http://blog.csdn.net/jymn_chen/article/details/21281019
http://m.blog.csdn.net/article/details?id=51265014
将所有文件存入数组
NSString *string = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0];
NSFileManager *fileManager = [NSFileManager defaultManager];
NSArray *tempFileList = [[NSArray alloc] initWithArray:[fileManager contentsOfDirectoryAtPath:string error:nil]];
移除所有文件
NSString *DocumentsPath = [NSHomeDirectory() stringByAppendingPathComponent:@"Documents"];
NSDirectoryEnumerator *enumerator = [[NSFileManager defaultManager] enumeratorAtPath:DocumentsPath];
for (NSString *fileName in enumerator) {
[[NSFileManager defaultManager] removeItemAtPath:[DocumentsPath stringByAppendingPathComponent:fileName] error:nil];
}
移除所有png文件
NSString *extension = @"png";
NSFileManager *fileManager = [NSFileManager defaultManager];
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSArray *contents = [fileManager contentsOfDirectoryAtPath:documentsDirectory error:nil];
NSEnumerator *enumerator = [contents objectEnumerator];
NSString *filename;
while ((filename = [enumerator nextObject])) {
if ([[filename pathExtension] isEqualToString:extension]) {
[fileManager removeItemAtPath:[documentsDirectory stringByAppendingPathComponent:filename] error:nil];
}
}
