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Xcode工程文件project.pbxproj小結(jié)

簡(jiǎn)介

project.pbxproj 文件被包含于 Xcode 工程文件 *.xcodeproj 之中，存儲(chǔ)著 Xcode 工程的各項(xiàng)配置參數(shù)。它本質(zhì)上是一種舊風(fēng)格的 Property List 文件，歷史可追溯到 NeXT 的 OpenStep。由于有Xcode工具的存在，我們一般不需要與pbxproj直接打交道，通過General、Build Settungs或者Info等面板，就可以完成項(xiàng)目工程配置信息的修改。
一般格式如下：
數(shù)組用小括號(hào)括起來(lái)并用逗號(hào)隔開元素；字典用大括號(hào)括起來(lái)并用分號(hào)隔開鍵值對(duì)，鍵值之間用等號(hào)連接；二進(jìn)制數(shù)據(jù)用尖括號(hào)括起來(lái)
</br>
接下來(lái)我們就依據(jù)一個(gè)具體的project.pbxproj文件來(lái)看看文件的具體內(nèi)容；
首先使用Xcode新建一個(gè)項(xiàng)目文件，然后找到工程文件*.xcodeproj 郵件顯示包內(nèi)容就可以看到project.pbxproj文件，使用熟悉的編輯器打開，可以看到一些貌似混亂卻又組織嚴(yán)密的內(nèi)容。

文件的組織規(guī)則

對(duì)于NeXTSTEP格式的Property List 文件來(lái)說(shuō)，整個(gè)的project.pbxproj文件就是一個(gè)字典，里面最外層有5個(gè)鍵值對(duì)，key分別為：

archiveVersion  
classes  
objectVersion  
objects   
rootObject

其中重要的 Key 是 objects 和 rootObject。其他字段目前看來(lái)是固定的：

archiveVersion = 1;
classes = {
};
objectVersion = 46;

</br>
上面說(shuō)到這個(gè)文件看似混亂，實(shí)質(zhì)上卻是組織清晰，最好的方法就是順著 rootObject 的各個(gè)屬性對(duì)應(yīng)的 UUID 在 objects 中找到對(duì)應(yīng)的對(duì)象，然后一層層看下去。這樣整個(gè)文件的配置信息存放方式就慢慢摸清了（rootObject就好像一個(gè)入口函數(shù)），具體的配置實(shí)現(xiàn)是在 objects這個(gè)域里面的，里面每一項(xiàng)的又是一個(gè)字典，key是UUID，Value 依然是個(gè)字典。下面可以看到rootObject對(duì)應(yīng)的value也可以在objects中找到具體的值。objects 中的鍵值對(duì)被分成了若干個(gè) section，雖然 section 的順序是 Xcode 私有 API 欽定的，但每個(gè) section 內(nèi)部的鍵值對(duì)會(huì)根據(jù) Key 的字典序排列，以此增加可讀性。
此外，這里還要補(bǔ)充一下：
project.pbxproj文件使用UUID 作為交叉引用的索引，保證每個(gè)配置信息對(duì)象的唯一性。因?yàn)?UUID 根據(jù)機(jī)器硬件和時(shí)間戳生成，避免了多人在同一時(shí)間段操作修改工程文件帶來(lái)的問題。也就是說(shuō)工程中每項(xiàng)配置對(duì)象都有個(gè)唯一的 UUID，然后其他配置對(duì)象想引用某個(gè)配置對(duì)象直接使用它的 UUID 即可。這就跟我們編程時(shí)使用指針指向某個(gè)對(duì)象的地址一樣，其他對(duì)象的屬性想引用它，只需要給屬性傳個(gè)指針地址就行了。

下面我就從rootObject開始簡(jiǎn)單的走一遍，大概了解一下此文件的配置方式。

rootObject

rootObject = 662A377C1DB7D8B00038B7DB /* Project object */;

從注釋上就可以看出指向一個(gè)UUID為662A377C1DB7D8B00038B7DB的Project object字典

Project object

/* Begin PBXProject section */
    662A377C1DB7D8B00038B7DB /* Project object */ = {
        isa = PBXProject;
        attributes = {
            LastUpgradeCheck = 0800;
            ORGANIZATIONNAME = Apress;
            TargetAttributes = {
                662A37831DB7D8B00038B7DB = {
                    CreatedOnToolsVersion = 8.0;
                    ProvisioningStyle = Automatic;
                };
                662A379C1DB7D8B00038B7DB = {
                    CreatedOnToolsVersion = 8.0;
                    ProvisioningStyle = Automatic;
                    TestTargetID = 662A37831DB7D8B00038B7DB;
                };
                662A37A71DB7D8B00038B7DB = {
                    CreatedOnToolsVersion = 8.0;
                    ProvisioningStyle = Automatic;
                    TestTargetID = 662A37831DB7D8B00038B7DB;
                };
            };
        };
        buildConfigurationList = 662A377F1DB7D8B00038B7DB /* Build configuration list for PBXProject "HelloWorld" */;
        compatibilityVersion = "Xcode 3.2";
        developmentRegion = English;
        hasScannedForEncodings = 0;
        knownRegions = (
            en,
            Base,
        );
        mainGroup = 662A377B1DB7D8B00038B7DB;
        productRefGroup = 662A37851DB7D8B00038B7DB /* Products */;
        projectDirPath = "";
        projectRoot = "";
        targets = (
            662A37831DB7D8B00038B7DB /* HelloWorld */,
            662A379C1DB7D8B00038B7DB /* HelloWorldTests */,
            662A37A71DB7D8B00038B7DB /* HelloWorldUITests */,
        );
    };
/* End PBXProject section */

PBXProject顧名思義就是工程，對(duì)應(yīng)構(gòu)建可執(zhí)行的二進(jìn)制目標(biāo)程序或庫(kù)，里面包含了編譯工程所需的全部信息。
1、isa 可以把每個(gè)value看做一個(gè)對(duì)象，可以發(fā)現(xiàn)每一個(gè)value都有一個(gè)isa字段，代表value的類型。
2、attributes 屬性，包含一些編譯器的基本信息，版本，以及項(xiàng)目中的target，每一個(gè)target一個(gè)UUID其中，Xcode自動(dòng)創(chuàng)建的項(xiàng)目里面有三個(gè)target一個(gè)就是所要編譯的APP主target，其余兩個(gè)為test Target，可以看到其余兩個(gè)target中有一個(gè)字段TestTargetID指向主target，可以理解為依賴相關(guān)吧。
3、buildConfigurationList 配置列表指向一個(gè)配置字典 XCConfigurationList 類型類型（稍后講）
4、compatibilityVersion 應(yīng)該是兼容版本目前看來(lái)是 Xcode 3.2
5、developmentRegion 語(yǔ)言版本，English英語(yǔ)
6、hasScannedForEncodings 是否已經(jīng)掃描了文件編碼信息
7、knownRegions 不同區(qū)域的本地資源文件列表
8、mainGroup Xcode的文件組織形式，可以理解為文件層次 PBXGroup 類型
9、productRefGroup 編譯后的輸出文件 PBXGroup 類型
10、projectDirPath，projectRoot 項(xiàng)目路徑和項(xiàng)目的根目錄目前為空
11、targets 項(xiàng)目下的三個(gè)target對(duì)象 PBXNativeTarget類型

從上到下，我們來(lái)看一下所用的類型。

XCConfigurationList

/* Begin XCConfigurationList section */
    662A377F1DB7D8B00038B7DB /* Build configuration list for PBXProject "HelloWorld" */ = {
        isa = XCConfigurationList;
        buildConfigurations = (
            662A37AF1DB7D8B00038B7DB /* Debug */,
            662A37B01DB7D8B00038B7DB /* Release */,
        );
        defaultConfigurationIsVisible = 0;
        defaultConfigurationName = Release;
    };
    662A37B11DB7D8B00038B7DB /* Build configuration list for PBXNativeTarget "HelloWorld" */ = {
        isa = XCConfigurationList;
        buildConfigurations = (
            662A37B21DB7D8B00038B7DB /* Debug */,
            662A37B31DB7D8B00038B7DB /* Release */,
        );
        defaultConfigurationIsVisible = 0;
    };
    662A37B41DB7D8B00038B7DB /* Build configuration list for PBXNativeTarget "HelloWorldTests" */ = {
        isa = XCConfigurationList;
        buildConfigurations = (
            662A37B51DB7D8B00038B7DB /* Debug */,
            662A37B61DB7D8B00038B7DB /* Release */,
        );
        defaultConfigurationIsVisible = 0;
    };
    662A37B71DB7D8B00038B7DB /* Build configuration list for PBXNativeTarget "HelloWorldUITests" */ = {
        isa = XCConfigurationList;
        buildConfigurations = (
            662A37B81DB7D8B00038B7DB /* Debug */,
            662A37B91DB7D8B00038B7DB /* Release */,
        );
        defaultConfigurationIsVisible = 0;
    };
/* End XCConfigurationList section */

XCConfigurationList是一個(gè)構(gòu)建配置相關(guān)元素的列表，里面有一個(gè)項(xiàng)目文件（HelloWorld），三個(gè)target（HelloWorld、HelloWorldTests和HelloWorldUITests）對(duì)應(yīng)于你在Xcode界面中看到的這樣，如圖，每一個(gè)都有相對(duì)應(yīng)的配置屬性buildConfigurations，而每個(gè)配置屬性都有兩個(gè)的版本（Debug和Release）
那Debug和Release又對(duì)應(yīng)什么呢？是XCBuildConfiguration：

/* Begin XCBuildConfiguration section */
    662A37AF1DB7D8B00038B7DB /* Debug */ = {
        isa = XCBuildConfiguration;
        buildSettings = {
            ALWAYS_SEARCH_USER_PATHS = NO;
            CLANG_ANALYZER_NONNULL = YES;
            CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
            CLANG_CXX_LIBRARY = "libc++";
            CLANG_ENABLE_MODULES = YES;
            CLANG_ENABLE_OBJC_ARC = YES;
            CLANG_WARN_BOOL_CONVERSION = YES;
            CLANG_WARN_CONSTANT_CONVERSION = YES;
            CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
            CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
            CLANG_WARN_EMPTY_BODY = YES;
            CLANG_WARN_ENUM_CONVERSION = YES;
            CLANG_WARN_INFINITE_RECURSION = YES;
            CLANG_WARN_INT_CONVERSION = YES;
            CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
            CLANG_WARN_SUSPICIOUS_MOVES = YES;
            CLANG_WARN_UNREACHABLE_CODE = YES;
            CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
            "CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
            COPY_PHASE_STRIP = NO;
            DEBUG_INFORMATION_FORMAT = dwarf;
            ENABLE_STRICT_OBJC_MSGSEND = YES;
            ENABLE_TESTABILITY = YES;
            GCC_C_LANGUAGE_STANDARD = gnu99;
            GCC_DYNAMIC_NO_PIC = NO;
            GCC_NO_COMMON_BLOCKS = YES;
            GCC_OPTIMIZATION_LEVEL = 0;
            GCC_PREPROCESSOR_DEFINITIONS = (
                "DEBUG=1",
                "$(inherited)",
            );
            GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
            GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
            GCC_WARN_UNDECLARED_SELECTOR = YES;
            GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
            GCC_WARN_UNUSED_FUNCTION = YES;
            GCC_WARN_UNUSED_VARIABLE = YES;
            IPHONEOS_DEPLOYMENT_TARGET = 10.0;
            MTL_ENABLE_DEBUG_INFO = YES;
            ONLY_ACTIVE_ARCH = YES;
            SDKROOT = iphoneos;
        };
        name = Debug;
    };
    662A37B01DB7D8B00038B7DB /* Release */ = {
        isa = XCBuildConfiguration;
        buildSettings = {
            ALWAYS_SEARCH_USER_PATHS = NO;
            CLANG_ANALYZER_NONNULL = YES;
            CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
            CLANG_CXX_LIBRARY = "libc++";
            CLANG_ENABLE_MODULES = YES;
            CLANG_ENABLE_OBJC_ARC = YES;
            CLANG_WARN_BOOL_CONVERSION = YES;
            CLANG_WARN_CONSTANT_CONVERSION = YES;
            ·
            ·
            ·
            IPHONEOS_DEPLOYMENT_TARGET = 10.0;
            MTL_ENABLE_DEBUG_INFO = NO;
            SDKROOT = iphoneos;
            VALIDATE_PRODUCT = YES;
        };
        name = Release;
    };
      ·
      ·
      ·
/* End XCBuildConfiguration section */

XCBuildConfiguration構(gòu)建具體的配置元素，也就是Xcode的Build Setting面板中所涉及的選項(xiàng)。至于每個(gè)字段所代表的含義可再深入研究。

PBXGroup

/* Begin PBXGroup section */
    662A377B1DB7D8B00038B7DB = {
        isa = PBXGroup;
        children = (
            662A37861DB7D8B00038B7DB /* HelloWorld */,
            662A37A01DB7D8B00038B7DB /* HelloWorldTests */,
            662A37AB1DB7D8B00038B7DB /* HelloWorldUITests */,
            662A37851DB7D8B00038B7DB /* Products */,
        );
        sourceTree = "<group>";
    };
    662A37851DB7D8B00038B7DB /* Products */ = {
        isa = PBXGroup;
        children = (
            662A37841DB7D8B00038B7DB /* HelloWorld.app */,
            662A379D1DB7D8B00038B7DB /* HelloWorldTests.xctest */,
            662A37A81DB7D8B00038B7DB /* HelloWorldUITests.xctest */,
        );
        name = Products;
        sourceTree = "<group>";
    };
    662A37861DB7D8B00038B7DB /* HelloWorld */ = {
        isa = PBXGroup;
        children = (
            662A378A1DB7D8B00038B7DB /* AppDelegate.h */,
            662A378B1DB7D8B00038B7DB /* AppDelegate.m */,
            662A378D1DB7D8B00038B7DB /* ViewController.h */,
            662A378E1DB7D8B00038B7DB /* ViewController.m */,
            662A37901DB7D8B00038B7DB /* Main.storyboard */,
            662A37931DB7D8B00038B7DB /* Assets.xcassets */,
            662A37951DB7D8B00038B7DB /* LaunchScreen.storyboard */,
            662A37981DB7D8B00038B7DB /* Info.plist */,
            662A37871DB7D8B00038B7DB /* Supporting Files */,
        );
        path = HelloWorld;
        sourceTree = "<group>";
    };
    662A37871DB7D8B00038B7DB /* Supporting Files */ = {
        isa = PBXGroup;
        children = (
            662A37881DB7D8B00038B7DB /* main.m */,
        );
        name = "Supporting Files";
        sourceTree = "<group>";
    };
    662A37A01DB7D8B00038B7DB /* HelloWorldTests */ = {
        isa = PBXGroup;
        children = (
            662A37A11DB7D8B00038B7DB /* HelloWorldTests.m */,
            662A37A31DB7D8B00038B7DB /* Info.plist */,
        );
        path = HelloWorldTests;
        sourceTree = "<group>";
    };
    662A37AB1DB7D8B00038B7DB /* HelloWorldUITests */ = {
        isa = PBXGroup;
        children = (
            662A37AC1DB7D8B00038B7DB /* HelloWorldUITests.m */,
            662A37AE1DB7D8B00038B7DB /* Info.plist */,
        );
        path = HelloWorldUITests;
        sourceTree = "<group>";
    };
/* End PBXGroup section */

PBXGroup 文件組織形式文件的組織結(jié)構(gòu)，可以嵌套，可以看到子文件列表放在key為children的字典中value是一個(gè)數(shù)組，如果數(shù)組中的值指向的是一個(gè)文件夾類型的，則再生成一個(gè)字典，一直到底指向最初的文件，PBXFileReference類型

PBXFileReference

/* Begin PBXFileReference section */
    662A37841DB7D8B00038B7DB /* HelloWorld.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = HelloWorld.app; sourceTree = BUILT_PRODUCTS_DIR; };
    662A37881DB7D8B00038B7DB /* main.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = main.m; sourceTree = "<group>"; };
    662A378A1DB7D8B00038B7DB /* AppDelegate.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = AppDelegate.h; sourceTree = "<group>"; };
    662A378B1DB7D8B00038B7DB /* AppDelegate.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = AppDelegate.m; sourceTree = "<group>"; };
    ·
    ·
    ·
    662A37A81DB7D8B00038B7DB /* HelloWorldUITests.xctest */ = {isa = PBXFileReference; explicitFileType = wrapper.cfbundle; includeInIndex = 0; path = HelloWorldUITests.xctest; sourceTree = BUILT_PRODUCTS_DIR; };
    662A37AC1DB7D8B00038B7DB /* HelloWorldUITests.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = HelloWorldUITests.m; sourceTree = "<group>"; };
    662A37AE1DB7D8B00038B7DB /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
/* End PBXFileReference section */

PBXFileReference 項(xiàng)目所引用的每一個(gè)外部文件，比如源代碼文件、資源文件、庫(kù)文件、生成目標(biāo)文件等，每一個(gè)外部文件都可以在這里找到，也就是在Xcode的文件導(dǎo)航欄所看到的文件組織形式，如圖3。

productRefGroup

類似于mainGroup

PBXNativeTarget

/* Begin PBXNativeTarget section */
    662A37831DB7D8B00038B7DB /* HelloWorld */ = {
        isa = PBXNativeTarget;
        buildConfigurationList = 662A37B11DB7D8B00038B7DB /* Build configuration list for PBXNativeTarget "HelloWorld" */;
        buildPhases = (
            662A37801DB7D8B00038B7DB /* Sources */,
            662A37811DB7D8B00038B7DB /* Frameworks */,
            662A37821DB7D8B00038B7DB /* Resources */,
        );
        buildRules = (
        );
        dependencies = (
        );
        name = HelloWorld;
        productName = HelloWorld;
        productReference = 662A37841DB7D8B00038B7DB /* HelloWorld.app */;
        productType = "com.apple.product-type.application";
    };
    662A379C1DB7D8B00038B7DB /* HelloWorldTests */ = {
        isa = PBXNativeTarget;
        buildConfigurationList = 662A37B41DB7D8B00038B7DB /* Build configuration list for PBXNativeTarget "HelloWorldTests" */;
        buildPhases = (
            662A37991DB7D8B00038B7DB /* Sources */,
            662A379A1DB7D8B00038B7DB /* Frameworks */,
            662A379B1DB7D8B00038B7DB /* Resources */,
        );
        buildRules = (
        );
        dependencies = (
            662A379F1DB7D8B00038B7DB /* PBXTargetDependency */,
        );
        name = HelloWorldTests;
        productName = HelloWorldTests;
        productReference = 662A379D1DB7D8B00038B7DB /* HelloWorldTests.xctest */;
        productType = "com.apple.product-type.bundle.unit-test";
    };
    662A37A71DB7D8B00038B7DB /* HelloWorldUITests */ = {
        isa = PBXNativeTarget;
        buildConfigurationList = 662A37B71DB7D8B00038B7DB /* Build configuration list for PBXNativeTarget "HelloWorldUITests" */;
        buildPhases = (
            662A37A41DB7D8B00038B7DB /* Sources */,
            662A37A51DB7D8B00038B7DB /* Frameworks */,
            662A37A61DB7D8B00038B7DB /* Resources */,
        );
        buildRules = (
        );
        dependencies = (
            662A37AA1DB7D8B00038B7DB /* PBXTargetDependency */,
        );
        name = HelloWorldUITests;
        productName = HelloWorldUITests;
        productReference = 662A37A81DB7D8B00038B7DB /* HelloWorldUITests.xctest */;
        productType = "com.apple.product-type.bundle.ui-testing";
    };
  /* End PBXNativeTarget section */

PBXNativeTarget，對(duì)應(yīng)于生成的可執(zhí)行二進(jìn)制程序或庫(kù)文件的本地構(gòu)建目標(biāo)對(duì)象，也就是Xcode我們看到的這三個(gè)target目標(biāo)對(duì)象。里面的主要內(nèi)容是：
1、buildConfigurationList 這個(gè)我們?cè)谥v述PBXProject時(shí)已經(jīng)介紹過，是一個(gè)配置相關(guān)元素相關(guān)的列表。
2、buildPhases 構(gòu)建階段所涉及的源文件（PBXSourcesBuildPhase類型）、框架（PBXFrameworksBuildPhase類型）和資源（PBXResourcesBuildPhase）以數(shù)組形式組織。
3、buildRules 指定了不同文件類型該如何編譯
4、dependencies 列出了在Xcode build phase tab中列出的target依賴項(xiàng)
5、productReference 目標(biāo)文件（PBXFileReference）

PBXSourcesBuildPhase

/* Begin PBXSourcesBuildPhase section */
    662A37801DB7D8B00038B7DB /* Sources */ = {
        isa = PBXSourcesBuildPhase;
        buildActionMask = 2147483647;
        files = (
            662A378F1DB7D8B00038B7DB /* ViewController.m in Sources */,
            662A378C1DB7D8B00038B7DB /* AppDelegate.m in Sources */,
            662A37891DB7D8B00038B7DB /* main.m in Sources */,
        );
        runOnlyForDeploymentPostprocessing = 0;
    };
    662A37991DB7D8B00038B7DB /* Sources */ = {
        isa = PBXSourcesBuildPhase;
        buildActionMask = 2147483647;
        files = (
            662A37A21DB7D8B00038B7DB /* HelloWorldTests.m in Sources */,
        );
        runOnlyForDeploymentPostprocessing = 0;
    };
    662A37A41DB7D8B00038B7DB /* Sources */ = {
        isa = PBXSourcesBuildPhase;
        buildActionMask = 2147483647;
        files = (
            662A37AD1DB7D8B00038B7DB /* HelloWorldUITests.m in Sources */,
        );
        runOnlyForDeploymentPostprocessing = 0;
    };
/* End PBXSourcesBuildPhase section */

PBXSourcesBuildPhase 代表構(gòu)建階段需要復(fù)制的資源文件文件組織在key為files的value中的數(shù)組列表里，每個(gè)元素為PBXBuildFile類型。

PBXBuildFile

 /* Begin PBXBuildFile section */
    662A37891DB7D8B00038B7DB /* main.m in Sources */ = {isa = PBXBuildFile; fileRef = 662A37881DB7D8B00038B7DB /* main.m */; };
    662A378C1DB7D8B00038B7DB /* AppDelegate.m in Sources */ = {isa = PBXBuildFile; fileRef = 662A378B1DB7D8B00038B7DB /* AppDelegate.m */; };
    662A378F1DB7D8B00038B7DB /* ViewController.m in Sources */ = {isa = PBXBuildFile; fileRef = 662A378E1DB7D8B00038B7DB /* ViewController.m */; };
    662A37921DB7D8B00038B7DB /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 662A37901DB7D8B00038B7DB /* Main.storyboard */; };
    662A37941DB7D8B00038B7DB /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 662A37931DB7D8B00038B7DB /* Assets.xcassets */; };
    662A37971DB7D8B00038B7DB /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 662A37951DB7D8B00038B7DB /* LaunchScreen.storyboard */; };
    662A37A21DB7D8B00038B7DB /* HelloWorldTests.m in Sources */ = {isa = PBXBuildFile; fileRef = 662A37A11DB7D8B00038B7DB /* HelloWorldTests.m */; };
    662A37AD1DB7D8B00038B7DB /* HelloWorldUITests.m in Sources */ = {isa = PBXBuildFile; fileRef = 662A37AC1DB7D8B00038B7DB /* HelloWorldUITests.m */; };
/* End PBXBuildFile section */

PBXBuildFile 代表文件元素，被PBXBuildPhase等作為文件包含或被引用的資源，其實(shí)里面fileRef指向最終的文件PBXFileReference。

PBXFrameworksBuildPhase

/* Begin PBXFrameworksBuildPhase section */
    662A37811DB7D8B00038B7DB /* Frameworks */ = {
        isa = PBXFrameworksBuildPhase;
        buildActionMask = 2147483647;
        files = (
        );
        runOnlyForDeploymentPostprocessing = 0;
    };
    662A379A1DB7D8B00038B7DB /* Frameworks */ = {
        isa = PBXFrameworksBuildPhase;
        buildActionMask = 2147483647;
        files = (
        );
        runOnlyForDeploymentPostprocessing = 0;
    };
    662A37A51DB7D8B00038B7DB /* Frameworks */ = {
        isa = PBXFrameworksBuildPhase;
        buildActionMask = 2147483647;
        files = (
        );
        runOnlyForDeploymentPostprocessing = 0;
    };
/* End PBXFrameworksBuildPhase section */

PBXFrameworksBuildPhase用于framewrok構(gòu)建的鏈接階段

PBXResourcesBuildPhase

/* Begin PBXResourcesBuildPhase section */
    662A37821DB7D8B00038B7DB /* Resources */ = {
        isa = PBXResourcesBuildPhase;
        buildActionMask = 2147483647;
        files = (
            662A37971DB7D8B00038B7DB /* LaunchScreen.storyboard in Resources */,
            662A37941DB7D8B00038B7DB /* Assets.xcassets in Resources */,
            662A37921DB7D8B00038B7DB /* Main.storyboard in Resources */,
        );
        runOnlyForDeploymentPostprocessing = 0;
    };
    662A379B1DB7D8B00038B7DB /* Resources */ = {
        isa = PBXResourcesBuildPhase;
        buildActionMask = 2147483647;
        files = (
        );
        runOnlyForDeploymentPostprocessing = 0;
    };
    662A37A61DB7D8B00038B7DB /* Resources */ = {
        isa = PBXResourcesBuildPhase;
        buildActionMask = 2147483647;
        files = (
        );
        runOnlyForDeploymentPostprocessing = 0;
    };
  /* End PBXResourcesBuildPhase section */

PBXResourcesBuildPhase 構(gòu)建階段需要復(fù)制的資源文件，包括xib文件、故事板（storyboard）、圖片和plist文件等其他資源文件。鏈接至PBXBuildFile文件

到這里，整個(gè)project.pbxproj 文件基本走了一遍，我們也對(duì)整個(gè)文件的組織結(jié)構(gòu)有了一個(gè)初步的了解，里面有些字段的含義也許不是很清楚，但是并不影響我們對(duì)文件結(jié)構(gòu)的理解。如果想看更深的一步了解，可以參看這里。
Cocoapods正是通過它的組件Xcodeproj操作project.pbxproj文件來(lái)對(duì)工程結(jié)構(gòu)進(jìn)行修改。
最后附上一張整體的流程圖：

參考文獻(xiàn)：
1、聊聊 Xcode 項(xiàng)目文件中的 project.pbxproj
2、通過Xcodeproj深入探究Xcode工程文件一
3、Xcode工程文件的格式說(shuō)明
4、project.pbxproj，最熟悉的“陌生人”

三个男躁一个女,国精产品一区一手机的秘密,麦子交换系列最经典十句话,欧美国产综合欧美视频

Xcode工程文件project.pbxproj小結(jié)

Xcode工程文件project.pbxproj小結(jié)

Xcode工程文件project.pbxproj小結(jié)

簡(jiǎn)介

文件的組織規(guī)則

rootObject

Project object

XCConfigurationList

PBXGroup

PBXFileReference

productRefGroup

PBXNativeTarget

PBXSourcesBuildPhase

PBXBuildFile

PBXFrameworksBuildPhase

PBXResourcesBuildPhase

推薦閱讀更多精彩內(nèi)容

三个男躁一个女,国精产品一区一手机的秘密,麦子交换系列最经典十句话,欧美 国产 综合 欧美 视频

Xcode工程文件project.pbxproj小結(jié)

Xcode工程文件project.pbxproj小結(jié)

簡(jiǎn)介

文件的組織規(guī)則

rootObject

Project object

XCConfigurationList

PBXGroup

PBXFileReference

productRefGroup

PBXNativeTarget

PBXSourcesBuildPhase

PBXBuildFile

PBXFrameworksBuildPhase

PBXResourcesBuildPhase

推薦閱讀更多精彩內(nèi)容

三个男躁一个女,国精产品一区一手机的秘密,麦子交换系列最经典十句话,欧美国产综合欧美视频