iOS NSBundle 使用方法

1、[NSBundle mainBundle]，文件夹其实是Group，如左侧的树形文件管理器

Build之后，文件直接就复制到了根目录下，于是读取的方法，应该是这样：

NSString *earth = [[NSBundle mainBundle] pathForResource:@"Brad Cox" ofType:@"png"];

2、使用文件夹的时候，Build结果

依然使用同样的方法，不需要制定文件夹路径

//inDirectory参数可有可无

NSString *earth = [[NSBundle mainBundle] pathForResource:@"Matthijs" ofType:@"png" inDirectory:@"Images/MoreImages"]; 
NSString *earth = [[NSBundle mainBundle] pathForResource:@"Matthijs" ofType:@"png"];

 

编译之后，mainBundle的资源都是放到RootFolder下，所以，可以直接访问，不要指定内部路径

 

3、使用其他的Bundle

 

NSString *resourceBundle = [[NSBundle mainBundle] pathForResource:@"Resources" ofType:@"bundle"];

    NSLog(@"resourceBundle: %@", resourceBundle);

    NSString *earth = [[NSBundlebundleWithPath:resourceBundle] pathForResource:@"Matthijs"ofType:@"jpg"inDirectory:@"Images/MoreImages"];

 

    NSLog(@"path: %@", earth);

使用Custom bundle，访问内部的子文件夹，需要指定inDirectory参数，这个mainBundle不同，这是为何？

注意：Since

bundles other than the main bundle can have folders embedded inside them, to access

files inside folders of a bundle other than the main bundle it is best to use the pathFor

Resource:ofType:inDirectory: method of NSBundle to explicitly specify the folder in

which a specific file/resource exists.

 

原文链接：http://www.cnblogs.com/iihe602/archive/2013/01/17/2865280.html

其他一些NSBundle函数的使用

1.获取app的info.plist详细信息

版本号：Bundle version

 NSString *version = [[[NSBundle mainBundle] infoDictionary] objectForKey:@"CFBundleVersion"];

应用标识：Bundle identifier

NSString *bundleId = [[[NSBundle mainBundle] infoDictionary] objectForKey:@"CFBundleIdentifier"];

应用名称：Bundle display name

NSString *appName = [[NSBundle mainBundle] objectForInfoDictionaryKey:@"CFBundleDisplayName"];

Bundle name

NSString *appName = [[NSBundle mainBundle] objectForInfoDictionaryKey:@"CFBundleName"];

 

2.应用程序语言本地化

app本地化宏

#define XLocalizedString(key, comment)        [[NSBundle mainBundle] localizedStringForKey:(key) value:@"" table:nil]

中英文两个Localizable.strings文件中键值对，例如

"none" = "确定";

"none" = "none";

宏的用法：(返回NSString *)

localizedString("none", "这是注释")

 

3.获取包内文件路径和文件

获取app包路径

NSString *path = [[NSBundle mainBundle] bundlePath];

app资源目录路径

NSString *resPath = [[NSBundle mainBundle] resourcePath];

 

获取资源目录下a.bundle

NSString* path = [resPath stringByAppendingPathComponent:@"a.bundle"];
NSBundle *bundle = [NSBundle bundleWithPath:path];

 

获取app包的readme.txt文件路径

NSString *path = [[NSBundle mainBundle] pathForResource:@"readme" ofType:@"txt"];