使用PostProcessBuild设定Unity产生的Xcode Project

简单来说就是unity提供一套api去修改xcode项目工程配置以及修改plist文件内容(当unity build结束后, 会自动回调OnPostProcessBuild).

以下是一些用到的配置处理：

ENABLE_BITCODE

AddFramework

https

NSPhotoLibraryUsageDescription

 [PostProcessBuild]
 public static void OnPostprocessBuild(BuildTarget BuildTarget, string path)
 {
     if (BuildTarget == BuildTarget.iOS)
     {
         UnityEngine.Debug.Log("XCodePostProcess: Starting to perform post build tasks for iOS platform.");

         /*======== projPath ========*/
         string projPath = path + "/Unity-iPhone.xcodeproj/project.pbxproj";

         PBXProject proj = new PBXProject();
         proj.ReadFromFile(projPath);

         string target = proj.TargetGuidByName("Unity-iPhone");

         // ENABLE_BITCODE=False
         proj.SetBuildProperty(target, "ENABLE_BITCODE", "false");            

         // add extra framework(s)
         proj.AddFrameworkToProject(target, "Security.framework", false);
         proj.AddFrameworkToProject(target, "CoreTelephony.framework", true);
         proj.AddFrameworkToProject(target, "libz.tbd", true);

         // rewrite to file
         File.WriteAllText(projPath, proj.WriteToString());

         string plistPath = path + "/Info.plist";
         PlistDocument plist = new PlistDocument();
         plist.ReadFromString(File.ReadAllText(plistPath));

         // Get root
         PlistElementDict rootDict = plist.root;

         /* ipad 关闭分屏 */
         rootDict.SetBoolean("UIRequiresFullScreen", true);

         var now = System.DateTime.Now;
         string time = string.Format("{0}_{1}_{2} {3}:{4}:{5}", now.Year, now.Month, now.Day, now.Hour, now.Minute, now.Second);
         /* 设置Build值 */
         rootDict.SetString("CFBundleVersion", string.Format("{0}({1})", GlobalVars.VERSION, time));

         /* iOS9所有的app对外http协议默认要求改成https */
         // Add value of NSAppTransportSecurity in Xcode plist
         var atsKey = "NSAppTransportSecurity";

         PlistElementDict dictTmp = rootDict.CreateDict( atsKey );
         dictTmp.SetBoolean( "NSAllowsArbitraryLoads", true);

         // location native development region
         rootDict.SetString("CFBundleDevelopmentRegion", "zh_CN");

         // for share sdk 截屏
         rootDict.SetString("NSPhotoLibraryUsageDescription", "We need use photo library usage");

         // Write to file
         File.WriteAllText(plistPath, plist.WriteToString());

     }
 }

在Info.plist里添加URL Scheme：

 /*======== plist ========*/
 string plistPath = path + "/Info.plist";
 PlistDocument plist = new PlistDocument();
 plist.ReadFromString(File.ReadAllText(plistPath));

 // Get root
 PlistElementDict rootDict = plist.root;

 // URL schemes 追加
 var urlTypeArray = plist.root.CreateArray("CFBundleURLTypes");
 var urlTypeDict = urlTypeArray.AddDict();
 urlTypeDict.SetString("CFBundleTypeRole", "Editor");
 urlTypeDict.SetString("CFBundleURLName", "OpenApp");
 var urlScheme = urlTypeDict.CreateArray("CFBundleURLSchemes");
 urlScheme.AddString("sampleApp");

 urlTypeDict = urlTypeArray.AddDict();
 urlTypeDict.SetString("CFBundleURLName", "com.abc.sampleApp");
 urlScheme = urlTypeDict.CreateArray("CFBundleURLSchemes");
 urlScheme.AddString("sampleApp2");

有些第三方的sdk需要在appController里加一些“料”，比如Adjust SDK的deeplink功能，需要在openUrl里加[Adjust appWillOpenUrl:url];，也需要在continueUserActivity函数里作相应处理。这里的处理参考了雨松大大的博客。

首先是XClass这个类：

 using UnityEngine;
 using System.Collections;
 using System.Collections.Generic;
 using System.IO;

 namespace UnityEditor.XCodeEditor
 {
     public partial class XClass : System.IDisposable
     {

         private string filePath;

         public XClass(string fPath)
         {
             filePath = fPath;
             if (!System.IO.File.Exists(filePath))
             {
                 Debug.LogError(filePath + "not found in path.");
                 return;
             }
         }

         public void WriteBelow(string below, string text)
         {
             StreamReader streamReader = new StreamReader(filePath);
             string text_all = streamReader.ReadToEnd();
             streamReader.Close();

             int beginIndex = text_all.IndexOf(below);
             if (beginIndex == -)
             {
                 Debug.LogError(filePath + " not found sign in " + below);
                 return;
             }

             int endIndex = text_all.LastIndexOf("\n", beginIndex + below.Length);

             text_all = text_all.Substring(, endIndex) + "\n" + text + "\n" + text_all.Substring(endIndex);

             StreamWriter streamWriter = new StreamWriter(filePath);
             streamWriter.Write(text_all);
             streamWriter.Close();
         }

         public void Replace(string below, string newText)
         {
             StreamReader streamReader = new StreamReader(filePath);
             string text_all = streamReader.ReadToEnd();
             streamReader.Close();

             int beginIndex = text_all.IndexOf(below);
             if (beginIndex == -)
             {
                 Debug.LogError(filePath + " not found sign in " + below);
                 return;
             }

             text_all = text_all.Replace(below, newText);
             StreamWriter streamWriter = new StreamWriter(filePath);
             streamWriter.Write(text_all);
             streamWriter.Close();

         }

         public void Dispose()
         {

         }
     }
 }

然后还是在OnPostprocessBuild里进行hack：

 string xcodePath = Path.GetFullPath (path);
 UnityEditor.XCodeEditor.XClass UnityAppController = new UnityEditor.XCodeEditor.XClass(xcodePath + "/Classes/UnityAppController.mm");
 UnityAppController.WriteBelow("#include \"PluginBase/AppDelegateListener.h\"", "#include \"Adjust.h\"");
 UnityAppController.WriteBelow("AppController_SendNotificationWithArg(kUnityOnOpenURL, notifData);","[Adjust appWillOpenUrl:url];");
 UnityAppController.WriteBelow("SensorsCleanup();\n}", "- (BOOL)application:(UIApplication*)application continueUserActivity:(nonnull NSUserActivity *)userActivity restorationHandler:(nonnull void (^)(NSArray * _Nullable))restorationHandler\r{\rif ([[userActivity activityType] isEqualToString:NSUserActivityTypeBrowsingWeb])\r{\rNSURL *url = [userActivity webpageURL];\rNSURL *oldStyleDeepLink = [Adjust convertUniversalLink:url scheme:@\"sampleApp\"];\r[Adjust appWillOpenUrl:url];\r}\rreturn YES;\r}");

还在研究怎么加XCode Entitlement文件中。。。