一、 获取 PBXProject PBXProject的很多操作都是通过guid的

var pbxProject = new PBXProject();

二 、获取projectPath

var projectPath = PBXProject.GetPBXProjectPath(iosProjectPath);

三 、读取pbxProject 文件

pbxProject.ReadFromFile(projectPath);

四 、 读取Unity-iPhone"对应的target和UnityFramework

GetUnityMainTargetGuid是获取XCode工程中"Unity-iPhone"对应的target，GetUnityFrameworkTargetGuid则对应"UnityFramework"var mainTargetGuid = pbxProject.GetUnityMainTargetGuid();////这个对应target中的Unity-iPhone
var frameworkTargetGuid = pbxProject.GetUnityFrameworkTargetGuid();////这个对应target中UnityFramework

五 、添加

pbxProject.AddBuildProperty(mainTargetGuid, "OTHER_LDFLAGS", "-ObjC");
pbxProject.AddBuildProperty(frameworkTargetGuid, "OTHER_LDFLAGS", "-ObjC");pbxProject.SetTeamId(mainTargetGuid, "");
pbxProject.SetTeamId(frameworkTargetGuid, "");
pbxProject.SetBuildProperty(mainTargetGuid, "ALWAYS_EMBED_SWIFT_STANDARD_LIBRARIES", "YES");
pbxProject.SetBuildProperty(frameworkTargetGuid, "ALWAYS_EMBED_SWIFT_STANDARD_LIBRARIES", "NO");pbxProject.SetBuildProperty(mainTargetGuid, "GCC_ENABLE_OBJC_EXCEPTIONS", "YES");
pbxProject.SetBuildProperty(frameworkTargetGuid, "GCC_ENABLE_OBJC_EXCEPTIONS", "YES");pbxProject.SetBuildProperty(mainTargetGuid, "GCC_C_LANGUAGE_STANDARD", "gnu11");
pbxProject.SetBuildProperty(frameworkTargetGuid, "GCC_C_LANGUAGE_STANDARD", "gnu11");pbxProject.AddFrameworkToProject(frameworkTargetGuid, "Photos.framework", false);// info.plist 设置var plistPath = Path.Combine(iosProjectPath, "Info.plist");var plist = new PlistDocument();plist.ReadFromString(File.ReadAllText(plistPath, Encoding.ASCII));plist.root.values.Add("NSPhotoLibraryUsageDescription", new PlistElementString("We will use this permission if the child sends lessons and feedback through the album."));plist.root.values.Add("ITSAppUsesNonExemptEncryption", new PlistElementBoolean(false));AddPlistElementDict(plist,"NSAppTransportSecurity","NSAllowsArbitraryLoads",new PlistElementBoolean(true));

六、操作完后要写回文件，否则无效

File.WriteAllText(plistPath, plist.WriteToString());

七 、总结

string pbxProjectPath = PBXProject.GetPBXProjectPath(path);pbxProject = new PBXProject();pbxProject.ReadFromString(File.ReadAllText(pbxProjectPath));mainTarget = pbxProject.GetUnityMainTargetGuid();//这个对应target中的Unity-iPhoneframeworkTarget = pbxProject.GetUnityFrameworkTargetGuid();//这个对应target中UnityFramework//...//你的操作//...pbxProject.WriteToFile(pbxProjectPath);　　//操作完后要写回文件，否则无效