1、获取info.plist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（手机显示名称）：Bundle display name

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

应用名称（.api显示名称，建议不修改）：Bundle name

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

2、应用程序语言本地化

app本地化宏定义(Localizable.strings默认文件)

#define NSLocalizedString(key, comment) \

[[NSBundle mainBundle] localizedStringForKey:(key) value:@"" table:nil]

#define NSLocalizedStringFromTable(key, tbl, comment) \

[[NSBundle mainBundle] localizedStringForKey:(key) value:@"" table:(tbl)]

#define NSLocalizedStringFromTableInBundle(key, tbl, bundle, comment) \

[bundle localizedStringForKey:(key) value:@"" table:(tbl)]

#define NSLocalizedStringWithDefaultValue(key, tbl, bundle, val, comment) \

[bundle localizedStringForKey:(key) value:(val) table:(tbl)]

键值设置（例如：中英文两个Localizable.strings文件中键值）

//英语Localizable.strings(English)文件

"你好" ＝ "hello";

//简体中文Localizable.strings(Simplified)文件

"你好" ＝ "你好";

宏的使用：(返回NSString *)

//comment为注释，可传可不传不影响返回

NSLocalizedString(@"你好",  nil)

//other表示查询other.strings文件

NSLocalizedStringFromTable(@"你好", @"other", nil)

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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Main.bundle

NSString* path = [resPath stringByAppendingPathComponent:@"Main.bundle"];

NSBundle *bundle = [NSBundle bundleWithPath:path];

获取app包的wordbook.txt文件路径

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