5bf9\u5b89\u5168\u533a\u57df\u8fdb\u884c\u8c03\u6574\uff0c\u4f8b\u5982\uff1a<\/p>\n\n\n\n
        ZStack {\n    Color.yellow.border(.red, width: 10)\n}\n.safeAreaInset(edge: .bottom, alignment: .center, spacing: 0) {\n    Rectangle().fill(.blue)\n        .frame(height: 100)\n}\n.safeAreaInset(edge: .trailing, alignment: .center, spacing: 0) {\n    Rectangle().fill(.blue)\n        .frame(width: 50)\n}\n<\/pre>\n\n\n\n
        \u6211\u4eec\u4e5f\u53ef\u4ee5\u901a\u8fc7 aligmnet \u4e3a\u5b89\u5168\u533a\u57df\u63d2\u5165\u5185\u5bb9\u8bbe\u7f6e\u5bf9\u9f50\u65b9\u5f0f\uff0c\u7528 spacing \u5728\u60f3\u8981\u663e\u793a\u7684\u5185\u5bb9\u548c\u5b89\u5168\u533a\u57df\u6dfb\u52a0\u5185\u5bb9\u4e4b\u95f4\u6dfb\u52a0\u989d\u5916\u7684\u7a7a\u95f4\u3002<\/p>\n\n\n\n
        \u5c3d\u7ba1\u4f7f\u7528 safeAreaInset \u4e3a\u5217\u8868\u5728\u5e95\u90e8\u6dfb\u52a0\u72b6\u6001\u680f\u6216\u81ea\u5b9a\u4e49 TabBar \u975e\u5e38\u65b9\u4fbf\uff0c\u4f46\u5982\u679c\u4f60\u7684\u5217\u8868\u4e2d\u4f7f\u7528\u4e86 TextField\uff0c\u60c5\u51b5\u5c06\u53d8\u5f97\u5f88\u9ebb\u70e6<\/strong>\u3002<\/p>\n\n\n\n
        \u6bd4\u5982\uff0c\u4e0b\u9762\u662f\u4e00\u4e2a\u5f88\u6781\u7aef\u7684\u4f8b\u5b50\uff1a<\/p>\n\n\n\n
        struct AddSafeAreaDemo: View {\n    var body: some View {\n        ScrollView {\n            ForEach(0..<100) { i in\n                TextField(\"input text for id:\\(i)\",text:.constant(\"\"))\n            }\n        }\n        .safeAreaInset(edge: .bottom, spacing: 0) {\n            Text(\"\u5e95\u90e8\u72b6\u6001\u6761\")\n                .font(.title3)\n                .foregroundColor(.indigo)\n                .frame(minWidth: 0, maxWidth: .infinity, minHeight: 0, maxHeight: 40)\n                .padding()\n                .background(.green.opacity(0.6))\n                .ignoresSafeArea(.all)\n        }\n    }\n}\n<\/pre>\n\n\n\n
        \"\"<\/figure><\/div>\n\n\n\n
        \u6211\u4eec\u662f\u65e0\u6cd5\u901a\u8fc7\u4f7f\u7528 ignoresSafeArea\uff0c\u8ba9 TextField \u5728\u4fdd\u6301\u5bf9\u952e\u76d8\u81ea\u52a8\u907f\u8ba9\u7684\u60c5\u51b5\u4e0b\uff0c\u56fa\u5b9a\u5e95\u90e8\u7684\u72b6\u6001\u6761\u3002\u6b64\u65f6\uff0c\u5e95\u90e8\u72b6\u6001\u6761\u7684\u8868\u73b0\u80af\u5b9a\u4e0d\u7b26\u5408\u8bbe\u8ba1\u7684\u521d\u8877\u3002<\/p>\n\n\n\n
        \u5982\u679c\u60f3\u8ba9\u5e95\u90e8\u72b6\u6001\u6761\u56fa\u5b9a\uff0c\u540c\u65f6\u53c8\u4fdd\u6301 TextField \u7684\u81ea\u52a8\u907f\u8ba9\u80fd\u529b\uff0c\u9700\u8981\u901a\u8fc7\u76d1\u63a7\u952e\u76d8\u7684\u72b6\u6001\uff0c\u505a\u4e00\u70b9\u989d\u5916\u7684\u64cd\u4f5c\u3002<\/p>\n\n\n\n
        final class KeyboardMonitor: ObservableObject {\n    @Published var willShow: Bool = false\n    private var cancellables = Set<AnyCancellable>()\n    init() {\n        NotificationCenter.default.publisher(for: UIResponder.keyboardWillShowNotification, object: nil)\n            .sink { _ in\n                self.willShow = true\n            }\n            .store(in: &cancellables)\n        NotificationCenter.default.publisher(for: UIResponder.keyboardWillHideNotification, object: nil)\n            .sink { _ in\n                self.willShow = false\n            }\n            .store(in: &cancellables)\n    }\n}\n\nstruct AddSafeAreaDemo: View {\n    @StateObject var monitor = KeyboardMonitor()\n    var body: some View {\n        ScrollView {\n            ForEach(0..<100) { i in\n                TextField(\"input text for id:\\(i)\", text: .constant(\"\"))\n            }\n        }\n        .safeAreaInset(edge: .bottom, spacing: 0) {\n            if !monitor.willShow { \/\/ \u5728\u952e\u76d8\u5373\u5c06\u5f39\u51fa\u65f6\u9690\u85cf\n                Text(\"\u5e95\u90e8\u72b6\u6001\u6761\")\n                    .font(.title3)\n                    .foregroundColor(.indigo)\n                    .frame(minWidth: 0, maxWidth: .infinity, minHeight: 0, maxHeight: 40)\n                    .padding()\n                    .background(.green.opacity(0.6))\n                    .ignoresSafeArea(.all)\n            }\n        }\n    }\n}<\/pre>\n\n\n\n
        \u5982\u679c\u4e0a\u8ff0\u7684\u4ee3\u7801\u88ab\u653e\u7f6e\u5728 NavigationView \u4e2d\uff0c\u8fd8\u9700\u8981\u5bf9\u5e95\u90e8\u72b6\u6001\u6761\u52a8\u753b\u505a\u66f4\u52a0\u7cbe\u7ec6\u5730\u5904\u7406\u3002<\/p><\/blockquote>\n\n\n\n
        \u5b9e\u6218\uff1a\u7528 safeAreaInset \u5b9e\u73b0\u7c7b\u4f3c\u5fae\u4fe1\u7684\u5bf9\u8bdd\u9875\u9762<\/h5>\n\n\n\n
        \n\n\n\n
        \u4f7f\u7528 safeAreaInset\uff0c\u6211\u4eec\u53ea\u9700\u5f88\u5c11\u7684\u4ee3\u7801\u4fbf\u53ef\u4ee5\u5b9e\u73b0\u4e00\u4e2a\u7c7b\u4f3c\u5fae\u4fe1\u7684\u5bf9\u8bdd\u9875\u9762\u3002<\/p>\n\n\n\n
        \"\"<\/figure><\/div>\n\n\n\n
        struct ChatBarDemo: View {\n    @State var messages: [Message] = (0...60).map { Message(text: \"message:\\($0)\") }\n    @State var text = \"\"\n    @FocusState var focused: Bool\n    @State var bottomTrigger = false\n    var body: some View {\n        NavigationView {\n            ScrollViewReader { proxy in\n                List {\n                    ForEach(messages) { message in\n                        Text(message.text)\n                            .id(message.id)\n                    }\n                }\n                .listStyle(.inset)\n                .safeAreaInset(edge: .bottom) {\n                    ZStack(alignment: .top) {\n                        Color.clear\n                        Rectangle().fill(.secondary).opacity(0.3).frame(height: 0.6) \/\/ \u4e0a\u90e8\u7ebf\u6761\n                        HStack(alignment: .firstTextBaseline) {\n                            \/\/ \u8f93\u5165\u6846\n                            TextField(\"\u8f93\u5165\", text: $text)\n                                .focused($focused)\n                                .textFieldStyle(.roundedBorder)\n                                .padding(.horizontal, 10)\n                                .padding(.top, 10)\n                                .onSubmit {\n                                    addMessage()\n                                    scrollToBottom()\n                                }\n                                .onChange(of: focused) { value in\n                                    if value {\n                                        scrollToBottom()\n                                    }\n                                }\n                            \/\/ \u56de\u590d\u6309\u94ae\n                            Button(\"\u56de\u590d\") {\n                                addMessage()\n                                scrollToBottom()\n                                focused = false\n                            }\n                            .buttonStyle(.bordered)\n                            .controlSize(.small)\n                            .tint(.green)\n                        }\n                        .padding(.horizontal, 30)\n                    }\n                    .frame(minWidth: 0, maxWidth: .infinity, minHeight: 0, maxHeight: 53)\n                    .background(.regularMaterial)\n                }\n                .onChange(of: bottomTrigger) { _ in\n                    withAnimation(.spring()) {\n                        if let last = messages.last {\n                            proxy.scrollTo(last.id, anchor: .bottom)\n                        }\n                    }\n                }\n                .onAppear {\n                    if let last = messages.last {\n                        proxy.scrollTo(last.id, anchor: .bottom)\n                    }\n                }\n            }\n            .navigationBarTitle(\"SafeArea Chat Demo\")\n        }\n    }\n\n    func scrollToBottom() {\n        DispatchQueue.main.asyncAfter(deadline: .now() + 0.25) {\n            bottomTrigger.toggle()\n        }\n    }\n\n    func addMessage() {\n        if !text.isEmpty {\n            withAnimation {\n                messages.append(Message(text: text))\n            }\n            text = \"\"\n        }\n    }\n}\n\nstruct Message: Identifiable, Hashable {\n    let id = UUID()\n    let text: String\n}<\/pre>\n\n\n\n
        \u603b\u7ed3<\/h5>\n\n\n\n
        \n\n\n\n
        \u5728 SwiftUI \u4e2d\uff0c\u6709\u4e0d\u5c11\u7684\u529f\u80fd\u90fd\u5c5e\u4e8e\u770b\u4e00\u773c\u5c31\u4f1a\uff0c\u4f46\u7528\u8d77\u6765\u5c31\u5e9f\u7684\u60c5\u51b5\u3002\u5373\u4f7f\u8868\u9762\u4e0a\u5e73\u5e73\u65e0\u5947\u7684\u529f\u80fd\uff0c\u4ed4\u7ec6\u6df1\u6316\u4ecd\u53ef\u83b7\u5f97\u4e0d\u5c11\u6536\u83b7\u3002<\/p>\n\n\n\n
        \u5e0c\u671b\u672c\u6587\u80fd\u591f\u5bf9\u4f60\u6709\u6240\u5e2e\u52a9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
        \u8f6c\u8f7d\uff1ahttps:\/\/www.fatbobman.com\/posts\/safeArea\/ Safe Area\uff08 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"_links":{"self":[{"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts\/4726"}],"collection":[{"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4726"}],"version-history":[{"count":20,"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts\/4726\/revisions"}],"predecessor-version":[{"id":4816,"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts\/4726\/revisions\/4816"}],"wp:attachment":[{"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4726"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4726"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4726"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}