获取应用名字、版本号

项目有些需求可能需要获取项目的名字，这里只是简单的写下自己的想法

项目名字、版本号等属性是plist文件形式维护的，需要拿到bundle文件中管理各种属性的字典，根据相应的key去获取对应的值。

[[NSBundle mainBundle] infoDictionary];

打印其数据:

{
     BuildMachineOSBuild = 15G1217;
     CFBundleDevelopmentRegion = en;
     CFBundleExecutable = GetAppName;
     CFBundleIdentifier = "com.cai.GetAppName";
     CFBundleInfoDictionaryVersion = "6.0";
     CFBundleName = GetAppName;
     CFBundleNumericVersion = 16809984;
     CFBundlePackageType = APPL;
     CFBundleShortVersionString = "1.0";
     CFBundleSupportedPlatforms =     (
     iPhoneSimulator
     );
     CFBundleVersion = 1;
     DTCompiler = "com.apple.compilers.llvm.clang.1_0";
     DTPlatformBuild = "";
     DTPlatformName = iphonesimulator;
     DTPlatformVersion = "10.2";
     DTSDKBuild = 14C89;
     DTSDKName = "iphonesimulator10.2";
     DTXcode = 0821;
     DTXcodeBuild = 8C1002;
     LSRequiresIPhoneOS = 1;
     MinimumOSVersion = "10.2";
     UIDeviceFamily =     (
     1
     );
     UILaunchStoryboardName = LaunchScreen;
     UIMainStoryboardFile = Main;
     UIRequiredDeviceCapabilities =     (
     armv7
     );
     UISupportedInterfaceOrientations =     (
     UIInterfaceOrientationPortrait,
     UIInterfaceOrientationLandscapeLeft,
     UIInterfaceOrientationLandscapeRight
     );
     }

//CFBundleExecutable    -> 获取项目工程名
//CFBundleIdentifier    -> 获取应用唯一标识
//CFBundleName          -> 获取项目工程名
//CFBundleShortVersionString    -> 获取应用版本号 (App Store上版本号 -> Version)
//CFBundleVersion               -> 获取应用内部版本号(Build)

默认

新建一个项目，工程名设置为: GetAppName，其他不做任何修改，输出相关key的值:

NSLog(@"--%@--%@--%@", [[NSBundle mainBundle] objectForInfoDictionaryKey:@"CFBundleName"], [[NSBundle mainBundle] objectForInfoDictionaryKey:@"CFBundleExecutable"], [[NSBundle mainBundle] objectForInfoDictionaryKey:@"CFBundleDisplayName"]);

Output:

--GetAppName--GetAppName--(null) --> 因为Display Name未设置 则不存在此key的值

仅设置Display Name

//1. Display Name不为空: --> 工程 -> TARGETS -> General -> Identity -> Display Name: -创作你的创作
    NSLog(@"-%@", [[NSBundle mainBundle] objectForInfoDictionaryKey:@"CFBundleDisplayName"]);
    //输出: --创作你的创作

仅设置Info.plist中Bundle name的值为中文

//2. Display Name 为空: --> Info.plist文件中Bundle name的值修改app名字为中文 例如: 
    NSDictionary *appInfo = [[NSBundle mainBundle] infoDictionary];
    NSLog(@"%@", [appInfo objectForKey:(NSString *)kCFBundleNameKey]);
    //输出:

既设置Info.plist中Bundle name的值为中文又设置Display Name

//3.Info.plist文件中Bundle name的值修改app名字为中文 例如:  并且 修改设置Display Name: -创作你的创作
    NSLog(@"--%@--%@--%@", [[NSBundle mainBundle] objectForInfoDictionaryKey:@"CFBundleName"], [[NSBundle mainBundle] objectForInfoDictionaryKey:@"CFBundleExecutable"], [[NSBundle mainBundle] objectForInfoDictionaryKey:@"CFBundleDisplayName"]);
    //输出: ----GetAppName---创作你的创作

PS: 两者均设置的情况下，手机界面显示的应用名字和Display Name设置的名字保持一致。

建议使用仅设置Info.plist中Bundle name的值的方式设置应用名字，这样在获取应用名字的时候，防止使用CFBundleDisplayName不存在造成获取值为空。