iOS NSBundle常用方法及解释

1、使用类方法创建一个NSBundler对象

+ (NSBundle *)mainBundle;

eg:

[NSBundle mailBundle];

2、使用路径获取一个NSBundle对象,这个路径应该是一个目录的全路径

+ (NSBundle *)bundleWithPath:(NSString *)path;

eg:

NSString *path = [mailBundle resourcePath];
NSBundle *language = [NSBundle bundleWithPath:path];

3、使用路径初始化一个NSBundle

- (id)initWithPath:(NSString *)path;

4、使用一个url创建并初始化一个NSBundle对象(这是一个类方法)
注:这里的url是一个特殊的文件url路径

+ (NSBundle *)bundleWithURL:(NSURL *)url

5、使用一个url初始化一个NSBundle对象
注:这里的url是一个特殊的文件url路径

- (id)initWithURL:(NSURL *)url

6、根据一个特殊的class获取NSBundle

+ (NSBundle *)bundleForClass:(Class)aClass;

eg: 根据当前的class获取一个NSBundle

// 获取当前类的NSBundle
NSBundle *bud = [NSBundle bundleForClass:[self class]];
NSLog(@"bud==%@",bud);

输出结果如下:

NSBundle </Users/ctrip1/Library/Application Support/iPhone Simulator/6.1/Applications/2F3DA58F-5CF9-48A2-ADB2-C923A29B519E/IOS_Example_NSBundle.app>

7、获取特定名称的bundle

+ (NSBundle *)bundleWithIdentifier:(NSString *)identifier;

8、使用NSBundle获取所有的bundle信息(由于ios安全沙盒的限制，所有的获取的资源，是应用程序的资源)
注：官方标注，获取所有的非framework的bundle;

+ (NSArray *)allBundles;

eg:

NSArray *array = [NSBundle allBundles];
NSLog(@"array===%@",array);

打印的结果如下:

array===("NSBundle </Users/ctrip1/Library/Application Support/iPhone Simulator/6.1/Applications/2F3DA58F-5CF9-48A2-ADB2-C923A29B519E/IOS_Example_NSBundle.app> (loaded)"
)

9、获取应用程序加载的所有framework的资源，

+ (NSArray *)allFrameworks;

eg:

NSArray *array = [NSBundle allFrameworks];
NSLog(@"%@",array);

输出的结果如下:

  "NSBundle </Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator6.1.sdk/System/Library/PrivateFrameworks/XPCObjects.framework> (loaded)",</Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator6.1.sdk/System/Library/PrivateFrameworks/ProofReader.framework> (loaded)","NSBundle </Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator6.1.sdk/System/Library/PrivateFrameworks/CommonUtilities.framework> (loaded)","NSBundle </Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator6.1.sdk/System/Library/PrivateFrameworks/PrintKit.framework> (loaded)","NSBundle </Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator6.1.sdk/System/Library/Frameworks/MobileCoreServices.framework> (loaded)","NSBundle </Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator6.1.sdk/usr/lib/system> (loaded)","NSBundle </Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator6.1.sdk/System/Library/Frameworks/UIKit.framework> (loaded)","NSBundle </Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator6.1.sdk/System/Library/PrivateFrameworks/DataMigration.framework> (loaded)","NSBundle </Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator6.1.sdk/System/Library/PrivateFrameworks/FaceCoreLight.framework> (loaded)","NSBundle </Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator6.1.sdk/System/Library/PrivateFrameworks/AppSupport.framework> (loaded)","NSBundle </Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator6.1.sdk/System/Library/PrivateFrameworks/AssetsLibraryServices.framework> (loaded)","NSBundle </Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator6.1.sdk/System/Library/PrivateFrameworks/BackBoardServices.framework> (loaded)","NSBundle </Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator6.1.sdk/System/Library/Frameworks/CoreImage.framework> (loaded)","NSBundle </Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator6.1.sdk/System/Library/PrivateFrameworks/MobileInstallation.framework> (loaded)",
)

10、判断bundle加载,(按照官方文档，You don’t need to load a bundle’s executable code to search the bundle’s resources.我们不需要调用这个方法,)

- (BOOL)load;

11、判断bundle加载

- (BOOL)isLoaded;

12、判断bundle加载

- (BOOL)unload;

13、加载资源，如果有错误的话，会放置错误信息

- (BOOL)preflightAndReturnError:(NSError **)error
- (BOOL)loadAndReturnError:(NSError **)error

14、获取bundle类实例的url

- (NSURL *)bundleURL

15、获取bundle类实例的resourceUrl资源

- (NSURL *)resourceURL

16、获取bundle类实例的可执行的URL

- (NSURL *)executableURL

17、（Returns the file URL of the executable with the specified name in the receiver’s bundle.返回一个,文件的URL，使用一个特殊的名称）

- (NSURL *)URLForAuxiliaryExecutable:(NSString *)executableName

18、获取当前NSBundle实例的URL资源

- (NSURL *)privateFrameworksURL

19、获取共享的frameworkdURL

- (NSURL *)sharedFrameworksURL

20、获取支持的Bundle的Url

- (NSURL *)sharedSupportURL

21、获取添加插件的URL

- (NSURL *)builtInPlugInsURL
// 已经不能使用，
- (NSURL *)appStoreReceiptURL

22、获取bundle的path路径

- (NSString *)bundlePath;

23、获取bundle的资源路径字符串

- (NSString *)resourcePath;

24、获取bundle可执行文件路径

- (NSString *)executablePath;

25、获取bundle辅助的path

- (NSString *)pathForAuxiliaryExecutable:(NSString *)executableName;

26、获取私有的路径框架

- (NSString *)privateFrameworksPath;

27、获取共享的framework path路径

- (NSString *)sharedFrameworksPath;

28、获取共享的路径

- (NSString *)sharedSupportPath;

29、获取插件的路径

- (NSString *)builtInPlugInsPath;// 已经废弃，不能调用
+ (NSURL *)URLForResource:(NSString *)name withExtension:(NSString *)ext subdirectory:(NSString *)subpath inBundleWithURL:(NSURL *)bundleURL
// 已经废弃
+ (NSArray *)URLsForResourcesWithExtension:(NSString *)ext subdirectory:(NSString *)subpath inBundleWithURL:(NSURL *)bundleURL

30、使用bundle创建一个资源文件的URL

- (NSURL *)URLForResource:(NSString *)name withExtension:(NSString *)ext

eg:

NSURL* URL=[[NSBundle mainBundle] URLForResource:fileName withExtension:@"png"];

31、(官方描述如下：Returns the file URL for the resource file identified by the specified name and extension and residing in a given bundle directory.
使用资源文件的名称以及扩展名，还有子路径)

- (NSURL *)URLForResource:(NSString *)name withExtension:(NSString *)ext subdirectory:(NSString *)subpath

32、(官方描述:
Returns the file URL for the resource identified by the specified name and file extension,
located in the specified bundle subdirectory, and limited to global resources and those associated with the specified localization.)
同上一个方法，不同的是添加了本地资源文件的信息

- (NSURL *)URLForResource:(NSString *)name withExtension:(NSString *)ext subdirectory:(NSString *)subpath localization:(NSString *)localizationName

33、根据文件的后缀名称和子目录，获取一个NSURL 的数组

- (NSArray *)URLsForResourcesWithExtension:(NSString *)ext subdirectory:(NSString *)subpath

34、同上面的方法，添加了本地化的一个资源文件

- (NSArray *)URLsForResourcesWithExtension:(NSString *)ext subdirectory:(NSString *)subpath localization:(NSString *)localizationName

35、根据资源文件的名称，或者是文件的后缀名称以及目录的路径，获取path

+ (NSString *)pathForResource:(NSString *)name ofType:(NSString *)ext inDirectory:(NSString *)bundlePath;

36、根据文件的扩展名，以及资源的路径，获取一个数组

+ (NSArray *)pathsForResourcesOfType:(NSString *)ext inDirectory:(NSString *)bundlePath;

37、根据文件的名称和扩展名获取path名称

- (NSString *)pathForResource:(NSString *)name ofType:(NSString *)ext;

37、根据文件的名称和扩展名获取path名称

- (NSString *)pathForResource:(NSString *)name ofType:(NSString *)ext inDirectory:(NSString *)subpath;

37、根据文件的名称和扩展名获取path名称

- (NSString *)pathForResource:(NSString *)name ofType:(NSString *)ext inDirectory:(NSString *)subpath forLocalization:(NSString *)localizationName;

38、根据文件的扩展名和子目录获取一个资源文件的数组

- (NSArray *)pathsForResourcesOfType:(NSString *)ext inDirectory:(NSString *)subpath;

39、同上，添加了资源文件的一个路径

- (NSArray *)pathsForResourcesOfType:(NSString *)ext inDirectory:(NSString *)subpath forLocalization:(NSString *)localizationName;

40、方法调用解释如下

- (NSString *)localizedStringForKey:(NSString *)key value:(NSString *)value table:(NSString *)tableName NS_FORMAT_ARGUMENT(1);

你可以通过NSBundle来找到对应key值的vaule.

NSBundle *main = [NSBundle mainBundle];
NSString *aString = [main localizedStringForKey:@"Key1"value:@"DefaultValue1"table:@"Find"];

上面的代码会在Find.strings中查找"Key1"对应的vuale字符串. 如果没有提供用户指定的语言的本地化资源,那么就会查找第二个所选语言,如果第二个也没有本地化资源,就依次找下去. 如果到最后还是没有找到,那么 "DefaultValue1"将会返回

// 返回当前bundle的唯一标示:(即：应用的唯一标示)
- (NSString *)bundleIdentifier;

eg:

com.company.ios-Example-NSBundle.IOS-Example-NSBundle

// 获取资源文件的dictionary 对象
- (NSDictionary *)infoDictionary;

eg:

{CFBundleDevelopmentRegion = en;CFBundleDisplayName = "IOS_Example_NSBundle";CFBundleExecutable = "IOS_Example_NSBundle";CFBundleExecutablePath = "/Users/ctrip1/Library/Application Support/iPhone Simulator/6.1/Applications/2F3DA58F-5CF9-48A2-ADB2-C923A29B519E/IOS_Example_NSBundle.app/IOS_Example_NSBundle";CFBundleIdentifier = "com.company.ios-Example-NSBundle.IOS-Example-NSBundle";CFBundleInfoDictionaryVersion = "6.0";CFBundleInfoPlistURL = "Info.plist -- file://localhost/Users/ctrip1/Library/Application%20Support/iPhone%20Simulator/6.1/Applications/2F3DA58F-5CF9-48A2-ADB2-C923A29B519E/IOS_Example_NSBundle.app/";CFBundleName = "IOS_Example_NSBundle";CFBundlePackageType = APPL;CFBundleShortVersionString = "1.0";CFBundleSignature = "????";CFBundleSupportedPlatforms =   (iPhoneSimulator);CFBundleVersion = "1.0";DTPlatformName = iphonesimulator;DTSDKName = "iphonesimulator6.1";LSRequiresIPhoneOS = 1;NSBundleInitialPath = "/Users/ctrip1/Library/Application Support/iPhone Simulator/6.1/Applications/2F3DA58F-5CF9-48A2-ADB2-C923A29B519E/IOS_Example_NSBundle.app";NSBundleResolvedPath = "/Users/ctrip1/Library/Application Support/iPhone Simulator/6.1/Applications/2F3DA58F-5CF9-48A2-ADB2-C923A29B519E/IOS_Example_NSBundle.app";UIDeviceFamily =   (1,2);UIRequiredDeviceCapabilities =   (armv7);UISupportedInterfaceOrientations =   (UIInterfaceOrientationPortrait,UIInterfaceOrientationLandscapeLeft,UIInterfaceOrientationLandscapeRight);
}

41、返回本地化资源的NSDictionary对象

- (NSDictionary *)localizedInfoDictionary;

42、根据key值获取本地化资源对象的值

- (id)objectForInfoDictionaryKey:(NSString *)key;

43、（官方描述：Returns the Class object for the specified name.根据类名字符串获取一个类对象）

- (Class)classNamed:(NSString *)className;

44、返回主要的类

- (Class)principalClass;

45、返回本地化资源的列表

- (NSArray *)localizations;

46、本地化的语言列表

- (NSArray *)preferredLocalizations;

47、使用创建的类获取本地化语言

- (NSString *)developmentLocalization;

48、(官方描述 Returns one or more localizations from the specified list that a bundle object would use to locate resources for the current user.)

+ (NSArray *)preferredLocalizationsFromArray:(NSArray *)localizationsArray;
+ (NSArray *)preferredLocalizationsFromArray:(NSArray *)localizationsArray forPreferences:(NSArray *)preferencesArray;

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