[完成翻译] src/development/ios-project-migration.md

src/development/ios-project-migration.md

@@ -8,66 +8,122 @@ keywords: Xcode 11.4
 ---
 
 {{site.alert.note}}
+
   You might be directed to this page if Flutter detects that your project
   doesn't support Xcode 11.4 or higher.
+
+  如果 Flutter 检测到你的项目不支持 Xcode 11.4 及以上的版本，
+  可能会提示你查看该页面。
+
 {{site.alert.end}}
 
 To develop Flutter apps for iOS, you need a Mac with Xcode installed.
 Xcode 11.4 changed the way frameworks are linked and embedded,
 and you may [see the following errors when switching between
 iOS devices and simulators:][errors]
 
+你需要一台安装了 Xcode 的 Mac 来开发 iOS 的 Flutter 应用。
+Xcode 11.4 变更了很多库的链接和集成方式，你可能会在
+[iOS 真机和模拟器之间切换时遇到以下两个错误][errors]：
+
 ```
 Building for iOS, but the linked and embedded framework 'App.framework' was built for iOS Simulator.
 ```
+
 or
+
+或者
+
 ```
 Building for iOS Simulator, but the linked and embedded framework 'App.framework' was built for iOS.
 ```
 
 Flutter v1.15.3 and later automatically migrates your Xcode project.
 
+Flutter 1.15.3 及以上的版本会自动迁移你的 Xcode 项目。
+
 If you need to manually upgrade your project, use the following steps:
 
+你可以手动执行以下步骤进行迁移：
+
 <ol markdown="1">
-<li markdown="1">From the Flutter app directory,
-    open `ios/Runner.xcworkspace` in Xcode.
+<li markdown="1">
+
+From the Flutter app directory, open `ios/Runner.xcworkspace` in Xcode.
+
+在 Flutter 应用目录下，使用 Xcode 打开 `ios/Runner.xcworkspace`。
+
 </li>
-<li markdown="1">In the **Navigator** pane, locate the
-    **Flutter** group and remove `App.framework`
-    and `Flutter.framework`.
+<li markdown="1">
+
+In the **Navigator** pane, locate the
+**Flutter** group and remove `App.framework`
+and `Flutter.framework`.
+
+在 **Navigator** 面板，定位到 **Flutter** 组别并移除
+`App.framework` 和 `Flutter.framework`。
+
 {% include docs/app-figure.md image="development/ios-project-migration/navigator.png" alt="Remove Frameworks in Xcode Navigator" %}
 </li>
 
-<li markdown="1">In the Runner target build settings
-    **Build Phases > Link Binary With Libraries**
-    confirm `App.framework` and `Flutter.framework`
-    are no longer present. Also confirm
-    in **Build Phases > Embed Frameworks**.
+<li markdown="1">
+
+In the Runner target build settings
+ **Build Phases > Link Binary With Libraries**
+confirm `App.framework` and `Flutter.framework`
+are no longer present. Also confirm
+in **Build Phases > Embed Frameworks**.
+
+在 Runner 目标的构建设置 (build settings) 的
+**Build Phases > Link Binary With Libraries**
+和 **Build Phases > Embed Frameworks**
+中确认 `App.framework` 和 `Flutter.framework`
+已经不存在。
+
 {% include docs/app-figure.md image="development/ios-project-migration/framework-build-phase.png" alt="Confirm Frameworks Removed from Build Phases" %}
 </li>
 
-<li markdown="1">Change the Runner target build settings
-    **Build Phases > Thin Binary** script as follows:
+<li markdown="1">
+
+Change the Runner target build settings
+**Build Phases > Thin Binary** script as follows:
+
+修改 Runner 目标构建设置的 **Build Phases > Thin Binary**
+构建命令为以下内容：
+
 ```sh
 /bin/sh "$FLUTTER_ROOT/packages/flutter_tools/bin/xcode_backend.sh" embed
 /bin/sh "$FLUTTER_ROOT/packages/flutter_tools/bin/xcode_backend.sh" thin
 ```
 {% include docs/app-figure.md image="development/ios-project-migration/script-phase.png" alt="Update Thin Binary Script Build Phase" %}
 </li>
 
-<li markdown="1">In the Runner target **Build Settings >
-    Other Linker Flags** (`OTHER_LDFLAGS`)
-    add `$(inherited) -framework Flutter`.
+<li markdown="1">
+
+In the Runner target **Build Settings >
+Other Linker Flags** (`OTHER_LDFLAGS`)
+add `$(inherited) -framework Flutter`.
+
+在 Runner 目标的
+**Build Settings > Other Linker Flags** (`OTHER_LDFLAGS`)
+中添加 `$(inherited) -framework Flutter`。
+
 {% include docs/app-figure.md image="development/ios-project-migration/linker-arguments.png" alt="Update Other Linker Arguments Build Setting" %}
 </li>
 </ol>
 
 {{site.alert.tip}}
+
   If you are using Flutter plugins, you can now delete the line
   `install! 'cocoapods', :disable_input_output_paths => true` from `ios/Podfile`
   to improve compilation time. Flutter projects created after v1.15.4 will not
   contain this line.
+
+  如果你的项目使用了 Flutter 插件，你可以从 `ios/Podfile` 中
+  删除 `install! 'cocoapods', :disable_input_output_paths => true`
+  来改善构建时间。
+  自 Flutter 1.15.4 版本以后创建的项目不会包含这一行。
+
 {{site.alert.end}}
 
 [errors]: {{site.repo.flutter}}/issues/50568