//获取缓存数量（m）
-(NSString *)getMa
{
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSLibraryDirectory, NSUserDomainMask, YES);
NSString *path = [paths lastObject];
NSString *str = [NSString stringWithFormat:@"%.1fM", [self folderSizeAtPath:path]];
return str;
}
//清除缓存
-(void)clearM
{
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSLibraryDirectory, NSUserDomainMask, YES);
NSString *path = [paths lastObject];
NSString *str = [NSString stringWithFormat:@"缓存已清除%.1fM", [self folderSizeAtPath:path]];
NSArray *files = [[NSFileManager defaultManager] subpathsAtPath:path];
for (NSString *p in files) {
NSError *error;
NSString *Path = [path stringByAppendingPathComponent:p];
NSRange range = [Path rangeOfString:@"Library/Preferences"];
NSLog(@"%ld,%ld\n%@",range.length,range.location,Path);
if (range.location != NSNotFound) {//跳过NSUserDefaults存储
continue;
}
if ([[NSFileManager defaultManager] fileExistsAtPath:Path]) {
[[NSFileManager defaultManager] removeItemAtPath:Path error:&error];
}
}
[QianXiManager alert:str title:nil coll:self block:^(NSInteger num) {
[self.tableView reloadData];
}];
}
//获取缓存数量（k）
- (float ) folderSizeAtPath:(NSString*) folderPath{
NSFileManager* manager = [NSFileManager defaultManager];
if (![manager fileExistsAtPath:folderPath]) return 0;
NSEnumerator *childFilesEnumerator = [[manager subpathsAtPath:folderPath] objectEnumerator];
NSString* fileName;
long long folderSize = 0;
while ((fileName = [childFilesEnumerator nextObject]) != nil){
NSString* fileAbsolutePath = [folderPath stringByAppendingPathComponent:fileName];
folderSize += [self fileSizeAtPath:fileAbsolutePath];
}
return folderSize/(1024.0*1024.0);
}
//获取filePath路径的文件大小
- (long long) fileSizeAtPath:(NSString*) filePath{
NSFileManager* manager = [NSFileManager defaultManager];
if ([manager fileExistsAtPath:filePath]){
return [[manager attributesOfItemAtPath:filePath error:nil] fileSize];
}
return 0;
}
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