您可以使用NsFileManger讀取目錄和文件, 這裏是一個使用FileManager讀取文件的示例目錄文件
//Object file manager
NSFileManager *FileManager = [NSFileManager defaultManager];
//Read Program folder and create an Array with all folder
NSArray *Paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
//Element in 0 position contain Documents directory
//Faccio la dir dei file della directory
Files = [FileManager contentsOfDirectoryAtPath:[Paths objectAtIndex:0] error:nil];
if(Files) {
//E uno per uno li cancello
for (NSString *File in Files) {
//Here YOU CAN CREATE YOUR STRING, File CONTAINS file Name
}
}