基于NSString处理文件的高级类

http://www.cnblogs.com/YouXianMing/p/4129168.html

 

我已经把处理文件的类简化到了变态的程度,如果你还有更简洁的方法,请告知我,谢谢!

使用详情:

源码:

//
//  NSString+File.h
//  MasterCode
//
//  Created by YouXianMing on 14/11/28.
//  Copyright (c) 2014年 YouXianMing. All rights reserved.
//

#import <Foundation/Foundation.h>
#import <UIKit/UIKit.h>

@interface NSString (File)

/**
 *  沙盒文件路径
 *
 *  /Documents
 *  /Library/Caches
 *  /Library/Preferences
 *  /tmp
 *
 *  @return 沙盒文件路径
 */
- (NSString *)path;

/**
 *  bundel文件路径
 *
 *  @return bundel文件路径
 */
- (NSString *)bundleFile;

/**
 *  bundle图片
 *
 *  @return bundle图片
 */
- (UIImage *)bundleImage;

/**
 *  检测文件或者文件夹是否存在
 *
 *  @return YES 存在, NO 不出在
 */
- (BOOL)exist;

/**
 *  创建文件夹
 *
 *  @return YES 成功, NO 失败
 */
- (BOOL)createFolder;

/**
 *  是否是文件夹
 *
 *  @return YES 是, NO 不是
 */
- (BOOL)isDirectory;

/**
 *  复制到这个路径
 *
 *  @param path 目的路径
 *
 *  @return YES 成功, NO 失败
 */
- (BOOL)copyTo:(NSString *)path;

/**
 *  移动到这个路径
 *
 *  @param path 目的路径
 *
 *  @return YES 成功, NO 失败
 */
- (BOOL)moveTo:(NSString *)path;

/**
 *  删除文件
 *
 *  @return YES 成功, NO 失败
 */
- (BOOL)remove;

/**
 *  遍历出文件夹中的文件
 *
 *  @return 所有文件夹路径
 */
- (NSArray *)enumeratorFolder;

/**
 *  遍历出文件夹并在block中查看
 *
 *  @param block 可以查看path
 */
- (void)enumeratorFolderEach:(void (^)(NSString *path))block;

/**
 *  文件信息
 *
 *  @return 文件信息
 */
- (NSDictionary *)fileInfo;

/**
 *  文件大小
 *
 *  @return 文件大小
 */
- (int)fileSize;

@end

//
//  NSString+File.m
//  MasterCode
//
//  Created by YouXianMing on 14/11/28.
//  Copyright (c) 2014年 YouXianMing. All rights reserved.
//

#import "NSString+File.h"

@implementation NSString (File)

- (NSString *)path {
    return [NSHomeDirectory() stringByAppendingPathComponent:self];
}

- (NSString *)bundleFile {
    return [[NSBundle mainBundle] pathForResource:self
                                           ofType:nil];
}

- (UIImage *)bundleImage {
    return [UIImage imageNamed:self];
}

- (BOOL)exist {
    return [[NSFileManager defaultManager] fileExistsAtPath:[NSHomeDirectory() stringByAppendingPathComponent:self]
                                                isDirectory:nil];
}

- (BOOL)createFolder {
    return [[NSFileManager defaultManager] createDirectoryAtPath:[NSHomeDirectory() stringByAppendingPathComponent:self]
                                     withIntermediateDirectories:YES
                                                      attributes:nil
                                                           error:nil];
}

- (BOOL)isDirectory {
    BOOL isDirectory = NO;
    
    [[NSFileManager defaultManager] fileExistsAtPath:[NSHomeDirectory() stringByAppendingPathComponent:self]
                                         isDirectory:&isDirectory];
    
    return isDirectory;
}

- (BOOL)copyTo:(NSString *)path {
    return [[NSFileManager defaultManager] copyItemAtPath:[NSHomeDirectory() stringByAppendingPathComponent:self]
                                                   toPath:[NSHomeDirectory() stringByAppendingPathComponent:path]
                                                    error:nil];
}

- (BOOL)moveTo:(NSString *)path {
    return [[NSFileManager defaultManager] moveItemAtPath:[NSHomeDirectory() stringByAppendingPathComponent:self]
                                                   toPath:[NSHomeDirectory() stringByAppendingPathComponent:path]
                                                    error:nil];
}

- (BOOL)remove {
    return [[NSFileManager defaultManager] removeItemAtPath:[NSHomeDirectory() stringByAppendingPathComponent:self]
                                                      error:nil];
}

- (NSArray *)enumeratorFolder {
    if ([self isDirectory])
    {
        NSMutableArray *storeArray = [NSMutableArray array];
        
        NSString *docsDir = [NSHomeDirectory() stringByAppendingPathComponent:self];
        NSFileManager *localFileManager = [[NSFileManager alloc] init];
        NSDirectoryEnumerator *dirEnum = [localFileManager enumeratorAtPath:docsDir];
        
        NSString *file;
        while ((file = [dirEnum nextObject]))
        {
            [storeArray addObject:[[NSHomeDirectory() stringByAppendingPathComponent:self] stringByAppendingPathComponent:file]];
        }
        
        return storeArray;
    }
    else
    {
        return nil;
    }
}

- (void)enumeratorFolderEach:(void (^)(NSString *path))block {
    if ([self isDirectory])
    {
        NSMutableArray *storeArray = [NSMutableArray array];
        
        NSString *docsDir = [NSHomeDirectory() stringByAppendingPathComponent:self];
        NSFileManager *localFileManager = [[NSFileManager alloc] init];
        NSDirectoryEnumerator *dirEnum = [localFileManager enumeratorAtPath:docsDir];
        
        NSString *file;
        while ((file = [dirEnum nextObject]))
        {
            [storeArray addObject:[self stringByAppendingPathComponent:file]];
        }
        
        [storeArray enumerateObjectsUsingBlock:^(id obj, NSUInteger idx, BOOL *stop) {
            block(obj);
        }];
    }
}

- (NSDictionary *)fileInfo {
    return [[NSFileManager defaultManager] attributesOfItemAtPath:[NSHomeDirectory() stringByAppendingPathComponent:self]
                                                            error:nil];
}

- (int)fileSize {
    return [[[[NSFileManager defaultManager] attributesOfItemAtPath:[NSHomeDirectory() stringByAppendingPathComponent:self]
                                                              error:nil] \
             objectForKey:@"NSFileSize"] intValue];
}

@end