在iPhone中查找文件

Mac下查找文件的标准方法：

NSArray *path = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);  

return[path lastObject];

 iPhone下更加受约束：

#define DOCUMENTS_FOLDER [NSHomeDirectory() stringByAppendingPathComponent:@"Documents"] ;

NSMutableArray *filelist = 

[(NSMutableArray *)[[[NSFileManager defaultManager] directoryContentsAtPath:DOCUMENTS_FOLDER] 

pathsMatchingExtensions:[NSArray arrayWithObjects:@"txt",@"bak",nil]] retain];

 

filelist为可选择的文件列表。