#pragma mark - 获取沙盒目录 -
/**
获取沙盒Document目录
@return Document目录
*/
+ (NSString *)getDocumentDirectory;
/**
获取沙盒Library目录
@return Library目录
*/
+ (NSString *)getLibraryDirectory;
/**
获取沙盒Library/Caches目录
@return Library/Caches目录
*/
+ (NSString *)getCachesDirectory;
/**
获取沙盒Preference目录
@return Preference目录
*/
+ (NSString *)getPreferenceDirectory;
/**
获取沙盒Tmp目录
@return Tmp目录
*/
+ (NSString *)getTmpDirectory;
#pragma mark - 清除沙盒目录文件内容 -
/**
根据路径返回目录或文件的大小
@param path 文件目录
@return 目录文件大小
*/
+ (CGFloat)sizeWithFilePath:(NSString *)path;
/**
得到指定目录下的所有文件
@param dirPath 指定目录
@return 所有文件
*/
+ (NSArray *)getAllFileNames:(NSString *)dirPath;
/**
删除指定目录或文件
@param path 指定目录或文件
@return 删除结果
*/
+ (BOOL)clearCachesWithFilePath:(NSString *)path;
/**
清空指定目录下文件
@param dirPath 指定目录
@return 清除结果
*/
+ (BOOL)clearCachesFromDirectoryPath:(NSString *)dirPath;
/**
清理图片缓存
@return 图片缓存
*/
+ (void)clearCachesImage;
/**
清理网页缓存
@return 网页缓存
*/
+ (BOOL)clearCachesWeb;
/**
清理信息类
@return 信息类缓存
*/
+ (BOOL)clearCachesInfo;
/** 清理所有缓存 */
+ (void)clearAllCaches;
/**
获得缓存大小
@return 缓存大小
*/
+ (NSUInteger)getCachesSize;
/**
获取缓存大小字符串
@return 缓存大小字符串
*/
+ (NSString *)getCachesSizeString;
/** 创建cache/User文件夹 */
+ (void)createUserCacheFile;
/** 获取cache/User文件夹路径 */
+ (NSString *)getCacheUserPath;
#pragma mark - 缓存归档与解档 -
/** 归档群组列表 */
+ (void)archiveGroupList:(NSMutableArray *)groupArr;
/** 归档活动列表 */
+ (void)archiveActivityList:(NSMutableArray *)actArr;
/** 载入群组列表缓存 */
+ (NSMutableArray *)unarchiveGroupList;
/** 载入活动列表缓存 */
+ (NSMutableArray *)unachiveActivityList;
单例，方面快捷。
+ (NSFileManager *)initFileManager {
NSFileManager *manager;
if (manager == nil) {
manager = [NSFileManager defaultManager];
}
return manager;
}
具体操作
/** 获取沙盒Document目录 */
+ (NSString *)getDocumentDirectory {
return NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES)[0];
}
/** 获取沙盒Liabrary目录 */
+ (NSString *)getLibraryDirectory {
return NSSearchPathForDirectoriesInDomains(NSLibraryDirectory, NSUserDomainMask, YES)[0];
}
/** 获取沙盒Library/Caches目录 */
+ (NSString *)getCachesDirectory {
return NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES)[0];
}
/** 获取沙盒Preference目录 */
+ (NSString *)getPreferenceDirectory {
return NSSearchPathForDirectoriesInDomains(NSPreferencePanesDirectory, NSUserDomainMask, YES)[0];
}
/** 获取沙盒Tmp目录 */
+ (NSString *)getTmpDirectory {
return NSTemporaryDirectory();
}
#pragma mark - 清除沙盒目录文件内容 -
/** 根据路径返回目录或文件的大小 */
+ (CGFloat)sizeWithFilePath:(NSString *)path {
// 1.获得文件管理权限
NSFileManager *manager = [self initFileManager];
// 2.检测路径合理性
BOOL directory = NO;
BOOL exist = [manager fileExistsAtPath:path isDirectory:&directory];
if (!exist) return 0;
// 3.判断是否为文件夹
// 文件夹
if (directory) {
// 这个方法能获得这个文件夹下面的所有子路径(直接\间接子路径)
NSArray *subPaths = [manager subpathsAtPath:path];
int totalSize = 0;
for (NSString *subPath in subPaths) {
NSString *fullSubPath = [path stringByAppendingPathComponent:subPath]; // 拼出子目录的全路径
BOOL directory = NO;
[manager fileExistsAtPath:fullSubPath isDirectory:&directory];
// 子路径是个文件
if (!directory) {
NSDictionary *attrs = [manager attributesOfItemAtPath:fullSubPath error:nil];
totalSize += [attrs[NSFileSize] intValue];
}
}
return totalSize / (1024*1024.0);
}
// 文件
else {
NSDictionary *attrs = [manager attributesOfItemAtPath:path error:nil];
return [attrs[NSFileSize] intValue] / (1024*1024.0);
}
}
/** 得到指定目录下的所有文件 */
+ (NSArray *)getAllFileNames:(NSString *)dirPath {
NSArray *files = [[self initFileManager] subpathsOfDirectoryAtPath:dirPath error:nil];
return files;
}
/** 删除指定目录或文件 */
+ (BOOL)clearCachesWithFilePath:(NSString *)path {
return [[self initFileManager] removeItemAtPath:path error:nil];
}
/** 清空指定目录下文件 */
+ (BOOL)clearCachesFromDirectoryPath:(NSString *)dirPath {
// 获得全部文件数组
NSArray *fileArr = [self getAllFileNames:dirPath];
BOOL flag = NO;
for (NSString *fileName in fileArr) {
NSString *filePath = [dirPath stringByAppendingPathComponent:fileName];
flag = [self clearCachesWithFilePath:filePath];
if (!flag) {
break;
}
}
return flag;
}
/** 清理图片缓存 */
+ (void)clearCachesImage {
SDImageCache *sdCache = [SDImageCache sharedImageCache];
[sdCache clearDisk];
}
/** 清理网页缓存 */
+ (BOOL)clearCachesWeb {
NSString *path = [[self getCachesDirectory] stringByAppendingPathComponent:FILE_CACHE_WebKit];
return [self clearCachesWithFilePath:path];
}
/** 清理信息类缓存 */
+ (BOOL)clearCachesInfo {
return [self clearCachesWithFilePath:[self getCacheUserPath]];
}
/** 清理所有缓存 */
+ (void)clearAllCaches {
[self clearCachesImage];
[self clearCachesWeb];
[self clearCachesInfo];
}
/** 获取缓存大小 */
+ (NSUInteger)getCachesSize {
NSUInteger totalSize = 0;
// 1.动态草稿
// 2.SDWebImage缓存大小
SDImageCache *sdCache = [SDImageCache sharedImageCache];
NSUInteger sdCacheSize = [sdCache getSize];
// 3.用户浏览信息列表缓存
NSArray *filesArr = [self getAllFileNames:[self getCacheUserPath]];
NSUInteger infoSize = 0;
for (NSString *filePath in filesArr) {
NSString *filePathAppend = [[self getCacheUserPath] stringByAppendingPathComponent:filePath];
NSData *data = [NSData dataWithContentsOfFile:filePathAppend];
infoSize += data.length;
}
// 4.WebKit缓存
NSString *webKitPath = [[self getCachesDirectory] stringByAppendingPathComponent:FILE_CACHE_WebKit];
NSArray *webFileArr = [self getAllFileNames:webKitPath];
NSUInteger webSize = 0;
for (NSString *filePath in webFileArr) {
NSString *filePathAppend = [webKitPath stringByAppendingPathComponent:filePath];
NSData *data = [NSData dataWithContentsOfFile:filePathAppend];
webSize += data.length;
}
totalSize = sdCacheSize + infoSize + webSize;
return totalSize;
}
/** 获取缓存大小字符串 */
+ (NSString *)getCachesSizeString {
NSUInteger cacheSize = [self getCachesSize] / 1024 / 1024;
if (cacheSize == 0) return nil;
NSString *cacheSizeStr = cacheSize >= 1 ? [NSString stringWithFormat:@"%luM", (unsigned long)cacheSize] : [NSString stringWithFormat:@"%luK", (unsigned long)cacheSize];
return cacheSizeStr;
}
/** 创建cache/User文件夹 */
+ (void)createUserCacheFile {
NSFileManager *fm = [self initFileManager];
NSString *path = [[self getCachesDirectory] stringByAppendingPathComponent:FILE_CACHE_USER];
if (![fm fileExistsAtPath:path]) {
[fm createDirectoryAtPath:path withIntermediateDirectories:YES attributes:nil error:nil];
} else
NSLog(@"File path Cache/User has been existed !");
}
/** 获取cache/User文件夹路径 */
+ (NSString *)getCacheUserPath {
NSString *userPath = [[self getCachesDirectory] stringByAppendingPathComponent:FILE_CACHE_USER];
return userPath;
}
#pragma mark - 缓存归档与解档 -
/** 归档群组列表 */
+ (void)archiveGroupList:(NSMutableArray *)groupArr {
[self createUserCacheFile];
NSString *path = [[LZSandBoxManager getCacheUserPath] stringByAppendingPathComponent:FILE_Group_list];
[NSKeyedArchiver archiveRootObject:groupArr toFile:path];
}
/** 归档活动列表 */
+ (void)archiveActivityList:(NSMutableArray *)actArr {
[self createUserCacheFile];
NSString *path = [[LZSandBoxManager getCacheUserPath] stringByAppendingPathComponent:FILE_Activity_list];
[NSKeyedArchiver archiveRootObject:actArr toFile:path];
}
/** 载入群组列表缓存 */
+ (NSMutableArray *)unarchiveGroupList {
NSString *path = [[LZSandBoxManager getCacheUserPath] stringByAppendingPathComponent:FILE_Group_list];
NSMutableArray *array = [NSKeyedUnarchiver unarchiveObjectWithFile:path];
return array;
}
/** 载入活动列表缓存 */
+ (NSMutableArray *)unachiveActivityList {
NSString *path = [[LZSandBoxManager getCacheUserPath] stringByAppendingPathComponent:FILE_Activity_list];
NSMutableArray *array = [NSKeyedUnarchiver unarchiveObjectWithFile:path];
return array;
}
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