iOS文件处理类
这是一个用来简化iOS中关于文件操作的一个类,所有方法都为类方法.
Source
File.h
//// File.h// FileManager//// http://home.cnblogs.com/u/YouXianMing///// Copyright (c) 2014年 YouXianMing All rights reserved.//#import#define FILE_PATH(filePath) [File path:(filePath)]#define ROOT_PATH [File rootPath]#define BUNDLE_PATH(fileName) [File bundleSource:(fileName)]#define CREATE_FOLDER(folderPath) [File createFolder:(folderPath)]#define FILE_EXIST(filePath) [File exist:(filePath)]#define IS_DIRECTORY(filePath) [File isDirectory:(filePath)]#define IS_FILE(filePath) ![File isDirectory:(filePath)]#define FILE_INFO(filePath) [File fileInfo:(filePath)]#define FILE_SIZE(filePath) [File fileSize:(filePath)]#define FILE_DICTIONARY(filePath) [File dictionaryFrom:(filePath)]#define FILE_ARRAY(filePath) [File arrayFrom:(filePath)]@interface File : NSObject/* 注意:凡是参数为 filePath folderPath 的全部为相对路径,用以下字符串拼接使用 /Documents /Library/Caches /Library/Preferences /tmp 其他都为绝对路径 */+ (NSString *)rootPath;+ (NSString *)bundleSource:(NSString *)fileName;+ (NSString *)path:(NSString *)filePath;+ (BOOL)createFolder:(NSString *)filePath;+ (BOOL)exist:(NSString *)filePath;+ (BOOL)isDirectory:(NSString *)filePath;+ (NSDictionary *)fileInfo:(NSString *)filePath;+ (int)fileSize:(NSString *)filePath;+ (NSArray *)enumeratorFolder:(NSString *)folderPath;+ (void)enumeratorFolder:(NSString *)folderPath each:(void (^)(NSString *path))each;+ (BOOL)copyFrom:(NSString *)sourcePath to:(NSString *)targetPath;+ (BOOL)moveFrom:(NSString *)sourcePath to:(NSString *)targetPath;+ (BOOL)remove:(NSString *)targetPath;+ (BOOL)writePlist:(id)plist to:(NSString *)filePath;+ (NSMutableDictionary *)dictionaryFrom:(NSString *)filePath;+ (NSMutableArray *)arrayFrom:(NSString *)filePath;+ (void)path:(NSString *)filePath dictionary:(void (^)(NSMutableDictionary *dictionary))dictionary;+ (void)path:(NSString *)filePath array:(void (^)(NSMutableArray *array))array;@end
File.m
//// File.m// FileManager//// http://home.cnblogs.com/u/YouXianMing///// Copyright (c) 2014年 YouXianMing All rights reserved.//#import "File.h"static NSString *_sandBoxPath = nil;@implementation File+ (void)initialize{ if (self == [File class]) { _sandBoxPath = NSHomeDirectory(); }}+ (NSString *)rootPath{ return _sandBoxPath;}+ (NSString *)path:(NSString *)filePath{ return [_sandBoxPath stringByAppendingPathComponent:filePath];}+ (BOOL)createFolder:(NSString *)filePath{ return [[NSFileManager defaultManager] createDirectoryAtPath:[self path:filePath] withIntermediateDirectories:YES attributes:nil error:nil];}+ (NSString *)bundleSource:(NSString *)fileName{ return [[NSBundle mainBundle] pathForResource:fileName ofType:nil];}+ (BOOL)exist:(NSString *)filePath{ return [[NSFileManager defaultManager] fileExistsAtPath:[self path:filePath] isDirectory:NO];}+ (BOOL)isDirectory:(NSString *)filePath{ BOOL isDirectory = NO; [[NSFileManager defaultManager] fileExistsAtPath:[self path:filePath] isDirectory:&isDirectory]; return isDirectory;}+ (BOOL)copyFrom:(NSString *)sourcePath to:(NSString *)targetPath{ return [[NSFileManager defaultManager] copyItemAtPath:sourcePath toPath:targetPath error:nil];}+ (BOOL)moveFrom:(NSString *)sourcePath to:(NSString *)targetPath{ return [[NSFileManager defaultManager] moveItemAtPath:sourcePath toPath:targetPath error:nil];}+ (BOOL)remove:(NSString *)targetPath{ return [[NSFileManager defaultManager] removeItemAtPath:targetPath error:nil];}+ (NSArray *)enumeratorFolder:(NSString *)folderPath{ if ([self isDirectory:folderPath]) { NSMutableArray *storeArray = [NSMutableArray array]; NSString *docsDir = [NSHomeDirectory() stringByAppendingPathComponent:folderPath]; NSFileManager *localFileManager = [[NSFileManager alloc] init]; NSDirectoryEnumerator *dirEnum = [localFileManager enumeratorAtPath:docsDir]; NSString *file; while ((file = [dirEnum nextObject])) { [storeArray addObject:[folderPath stringByAppendingPathComponent:file]]; } return storeArray; } else { return nil; }}+ (void)enumeratorFolder:(NSString *)folderPath each:(void (^)(NSString *path))each{ if ([self isDirectory:folderPath]) { NSMutableArray *storeArray = [NSMutableArray array]; NSString *docsDir = [NSHomeDirectory() stringByAppendingPathComponent:folderPath]; NSFileManager *localFileManager = [[NSFileManager alloc] init]; NSDirectoryEnumerator *dirEnum = [localFileManager enumeratorAtPath:docsDir]; NSString *file; while ((file = [dirEnum nextObject])) { [storeArray addObject:[folderPath stringByAppendingPathComponent:file]]; } [storeArray enumerateObjectsUsingBlock:^(id obj, NSUInteger idx, BOOL *stop) { each(obj); }]; }}+ (NSDictionary *)fileInfo:(NSString *)filePath{ return [[NSFileManager defaultManager] attributesOfItemAtPath:[self path:filePath] error:nil];}+ (int)fileSize:(NSString *)filePath{ return [[[[NSFileManager defaultManager] attributesOfItemAtPath:[self path:filePath] error:nil] \ objectForKey:@"NSFileSize"] intValue];}+ (BOOL)writePlist:(id)plist to:(NSString *)filePath{ if ([plist isKindOfClass:[NSDictionary class]]) { NSDictionary *point = plist; return [point writeToFile:[self path:filePath] atomically:YES]; } else if ([plist isKindOfClass:[NSArray class]]) { NSArray *point = plist; return [point writeToFile:[self path:filePath] atomically:YES]; } else { return NO; }}+ (NSMutableDictionary *)dictionaryFrom:(NSString *)filePath{ NSMutableDictionary *dictionary = \ [[NSMutableDictionary alloc] initWithContentsOfFile:[self path:filePath]]; return dictionary;}+ (NSMutableArray *)arrayFrom:(NSString *)filePath{ NSMutableArray *array = \ [[NSMutableArray alloc] initWithContentsOfFile:[self path:filePath]]; return array;}+ (void)path:(NSString *)filePath dictionary:(void (^)(NSMutableDictionary *dictionary))dictionary{ NSMutableDictionary *sourceDictionary = \ [[NSMutableDictionary alloc] initWithContentsOfFile:[self path:filePath]]; dictionary(sourceDictionary); [sourceDictionary writeToFile:[self path:filePath] atomically:YES];}+ (void)path:(NSString *)filePath array:(void (^)(NSMutableArray *array))array{ NSMutableArray *sourceArray = \ [[NSMutableArray alloc] initWithContentsOfFile:[self path:filePath]]; array(sourceArray); [sourceArray writeToFile:[self path:filePath] atomically:YES];}@end
Usage
获取沙盒中Documents目录下的一个文本文件YouXianMing.txt
判断这个沙盒中Documents目录下的一个文本文件YouXianMing.txt是否存在
判断沙盒中Documents目录下的一个文本文件YouXianMing.txt是否为一个文件
沙盒中Documents目录下的一个文本文件YouXianMing.txt的大小
读取/Library/Preferences目录下的一个字典类型的plist文件YouXianMing.plist
在沙盒根目录下创建文件夹层级结构/A/B/C
将根目录下的A文件夹以及子文件夹拷贝到Documents下的A文件夹当中
将集合(数组或者字典)写到/Library/Preferences下的tmp.plist当中
读取/Library/Preferences目录下的tmp.plist,修改其中的一个值并保存
没举例子的自己试一下就知道了.
so easy :) enjoy it.